Lin BUS on ESP32 errors compiling

MikeMelga · February 15, 2026, 8:48pm

Hi everyone.

I am trying to read the steering wheel buttons of a Volvo V40. No car involved, just the steering wheel.

I have a DFRobot Firebeetle 2 ESP32-C6, a Lin bus transceiver (TJA1021) a lot of will but not a lot of skill.

I knew I would probably need some help decoding the lin bus….but I did not knew it would be this soon

I started from this projects:

but both of them give me the same error compiling:

Compilation error: #error "The existing code assumes 16Mhz CPU clk."

I’ve read that you have to set the CPU clock manually but I failed with every suggestion I’ve read online.

I am very new to this Arduino/ESP world and not very skilled

Any help would be most appreciated.

Thanks.

ptillisch · February 15, 2026, 9:19pm

Hi @MikeMelga. I'm going to ask you to provide some additional information that might help us to better understand the situation.

This procedure is not intended to solve the problem. The purpose is to gather more information.

Please do this:

Open the sketch in Arduino IDE, just as you did before when you encountered the problem.
Select File > Preferences... (or Arduino IDE > Settings... for macOS users) from the Arduino IDE menus.
The "Preferences" dialog will open.
Check the box next to "Show verbose output during: > ☐ compile" in the "Preferences" dialog.
Click the "OK" button.
The "Preferences" dialog will close.
Select Sketch > Verify/Compile from the Arduino IDE menus.
Wait for the compilation to fail.
You will see a "Compilation error: ..." notification at the bottom right corner of the Arduino IDE window. Click the "COPY ERROR MESSAGES" button on that notification.
Paste the error messages in a reply here.
In order to ensure the text is not corrupted, please use code fencing.

MikeMelga · February 16, 2026, 10:17am

Thanks.

Here are the (long) error messages:

loading library from c:\Users\mikemelga\Documents\Arduino\libraries\libraries\ESP32-SoftwareLIN: invalid library: no header files found
FQBN: esp32:esp32:dfrobot_firebeetle2_esp32c6:CDCOnBoot=cdc,CPUFreq=80
Using board 'dfrobot_firebeetle2_esp32c6' from platform in folder: C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7
Using core 'esp32' from platform in folder: C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7

cmd /c if exist "C:\\Users\\mikemelga\\Documents\\Arduino\\volvo\\partitions.csv" COPY /y "C:\\Users\\mikemelga\\Documents\\Arduino\\volvo\\partitions.csv" "C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE\\partitions.csv"
cmd /c if not exist "C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE\\partitions.csv" if exist "C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.7\\variants\\dfrobot_firebeetle2_esp32c6\\partitions.csv" COPY "C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.7\\variants\\dfrobot_firebeetle2_esp32c6\\partitions.csv" "C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE\\partitions.csv"
cmd /c if not exist "C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE\\partitions.csv" COPY "C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.7\\tools\\partitions\\default.csv" "C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE\\partitions.csv"
cmd /c IF EXIST "C:\\Users\\mikemelga\\Documents\\Arduino\\volvo\\bootloader.bin" ( COPY /y "C:\\Users\\mikemelga\\Documents\\Arduino\\volvo\\bootloader.bin" "C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE\\volvo.ino.bootloader.bin" ) ELSE ( IF EXIST "C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.7\\variants\\dfrobot_firebeetle2_esp32c6\\bootloader.bin" ( COPY "C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.7\\variants\\dfrobot_firebeetle2_esp32c6\\bootloader.bin" "C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE\\volvo.ino.bootloader.bin" ) ELSE ( "C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esptool_py\\5.1.0\\esptool.exe" --chip esp32c6 elf2image --flash-mode dio --flash-freq 80m --flash-size 4MB -o "C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE\\volvo.ino.bootloader.bin" "C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7\\bin\\bootloader_qio_80m.elf" ) )
esptool v5.1.0
Creating ESP32C6 image...
Merged 2 ELF sections.
Successfully created ESP32C6 image.
cmd /c if exist "C:\\Users\\mikemelga\\Documents\\Arduino\\volvo\\build_opt.h" COPY /y "C:\\Users\\mikemelga\\Documents\\Arduino\\volvo\\build_opt.h" "C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE\\build_opt.h"
cmd /c if not exist "C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE\\build_opt.h" type nul > "C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE\\build_opt.h"
cmd /c type nul > "C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE/file_opts"
cmd /c COPY /y "C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7\\sdkconfig" "C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE\\sdkconfig"
        1 file(s) copied.
Detecting libraries used...
C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp-rv32\2511/bin/riscv32-esp-elf-g++ -c @C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/flags/cpp_flags -w -Os -Werror=return-type -w -x c++ -E -CC -DF_CPU=80000000L -DARDUINO=10607 -DARDUINO_DFROBOT_FIREBEETLE_2_ESP32C6 -DARDUINO_ARCH_ESP32 -DARDUINO_BOARD="DFROBOT_FIREBEETLE_2_ESP32C6" -DARDUINO_VARIANT="dfrobot_firebeetle2_esp32c6" -DARDUINO_PARTITION_default -DARDUINO_HOST_OS="windows" -DARDUINO_FQBN="esp32:esp32:dfrobot_firebeetle2_esp32c6:UploadSpeed=921600,CDCOnBoot=cdc,CPUFreq=80,FlashFreq=80,FlashMode=qio,FlashSize=4M,PartitionScheme=default,DebugLevel=none,EraseFlash=none,JTAGAdapter=default,ZigbeeMode=default" -DESP32=ESP32 -DCORE_DEBUG_LEVEL=0 -DARDUINO_USB_MODE=1 -DARDUINO_USB_CDC_ON_BOOT=1 @C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/flags/defines -IC:\Users\mikemelga\Documents\Arduino\volvo -iprefix C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/include/ @C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/flags/includes -IC:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/qio_qspi/include -IC:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\cores\esp32 -IC:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\variants\dfrobot_firebeetle2_esp32c6 @C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE/build_opt.h @C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE/file_opts C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE\sketch\volvo.ino.cpp -o nul
Alternatives for SoftwareSerial.h: [EspSoftwareSerial@8.1.0]
ResolveLibrary(SoftwareSerial.h)
  -> candidates: [EspSoftwareSerial@8.1.0]
C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp-rv32\2511/bin/riscv32-esp-elf-g++ -c @C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/flags/cpp_flags -w -Os -Werror=return-type -w -x c++ -E -CC -DF_CPU=80000000L -DARDUINO=10607 -DARDUINO_DFROBOT_FIREBEETLE_2_ESP32C6 -DARDUINO_ARCH_ESP32 -DARDUINO_BOARD="DFROBOT_FIREBEETLE_2_ESP32C6" -DARDUINO_VARIANT="dfrobot_firebeetle2_esp32c6" -DARDUINO_PARTITION_default -DARDUINO_HOST_OS="windows" -DARDUINO_FQBN="esp32:esp32:dfrobot_firebeetle2_esp32c6:UploadSpeed=921600,CDCOnBoot=cdc,CPUFreq=80,FlashFreq=80,FlashMode=qio,FlashSize=4M,PartitionScheme=default,DebugLevel=none,EraseFlash=none,JTAGAdapter=default,ZigbeeMode=default" -DESP32=ESP32 -DCORE_DEBUG_LEVEL=0 -DARDUINO_USB_MODE=1 -DARDUINO_USB_CDC_ON_BOOT=1 @C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/flags/defines -IC:\Users\mikemelga\Documents\Arduino\volvo -iprefix C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/include/ @C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/flags/includes -IC:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/qio_qspi/include -IC:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\cores\esp32 -IC:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\variants\dfrobot_firebeetle2_esp32c6 -Ic:\Users\mikemelga\Documents\Arduino\libraries\libraries\EspSoftwareSerial\src @C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE/build_opt.h @C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE/file_opts C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE\sketch\volvo.ino.cpp -o nul
Using cached library dependencies for file: C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE\sketch\SoftwareLin.cpp
Using cached library dependencies for file: C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE\sketch\avr_util.cpp
C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp-rv32\2511/bin/riscv32-esp-elf-g++ -c @C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/flags/cpp_flags -w -Os -Werror=return-type -w -x c++ -E -CC -DF_CPU=80000000L -DARDUINO=10607 -DARDUINO_DFROBOT_FIREBEETLE_2_ESP32C6 -DARDUINO_ARCH_ESP32 -DARDUINO_BOARD="DFROBOT_FIREBEETLE_2_ESP32C6" -DARDUINO_VARIANT="dfrobot_firebeetle2_esp32c6" -DARDUINO_PARTITION_default -DARDUINO_HOST_OS="windows" -DARDUINO_FQBN="esp32:esp32:dfrobot_firebeetle2_esp32c6:UploadSpeed=921600,CDCOnBoot=cdc,CPUFreq=80,FlashFreq=80,FlashMode=qio,FlashSize=4M,PartitionScheme=default,DebugLevel=none,EraseFlash=none,JTAGAdapter=default,ZigbeeMode=default" -DESP32=ESP32 -DCORE_DEBUG_LEVEL=0 -DARDUINO_USB_MODE=1 -DARDUINO_USB_CDC_ON_BOOT=1 @C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/flags/defines -IC:\Users\mikemelga\Documents\Arduino\volvo -iprefix C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/include/ @C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/flags/includes -IC:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/qio_qspi/include -IC:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\cores\esp32 -IC:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\variants\dfrobot_firebeetle2_esp32c6 -Ic:\Users\mikemelga\Documents\Arduino\libraries\libraries\EspSoftwareSerial\src @C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE/build_opt.h @C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE/file_opts C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE\sketch\hardware_clock.cpp -o nul
Error while detecting libraries included by C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE\sketch\hardware_clock.cpp
Using cached library dependencies for file: C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE\sketch\lin_frame.cpp
C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp-rv32\2511/bin/riscv32-esp-elf-g++ -c @C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/flags/cpp_flags -w -Os -Werror=return-type -w -x c++ -E -CC -DF_CPU=80000000L -DARDUINO=10607 -DARDUINO_DFROBOT_FIREBEETLE_2_ESP32C6 -DARDUINO_ARCH_ESP32 -DARDUINO_BOARD="DFROBOT_FIREBEETLE_2_ESP32C6" -DARDUINO_VARIANT="dfrobot_firebeetle2_esp32c6" -DARDUINO_PARTITION_default -DARDUINO_HOST_OS="windows" -DARDUINO_FQBN="esp32:esp32:dfrobot_firebeetle2_esp32c6:UploadSpeed=921600,CDCOnBoot=cdc,CPUFreq=80,FlashFreq=80,FlashMode=qio,FlashSize=4M,PartitionScheme=default,DebugLevel=none,EraseFlash=none,JTAGAdapter=default,ZigbeeMode=default" -DESP32=ESP32 -DCORE_DEBUG_LEVEL=0 -DARDUINO_USB_MODE=1 -DARDUINO_USB_CDC_ON_BOOT=1 @C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/flags/defines -IC:\Users\mikemelga\Documents\Arduino\volvo -iprefix C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/include/ @C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/flags/includes -IC:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/qio_qspi/include -IC:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\cores\esp32 -IC:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\variants\dfrobot_firebeetle2_esp32c6 -Ic:\Users\mikemelga\Documents\Arduino\libraries\libraries\EspSoftwareSerial\src @C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE/build_opt.h @C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE/file_opts C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE\sketch\lin_processor.cpp -o nul
Error while detecting libraries included by C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE\sketch\lin_processor.cpp
C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp-rv32\2511/bin/riscv32-esp-elf-g++ -c @C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/flags/cpp_flags -w -Os -Werror=return-type -w -x c++ -E -CC -DF_CPU=80000000L -DARDUINO=10607 -DARDUINO_DFROBOT_FIREBEETLE_2_ESP32C6 -DARDUINO_ARCH_ESP32 -DARDUINO_BOARD="DFROBOT_FIREBEETLE_2_ESP32C6" -DARDUINO_VARIANT="dfrobot_firebeetle2_esp32c6" -DARDUINO_PARTITION_default -DARDUINO_HOST_OS="windows" -DARDUINO_FQBN="esp32:esp32:dfrobot_firebeetle2_esp32c6:UploadSpeed=921600,CDCOnBoot=cdc,CPUFreq=80,FlashFreq=80,FlashMode=qio,FlashSize=4M,PartitionScheme=default,DebugLevel=none,EraseFlash=none,JTAGAdapter=default,ZigbeeMode=default" -DESP32=ESP32 -DCORE_DEBUG_LEVEL=0 -DARDUINO_USB_MODE=1 -DARDUINO_USB_CDC_ON_BOOT=1 @C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/flags/defines -IC:\Users\mikemelga\Documents\Arduino\volvo -iprefix C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/include/ @C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/flags/includes -IC:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/qio_qspi/include -IC:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\cores\esp32 -IC:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\variants\dfrobot_firebeetle2_esp32c6 -Ic:\Users\mikemelga\Documents\Arduino\libraries\libraries\EspSoftwareSerial\src @C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE/build_opt.h @C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE/file_opts C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE\sketch\sio.cpp -o nul
Error while detecting libraries included by C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE\sketch\sio.cpp
C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp-rv32\2511/bin/riscv32-esp-elf-g++ -c @C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/flags/cpp_flags -w -Os -Werror=return-type -w -x c++ -E -CC -DF_CPU=80000000L -DARDUINO=10607 -DARDUINO_DFROBOT_FIREBEETLE_2_ESP32C6 -DARDUINO_ARCH_ESP32 -DARDUINO_BOARD="DFROBOT_FIREBEETLE_2_ESP32C6" -DARDUINO_VARIANT="dfrobot_firebeetle2_esp32c6" -DARDUINO_PARTITION_default -DARDUINO_HOST_OS="windows" -DARDUINO_FQBN="esp32:esp32:dfrobot_firebeetle2_esp32c6:UploadSpeed=921600,CDCOnBoot=cdc,CPUFreq=80,FlashFreq=80,FlashMode=qio,FlashSize=4M,PartitionScheme=default,DebugLevel=none,EraseFlash=none,JTAGAdapter=default,ZigbeeMode=default" -DESP32=ESP32 -DCORE_DEBUG_LEVEL=0 -DARDUINO_USB_MODE=1 -DARDUINO_USB_CDC_ON_BOOT=1 @C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/flags/defines -IC:\Users\mikemelga\Documents\Arduino\volvo -iprefix C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/include/ @C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/flags/includes -IC:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/qio_qspi/include -IC:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\cores\esp32 -IC:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\variants\dfrobot_firebeetle2_esp32c6 -Ic:\Users\mikemelga\Documents\Arduino\libraries\libraries\EspSoftwareSerial\src @C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE/build_opt.h @C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE/file_opts C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE\sketch\system_clock.cpp -o nul
Error while detecting libraries included by C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE\sketch\system_clock.cpp
C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp-rv32\2511/bin/riscv32-esp-elf-g++ -c @C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/flags/cpp_flags -w -Os -Werror=return-type -w -x c++ -E -CC -DF_CPU=80000000L -DARDUINO=10607 -DARDUINO_DFROBOT_FIREBEETLE_2_ESP32C6 -DARDUINO_ARCH_ESP32 -DARDUINO_BOARD="DFROBOT_FIREBEETLE_2_ESP32C6" -DARDUINO_VARIANT="dfrobot_firebeetle2_esp32c6" -DARDUINO_PARTITION_default -DARDUINO_HOST_OS="windows" -DARDUINO_FQBN="esp32:esp32:dfrobot_firebeetle2_esp32c6:UploadSpeed=921600,CDCOnBoot=cdc,CPUFreq=80,FlashFreq=80,FlashMode=qio,FlashSize=4M,PartitionScheme=default,DebugLevel=none,EraseFlash=none,JTAGAdapter=default,ZigbeeMode=default" -DESP32=ESP32 -DCORE_DEBUG_LEVEL=0 -DARDUINO_USB_MODE=1 -DARDUINO_USB_CDC_ON_BOOT=1 @C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/flags/defines -IC:\Users\mikemelga\Documents\Arduino\volvo -iprefix C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/include/ @C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/flags/includes -IC:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/qio_qspi/include -IC:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\cores\esp32 -IC:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\variants\dfrobot_firebeetle2_esp32c6 -Ic:\Users\mikemelga\Documents\Arduino\libraries\libraries\EspSoftwareSerial\src @C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE/build_opt.h @C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE/file_opts c:\Users\mikemelga\Documents\Arduino\libraries\libraries\EspSoftwareSerial\src\SoftwareSerial.cpp -o nul
Generating function prototypes...
C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp-rv32\2511/bin/riscv32-esp-elf-g++ -c @C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/flags/cpp_flags -w -Os -Werror=return-type -w -x c++ -E -CC -DF_CPU=80000000L -DARDUINO=10607 -DARDUINO_DFROBOT_FIREBEETLE_2_ESP32C6 -DARDUINO_ARCH_ESP32 -DARDUINO_BOARD="DFROBOT_FIREBEETLE_2_ESP32C6" -DARDUINO_VARIANT="dfrobot_firebeetle2_esp32c6" -DARDUINO_PARTITION_default -DARDUINO_HOST_OS="windows" -DARDUINO_FQBN="esp32:esp32:dfrobot_firebeetle2_esp32c6:UploadSpeed=921600,CDCOnBoot=cdc,CPUFreq=80,FlashFreq=80,FlashMode=qio,FlashSize=4M,PartitionScheme=default,DebugLevel=none,EraseFlash=none,JTAGAdapter=default,ZigbeeMode=default" -DESP32=ESP32 -DCORE_DEBUG_LEVEL=0 -DARDUINO_USB_MODE=1 -DARDUINO_USB_CDC_ON_BOOT=1 @C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/flags/defines -IC:\Users\mikemelga\Documents\Arduino\volvo -iprefix C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/include/ @C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/flags/includes -IC:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\tools\esp32c6-libs\3.3.7/qio_qspi/include -IC:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\cores\esp32 -IC:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\variants\dfrobot_firebeetle2_esp32c6 -Ic:\Users\mikemelga\Documents\Arduino\libraries\libraries\EspSoftwareSerial\src @C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE/build_opt.h @C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE/file_opts C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE\sketch\volvo.ino.cpp -o C:\Users\mikemelga\AppData\Local\Temp\2108493492\sketch_merged.cpp
C:\Users\mikemelga\AppData\Local\Arduino15\packages\builtin\tools\ctags\5.8-arduino11/ctags -u --language-force=c++ -f - --c++-kinds=svpf --fields=KSTtzns --line-directives C:\Users\mikemelga\AppData\Local\Temp\2108493492\sketch_merged.cpp

Compiling sketch...
"C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp-rv32\\2511/bin/riscv32-esp-elf-g++" -MMD -c "@C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/flags/cpp_flags" -w -Os -Werror=return-type -DF_CPU=80000000L -DARDUINO=10607 -DARDUINO_DFROBOT_FIREBEETLE_2_ESP32C6 -DARDUINO_ARCH_ESP32 "-DARDUINO_BOARD=\"DFROBOT_FIREBEETLE_2_ESP32C6\"" "-DARDUINO_VARIANT=\"dfrobot_firebeetle2_esp32c6\"" -DARDUINO_PARTITION_default "-DARDUINO_HOST_OS=\"windows\"" "-DARDUINO_FQBN=\"esp32:esp32:dfrobot_firebeetle2_esp32c6:UploadSpeed=921600,CDCOnBoot=cdc,CPUFreq=80,FlashFreq=80,FlashMode=qio,FlashSize=4M,PartitionScheme=default,DebugLevel=none,EraseFlash=none,JTAGAdapter=default,ZigbeeMode=default\"" -DESP32=ESP32 -DCORE_DEBUG_LEVEL=0 -DARDUINO_USB_MODE=1 -DARDUINO_USB_CDC_ON_BOOT=1 "@C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/flags/defines" "-IC:\\Users\\mikemelga\\Documents\\Arduino\\volvo" -iprefix "C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/include/" "@C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/flags/includes" "-IC:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/qio_qspi/include" "-IC:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.7\\cores\\esp32" "-IC:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.7\\variants\\dfrobot_firebeetle2_esp32c6" "-Ic:\\Users\\mikemelga\\Documents\\Arduino\\libraries\\libraries\\EspSoftwareSerial\\src" "@C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE/build_opt.h" "@C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE/file_opts" "C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE\\sketch\\sio.cpp" -o "C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE\\sketch\\sio.cpp.o"
"C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp-rv32\\2511/bin/riscv32-esp-elf-g++" -MMD -c "@C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/flags/cpp_flags" -w -Os -Werror=return-type -DF_CPU=80000000L -DARDUINO=10607 -DARDUINO_DFROBOT_FIREBEETLE_2_ESP32C6 -DARDUINO_ARCH_ESP32 "-DARDUINO_BOARD=\"DFROBOT_FIREBEETLE_2_ESP32C6\"" "-DARDUINO_VARIANT=\"dfrobot_firebeetle2_esp32c6\"" -DARDUINO_PARTITION_default "-DARDUINO_HOST_OS=\"windows\"" "-DARDUINO_FQBN=\"esp32:esp32:dfrobot_firebeetle2_esp32c6:UploadSpeed=921600,CDCOnBoot=cdc,CPUFreq=80,FlashFreq=80,FlashMode=qio,FlashSize=4M,PartitionScheme=default,DebugLevel=none,EraseFlash=none,JTAGAdapter=default,ZigbeeMode=default\"" -DESP32=ESP32 -DCORE_DEBUG_LEVEL=0 -DARDUINO_USB_MODE=1 -DARDUINO_USB_CDC_ON_BOOT=1 "@C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/flags/defines" "-IC:\\Users\\mikemelga\\Documents\\Arduino\\volvo" -iprefix "C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/include/" "@C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/flags/includes" "-IC:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/qio_qspi/include" "-IC:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.7\\cores\\esp32" "-IC:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.7\\variants\\dfrobot_firebeetle2_esp32c6" "-Ic:\\Users\\mikemelga\\Documents\\Arduino\\libraries\\libraries\\EspSoftwareSerial\\src" "@C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE/build_opt.h" "@C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE/file_opts" "C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE\\sketch\\system_clock.cpp" -o "C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE\\sketch\\system_clock.cpp.o"
"C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp-rv32\\2511/bin/riscv32-esp-elf-g++" -MMD -c "@C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/flags/cpp_flags" -w -Os -Werror=return-type -DF_CPU=80000000L -DARDUINO=10607 -DARDUINO_DFROBOT_FIREBEETLE_2_ESP32C6 -DARDUINO_ARCH_ESP32 "-DARDUINO_BOARD=\"DFROBOT_FIREBEETLE_2_ESP32C6\"" "-DARDUINO_VARIANT=\"dfrobot_firebeetle2_esp32c6\"" -DARDUINO_PARTITION_default "-DARDUINO_HOST_OS=\"windows\"" "-DARDUINO_FQBN=\"esp32:esp32:dfrobot_firebeetle2_esp32c6:UploadSpeed=921600,CDCOnBoot=cdc,CPUFreq=80,FlashFreq=80,FlashMode=qio,FlashSize=4M,PartitionScheme=default,DebugLevel=none,EraseFlash=none,JTAGAdapter=default,ZigbeeMode=default\"" -DESP32=ESP32 -DCORE_DEBUG_LEVEL=0 -DARDUINO_USB_MODE=1 -DARDUINO_USB_CDC_ON_BOOT=1 "@C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/flags/defines" "-IC:\\Users\\mikemelga\\Documents\\Arduino\\volvo" -iprefix "C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/include/" "@C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/flags/includes" "-IC:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/qio_qspi/include" "-IC:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.7\\cores\\esp32" "-IC:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.7\\variants\\dfrobot_firebeetle2_esp32c6" "-Ic:\\Users\\mikemelga\\Documents\\Arduino\\libraries\\libraries\\EspSoftwareSerial\\src" "@C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE/build_opt.h" "@C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE/file_opts" "C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE\\sketch\\lin_processor.cpp" -o "C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE\\sketch\\lin_processor.cpp.o"
"C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp-rv32\\2511/bin/riscv32-esp-elf-g++" -MMD -c "@C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/flags/cpp_flags" -w -Os -Werror=return-type -DF_CPU=80000000L -DARDUINO=10607 -DARDUINO_DFROBOT_FIREBEETLE_2_ESP32C6 -DARDUINO_ARCH_ESP32 "-DARDUINO_BOARD=\"DFROBOT_FIREBEETLE_2_ESP32C6\"" "-DARDUINO_VARIANT=\"dfrobot_firebeetle2_esp32c6\"" -DARDUINO_PARTITION_default "-DARDUINO_HOST_OS=\"windows\"" "-DARDUINO_FQBN=\"esp32:esp32:dfrobot_firebeetle2_esp32c6:UploadSpeed=921600,CDCOnBoot=cdc,CPUFreq=80,FlashFreq=80,FlashMode=qio,FlashSize=4M,PartitionScheme=default,DebugLevel=none,EraseFlash=none,JTAGAdapter=default,ZigbeeMode=default\"" -DESP32=ESP32 -DCORE_DEBUG_LEVEL=0 -DARDUINO_USB_MODE=1 -DARDUINO_USB_CDC_ON_BOOT=1 "@C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/flags/defines" "-IC:\\Users\\mikemelga\\Documents\\Arduino\\volvo" -iprefix "C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/include/" "@C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/flags/includes" "-IC:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/qio_qspi/include" "-IC:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.7\\cores\\esp32" "-IC:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.7\\variants\\dfrobot_firebeetle2_esp32c6" "-Ic:\\Users\\mikemelga\\Documents\\Arduino\\libraries\\libraries\\EspSoftwareSerial\\src" "@C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE/build_opt.h" "@C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE/file_opts" "C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE\\sketch\\hardware_clock.cpp" -o "C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE\\sketch\\hardware_clock.cpp.o"
"C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp-rv32\\2511/bin/riscv32-esp-elf-g++" -MMD -c "@C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/flags/cpp_flags" -w -Os -Werror=return-type -DF_CPU=80000000L -DARDUINO=10607 -DARDUINO_DFROBOT_FIREBEETLE_2_ESP32C6 -DARDUINO_ARCH_ESP32 "-DARDUINO_BOARD=\"DFROBOT_FIREBEETLE_2_ESP32C6\"" "-DARDUINO_VARIANT=\"dfrobot_firebeetle2_esp32c6\"" -DARDUINO_PARTITION_default "-DARDUINO_HOST_OS=\"windows\"" "-DARDUINO_FQBN=\"esp32:esp32:dfrobot_firebeetle2_esp32c6:UploadSpeed=921600,CDCOnBoot=cdc,CPUFreq=80,FlashFreq=80,FlashMode=qio,FlashSize=4M,PartitionScheme=default,DebugLevel=none,EraseFlash=none,JTAGAdapter=default,ZigbeeMode=default\"" -DESP32=ESP32 -DCORE_DEBUG_LEVEL=0 -DARDUINO_USB_MODE=1 -DARDUINO_USB_CDC_ON_BOOT=1 "@C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/flags/defines" "-IC:\\Users\\mikemelga\\Documents\\Arduino\\volvo" -iprefix "C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/include/" "@C:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/flags/includes" "-IC:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\tools\\esp32c6-libs\\3.3.7/qio_qspi/include" "-IC:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.7\\cores\\esp32" "-IC:\\Users\\mikemelga\\AppData\\Local\\Arduino15\\packages\\esp32\\hardware\\esp32\\3.3.7\\variants\\dfrobot_firebeetle2_esp32c6" "-Ic:\\Users\\mikemelga\\Documents\\Arduino\\libraries\\libraries\\EspSoftwareSerial\\src" "@C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE/build_opt.h" "@C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE/file_opts" "C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE\\sketch\\volvo.ino.cpp" -o "C:\\Users\\mikemelga\\AppData\\Local\\arduino\\sketches\\B196CDBB6746008EAA106E676BDBE5AE\\sketch\\volvo.ino.cpp.o"
Using previously compiled file: C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE\sketch\SoftwareLin.cpp.o
Using previously compiled file: C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE\sketch\avr_util.cpp.o
Using previously compiled file: C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE\sketch\lin_frame.cpp.o
In file included from C:\Users\mikemelga\Documents\Arduino\volvo\system_clock.h:17,
                 from C:\Users\mikemelga\Documents\Arduino\volvo\system_clock.cpp:13:
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.h:48:2: error: #error "The existing code assumes 16Mhz CPU clk."
   48 | #error "The existing code assumes 16Mhz CPU clk."
      |  ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.h: In function 'uint16 hardware_clock::ticksForNonIsr()':
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.h:36:25: error: expected initializer before 'TCNT1'
   36 |     const uint16 result TCNT1;
      |                         ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.h:38:12: error: 'result' was not declared in this scope
   38 |     return result;
      |            ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.h: In function 'uint16 hardware_clock::ticksForIsr()':
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.h:44:12: error: 'TCNT1' was not declared in this scope
   44 |     return TCNT1;
      |            ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\sio.cpp:57:2: error: #error "The existing code assumes 16Mhz CPU clk."
   57 | #error "The existing code assumes 16Mhz CPU clk."
      |  ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\sio.cpp: In function 'void sio::setup()':
C:\Users\mikemelga\Documents\Arduino\volvo\sio.cpp:62:5: error: 'UBRR0H' was not declared in this scope
   62 |     UBRR0H = 0;
      |     ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\sio.cpp:63:5: error: 'UBRR0L' was not declared in this scope
   63 |     UBRR0L = 16;
      |     ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\sio.cpp:64:5: error: 'UCSR0A' was not declared in this scope
   64 |     UCSR0A = H(U2X0);
      |     ^~~~~~
In file included from C:\Users\mikemelga\Documents\Arduino\volvo\sio.h:17,
                 from C:\Users\mikemelga\Documents\Arduino\volvo\sio.cpp:13:
C:\Users\mikemelga\Documents\Arduino\volvo\sio.cpp:64:16: error: 'U2X0' was not declared in this scope
   64 |     UCSR0A = H(U2X0);
      |                ^~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:29:21: note: in definition of macro 'H'
   29 | #define H(x) (1 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\sio.cpp:66:5: error: 'UCSR0B' was not declared in this scope
   66 |     UCSR0B = H(TXEN0);
      |     ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\sio.cpp:66:16: error: 'TXEN0' was not declared in this scope
   66 |     UCSR0B = H(TXEN0);
      |                ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:29:21: note: in definition of macro 'H'
   29 | #define H(x) (1 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\sio.cpp:67:5: error: 'UCSR0C' was not declared in this scope
   67 |     UCSR0C = H(UDORD0) | H(UCPHA0);  //(3 << UCSZ00);
      |     ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\sio.cpp:67:16: error: 'UDORD0' was not declared in this scope
   67 |     UCSR0C = H(UDORD0) | H(UCPHA0);  //(3 << UCSZ00);
      |                ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:29:21: note: in definition of macro 'H'
   29 | #define H(x) (1 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\sio.cpp:67:28: error: 'UCPHA0' was not declared in this scope
   67 |     UCSR0C = H(UDORD0) | H(UCPHA0);  //(3 << UCSZ00);
      |                            ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:29:21: note: in definition of macro 'H'
   29 | #define H(x) (1 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\sio.cpp: In function 'void sio::loop()':
C:\Users\mikemelga\Documents\Arduino\volvo\sio.cpp:80:19: error: 'UCSR0A' was not declared in this scope
   80 |     if (count && (UCSR0A & H(UDRE0))) {
      |                   ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\sio.cpp:80:30: error: 'UDRE0' was not declared in this scope
   80 |     if (count && (UCSR0A & H(UDRE0))) {
      |                              ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:29:21: note: in definition of macro 'H'
   29 | #define H(x) (1 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\sio.cpp:81:7: error: 'UDR0' was not declared in this scope
   81 |       UDR0 = unsafe_dequeue();
      |       ^~~~
In file included from C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:13:
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.h:48:2: error: #error "The existing code assumes 16Mhz CPU clk."
   48 | #error "The existing code assumes 16Mhz CPU clk."
      |  ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:21:2: error: #error "The existing code assumes 16Mhz CPU clk."
   21 | #error "The existing code assumes 16Mhz CPU clk."
      |  ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.h: In function 'uint16 hardware_clock::ticksForNonIsr()':
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.h:36:25: error: expected initializer before 'TCNT1'
   36 |     const uint16 result TCNT1;
      |                         ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.h:38:12: error: 'result' was not declared in this scope
   38 |     return result;
      |            ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.h: In function 'uint16 hardware_clock::ticksForIsr()':
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.h:44:12: error: 'TCNT1' was not declared in this scope
   44 |     return TCNT1;
      |            ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp: In function 'void hardware_clock::setup()':
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:26:5: error: 'TCCR1A' was not declared in this scope
   26 |     TCCR1A = L(COM1A1) | L(COM1A0) | L(COM1B1) | L(COM1B0) | L(WGM11) | L(WGM10);
      |     ^~~~~~
In file included from C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.h:17:
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:26:16: error: 'COM1A1' was not declared in this scope
   26 |     TCCR1A = L(COM1A1) | L(COM1A0) | L(COM1B1) | L(COM1B0) | L(WGM11) | L(WGM10);
      |                ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:26:28: error: 'COM1A0' was not declared in this scope
   26 |     TCCR1A = L(COM1A1) | L(COM1A0) | L(COM1B1) | L(COM1B0) | L(WGM11) | L(WGM10);
      |                            ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:26:40: error: 'COM1B1' was not declared in this scope
   26 |     TCCR1A = L(COM1A1) | L(COM1A0) | L(COM1B1) | L(COM1B0) | L(WGM11) | L(WGM10);
      |                                        ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:26:52: error: 'COM1B0' was not declared in this scope
   26 |     TCCR1A = L(COM1A1) | L(COM1A0) | L(COM1B1) | L(COM1B0) | L(WGM11) | L(WGM10);
      |                                                    ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:26:64: error: 'WGM11' was not declared in this scope
   26 |     TCCR1A = L(COM1A1) | L(COM1A0) | L(COM1B1) | L(COM1B0) | L(WGM11) | L(WGM10);
      |                                                                ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:26:75: error: 'WGM10' was not declared in this scope
   26 |     TCCR1A = L(COM1A1) | L(COM1A0) | L(COM1B1) | L(COM1B0) | L(WGM11) | L(WGM10);
      |                                                                           ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:29:5: error: 'TCCR1B' was not declared in this scope
   29 |     TCCR1B = L(ICNC1) | L(ICES1) | L(WGM13) | L(WGM12) | L(CS12) | H(CS11) | H(CS10);
      |     ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:29:16: error: 'ICNC1' was not declared in this scope
   29 |     TCCR1B = L(ICNC1) | L(ICES1) | L(WGM13) | L(WGM12) | L(CS12) | H(CS11) | H(CS10);
      |                ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:29:27: error: 'ICES1' was not declared in this scope
   29 |     TCCR1B = L(ICNC1) | L(ICES1) | L(WGM13) | L(WGM12) | L(CS12) | H(CS11) | H(CS10);
      |                           ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:29:38: error: 'WGM13' was not declared in this scope
   29 |     TCCR1B = L(ICNC1) | L(ICES1) | L(WGM13) | L(WGM12) | L(CS12) | H(CS11) | H(CS10);
      |                                      ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:29:49: error: 'WGM12' was not declared in this scope
   29 |     TCCR1B = L(ICNC1) | L(ICES1) | L(WGM13) | L(WGM12) | L(CS12) | H(CS11) | H(CS10);
      |                                                 ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:29:60: error: 'CS12' was not declared in this scope
   29 |     TCCR1B = L(ICNC1) | L(ICES1) | L(WGM13) | L(WGM12) | L(CS12) | H(CS11) | H(CS10);
      |                                                            ^~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:29:70: error: 'CS11' was not declared in this scope
   29 |     TCCR1B = L(ICNC1) | L(ICES1) | L(WGM13) | L(WGM12) | L(CS12) | H(CS11) | H(CS10);
      |                                                                      ^~~~
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:29:68: note: in expansion of macro 'H'
   29 |     TCCR1B = L(ICNC1) | L(ICES1) | L(WGM13) | L(WGM12) | L(CS12) | H(CS11) | H(CS10);
      |                                                                    ^
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:29:80: error: 'CS10' was not declared in this scope
   29 |     TCCR1B = L(ICNC1) | L(ICES1) | L(WGM13) | L(WGM12) | L(CS12) | H(CS11) | H(CS10);
      |                                                                                ^~~~
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:29:78: note: in expansion of macro 'H'
   29 |     TCCR1B = L(ICNC1) | L(ICES1) | L(WGM13) | L(WGM12) | L(CS12) | H(CS11) | H(CS10);
      |                                                                              ^
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:31:5: error: 'TCNT1' was not declared in this scope
   31 |     TCNT1 = 0;
      |     ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:33:5: error: 'OCR1A' was not declared in this scope
   33 |     OCR1A = 0;
      |     ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:35:5: error: 'OCR1B' was not declared in this scope
   35 |     OCR1B = 0;
      |     ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:37:5: error: 'TIMSK1' was not declared in this scope
   37 |     TIMSK1 = L(ICIE1) | L(OCIE1B) | L(OCIE1A) | L(TOIE1);
      |     ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:37:16: error: 'ICIE1' was not declared in this scope
   37 |     TIMSK1 = L(ICIE1) | L(OCIE1B) | L(OCIE1A) | L(TOIE1);
      |                ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:37:27: error: 'OCIE1B' was not declared in this scope
   37 |     TIMSK1 = L(ICIE1) | L(OCIE1B) | L(OCIE1A) | L(TOIE1);
      |                           ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:37:39: error: 'OCIE1A' was not declared in this scope
   37 |     TIMSK1 = L(ICIE1) | L(OCIE1B) | L(OCIE1A) | L(TOIE1);
      |                                       ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:37:51: error: 'TOIE1' was not declared in this scope
   37 |     TIMSK1 = L(ICIE1) | L(OCIE1B) | L(OCIE1A) | L(TOIE1);
      |                                                   ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:38:5: error: 'TIFR1' was not declared in this scope
   38 |     TIFR1 = L(ICF1) | L(OCF1B) | L(OCF1A) | L(TOV1);
      |     ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:38:15: error: 'ICF1' was not declared in this scope
   38 |     TIFR1 = L(ICF1) | L(OCF1B) | L(OCF1A) | L(TOV1);
      |               ^~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:38:25: error: 'OCF1B' was not declared in this scope
   38 |     TIFR1 = L(ICF1) | L(OCF1B) | L(OCF1A) | L(TOV1);
      |                         ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:38:36: error: 'OCF1A' was not declared in this scope
   38 |     TIFR1 = L(ICF1) | L(OCF1B) | L(OCF1A) | L(TOV1);
      |                                    ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.cpp:38:47: error: 'TOV1' was not declared in this scope
   38 |     TIFR1 = L(ICF1) | L(OCF1B) | L(OCF1A) | L(TOV1);
      |                                               ^~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
In file included from C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:19:
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.h:48:2: error: #error "The existing code assumes 16Mhz CPU clk."
   48 | #error "The existing code assumes 16Mhz CPU clk."
      |  ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:75:2: error: #error "The existing code assumes 16Mhz CPU clk."
   75 | #error "The existing code assumes 16Mhz CPU clk."
      |  ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.h: In function 'uint16 hardware_clock::ticksForNonIsr()':
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.h:36:25: error: expected initializer before 'TCNT1'
   36 |     const uint16 result TCNT1;
      |                         ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.h:38:12: error: 'result' was not declared in this scope
   38 |     return result;
      |            ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.h: In function 'uint16 hardware_clock::ticksForIsr()':
C:\Users\mikemelga\Documents\Arduino\volvo\hardware_clock.h:44:12: error: 'TCNT1' was not declared in this scope
   44 |     return TCNT1;
      |            ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp: In function 'void lin_processor::rx_pin::setup()':
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:44:7: error: 'DDRD' was not declared in this scope
   44 |       DDR ## port_letter &= ~kPinMask;  \
      |       ^~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:141:3: note: in expansion of macro 'DEFINE_INPUT_PIN'
  141 |   DEFINE_INPUT_PIN(rx_pin, D, 2);
      |   ^~~~~~~~~~~~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:45:7: error: 'PORTD' was not declared in this scope
   45 |       PORT ## port_letter |= kPinMask;  \
      |       ^~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:141:3: note: in expansion of macro 'DEFINE_INPUT_PIN'
  141 |   DEFINE_INPUT_PIN(rx_pin, D, 2);
      |   ^~~~~~~~~~~~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp: In function 'uint8 lin_processor::rx_pin::isHigh()':
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:48:15: error: 'PIND' was not declared in this scope
   48 |       return  PIN##port_letter & kPinMask; \
      |               ^~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:141:3: note: in expansion of macro 'DEFINE_INPUT_PIN'
  141 |   DEFINE_INPUT_PIN(rx_pin, D, 2);
      |   ^~~~~~~~~~~~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp: In function 'void lin_processor::tx1_pin::setHigh()':
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:58:7: error: 'PORTC' was not declared in this scope
   58 |       PORT ## port_letter |= kPinMask; \
      |       ^~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:143:3: note: in expansion of macro 'DEFINE_OUTPUT_PIN'
  143 |   DEFINE_OUTPUT_PIN(tx1_pin, C, 2, 1);
      |   ^~~~~~~~~~~~~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp: In function 'void lin_processor::tx1_pin::setLow()':
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:61:7: error: 'PORTC' was not declared in this scope
   61 |       PORT ## port_letter &= ~kPinMask; \
      |       ^~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:143:3: note: in expansion of macro 'DEFINE_OUTPUT_PIN'
  143 |   DEFINE_OUTPUT_PIN(tx1_pin, C, 2, 1);
      |   ^~~~~~~~~~~~~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp: In function 'void lin_processor::tx1_pin::setup()':
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:64:7: error: 'DDRC' was not declared in this scope
   64 |       DDR ## port_letter |= kPinMask;  \
      |       ^~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:143:3: note: in expansion of macro 'DEFINE_OUTPUT_PIN'
  143 |   DEFINE_OUTPUT_PIN(tx1_pin, C, 2, 1);
      |   ^~~~~~~~~~~~~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp: In function 'void lin_processor::break_pin::setHigh()':
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:58:7: error: 'PORTC' was not declared in this scope
   58 |       PORT ## port_letter |= kPinMask; \
      |       ^~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:146:3: note: in expansion of macro 'DEFINE_OUTPUT_PIN'
  146 |   DEFINE_OUTPUT_PIN(break_pin, C, 0, 0);
      |   ^~~~~~~~~~~~~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp: In function 'void lin_processor::break_pin::setLow()':
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:61:7: error: 'PORTC' was not declared in this scope
   61 |       PORT ## port_letter &= ~kPinMask; \
      |       ^~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:146:3: note: in expansion of macro 'DEFINE_OUTPUT_PIN'
  146 |   DEFINE_OUTPUT_PIN(break_pin, C, 0, 0);
      |   ^~~~~~~~~~~~~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp: In function 'void lin_processor::break_pin::setup()':
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:64:7: error: 'DDRC' was not declared in this scope
   64 |       DDR ## port_letter |= kPinMask;  \
      |       ^~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:146:3: note: in expansion of macro 'DEFINE_OUTPUT_PIN'
  146 |   DEFINE_OUTPUT_PIN(break_pin, C, 0, 0);
      |   ^~~~~~~~~~~~~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp: In function 'void lin_processor::sample_pin::setHigh()':
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:58:7: error: 'PORTB' was not declared in this scope
   58 |       PORT ## port_letter |= kPinMask; \
      |       ^~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:147:3: note: in expansion of macro 'DEFINE_OUTPUT_PIN'
  147 |   DEFINE_OUTPUT_PIN(sample_pin, B, 4, 0);
      |   ^~~~~~~~~~~~~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp: In function 'void lin_processor::sample_pin::setLow()':
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:61:7: error: 'PORTB' was not declared in this scope
   61 |       PORT ## port_letter &= ~kPinMask; \
      |       ^~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:147:3: note: in expansion of macro 'DEFINE_OUTPUT_PIN'
  147 |   DEFINE_OUTPUT_PIN(sample_pin, B, 4, 0);
      |   ^~~~~~~~~~~~~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp: In function 'void lin_processor::sample_pin::setup()':
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:64:7: error: 'DDRB' was not declared in this scope
   64 |       DDR ## port_letter |= kPinMask;  \
      |       ^~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:147:3: note: in expansion of macro 'DEFINE_OUTPUT_PIN'
  147 |   DEFINE_OUTPUT_PIN(sample_pin, B, 4, 0);
      |   ^~~~~~~~~~~~~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp: In function 'void lin_processor::error_pin::setHigh()':
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:58:7: error: 'PORTB' was not declared in this scope
   58 |       PORT ## port_letter |= kPinMask; \
      |       ^~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:148:3: note: in expansion of macro 'DEFINE_OUTPUT_PIN'
  148 |   DEFINE_OUTPUT_PIN(error_pin, B, 3, 0);
      |   ^~~~~~~~~~~~~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp: In function 'void lin_processor::error_pin::setLow()':
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:61:7: error: 'PORTB' was not declared in this scope
   61 |       PORT ## port_letter &= ~kPinMask; \
      |       ^~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:148:3: note: in expansion of macro 'DEFINE_OUTPUT_PIN'
  148 |   DEFINE_OUTPUT_PIN(error_pin, B, 3, 0);
      |   ^~~~~~~~~~~~~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp: In function 'void lin_processor::error_pin::setup()':
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:64:7: error: 'DDRB' was not declared in this scope
   64 |       DDR ## port_letter |= kPinMask;  \
      |       ^~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:148:3: note: in expansion of macro 'DEFINE_OUTPUT_PIN'
  148 |   DEFINE_OUTPUT_PIN(error_pin, B, 3, 0);
      |   ^~~~~~~~~~~~~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp: In function 'void lin_processor::isr_pin::setHigh()':
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:58:7: error: 'PORTC' was not declared in this scope
   58 |       PORT ## port_letter |= kPinMask; \
      |       ^~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:149:3: note: in expansion of macro 'DEFINE_OUTPUT_PIN'
  149 |   DEFINE_OUTPUT_PIN(isr_pin, C, 3, 0);
      |   ^~~~~~~~~~~~~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp: In function 'void lin_processor::isr_pin::setLow()':
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:61:7: error: 'PORTC' was not declared in this scope
   61 |       PORT ## port_letter &= ~kPinMask; \
      |       ^~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:149:3: note: in expansion of macro 'DEFINE_OUTPUT_PIN'
  149 |   DEFINE_OUTPUT_PIN(isr_pin, C, 3, 0);
      |   ^~~~~~~~~~~~~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp: In function 'void lin_processor::isr_pin::setup()':
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:64:7: error: 'DDRC' was not declared in this scope
   64 |       DDR ## port_letter |= kPinMask;  \
      |       ^~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:149:3: note: in expansion of macro 'DEFINE_OUTPUT_PIN'
  149 |   DEFINE_OUTPUT_PIN(isr_pin, C, 3, 0);
      |   ^~~~~~~~~~~~~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp: In function 'void lin_processor::gp_pin::setHigh()':
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:58:7: error: 'PORTD' was not declared in this scope
   58 |       PORT ## port_letter |= kPinMask; \
      |       ^~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:150:3: note: in expansion of macro 'DEFINE_OUTPUT_PIN'
  150 |   DEFINE_OUTPUT_PIN(gp_pin, D, 6, 0);
      |   ^~~~~~~~~~~~~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp: In function 'void lin_processor::gp_pin::setLow()':
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:61:7: error: 'PORTD' was not declared in this scope
   61 |       PORT ## port_letter &= ~kPinMask; \
      |       ^~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:150:3: note: in expansion of macro 'DEFINE_OUTPUT_PIN'
  150 |   DEFINE_OUTPUT_PIN(gp_pin, D, 6, 0);
      |   ^~~~~~~~~~~~~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp: In function 'void lin_processor::gp_pin::setup()':
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:64:7: error: 'DDRD' was not declared in this scope
   64 |       DDR ## port_letter |= kPinMask;  \
      |       ^~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:150:3: note: in expansion of macro 'DEFINE_OUTPUT_PIN'
  150 |   DEFINE_OUTPUT_PIN(gp_pin, D, 6, 0);
      |   ^~~~~~~~~~~~~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp: In function 'void lin_processor::setupTimer()':
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:336:5: error: 'DDRD' was not declared in this scope
  336 |     DDRD |= H(DDD3);
      |     ^~~~
In file included from C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.h:16,
                 from C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:15:
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:336:15: error: 'DDD3' was not declared in this scope; did you mean 'D3'?
  336 |     DDRD |= H(DDD3);
      |               ^~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:29:21: note: in definition of macro 'H'
   29 | #define H(x) (1 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:338:5: error: 'TCCR2A' was not declared in this scope
  338 |     TCCR2A = L(COM2A1) | L(COM2A0) | H(COM2B1) | H(COM2B0) | H(WGM21) | H(WGM20);
      |     ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:338:16: error: 'COM2A1' was not declared in this scope
  338 |     TCCR2A = L(COM2A1) | L(COM2A0) | H(COM2B1) | H(COM2B0) | H(WGM21) | H(WGM20);
      |                ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:338:28: error: 'COM2A0' was not declared in this scope
  338 |     TCCR2A = L(COM2A1) | L(COM2A0) | H(COM2B1) | H(COM2B0) | H(WGM21) | H(WGM20);
      |                            ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:338:40: error: 'COM2B1' was not declared in this scope
  338 |     TCCR2A = L(COM2A1) | L(COM2A0) | H(COM2B1) | H(COM2B0) | H(WGM21) | H(WGM20);
      |                                        ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:29:21: note: in definition of macro 'H'
   29 | #define H(x) (1 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:338:52: error: 'COM2B0' was not declared in this scope
  338 |     TCCR2A = L(COM2A1) | L(COM2A0) | H(COM2B1) | H(COM2B0) | H(WGM21) | H(WGM20);
      |                                                    ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:29:21: note: in definition of macro 'H'
   29 | #define H(x) (1 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:338:64: error: 'WGM21' was not declared in this scope
  338 |     TCCR2A = L(COM2A1) | L(COM2A0) | H(COM2B1) | H(COM2B0) | H(WGM21) | H(WGM20);
      |                                                                ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:29:21: note: in definition of macro 'H'
   29 | #define H(x) (1 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:338:75: error: 'WGM20' was not declared in this scope
  338 |     TCCR2A = L(COM2A1) | L(COM2A0) | H(COM2B1) | H(COM2B0) | H(WGM21) | H(WGM20);
      |                                                                           ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:29:21: note: in definition of macro 'H'
   29 | #define H(x) (1 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:340:12: error: 'CS22' was not declared in this scope
  340 |       ? (H(CS22) | L(CS21) | L(CS20))   // x64
      |            ^~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:29:21: note: in definition of macro 'H'
   29 | #define H(x) (1 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:340:22: error: 'CS21' was not declared in this scope
  340 |       ? (H(CS22) | L(CS21) | L(CS20))   // x64
      |                      ^~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:340:32: error: 'CS20' was not declared in this scope
  340 |       ? (H(CS22) | L(CS21) | L(CS20))   // x64
      |                                ^~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:343:5: error: 'TCCR2B' was not declared in this scope
  343 |     TCCR2B = L(FOC2A) | L(FOC2B) | H(WGM22) | prescaler;
      |     ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:343:16: error: 'FOC2A' was not declared in this scope
  343 |     TCCR2B = L(FOC2A) | L(FOC2B) | H(WGM22) | prescaler;
      |                ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:343:27: error: 'FOC2B' was not declared in this scope
  343 |     TCCR2B = L(FOC2A) | L(FOC2B) | H(WGM22) | prescaler;
      |                           ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:343:38: error: 'WGM22' was not declared in this scope
  343 |     TCCR2B = L(FOC2A) | L(FOC2B) | H(WGM22) | prescaler;
      |                                      ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:29:21: note: in definition of macro 'H'
   29 | #define H(x) (1 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:345:5: error: 'TCNT2' was not declared in this scope
  345 |     TCNT2 = 0;
      |     ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:347:5: error: 'OCR2A' was not declared in this scope
  347 |     OCR2A = config.counts_per_bit() - 1;
      |     ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:350:5: error: 'OCR2B' was not declared in this scope
  350 |     OCR2B = config.counts_per_bit() - 2;
      |     ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:352:5: error: 'TIMSK2' was not declared in this scope
  352 |     TIMSK2 = L(OCIE2B) | H(OCIE2A) | L(TOIE2);
      |     ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:352:16: error: 'OCIE2B' was not declared in this scope
  352 |     TIMSK2 = L(OCIE2B) | H(OCIE2A) | L(TOIE2);
      |                ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:352:28: error: 'OCIE2A' was not declared in this scope
  352 |     TIMSK2 = L(OCIE2B) | H(OCIE2A) | L(TOIE2);
      |                            ^~~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:29:21: note: in definition of macro 'H'
   29 | #define H(x) (1 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:352:40: error: 'TOIE2' was not declared in this scope
  352 |     TIMSK2 = L(OCIE2B) | H(OCIE2A) | L(TOIE2);
      |                                        ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:354:5: error: 'TIFR2' was not declared in this scope
  354 |     TIFR2 = L(OCF2B) | H(OCF2A) | L(TOV2);
      |     ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:354:15: error: 'OCF2B' was not declared in this scope
  354 |     TIFR2 = L(OCF2B) | H(OCF2A) | L(TOV2);
      |               ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:354:26: error: 'OCF2A' was not declared in this scope
  354 |     TIFR2 = L(OCF2B) | H(OCF2A) | L(TOV2);
      |                          ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:29:21: note: in definition of macro 'H'
   29 | #define H(x) (1 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:354:37: error: 'TOV2' was not declared in this scope
  354 |     TIFR2 = L(OCF2B) | H(OCF2A) | L(TOV2);
      |                                     ^~~~
C:\Users\mikemelga\Documents\Arduino\volvo\avr_util.h:30:21: note: in definition of macro 'L'
   30 | #define L(x) (0 << (x))
      |                     ^
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp: In function 'void lin_processor::resetTickTimer()':
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:386:5: error: 'TCNT2' was not declared in this scope
  386 |     TCNT2 = 0;
      |     ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp: In function 'void lin_processor::setTimerToHalfTick()':
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:396:5: error: 'TCNT2' was not declared in this scope
  396 |     TCNT2 = config.counts_per_half_bit();
      |     ^~~~~
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp: At global scope:
C:\Users\mikemelga\Documents\Arduino\volvo\lin_processor.cpp:603:6: error: expected constructor, destructor, or type conversion before '(' token
  603 |   ISR(TIMER2_COMPA_vect)
      |      ^
C:\Users\mikemelga\Documents\Arduino\volvo\volvo.ino: In function 'void setup()':
C:\Users\mikemelga\Documents\Arduino\volvo\volvo.ino:47:15: error: no matching function for call to 'HWCDC::begin(int, SerialConfig)'
   47 |   Serial.begin(9600, SERIAL_8E1);
In file included from C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\cores\esp32/HardwareSerial.h:53,
                 from C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\cores\esp32/Arduino.h:202,
                 from C:\Users\mikemelga\AppData\Local\arduino\sketches\B196CDBB6746008EAA106E676BDBE5AE\sketch\volvo.ino.cpp:1:
C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\cores\esp32/HWCDC.h:61:8: note: candidate: 'void HWCDC::begin(long unsigned int)'
   61 |   void begin(unsigned long baud = 0);
      |        ^~~~~
C:\Users\mikemelga\AppData\Local\Arduino15\packages\esp32\hardware\esp32\3.3.7\cores\esp32/HWCDC.h:61:8: note:   candidate expects 1 argument, 2 provided
C:\Users\mikemelga\Documents\Arduino\volvo\volvo.ino: In function 'void loop()':
C:\Users\mikemelga\Documents\Arduino\volvo\volvo.ino:68:13: error: 'class LinFrame' has no member named 'pop_byte'
   68 |       frame.pop_byte();
      |             ^~~~~~~~
Using library EspSoftwareSerial at version 8.1.0 in folder: C:\Users\mikemelga\Documents\Arduino\libraries\libraries\EspSoftwareSerial 
exit status 1

Compilation error: #error "The existing code assumes 16Mhz CPU clk."

It seems to throw a lot of errors :(

MikeMelga · February 16, 2026, 12:29pm

btw,

I programmed this sketch on an Arduino Pro Micro and had no errors. But I need it to run on an esp32 to add BLE functions :(

Topic		Replies	Views
E (2200) phy_comm: gpio[0] number: 2 is reserved Programming	17	1731	December 14, 2025
Error whit compiling can any one helpe? Programming	8	57	April 15, 2026
Why am I getting this error? Programming	17	127	December 29, 2025
I'm trying to learn ESP32 with ili9431 Programming	45	350	February 2, 2026
Probleme mit GFXLibrary for Arduino ab 1.6.2 Deutsch	20	261	January 25, 2026

Lin BUS on ESP32 errors compiling

Related topics