Declaration of variables

pert · September 1, 2016, 5:20pm

Cristian Maglie's(one of the lead Arduino developers) comment on the GitHub issue indicates that this is something the Arduino developers are interested in fixing but he can't reproduce the issue:

github.com/arduino/Arduino

"ld returned 5 exit status" on Win XP

opened 02:51PM - 17 Apr 15 UTC

closed 02:44PM - 30 Mar 17 UTC

oldmaker

OS: Windows Component: Toolchain Architecture: AVR

Two sketches of mine (only those two), compiling fine with IDE 1.0.x, cannot com…pile with new IDEs (on Windows XP): after the syntax check, appears a Windows error relative to ld.exe; then compilation stops with message **"collect2.exe: error: ld returned 5 exit status"**. Issue context: **IDE 1.6.1 or 1.6.2 or 1.6.3 O.S. Windows XP** The same sketches, with IDE 1.6.x, on another PC with Windows 8.1, compiles OK. The same sketches, with IDE 1.0.x, compiles OK. I discovered a (ridiculous) work-around: adding some totally useless global variables, the two sketches compiles OK also with IDE 1.6.x on Win XP: ``` c++ int y = 0; int z = 0; int w = 0; ``` The first sketch needs at least 3 additional global variables, the second at least 6. It doesn't matter the name, the type or the values; the only requirement seems to be the number of variables added. Similar issues on this site: #2768 and #2813 Verbose debug output of IDE 1.6.3, on Windows XP: ``` Loading configuration... Initializing packages... Preparing boards... Starting... Uso la libreria Wire nella cartella: C:\Programmi\Arduino\hardware\arduino\avr\libraries\Wire C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard -IC:\Programmi\Arduino\hardware\arduino\avr\libraries\Wire C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Demo_NHD0420CW-Ax3_I2C.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Demo_NHD0420CW-Ax3_I2C.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard -IC:\Programmi\Arduino\hardware\arduino\avr\libraries\Wire -IC:\Programmi\Arduino\hardware\arduino\avr\libraries\Wire\utility C:\Programmi\Arduino\hardware\arduino\avr\libraries\Wire\Wire.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Wire\Wire.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-gcc -c -g -Os -w -ffunction-sections -fdata-sections -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard -IC:\Programmi\Arduino\hardware\arduino\avr\libraries\Wire -IC:\Programmi\Arduino\hardware\arduino\avr\libraries\Wire\utility C:\Programmi\Arduino\hardware\arduino\avr\libraries\Wire\utility\twi.c -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Wire\utility\twi.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-gcc -c -g -Os -w -ffunction-sections -fdata-sections -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\hooks.c -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\hooks.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-gcc -c -g -Os -w -ffunction-sections -fdata-sections -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\WInterrupts.c -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\WInterrupts.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-gcc -c -g -Os -w -ffunction-sections -fdata-sections -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\wiring.c -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\wiring.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-gcc -c -g -Os -w -ffunction-sections -fdata-sections -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\wiring_analog.c -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\wiring_analog.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-gcc -c -g -Os -w -ffunction-sections -fdata-sections -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\wiring_digital.c -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\wiring_digital.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-gcc -c -g -Os -w -ffunction-sections -fdata-sections -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\wiring_pulse.c -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\wiring_pulse.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-gcc -c -g -Os -w -ffunction-sections -fdata-sections -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\wiring_shift.c -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\wiring_shift.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\abi.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\abi.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\CDC.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\CDC.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\HardwareSerial.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\HardwareSerial.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\HardwareSerial0.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\HardwareSerial0.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\HardwareSerial1.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\HardwareSerial1.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\HardwareSerial2.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\HardwareSerial2.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\HardwareSerial3.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\HardwareSerial3.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\HID.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\HID.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\IPAddress.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\IPAddress.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\main.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\main.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\new.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\new.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\Print.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Print.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\Stream.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Stream.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\Tone.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Tone.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\USBCore.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\USBCore.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\WMath.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\WMath.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\WString.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\WString.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\hooks.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\WInterrupts.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\wiring.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\wiring_analog.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\wiring_digital.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\wiring_pulse.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\wiring_shift.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\abi.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\CDC.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\HardwareSerial.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\HardwareSerial0.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\HardwareSerial1.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\HardwareSerial2.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\HardwareSerial3.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\HID.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\IPAddress.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\main.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\new.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Print.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Stream.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Tone.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\USBCore.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\WMath.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\WString.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-gcc -w -Os -Wl,--gc-sections -mmcu=atmega328p -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/Demo_NHD0420CW-Ax3_I2C.cpp.elf C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Demo_NHD0420CW-Ax3_I2C.cpp.o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Wire\Wire.cpp.o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Wire\utility\twi.c.o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a -LC:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp -lm collect2.exe: error: ld returned 5 exit status Errore durante la compilazione ``` The sketch: ``` c++ /* * Demo_NHD0420CW-Ax3_I2C.ino * * Tutorial sketch for use of character OLED slim display family by Newhaven with Arduino Uno, using * only Wire (I2C) library. Models: NHD0420CW-Ax3, NHD0220CW-Ax3, NHD0216CW-Ax3. Controller: US2066 * in this example, the display is connected to Arduino via I2C interface. * * Displays on the OLED alternately a 4-line message and a sequence of character "block". * This sketch assumes the use of a 4x20 display; if different, modify the values of the two variables * ROW_N e COLUMN_N. * The sketch uses the minimum possible of Arduino's pins; if you intend to use also /RES line, * the related instructions are already present, it's sufficient to remove the comment markers. * * The circuit: * OLED pin 1 (Vss) to Arduino pin ground * OLED pin 2 (VDD) to Arduino pin 5V * OLED pin 3 (REGVDD) to Arduino pin 5V * OLED pin 4 (SA0) to Vss ground (to assign I2C address 0x3D, connect to VDD 5V) * OLED pin 5 and 6 to Vss ground * OLED pin 7 (SCL) to Arduino pin A5 (SCL); 10K pull-up resistor on OLED pin * OLED pin 8 and 9 (SDAin,SDAout) to Arduino pin A4 (SDA); 10K pull-up resistor on OLED pin * OLED pin 10 to 15 to Vss ground * OLED pin 16 (/RES) to Arduino pin Reset or VDD 5V (or to Arduino pin D3, to control reset by sw) * OLED pin 17 (BS0) to Vss ground * OLED pin 18 (BS1) to VDD 5V * OLED pin 19 (BS2) to Vss ground * OLED pin 20 (Vss) to Vss ground * * Original example created by Newhaven Display International Inc. * Modified and adapted to Arduino Uno 15 Mar 2015 by Pasquale D'Antini * * This example code is in the public domain. */ #include <Wire.h> const byte ROW_N = 4; // Number of display rows const byte COLUMN_N = 20; // Number of display columns //const byte RES = 3; // Arduino's pins assigned to the Reset line (optional, can be always high) const byte slave2w = 0x3C; // Display I2C address, in 7-bit form: 0x3C if SA0=LOW, 0x3D if SA0=HIGH const byte NEW_LINE[4] = {0x80, 0xA0, 0xC0, 0xE0}; // DDRAM address for each line of the display const byte TEXT[4][21] = {"1-Newhaven Display--", "2-------Test--------", "3-16/20-Characters--", "4!@#$%^&*()_+{}[]<>?"}; // Strings to be displayed byte tx_packet[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; // Packet to be transmitted (max 20 bytes) // _______________________________________________________________________________________ void command(byte c) // SUBROUTINE: PREPARES THE TRANSMISSION OF A COMMAND { tx_packet[0] = 0x00; // Control Byte; C0_bit=0, D/C_bit=0 -> following Data Byte contains command tx_packet[1] = c; // Data Byte: the command to be executed by the display send_packet(2); // Transmits the two bytes } // _______________________________________________________________________________________ void data(byte d) // SUBROUTINE: PREPARES THE TRANSMISSION OF A BYTE OF DATA { tx_packet[0] = 0x40; // Control Byte; C0_bit=0, D/C_bit=1 -> following Data Byte contains data tx_packet[1] = d; // Data Byte: the character to be displayed send_packet(2); // Transmits the two bytes } // _______________________________________________________________________________________ void send_packet(byte x) // SUBROUTINE: SEND TO THE DISPLAY THE x BYTES STORED IN tx_packet { byte ix = 0; // Bytes index Wire.beginTransmission(slave2w); // Begin the transmission via I2C to the display with the given address for(ix=0; ix<x; ix++) // One byte at a time, { Wire.write(tx_packet[ix]); // queue bytes for transmission } Wire.endTransmission(); // Transmits the bytes that were queued } // _______________________________________________________________________________________ void output(void) // SUBROUTINE: DISPLAYS THE FOUR STRINGS, THEN THE SAME IN REVERSE ORDER { byte r = 0; // Row index byte c = 0; // Column index command(0x01); // Clears display (and cursor home) delay(5); // Waits 5 ms (after a clear display, a minimum pause of 1-2 ms is required) for (r=0; r<ROW_N; r++) // One row at a time, { command(NEW_LINE[r]); // moves the cursor to the first column of that line for (c=0; c<COLUMN_N; c++) // One character at a time, { data(TEXT[r][c]); // displays the correspondig string } } delay(2000); // Waits 2 sec (only for visual effect purpose) for (r=0; r<ROW_N; r++) // One row at a time, { command(NEW_LINE[r]); // moves the cursor to the first column of that line for (c=0; c<COLUMN_N; c++) // One character at a time, { data(TEXT[3-r][c]); // displays the correspondig string (in reverse order) } } } // _______________________________________________________________________________________ void blocks(void) // SUBROUTINE: FILLS THE ENTIRE DISPLAY WITH THE CHARACTER "BLOCK" { byte r = 0; // Row index byte c = 0; // Column index command(0x01); // Clear display (and cursor home) delay(5); // Waits 5 ms (after a clear display, a minimum pause of 1-2 ms is required) for (r=0; r<ROW_N; r++) // One row at a time, { command(NEW_LINE[r]); // moves the cursor to the first column of that line for (c=0; c<COLUMN_N; c++) // One character at a time, { data(0xDB); // displays the character 0xDB (block) delay(100); // Waits 100 ms (only for visual effect purpose) } delay(1000); // Waits 1 sec (only for visual effect purpose) } } // _______________________________________________________________________________________ void setup(void) // INITIAL SETUP { // pinMode(RES, OUTPUT); // Initializes Arduino pin for the Reset line (optional) // digitalWrite(RES, HIGH); // Sets HIGH the Reset line of the display (optional, can be always high) delayMicroseconds(200); // Waits 200 us for stabilization purpose Wire.begin(); // Initiate the Wire library and join the I2C bus as a master delay(10); // Waits 10 ms for stabilization purpose command(0x2A); // Function set: extended command set (RE=1), CGRAM blink disable, normal display (def. val.) command(0x71); // Function selection A: data(0x5C); // enable internal Vdd regulator at 5V I/O mode (def. value) (0x00 for disable, 2.8V I/O) command(0x28); // Function set: fundamental command set (RE=0) (exit from extended command set) command(0x08); // Display ON/OFF control: display off, cursor off, blink off (default values) command(0x2A); // Function set: extended command set (RE=1), CGRAM blink disable, normal display (def. val.) command(0x79); // OLED characterization: OLED command set enabled (SD=1) command(0xD5); // Set display clock divide ratio/oscillator frequency: command(0x70); // divide ratio=1, frequency=7 (default values) command(0x78); // OLED characterization: OLED command set disabled (SD=0) (exit from OLED command set) command(0x09); // Extended function set (RE=1): 5-dot font, B/W inverting disabled (def. val.), 3/4 lines // 0x08 for 2 lines ? command(0x06); // Entry Mode set - COM/SEG direction: COM0->COM31, SEG99->SEG0 (BDC=1, BDS=0) command(0x72); // Function selection B: data(0x0A); // ROM/CGRAM selection: ROM C, CGROM=250, CGRAM=6 (ROM=10, OPR=10) command(0x2A); // Function set: extended command set (RE=1), CGRAM blink disable, normal display (def. val.) command(0x79); // OLED characterization: OLED command set enabled (SD=1) command(0xDA); // Set SEG pins hardware configuration: command(0x10); // alternative odd/even SEG pin, disable SEG left/right remap (default values) command(0xDC); // Function selection C: command(0x00); // internal VSL, GPIO input disable command(0x81); // Set contrast control: command(0x7F); // contrast=127 (default value) command(0xD9); // Set phase length: command(0xF1); // phase2=15, phase1=1 (default: 0x78) command(0xDB); // set VCOMH deselect level: command(0x40); // VCOMH deselect level=1 x Vcc (default: 0x20=0,77 x Vcc) command(0x78); // OLED characterization: OLED command set disabled (SD=0) (exit from OLED command set) command(0x28); // Function set: fundamental command set (RE=0) (exit from extended command set) command(0x01); // Clear display delay(5); // Waits 5 ms (after a clear display, a minimum pause of 1-2 ms is required) command(0x80); // Set DDRAM address 0x00 in address counter (cursor home) (default value) command(0x0C); // Display ON/OFF control: display ON, cursor off, blink off delay(300); // Waits 300 ms for stabilization purpose after display on } // _______________________________________________________________________________________ void loop(void) // MAIN PROGRAM { output(); // Execute subroutine "output" delay(2000); // Waits 2 sec (only for visual effect purpose) blocks(); // Execute subroutine "blocks" delay(2000); // Waits 2 sec (only for visual effect purpose) } ``` Windows crash messages: ![screenshot1](https://cloud.githubusercontent.com/assets/11994305/7203517/833c8a60-e51b-11e4-8cb8-d874d7a481be.png) ![screenshot2](https://cloud.githubusercontent.com/assets/11994305/7203518/834268fe-e51b-11e4-9e01-1250e08c4ac7.png) ![screenshot3](https://cloud.githubusercontent.com/assets/11994305/7203516/8335b258-e51b-11e4-89eb-7eab1a0adbbc.png)

I don't think it's a high priority but it sounds like if someone would point them in the right direction the developers would probably have a try at a fix. It may end up that the fix would need to be made upstream.

Interestingly, the comment from the Arduino webmaster indicates that they would also like Create, the web IDE, to support XP:

github.com/arduino/Arduino

"ld returned 5 exit status" on Win XP

opened 02:51PM - 17 Apr 15 UTC

closed 02:44PM - 30 Mar 17 UTC

oldmaker

OS: Windows Component: Toolchain Architecture: AVR

Two sketches of mine (only those two), compiling fine with IDE 1.0.x, cannot com…pile with new IDEs (on Windows XP): after the syntax check, appears a Windows error relative to ld.exe; then compilation stops with message **"collect2.exe: error: ld returned 5 exit status"**. Issue context: **IDE 1.6.1 or 1.6.2 or 1.6.3 O.S. Windows XP** The same sketches, with IDE 1.6.x, on another PC with Windows 8.1, compiles OK. The same sketches, with IDE 1.0.x, compiles OK. I discovered a (ridiculous) work-around: adding some totally useless global variables, the two sketches compiles OK also with IDE 1.6.x on Win XP: ``` c++ int y = 0; int z = 0; int w = 0; ``` The first sketch needs at least 3 additional global variables, the second at least 6. It doesn't matter the name, the type or the values; the only requirement seems to be the number of variables added. Similar issues on this site: #2768 and #2813 Verbose debug output of IDE 1.6.3, on Windows XP: ``` Loading configuration... Initializing packages... Preparing boards... Starting... Uso la libreria Wire nella cartella: C:\Programmi\Arduino\hardware\arduino\avr\libraries\Wire C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard -IC:\Programmi\Arduino\hardware\arduino\avr\libraries\Wire C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Demo_NHD0420CW-Ax3_I2C.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Demo_NHD0420CW-Ax3_I2C.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard -IC:\Programmi\Arduino\hardware\arduino\avr\libraries\Wire -IC:\Programmi\Arduino\hardware\arduino\avr\libraries\Wire\utility C:\Programmi\Arduino\hardware\arduino\avr\libraries\Wire\Wire.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Wire\Wire.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-gcc -c -g -Os -w -ffunction-sections -fdata-sections -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard -IC:\Programmi\Arduino\hardware\arduino\avr\libraries\Wire -IC:\Programmi\Arduino\hardware\arduino\avr\libraries\Wire\utility C:\Programmi\Arduino\hardware\arduino\avr\libraries\Wire\utility\twi.c -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Wire\utility\twi.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-gcc -c -g -Os -w -ffunction-sections -fdata-sections -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\hooks.c -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\hooks.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-gcc -c -g -Os -w -ffunction-sections -fdata-sections -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\WInterrupts.c -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\WInterrupts.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-gcc -c -g -Os -w -ffunction-sections -fdata-sections -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\wiring.c -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\wiring.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-gcc -c -g -Os -w -ffunction-sections -fdata-sections -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\wiring_analog.c -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\wiring_analog.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-gcc -c -g -Os -w -ffunction-sections -fdata-sections -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\wiring_digital.c -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\wiring_digital.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-gcc -c -g -Os -w -ffunction-sections -fdata-sections -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\wiring_pulse.c -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\wiring_pulse.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-gcc -c -g -Os -w -ffunction-sections -fdata-sections -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\wiring_shift.c -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\wiring_shift.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\abi.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\abi.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\CDC.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\CDC.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\HardwareSerial.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\HardwareSerial.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\HardwareSerial0.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\HardwareSerial0.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\HardwareSerial1.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\HardwareSerial1.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\HardwareSerial2.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\HardwareSerial2.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\HardwareSerial3.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\HardwareSerial3.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\HID.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\HID.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\IPAddress.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\IPAddress.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\main.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\main.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\new.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\new.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\Print.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Print.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\Stream.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Stream.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\Tone.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Tone.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\USBCore.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\USBCore.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\WMath.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\WMath.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-g++ -c -g -Os -w -fno-exceptions -ffunction-sections -fdata-sections -fno-threadsafe-statics -MMD -mmcu=atmega328p -DF_CPU=16000000L -DARDUINO=10603 -DARDUINO_AVR_UNO -DARDUINO_ARCH_AVR -IC:\Programmi\Arduino\hardware\arduino\avr\cores\arduino -IC:\Programmi\Arduino\hardware\arduino\avr\variants\standard C:\Programmi\Arduino\hardware\arduino\avr\cores\arduino\WString.cpp -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\WString.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\hooks.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\WInterrupts.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\wiring.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\wiring_analog.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\wiring_digital.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\wiring_pulse.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\wiring_shift.c.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\abi.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\CDC.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\HardwareSerial.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\HardwareSerial0.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\HardwareSerial1.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\HardwareSerial2.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\HardwareSerial3.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\HID.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\IPAddress.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\main.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\new.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Print.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Stream.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Tone.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\USBCore.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\WMath.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-ar rcs C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\WString.cpp.o C:\Programmi\Arduino\hardware\tools\avr/bin/avr-gcc -w -Os -Wl,--gc-sections -mmcu=atmega328p -o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/Demo_NHD0420CW-Ax3_I2C.cpp.elf C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Demo_NHD0420CW-Ax3_I2C.cpp.o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Wire\Wire.cpp.o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp\Wire\utility\twi.c.o C:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp/core.a -LC:\DOCUME~1\Pasquale\IMPOST~1\Temp\build9152852205119054589.tmp -lm collect2.exe: error: ld returned 5 exit status Errore durante la compilazione ``` The sketch: ``` c++ /* * Demo_NHD0420CW-Ax3_I2C.ino * * Tutorial sketch for use of character OLED slim display family by Newhaven with Arduino Uno, using * only Wire (I2C) library. Models: NHD0420CW-Ax3, NHD0220CW-Ax3, NHD0216CW-Ax3. Controller: US2066 * in this example, the display is connected to Arduino via I2C interface. * * Displays on the OLED alternately a 4-line message and a sequence of character "block". * This sketch assumes the use of a 4x20 display; if different, modify the values of the two variables * ROW_N e COLUMN_N. * The sketch uses the minimum possible of Arduino's pins; if you intend to use also /RES line, * the related instructions are already present, it's sufficient to remove the comment markers. * * The circuit: * OLED pin 1 (Vss) to Arduino pin ground * OLED pin 2 (VDD) to Arduino pin 5V * OLED pin 3 (REGVDD) to Arduino pin 5V * OLED pin 4 (SA0) to Vss ground (to assign I2C address 0x3D, connect to VDD 5V) * OLED pin 5 and 6 to Vss ground * OLED pin 7 (SCL) to Arduino pin A5 (SCL); 10K pull-up resistor on OLED pin * OLED pin 8 and 9 (SDAin,SDAout) to Arduino pin A4 (SDA); 10K pull-up resistor on OLED pin * OLED pin 10 to 15 to Vss ground * OLED pin 16 (/RES) to Arduino pin Reset or VDD 5V (or to Arduino pin D3, to control reset by sw) * OLED pin 17 (BS0) to Vss ground * OLED pin 18 (BS1) to VDD 5V * OLED pin 19 (BS2) to Vss ground * OLED pin 20 (Vss) to Vss ground * * Original example created by Newhaven Display International Inc. * Modified and adapted to Arduino Uno 15 Mar 2015 by Pasquale D'Antini * * This example code is in the public domain. */ #include <Wire.h> const byte ROW_N = 4; // Number of display rows const byte COLUMN_N = 20; // Number of display columns //const byte RES = 3; // Arduino's pins assigned to the Reset line (optional, can be always high) const byte slave2w = 0x3C; // Display I2C address, in 7-bit form: 0x3C if SA0=LOW, 0x3D if SA0=HIGH const byte NEW_LINE[4] = {0x80, 0xA0, 0xC0, 0xE0}; // DDRAM address for each line of the display const byte TEXT[4][21] = {"1-Newhaven Display--", "2-------Test--------", "3-16/20-Characters--", "4!@#$%^&*()_+{}[]<>?"}; // Strings to be displayed byte tx_packet[]={0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00,0x00}; // Packet to be transmitted (max 20 bytes) // _______________________________________________________________________________________ void command(byte c) // SUBROUTINE: PREPARES THE TRANSMISSION OF A COMMAND { tx_packet[0] = 0x00; // Control Byte; C0_bit=0, D/C_bit=0 -> following Data Byte contains command tx_packet[1] = c; // Data Byte: the command to be executed by the display send_packet(2); // Transmits the two bytes } // _______________________________________________________________________________________ void data(byte d) // SUBROUTINE: PREPARES THE TRANSMISSION OF A BYTE OF DATA { tx_packet[0] = 0x40; // Control Byte; C0_bit=0, D/C_bit=1 -> following Data Byte contains data tx_packet[1] = d; // Data Byte: the character to be displayed send_packet(2); // Transmits the two bytes } // _______________________________________________________________________________________ void send_packet(byte x) // SUBROUTINE: SEND TO THE DISPLAY THE x BYTES STORED IN tx_packet { byte ix = 0; // Bytes index Wire.beginTransmission(slave2w); // Begin the transmission via I2C to the display with the given address for(ix=0; ix<x; ix++) // One byte at a time, { Wire.write(tx_packet[ix]); // queue bytes for transmission } Wire.endTransmission(); // Transmits the bytes that were queued } // _______________________________________________________________________________________ void output(void) // SUBROUTINE: DISPLAYS THE FOUR STRINGS, THEN THE SAME IN REVERSE ORDER { byte r = 0; // Row index byte c = 0; // Column index command(0x01); // Clears display (and cursor home) delay(5); // Waits 5 ms (after a clear display, a minimum pause of 1-2 ms is required) for (r=0; r<ROW_N; r++) // One row at a time, { command(NEW_LINE[r]); // moves the cursor to the first column of that line for (c=0; c<COLUMN_N; c++) // One character at a time, { data(TEXT[r][c]); // displays the correspondig string } } delay(2000); // Waits 2 sec (only for visual effect purpose) for (r=0; r<ROW_N; r++) // One row at a time, { command(NEW_LINE[r]); // moves the cursor to the first column of that line for (c=0; c<COLUMN_N; c++) // One character at a time, { data(TEXT[3-r][c]); // displays the correspondig string (in reverse order) } } } // _______________________________________________________________________________________ void blocks(void) // SUBROUTINE: FILLS THE ENTIRE DISPLAY WITH THE CHARACTER "BLOCK" { byte r = 0; // Row index byte c = 0; // Column index command(0x01); // Clear display (and cursor home) delay(5); // Waits 5 ms (after a clear display, a minimum pause of 1-2 ms is required) for (r=0; r<ROW_N; r++) // One row at a time, { command(NEW_LINE[r]); // moves the cursor to the first column of that line for (c=0; c<COLUMN_N; c++) // One character at a time, { data(0xDB); // displays the character 0xDB (block) delay(100); // Waits 100 ms (only for visual effect purpose) } delay(1000); // Waits 1 sec (only for visual effect purpose) } } // _______________________________________________________________________________________ void setup(void) // INITIAL SETUP { // pinMode(RES, OUTPUT); // Initializes Arduino pin for the Reset line (optional) // digitalWrite(RES, HIGH); // Sets HIGH the Reset line of the display (optional, can be always high) delayMicroseconds(200); // Waits 200 us for stabilization purpose Wire.begin(); // Initiate the Wire library and join the I2C bus as a master delay(10); // Waits 10 ms for stabilization purpose command(0x2A); // Function set: extended command set (RE=1), CGRAM blink disable, normal display (def. val.) command(0x71); // Function selection A: data(0x5C); // enable internal Vdd regulator at 5V I/O mode (def. value) (0x00 for disable, 2.8V I/O) command(0x28); // Function set: fundamental command set (RE=0) (exit from extended command set) command(0x08); // Display ON/OFF control: display off, cursor off, blink off (default values) command(0x2A); // Function set: extended command set (RE=1), CGRAM blink disable, normal display (def. val.) command(0x79); // OLED characterization: OLED command set enabled (SD=1) command(0xD5); // Set display clock divide ratio/oscillator frequency: command(0x70); // divide ratio=1, frequency=7 (default values) command(0x78); // OLED characterization: OLED command set disabled (SD=0) (exit from OLED command set) command(0x09); // Extended function set (RE=1): 5-dot font, B/W inverting disabled (def. val.), 3/4 lines // 0x08 for 2 lines ? command(0x06); // Entry Mode set - COM/SEG direction: COM0->COM31, SEG99->SEG0 (BDC=1, BDS=0) command(0x72); // Function selection B: data(0x0A); // ROM/CGRAM selection: ROM C, CGROM=250, CGRAM=6 (ROM=10, OPR=10) command(0x2A); // Function set: extended command set (RE=1), CGRAM blink disable, normal display (def. val.) command(0x79); // OLED characterization: OLED command set enabled (SD=1) command(0xDA); // Set SEG pins hardware configuration: command(0x10); // alternative odd/even SEG pin, disable SEG left/right remap (default values) command(0xDC); // Function selection C: command(0x00); // internal VSL, GPIO input disable command(0x81); // Set contrast control: command(0x7F); // contrast=127 (default value) command(0xD9); // Set phase length: command(0xF1); // phase2=15, phase1=1 (default: 0x78) command(0xDB); // set VCOMH deselect level: command(0x40); // VCOMH deselect level=1 x Vcc (default: 0x20=0,77 x Vcc) command(0x78); // OLED characterization: OLED command set disabled (SD=0) (exit from OLED command set) command(0x28); // Function set: fundamental command set (RE=0) (exit from extended command set) command(0x01); // Clear display delay(5); // Waits 5 ms (after a clear display, a minimum pause of 1-2 ms is required) command(0x80); // Set DDRAM address 0x00 in address counter (cursor home) (default value) command(0x0C); // Display ON/OFF control: display ON, cursor off, blink off delay(300); // Waits 300 ms for stabilization purpose after display on } // _______________________________________________________________________________________ void loop(void) // MAIN PROGRAM { output(); // Execute subroutine "output" delay(2000); // Waits 2 sec (only for visual effect purpose) blocks(); // Execute subroutine "blocks" delay(2000); // Waits 2 sec (only for visual effect purpose) } ``` Windows crash messages: ![screenshot1](https://cloud.githubusercontent.com/assets/11994305/7203517/833c8a60-e51b-11e4-8cb8-d874d7a481be.png) ![screenshot2](https://cloud.githubusercontent.com/assets/11994305/7203518/834268fe-e51b-11e4-9e01-1250e08c4ac7.png) ![screenshot3](https://cloud.githubusercontent.com/assets/11994305/7203516/8335b258-e51b-11e4-89eb-7eab1a0adbbc.png)

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