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:
