Declaration of variables

KalleL · August 30, 2016, 11:24am

I have copied a scetch for the ESP8266 from the Internet , compiled and used it . OK everything is fine . But when I want to develop it on my own , the compilation fails when simply changing the variable "int x" to "long x;" , and the compilator returns the message

"collect2.exe: error: ld returned 5 exit status .

exit status 1
Error compiling for board Arduino/Genuino Uno."

Cannot see any wrong in that ...

TomGeorge · August 30, 2016, 11:28am

Hi,

Can you please post a copy of your sketch, using code tags?

What Arduino board.
What version IDE?
What OS are you running?

Thanks..... Tom....

UKHeliBob · August 30, 2016, 11:29am

Cannot see any wrong in that ...

and we can't see any code so please post it so that we can see exactly what you have done.

Is that the complete error message ? If not then please post that too.

johnwasser · August 30, 2016, 11:31am

KalleL:
"collect2.exe: error: ld returned 5 exit status .

exit status 1
Error compiling for board Arduino/Genuino Uno."

Let me guess. You are using Windows XP?

OldSteve · August 30, 2016, 1:12pm

johnwasser:
Let me guess. You are using Windows XP?

That was my guess too, when I saw that particular error message.

@KalleL , if you are using a Windows XP machine, take a look here:- many cases of ld.exe crashes. (on windows xp)
(The fix that involves using an early version of "ld.exe" from IDE V1.0.6 works fine, or at least it did for me when I was still using WinXP.)

KalleL · August 31, 2016, 8:57pm

Thanks OldSteve

This tip did the trick :)!

I am effectly using an old PC with Windows XP , but it has worked fine for
a long time and with scores f applications . But now I downloaded the IDE 1.6.11
and then the problems started ... This version though when installing checks the
prsence of older IDE:s and then erases it/them ... so , fortunately I had another
PC with 1.6.8 installed ... copied that LD.exe and ,...Yuipee!!!

But I must admit I am surprised the Arduino software people have let through a
bug like that ...

johnwasser · September 1, 2016, 1:10pm

KalleL:
But I must admit I am surprised the Arduino software people have let through a
bug like that ...

Really? Even Microsoft has not supported Windows XP for more than two years:
"After 12 years, support for Windows XP ended April 8, 2014"

Why should Arduino spend time and money testing and supporting the IDE on an unsupported OS? If you want Windows XP support you could always try the last released version from before Windows XP was put out to pasture: ARDUINO 1.0.5-r2 (2014.01.08). If you don't mind running beta-test software you could use ARDUINO 1.5.6 BETA (2014.02.20).
Also, the change is in the linker which is not something Arduino develops. They just occasionally include the latest version in a release to get the benefit of bug fixes and new features.

septillion · September 1, 2016, 1:48pm

Agree with John, the time of XP is over. You don't expect a DOS program from 1994 to work out of the box, do you?

KalleL:
fortunately I had another PC with 1.6.8 installed

Nothing really fortunate about it. You can just download every version of the IDE you like straight from arduino.cc

rpt007 · September 1, 2016, 2:18pm

You don't expect a DOS program from 1994 to work out of the box, do you?

Why not? If not feasible, I would vote for a Commodore 64 version

CrossRoads · September 1, 2016, 2:30pm

Every try running some older games on a new PC? Some of them run really fast! As the hardware is much faster now and the inherent delays of the old hardware that made the game playable are no longer there.

septillion · September 1, 2016, 4:13pm

rpt007:
Why not? If not feasible, I would vote for a Commodore 64 version

Although it might run it would be foolish to assume it does. Same goes for Win XP now.

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 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-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)

OldSteve · September 1, 2016, 8:50pm

pert:
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's not easy to point them in the right direction. It's sooo hard to pin down. It struck me out of the blue when I was still using XP, for no apparent reason. And look at all the weird and wonderful fixes that have worked for different people.

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

I can understand this. A great many people still use XP. Not everyone can afford a newer OS, and often even if they could, that also means a new(er) PC to support it. I stuck with XP for that reason - my old machine couldn't run a newer OS, except maybe Vista, and that wasn't an option for me. I would almost have preferred going without. (A Win7 compatibility check gave me a 'thumbs-down'.)

PaulMurrayCbr · September 2, 2016, 4:32am

Yup - XP is simply not supported anymore, and that's how it is. Why not get a Mac?

sterretje · September 2, 2016, 5:52am

CrossRoads:
Every try running some older games on a new PC? Some of them run really fast! As the hardware is much faster now and the inherent delays of the old hardware that made the game playable are no longer there.

You can always underclock your PC It was a lot easier 25 years ago; just press the turbo button to clock down to 4.77 MHz (or so).

septillion · September 6, 2016, 9:02am

OldSteve:
my old machine couldn't run a newer OS, except maybe Vista

That's a bit of a weird statement. Windows Vista was pretty bloated, Windows 7 runs wayyyyyy lighter. And those Win compatibility checks are not worth much. They always tell "Computer says noooooo" if the PC is more then 2 year old. But if a PC was fine running Win XP it's fine running Win 7 as well. Only really weird hardware like Creative Sound Blasters are not always working fine.

AS for me, I run Windows 10 just fine on a machine that came out together with Vista

OldSteve · September 6, 2016, 11:38am

septillion:
That's a bit of a weird statement. Windows Vista was pretty bloated, Windows 7 runs wayyyyyy lighter. And those Win compatibility checks are not worth much. They always tell "Computer says noooooo" if the PC is more then 2 year old. But if a PC was fine running Win XP it's fine running Win 7 as well. Only really weird hardware like Creative Sound Blasters are not always working fine.

AS for me, I run Windows 10 just fine on a machine that came out together with Vista

I mentioned only the compatibility check to be brief.
I wasn't aware that those compatibility checks should just be ignored, and didn't want to upset the apple cart just to find out that it was right. But also, I have a very old printer that I still like to use, but can't get drivers to suit Win7 and later. There might have been other issues, too. I can't remember. That was some time ago now.
There are also software issues with later versions of the OS. I have some pretty old stuff that works fine on XP, but not on later versions. I didn't go into full detail in my reply in this thread because it wasn't relevant.
And I'm surprised that you feel that this is important enough to dredge up.

septillion · September 6, 2016, 12:54pm

Hehe, sorry Just found it kind of funny enough to reply

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