&& echo OK does not work after -c urclock

[mcuee]

Reference:

• Provide Urclock programmer #1171 (comment)

It is strange that && echo OK does not work after -c urclock. No pronlems with -c arduino.

It is the same under Linux.

mcuee@UbuntuSwift3:~/build/avr/avrdude_bin$ ./avrdude -c arduino -P /dev/ttyUSB0 -p m328p
 -U ./Blink.ino.standard.hex -qq && echo OK
OK

mcuee@UbuntuSwift3:~/build/avr/avrdude_bin$ ./avrdude -c urclock -P /dev/ttyUSB0 -p m328p
 -U ./Blink.ino.standard.hex -xbootsize=512 -qq && echo OK

mcuee@UbuntuSwift3:~/build/avr/avrdude_bin$ 

[stefanrueger]

-c arduino pretends chip erase works (but does nothing), so no error is being shown.

-c urclock correctly assumes the non-native bootloader won't have CE, so delayes CE to be dealt with by filling the remaining space with 0xff on the next -U flash upload, but marks the shell exitrc value provisionally as 1 (error, no echo OK) as at this point it does not know whether there will be a correct -U flash upload later

The bug is that this then never reset to 0 on successful -U to flash.

Will repair

[mcuee]

@stefanrueger
Thanks for the detailed explanation why the issue happened. I can confirm PR #1194 fixed the issue.