Good afternoon,
I have successfully installed the Seeeduino .json support package into a Windows-10 Eclipse 2019-06 CDT environment and this has compiled and linked my project files cleanly into a .bin file, ready for download to my LoRaWAN board on COM4.
Problem: The ‘bossac’ download command terminates reporting an error “Unsupported Cortex-M3 architecture”. This is weird because the processor is SAMD21, which should identify as Cortex-M0.
Question: Is 1.6.1-arduino the correct version of bossac for this board? If not, could you please advise how I can proceed?
Details: The full command is
</s>.../.arduinocdt/packages/Seeeduino/tools/bossac/1.6.1-arduino/bossac.exe -i -d --port=COM4 -U true -i -e -w -v ./DemoNode.bin -R<e>
Console trace shows…
</s>Set binary mode
readWord(addr=0)=0x2064654c
readWord(addr=0xe000ed00)=0x6e727574
readWord(addr=0x400e0740)=0x6f206465
version()=ff!
chipId=0x6f206465
Unsupported Cortex-M3 architecture
Send auto-baud
Set binary mode
readWord(addr=0)=0x2064654c
readWord(addr=0xe000ed00)=0x6e727574
readWord(addr=0x400e0740)=0x6f206465
version()=ff!
chipId=0x6f206465
Unsupported Cortex-M3 architecture
No device found on COM4<e>
Many thanks, Dave.