Add new comment

I followed the instructions for building from source (though I changed the stepper driver types to TMC2208_STANDALONE for my v1.1.5 board), and the flashing process looked successful:

Advanced Memory Usage is available via "PlatformIO Home > Project Inspect"
DATA:    [===       ]  29.3% (used 4806 bytes from 16384 bytes)
PROGRAM: [==========]  99.8% (used 129744 bytes from 130048 bytes)
Configuring upload protocol...
AVAILABLE: arduino
CURRENT: upload_protocol = arduino
Looking for upload port...
Auto-detected: COM3
Uploading .pio\build\sanguino_atmega1284p\firmware.hex

avrdude: AVR device initialized and ready to accept instructions

Reading | ################################################## | 100% 0.00s

avrdude: Device signature = 0x1e9705 (probably m1284p)
avrdude: reading input file ".pio\build\sanguino_atmega1284p\firmware.hex"
avrdude: writing flash (129744 bytes):

Writing | ################################################## | 100% 16.13s

avrdude: 129744 bytes of flash written
avrdude: verifying flash memory against .pio\build\sanguino_atmega1284p\firmware.hex:
avrdude: load data flash data from input file .pio\build\sanguino_atmega1284p\firmware.hex:
avrdude: input file .pio\build\sanguino_atmega1284p\firmware.hex contains 129744 bytes
avrdude: reading on-chip flash data:

Reading | ################################################## | 100% 13.28s

avrdude: verifying ...
avrdude: 129744 bytes of flash verified

avrdude: safemode: Fuses OK (E:00, H:00, L:00)

avrdude done.  Thank you.

============================ [SUCCESS] Took 847.70 seconds ============================

However, I now get a blank screen on reboot, and my next attempt at flashing the board results in:

Advanced Memory Usage is available via "PlatformIO Home > Project Inspect"
DATA:    [===       ]  29.3% (used 4806 bytes from 16384 bytes)
PROGRAM: [==========]  99.8% (used 129744 bytes from 130048 bytes)
Configuring upload protocol...
AVAILABLE: arduino
CURRENT: upload_protocol = arduino
Looking for upload port...
Auto-detected: COM3
Uploading .pio\build\sanguino_atmega1284p\firmware.hex
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x66
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x66
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x66
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x66
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x66
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x66
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x66
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x66
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x66
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x66

avrdude done.  Thank you.

*** [upload] Error 1
============================= [FAILED] Took 195.99 seconds =============================
 

This is my first attempt at upgrading the firmware on my ender 3 pro, so please accept my apologies if I've just done something dumb

The content of this field is kept private and will not be shown publicly.