stm32loader.py fails with a .bin compiled on my machine

I've cloned the Espruino repository with the intention of contributing to the JavaScript implementation (in as far as I can wrap my head around C). I've got an Espruino board, so I'm running make with ESPRUINO_1V3=1.

I am on commit e4677650181132e9f883df9fbfeb4d4d3d60d3e9­ when I'm doing all this. My machine is running Ubuntu 12.04 and I've installed all the compiler bits as far as I'm aware. (gcc, arm-none-eabi-gcc, and another one which name escapes me right now.)

My full make command:

ESPRUINO_1V3=1 BOARDNAME=1 make

I haven't exported any other env variables prior to running make.

Make exits with these last few lines, and an exit code of 0 (I think):

LD espruino_1v54_espruino_1r3.elf
GEN espruino_1v54_espruino_1r3.lst
GEN espruino_1v54_espruino_1r3.bin
bash scripts/check_size.sh espruino_1v54_espruino_1r3.bin
PASS - size of 214252 is under 215040 bytes 

Here's a full dump of make's output.

Then, I'm running the loader:

BOOT0=1 BOOT1=0 python scripts/stm32loader.py -k -p /dev/ttyACM0 -evw espruino_1v54_espruino_1r3.bin

Which outputs:

Reading data from espruino_1v54_espruino_1r3.bin
Traceback (most recent call last):
  File "scripts/stm32loader.py", line 525, in <module>
    bootversion = cmd.cmdGet()
  File "scripts/stm32loader.py", line 140, in cmdGet
    if self.cmdGeneric(0x00):
  File "scripts/stm32loader.py", line 137, in cmdGeneric
    return self._wait_for_ack(hex(cmd))
  File "scripts/stm32loader.py", line 101, in _wait_for_ack
    raise CmdException("Unrecognised response 0x%x to %s" % (ask, info))
__main__.CmdException: Unrecognised response 0x72 to 0x0

Is there something wrong with the build, or the problem purely in loading it onto the board? I'd appreciate any pointers.

Looks like your board isn't in bootloader mode? Hold down BTN1 and then press and release RST - the blue LED should start glowing and then you can flash it.

BUT you actually need to write to a different address (0x08002800 - because of the bootloader).

It's best just to run:

ESPRUINO_1V3=1 make serialflash

And that will automatically call the correct command.

Amazing, after all that troubleshooting to get make working, I failed to realize I should probably set the board to bootloader mode. That command worked great @Gordon, thanks much!

I'm getting all the more excited about the Espruino project and its potential after seeing your dedication to it. I didn't quite expect a forum reply that late at night. :)

No problem :) I just happened to see the post when I went to turn the PC off - always glad to help, especially if you're planning on contributing back ;)