Flashing Permanent Design to MX

Alwil 2020-06-08 19:52:50 UTC #1

Hi. I'm trying to flash my design to the BImx so that it will load when I power it up. I've tried using the mode button put it in flash mode (turning the yellow led on) and uploading with cat from terminal.

In this thread by @Aclassifier, https://forum.mystorm.uk/t/icecore-getting--really--started-on-macos/752/8,
@Folknology said this is the way to do it. But this does not work for me. If I take it out of flash mode I can run my design but can't flash it. What should I try?

I'm on mac. Apio upload is not working for me right now...

Thanks!

Folknology 2020-06-09 11:29:59 UTC #2

So when you try flashing it what actually happens?

Alwil 2020-06-09 16:16:51 UTC #3

When I try flashing nothing happens. Terminal just hangs until I unplug the MX.

Folknology 2020-06-09 22:19:47 UTC #4

This is strange, I have not heard of this happening before. Is there a Mac owner (with similar config to @Alwil) who could also try (or has already tried) this as I cannot test this locally?

Alwil 2020-06-10 09:59:48 UTC #5

These are my steps:

non permanent:
- plug in usb
- cat test.bin >/dev/cu.usbmodem00000000001A1
- success.
-unplug

flash upload / permanent:
- plug in usb
- press mode button (yellow led turns on)
- cat test.bin >/dev/cu.usbmodem00000000001A1
- terminal hangs.
- unplug

I've also tried keeping my finger pressed on the mode button while I upload, and this is slightly different.
- plug in usb
- press mode button (yellow led turns on) and keep it pressed
- cat test.bin >/dev/cu.usbmodem00000000001A1
- terminal process completes
- but design is not running on MX
- unplug

BigEd 2020-06-10 14:37:20 UTC #6

From a slightly different configuration, in the past I've found a need to set the TTY properties before the cat:

(stty raw -echo; cat) </dev/ttyACM0 &
cp chip.bin /dev/ttyACM0

That leaves a background process reading from the port.

Alwil 2020-06-11 15:22:18 UTC #7

Hi BigEd, thanks.

I just tried this but it seems to not work either. I get similar results:

non permanent:
- (stty raw -echo; cat) </dev/cu.usbmodem00000000001A1
- plug in usb
- cat test.bin >/dev/cu.usbmodem00000000001A1
- success (design is uploaded correctly)
- (but) error in terminal:
-"cp: test.bin: could not copy extended attributes to /dev/cu.usbmodem00000000001A1: Operation not permitted"
-unplug

and:

flash upload / permanent:
- (stty raw -echo; cat) </dev/cu.usbmodem00000000001A1
- plug in usb
- press mode button (yellow led turns on)
- cp test.bin /dev/cu.usbmodem00000000001A1
- terminal hangs.
- unplug
- terminal error: "cp: /dev/cu.usbmodem00000000001A1: Device not configured
cp: test.bin: could not copy extended attributes to /dev/cu.usbmodem00000000001A1: Operation not permitted"

BigEd 2020-06-11 15:36:19 UTC #8

Hmm, I think I'd do the stty stage immediately before the copy, and both of them after you see the yellow LED on.

You might also try 'cp -X' to avoid the attempt to copy attributes.