Messages

1

preenfm2 and preenfm3 / Re: Problem starting PreenFM2

« on: June 18, 2018, 11:04:38 AM »

Now I don't know what I'm talking about obviously, but: Would it make sense to have the screen say "Reading USB..." instead of just blocks at that point, so that it is obvious that the problem is USB related?

2

preenfm2 and preenfm3 / Re: Problem starting PreenFM2

« on: June 18, 2018, 12:45:17 AM »

....I cannot boot normally, I just get the full blocks in the OLED. I have a self-made preen405....

The full blocks in the display are displayed by the firmwre.
It freeze here if the firmware cannot access the USB drive.
2 possiblities : you didn't t have the expected "/pfm2/" folder or your USB stick is not readable by the preenfm2.

Xavier

Great! I've been reflowing the STM32F405 chip all night. Sight, at least is seems I didn't break it, cause I still have the blocks!

But great, my stick is 256MB, an old fellow! Ill try a couple others to see if that fixes the issue! Thanks!

3

preenfm2 and preenfm3 / Re: Problem starting PreenFM2

« on: June 16, 2018, 11:43:47 PM »

I got it up and running after I removed and reseated the Preenf405 chip.  For some reason, it was showing the bootloader showing that it was connected but it would not boot until I reseated and soldered the chip in place. 

I do have an issue with the screen display.  Between lines two and line three there are lines above the characters.  Is this normal or do I possibly have a bad screen/ connection with the screen?

I'm having the exact issue you describe, I can get the bootloader running and boot into the bootloader mode, but I cannot boot normally, I just get the full blocks in the OLED. I have a self-made preen405.

I removed the preen405 and put it back in, but it did not help. Did you say that you soldered in place in stead of using the socket?