PreenFM > preenfm2 and preenfm3

[fixed in 0.95 ?] preenfm3 sd card error

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lokki:
sorry, i only looked at the 0.91 release, and it didn't contain the sdcard zip file...found it in the 0.90 folder.

Xavier:

You're right the SD wiki part is still missing. Sorry.
Yes the zip is attached in the v0.90 release :
https://github.com/Ixox/preenfm3/releases

lokki:
hmm, the screen still stays black even with the folder on the sdcard...

will try a different sdcard. or maybe the reader is really broken on the screen

lokki:
and another sdcard does not fix this...

but, the blue led on the main pcb blinks, even when the screen stays black, maybe that tells you something?

can i just attach another microsd card modul with SPI and 3.3v logic?

Xavier:

--- Quote from: lokki on October 19, 2020, 08:32:25 PM ---but, the blue led on the main pcb blinks, even when the screen stays black, maybe that tells you something?

--- End quote ---

Interesting, it means the pfm3 firmware is correctly running but the TFT is not.
I don't understand how puting a SD card can prevent the TFT to run...

Is the TFT totally black (no led at all), or black (with backlight) ?
There's a way to reinit TFT, can you try :
. v0.90 : holding the MENU 2 or 3 seconds
. V0.91: Hold down MENU (7) + press previous instrument (8 ) (see buttons number here)
What is the result ?


--- Quote from: lokki on October 19, 2020, 08:32:25 PM ---can i just attach another microsd card modul with SPI and 3.3v logic?

--- End quote ---

Yes, it should work if you follow the SPI pins.
But i'm still not sure your SD card does not work.

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