Wrong pinout on the photo of bluepill?

dirtyjtag / DirtyJTAG

JTAG probe firmware

MIT License

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Closed KnorkFox closed 9 months ago

KnorkFox commented 9 months ago

Hi, i have seen, that you used ports A1 to A7 for the jtag signals. On the table nearby is written, Pa0 to Pa5.

I have used the release 2.0 image. dirtyjtag.bluepill.noloader.bin

What is wrong, the table, or the photo, or am i just confused?

jeanthom commented 9 months ago

Hi,

Thanks for pointing this confusing documentation page. The source of truth is the jtag.c file: https://github.com/dirtyjtag/DirtyJTAG/blob/master/src/jtag.c#L79-L99

Therefore the image is correct (it actually uses PA2-PA7) but the table isn't. I'll fix this in a minute.

Jean

KnorkFox commented 9 months ago

Thanks a lot! Now it is clear to me.

I want to flash memory chips with flashrom. Since dirtyjtag is now supported by flashrom V 1.3

Bluepill SPI

Pin 2 = # WP Pin 3 = # CS Pin 4 = # Hold Pin 5 = CLK Pin 6 = MISO Pin 7 = MOSI gnd = ground