I have a problem with my 8x8 click module, I tried everything with my Stm32 F4.. and I cant get it work. Can someone PLEASE help me?

SSimi.1 · ‎2022-01-19

Peter BENSCH · ‎2022-01-25

OK, this is done with a bit-shift operation, which you can of course also insert directly as a parameter.

So, if you want to move bit7 (MSB) 7 bit positions to bit0 to transfer it to the GPIO, as in your example, you should use in line 86:

HAL_GPIO_WritePin(GPIOB, GPIO_PIN_5, (byte&0x80) >>7);

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SSimi.1 · ‎2022-01-25

Thank you!

I already solve my problem last night, the module had a problem with the SHUTDOWN - Mode

Peter BENSCH · ‎2022-01-25

Great!

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/Peter

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