Second, by default the controller send data with the MSB first , and I could not succeed in changing to sending the LSB first, so I have to inverse the bits myself .


Today I finally saw how I failed to set data mode to LSB, here is updated code with normal values for commands.

setup, I use ...

Hello, I guess the original poster has moved on, but trying to do it since yesterday and just having succeeded now, I believe that it is usefull to post here.

First, I did not use existing libraries that do bit banging, but I used standard i2c driver . With pull-up resistors of 270 ohms, I could ...

Yes, it works with casting. Thank you.

Hello,

I am trying to write a Kconfig menu to be able to choose the GPIO pin for a given use.

But it seems that I can only choose an integer value, e.g. :


config PIN_STATUS_MAIN
int "Main LED GPIO number"
range 0 34
default 23
help
GPIO number (IOxx) for the 'Main status' LED.


And then ...