How do I do a DSI Read?

[john doe]

Posted on April 19, 2017 at 03:53

All of the examples in the Cube only write.  There is no example code for a DSI Read. And I'm obviously not understanding something because the commands in the hal driver dont jive with the data sheet for the otm8009a on the discovery f769 board, and yet I can draw to the screen.

I would really like to read the registers, though.  Anyone got working example of HAL_DSI_Read?

[Uwe Bonnes]

Posted on April 19, 2017 at 10:36

The STM32 implement DSI host, with data flow from CPU to display. Not the other way.

[Nesrine M_O]

Posted on April 19, 2017 at 10:38

Hi doe.john.016,

Please refer to AN4860, it provides a description of DSI interface with examples on how to configure it.

-Nesrine-