How to use Raspberry Pi Touch Display with STM32F769i-DISCO using B-LCDAD-RPI1?

[Jakub Wegrzyn]

I'm trying to connect 7" Raspberry Pi Touch Display to STM32F769i-DISCO using B_LCDAD_RPI1 adapter. Unfortunately had no luck so far. The adapter lacks any documentation but the name suggests that it was designed for such case. Is there any driver to enable support for such setup? Or maybe some sample application that I could use as starting point?

So far I was able to power up the display using I2C but DSI init sequence ported from Linux driver did not work. Any help would be appreciated.

[Tesla DeLorean]

I think you're seriously misjudging the amount of engineering hours a $14 board buys you.

It's just an adapter to the RPi's 15-pin FPC, and the assortment of DSI/I2C connected panels that might afford you.

Most of the donkey work to bring up the display controller at the far end is up to you. The LTDC/DSI on the STM32 side shouldn't be too bad, the other side, the RPi is rather scant on actual detail. The challenge with the 7" display as I recall was having it turn on.

The number of people willing to do the heavy lift to get others projects into orbit, is unsurprisingly, rather low.

[ozan_ozdemir]

I think you are also misunderstanding..

Are you saying that ST too isn't too willing to do the heavy lifting to get their clients projects into orbit?

[Tesla DeLorean]

Does look to be on several of the WaveShare boards

https://bbs.aw-ol.com/assets/uploads/files/1628522626092-icn6211_mipi_rgb_specification_v04.pdf

How does the RPi bring it up? All I see are sync and porch timings.

[Tesla DeLorean]

https://github.com/6by9/linux/tree/rpi-5.15.y-ili9806e/drivers/gpu/drm/panel