DSI Video Mode Sample for STM32F7 with TouchGFX

[mibra.1]

Hi ST Team, Current we using an TFT LCD Drv (ST7701) without GRAM. So we have to use DSI in video mode. But it's hard to understand the required DSI video mode configurations. So we need Dsi video mode code working sample.

After Surfing the Stm32 Application notes, we found the following Doc;

1. dm00287601-dsi-host-on-stm32f469-479-stm32f7x8-x9-and-stm32l4r9-s9-mcus-stmicroelectronics
2. en.STM32F7_Peripheral_DSIHOST

But it didn't help much. So the DSi sample code will a lot.

[Tesla DeLorean]

Aren't there examples related to the STM32F769I-DISCO ?​

[mibra.1]

unfortunately, No.

There is samples for TFT Lcd Drv with Gram. So they are using Command mode.

[Tesla DeLorean]

I'm pretty sure that it is using the LTDC/DSI to pump data real time, at pixel clock frequencies

[MM..1]

I test one demo project 469 simply convert from command mode to video mode . When i rememmber open ioc and change mode setup. Regenerate code and try .

[mibra.1]

Thanks for your help, I wanted to ask if there is sample for dsi video mode with TouchGFX?

[mibra.1]

Hi every one, there is an update, now the lcd is working but the image on the screen is flickering. so. is that timing error?

[Tesla DeLorean]

Certainly a lot of interrelationships between various LTDC and DSI clocks, and the screen geometry and colour depth, etc​

[Tesla DeLorean]

Watch also that your memory subsystem has enough bandwidth for your resolution and frame rate.

Large resolution and deep colour depth, going to want 32-bit wide SDRAM, clocking optimally.​