I have an H755 nucleo board and a riverdi 5'' rgb display.
After
- setting the ltdc ,
- the clock to 25mhz
- the freertos
- not using qspi and sdram just by using the 2 layer start address 0x20000000 and 0x20119400 for RGB888
- I have enabling the nvic
- I have crosscheck the riverdi example for the ltdc setup and the polarities and everything is the same.
- I have checked the +VLED and -VLED from the led driver it provides 12V and the rest of the system is on 3.3V.
- I have opened the touchgfx and set only one red box as background.
- I have set a blinking function to CM4 and to CM7 to be sure that all are working. Technically on CM7 the program runs i and inside the touchgfx freertos task it just opens the red led for some seconds and closes it again. After this it calls the touchgfx_process functions as it should.
The screen does not open. If i am not using qspi and sdram do i need to write something on how to send the data to the display pins? do i need to control something?
here is a link to the project (zipped):Example Project
Based on this image what should have been the proper framebuffer Starting address for the board?
official documentation Riverdi product page
analysing the pins i see:
