Test inquiry to write and read data to stm32f469i_Discovery External RAM?

[PKunK.1]

TouchGFX is used for stm32f469i_Discovery.

I want to test External RAM because I can't express the picture well on the LCD screen.

I want to write 0xAF from 0xC0000000 to 0xCFFFFFFFF, and test if I read 0xAF when I read the same bungee, and I need advice on how to set up the program.

[Alexandre RENOUX]

Hello PKunk.1,

I recommend you have a look at the example codes available in the STM32Cube F4 Firmware package (C:\Users\username\STM32Cube\Repository\STM32Cube_FW_F4_V1.26.0\Projects\STM32469I-Discovery).

To test you can comment the TouchGFX related functions in the main() function and perform some READ and WRITE after the RAM initialization is successful.

/Alexandre

[MKris.5]

Hi  @Alexandre RENOUX​  ,

Can you please share me the ILI9806E code for initializing the ILI9806E module.

I can't change the LCD orientation . Currently set it as 480p width and 800p height. i wanna change it to 800 width and 480 height.

Thanks,

meimurgan