STM32407 and SSD1963

[King John]

Hello,

I've got an SSD1963 working using standard GPIO on an STM32F407 w/ Chibios. I'm using a generic Chinese 7" 800x480 TFT. In my board file, I've had to add a few __NOP's in for each time I use write_data to deal, otherwise the display will be completely mangled or not draw at all. As you can imagine, this makes drawing operations quite slow and flickery, especially if I'm updating significant portions of the screen. Would using FSMC assist with this issue? It seems that I might be going faster than the SSD1963 can keep up with. Apologies if this is a repetitive question!

Thanks an advance!

Edited May 17, 2018 by King John

[Joel Bodenmann]

You will definitely get a lot better performance when using FSMC. We strongly recommend that you do so.
It's quite "common" that the FSMC can go faster than the slave (the display controller in this case). For this, the FSMC has plenty of timing registers to make sure that everything stays within the interface specs you can review in the display controller's datasheet.