KurtE
Senior Member+
The main issue about porting ili9341_t3 is not that there is not a FIFO, but that the fifo does not include information about the desired state of up to 4 Chip select pins, which we use to encode both the CS, but more importantly the DC state. Without this, you typically have to wait until the queue is empty, before changing the state of these pins, which adds in delays.
Without this, not sure how much higher performance you will get then using SPI library support, especially if we get the DMA support into the library.
Without this, not sure how much higher performance you will get then using SPI library support, especially if we get the DMA support into the library.