Hi CB1, may the DMA of the TIVA TM4C1294 has a limit to transfer 1024 items in one request, as I have found that out by using DMA with QSPI-Flash on the same MCU. Otherwise the DMA is delivering biased data to the destination memory if the transfer item limit is more than 1024. The Display has an own problem with the physical connection via flex cable. At high frequencies the clock signal gets jitter, so with a short delay between 16 bit blocks the clock can resynchrone or in more detail: the jitter is not big enough at the 16 bit boundary. Thank you for your help and stay helpfully...
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