I have change the baseline from L4.1.15 to L4.14.98. then faced a new problem. that the uart(5) rx/tx is not stable. pls see:
I keep typing in char '2', but the seems the some bytes is wrong.
I have read this topic:
so there is two question:
1: How to change the default configuration of UART, DMA or interrupt.
2: How to increase rx/tx recieve buf size?