PDC of DBGU doesn't stop transmitting then buffer is empty

Hi I use AT91SAM7X. I have function which configures USART with PDC (115200, 1 stop, no parity, normal mode, 8-bit data) and everytging works fine. When I use it to configure DBGU it doesn't transmit...
PDC of DBGU doesn't stop transmitting then buffer is empty

Hi I use AT91SAM7X. I have function which configures USART with PDC (115200, 1 stop, no parity, normal mode, 8-bit data) and everytging works fine. When I use it to configure DBGU it doesn't transmit...
Trying to acquire input from keyboard on ASC1

Hello. I want to get key from keyboard not using the default Serial #1 but using Serial #2 that i suppose is connected with ASC1. So i configure the port 3, the direction pin, and alternate operation...
Trying to acquire input from keyboard on ASC1

Hello. I want to get key from keyboard not using the default Serial #1 but using Serial #2 that i suppose is connected with ASC1. So i configure the port 3, the direction pin, and alternate operation...
STM32 UART DMA can receive first time correct then it receive nothing

0 I'm trying to use dma with uart in stm32f746 nucleo in receiving mode i can receive correct data in first use when i try to receive again receiving buffer doesn't change its initial values...