Run-time UART Buadrate change

First make sure all data currently being transmitted is completed i.e checking status of TXE and TC

You can then disable the USART, change the BRR, and then reenable the USART

Thanks for your reply !!! @Community member​ .

Can you give me one sample code for that?

I tested it and give me the status zero.

MX_UART4_Init_9600(); // baudrate 9600

G3_Baudrate_set(); // send cmd to other chip

uint8_t status = LL_USART_IsActiveFlag_TC(&huart4);

printf("stauts = %x\r\n",status);

HAL_UART_DeInit(&huart4); //uart de-init

MX_UART4_Init_921600(); //set the baud rate 921600

Still UART initialization failed.

Can somebody help on this? How UART baudrate changed at run-time?.

What's this "G3_Baudrate_set(); // send cmd to other chip"?

Are you trying to ghange the other end baudrate AFTER you change your end's?

It just a command for baudrate change request to the other connected chip with UART .

My requirement is to set baudrate 9600 -> 912600 -> 115200.