6621F如何支持串口波特率为2400

配置如下：

if(2400 == DEBUG_UART_BAUDRATE)

{

        uint16_t baud_divisor = 4;

         cpm_set_clock(CPM_UART1_CLK,baud_divisor*DEBUG_UART_BAUDRATE*16);

         /* Baud rate setting.*/

         HS_UART1->LCR = UART_LCR_DLAB;

         HS_UART1->DLL = baud_divisor & 0xff;

         HS_UART1->DLH = (baud_divisor >> 8) & 0xff;

         /* 8 data, 1 stop, no parity */

         HS_UART1->LCR = UART_LCR_8N1;

}