Hi all
MCU: TM4C1294NCPDT
TI-RTOS: v2.01.00.36
NDK: v2.23.01.01
CCS: v6.0.1.0040
SYS/BIOS 6.4..02.27 GA Release Note
When the program is running, I would like to modify uart configuration parameters (baud rate, data bits, stop bits, parity), another task I whether use this function （UARTConfigSetExpClk (UART0_BASE, 120000000, uart_bate, (UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE |UART_CONFIG_PAR_EVEN)） to achieve this function .
/*
* ======== uartecho.c ========
*/
/* XDCtools Header files */
#include <xdc/std.h>
#include <xdc/cfg/global.h>
#include <xdc/runtime/System.h>
/* BIOS Header files */
#include <ti/sysbios/BIOS.h>
/* TI-RTOS Header files */
#include <ti/drivers/GPIO.h>
#include <ti/drivers/UART.h>
/* Example/Board Header files */
#include "Board.h"
#include <stdint.h>
/*
* ======== echoFxn ========
* Task for this function is created statically. See the project's .cfg file.
*/
Void echoFxn(UArg arg0, UArg arg1)
{
char input;
UART_Handle uart;
UART_Params uartParams;
const char echoPrompt[] = "\fEchoing characters:\r\n";
/* Create a UART with data processing off. */
UART_Params_init(&uartParams);
uartParams.writeDataMode = UART_DATA_BINARY;
uartParams.readDataMode = UART_DATA_BINARY;
uartParams.readReturnMode = UART_RETURN_FULL;
uartParams.readEcho = UART_ECHO_OFF;
uartParams.baudRate = 9600;
uartParams.dataLength = UART_LEN_8;
uartParams.stopBits = UART_STOP_ONE;
uartParams.parityType = UART_PAR_NONE;
uart = UART_open(Board_UART0, &uartParams);
if (uart == NULL) {
System_abort("Error opening the UART");
}
UART_write(uart, echoPrompt, sizeof(echoPrompt));
/* Loop forever echoing */
while (1) {
UART_read(uart, &input, 1);
UART_write(uart, &input, 1);
}
}
Void changeFxn(UArg arg0, UArg arg1)
{
UARTConfigSetExpClk (UART0_BASE, 120000000, uart_bate, (UART_CONFIG_WLEN_8 | UART_CONFIG_STOP_ONE |UART_CONFIG_PAR_EVEN));
}
/*
* ======== main ========
*/
int main(void)
{
/* Call board init functions */
Board_initGeneral();
Board_initGPIO();
Board_initUART();
/* Turn on user LED */
GPIO_write(Board_LED0, Board_LED_ON);
/* This example has logging and many other debug capabilities enabled */
System_printf("This example does not attempt to minimize code or data ""footprint\n");
System_flush();
System_printf("Starting the UART Echo example\nSystem provider is set to ""SysMin. Halt the target to view any SysMin contents in ""ROV.\n");
/* SysMin will only print to the console when you call flush or exit */
System_flush();
/* Start BIOS */
BIOS_start();
return (0);
}
