MCU_SWM221/UART/AutoBaud/APP/main.c

#include "SWM221.h"

void SerialInit(void);

int main(void)
{
	uint32_t res, i;
	UART_InitStructure UART_initStruct;
	
	SystemInit();
	
	SerialInit();
	
	PORT_Init(PORTA, PIN4, PORTA_PIN4_UART1_TX, 0);	//GPIOA.4<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ΪUART0 TXD
	PORT_Init(PORTA, PIN5, PORTA_PIN5_UART1_RX, 1);	//GPIOA.5<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ΪUART0 RXD
	
	UART_initStruct.Baudrate = 9600;
	UART_initStruct.DataBits = UART_DATA_8BIT;
	UART_initStruct.Parity = UART_PARITY_NONE;
	UART_initStruct.StopBits = UART_STOP_1BIT;
	UART_initStruct.RXThreshold = 3;
	UART_initStruct.RXThresholdIEn = 0;
	UART_initStruct.TXThreshold = 3;
	UART_initStruct.TXThresholdIEn = 0;
	UART_initStruct.TimeoutTime = 10;
	UART_initStruct.TimeoutIEn = 0;
 	UART_Init(UART1, &UART_initStruct);
	UART_Open(UART1);
   	
	/* <20><><EFBFBD><EFBFBD>˵<EFBFBD><CBB5>
	*  <EFBFBD><EFBFBD>UART0_TX<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ӵ<EFBFBD>UART1_RX<EFBFBD><EFBFBD>UART0<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>57600<EFBFBD><EFBFBD>UART1<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>9600
	*  <EFBFBD><EFBFBD>UART0<EFBFBD><EFBFBD><EFBFBD><EFBFBD>0xF8<EFBFBD><EFBFBD>UART1ͨ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>0xF8<EFBFBD>Զ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʽ<EFBFBD><EFBFBD>Լ<EFBFBD><EFBFBD>IJ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϊ57600
	****************************************************************************/
	while(1==1)
	{		
		UART_ABRStart(UART1, 0xF8);
		
		while((res = UART_ABRIsDone(UART1)) == 0)
		{
			UART_WriteByte(UART0, 0xF8);
			while(UART_IsTXBusy(UART0));
		}
		
		if(res == UART_ABR_RES_OK) printf("AutoBaud OK\r\n");
		else                       printf("AutoBaud Error\r\n");
		
		printf("UART0 Baud Reg: %d\r\n", UART_GetBaudrate(UART0));
		printf("UART1 Baud Reg: %d\r\n", UART_GetBaudrate(UART1));
		
		for(i = 0; i < 1000000; i++);
	}
}

void SerialInit(void)
{
	UART_InitStructure UART_initStruct;
	
	PORT_Init(PORTA, PIN0, PORTA_PIN0_UART0_RX, 1);	//GPIOA.0<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ΪUART0 RXD
	PORT_Init(PORTA, PIN1, PORTA_PIN1_UART0_TX, 0);	//GPIOA.1<EFBFBD><EFBFBD><EFBFBD><EFBFBD>ΪUART0 TXD
 	
 	UART_initStruct.Baudrate = 57600;
	UART_initStruct.DataBits = UART_DATA_8BIT;
	UART_initStruct.Parity = UART_PARITY_NONE;
	UART_initStruct.StopBits = UART_STOP_1BIT;
	UART_initStruct.RXThreshold = 3;
	UART_initStruct.RXThresholdIEn = 0;
	UART_initStruct.TXThreshold = 3;
	UART_initStruct.TXThresholdIEn = 0;
	UART_initStruct.TimeoutTime = 10;
	UART_initStruct.TimeoutIEn = 0;
 	UART_Init(UART0, &UART_initStruct);
	UART_Open(UART0);
}

/****************************************************************************************************************************************** 
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: fputc()
* <EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD><EFBFBD>: printf()ʹ<EFBFBD>ô˺<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ʵ<EFBFBD>ʵĴ<EFBFBD><EFBFBD>ڴ<EFBFBD>ӡ<EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* <EFBFBD><EFBFBD>    <EFBFBD><EFBFBD>: int ch		Ҫ<EFBFBD><EFBFBD>ӡ<EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>
*			FILE *f		<EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
* <EFBFBD><EFBFBD>    <EFBFBD><EFBFBD>: <EFBFBD><EFBFBD>
* ע<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: <EFBFBD><EFBFBD>
******************************************************************************************************************************************/
int fputc(int ch, FILE *f)
{
	UART_WriteByte(UART0, ch);
	
	while(UART_IsTXBusy(UART0));
 	
	return ch;
}