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#include "SWM221.h"
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void SerialInit(void);
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int main(void)
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{
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SystemInit();
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SerialInit();
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printf("Hello World from USART0!\r\n");
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while(1==1)
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{
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while(!USART_INTStat(USART0, USART_IT_RX_RDY)) __NOP();
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USART_Write(USART0, USART_Read(USART0));
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}
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}
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void SerialInit(void)
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{
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USART_InitStructure USART_initStruct;
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PORT_Init(PORTA, PIN2, PORTA_PIN2_USART0_TX, 0);
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PORT_Init(PORTA, PIN3, PORTA_PIN3_USART0_RX, 1);
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USART_initStruct.Baudrate = 57600;
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USART_initStruct.DataBits = USART_DATA_8BIT;
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USART_initStruct.Parity = USART_PARITY_NONE;
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USART_initStruct.StopBits = USART_STOP_1BIT;
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USART_initStruct.RXReadyIEn = 0;
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USART_initStruct.TXReadyIEn = 0;
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USART_initStruct.TimeoutIEn = 0;
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USART_Init(USART0, &USART_initStruct);
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USART_Open(USART0);
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}
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/******************************************************************************************************************************************
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* <EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: fputc()
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* <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>
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* <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>: int ch Ҫ<EFBFBD><EFBFBD>ӡ<EFBFBD><EFBFBD><EFBFBD>ַ<EFBFBD>
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* FILE *f <EFBFBD>ļ<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
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* <EFBFBD><EFBFBD> <EFBFBD><EFBFBD>: <EFBFBD><EFBFBD>
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* ע<EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>: <EFBFBD><EFBFBD>
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******************************************************************************************************************************************/
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int fputc(int ch, FILE *f)
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{
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USART_Write(USART0, ch);
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while(!USART_INTStat(USART0, USART_IT_TX_EMPTY)) __NOP();
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return ch;
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}
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