10 lines
197 B
C
10 lines
197 B
C
#include "usart.h"
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int fputc(int ch,FILE *f)
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{
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//采用轮询方式发送1字节数据，超时时间设置为无限等待
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HAL_UART_Transmit(&huart2,(uint8_t *)&ch,1,HAL_MAX_DELAY);
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return ch;
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}
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