20 lines
375 B
C
20 lines
375 B
C
#ifndef _usart1_H
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#define _usart1_H
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#include "system.h"
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#include "stdio.h"
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#define RX_485 GPIO_ResetBits(GPIOA,GPIO_Pin_8);
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#define TX_485 GPIO_SetBits(GPIOA,GPIO_Pin_8);
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extern float error;
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extern u8 USART_RX_BUF[64];
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//接收到的数据长度
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extern unsigned short USART_RX_STA; //接收状态标志
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void usart1_Init(u32 bound);
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#endif
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