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#ifndef __USART_H__
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#define __USART_H__
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//#include "main.h"
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#include "stdint.h"
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//#define BAUDRATE_19200
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#define EU_485_PIN GPIO_PIN_7
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#define EU_485_GPIO GPIOB
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#define OUT485_ENABLE GPIO_WriteBit(EU_485_GPIO, EU_485_PIN, Bit_SET);
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#define OUT485_DISABLE GPIO_WriteBit(EU_485_GPIO, EU_485_PIN, Bit_RESET);
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//#define UART_GPIO_REMAP_ENABLE
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#ifdef UART_GPIO_REMAP_ENABLE
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#define UART_GPIO_REMAP GPIO_Remap_USART1
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#define EU_RCC_GPIO RCC_APB2Periph_GPIOB
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#define EU_TX_PIN GPIO_Pin_6
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#define EU_RX_PIN GPIO_Pin_7
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#define EU_RX_GPIO GPIOB
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#define EU_TX_GPIO GPIOB
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#else
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#define EU_RCC_GPIO RCC_APB2Periph_GPIOA
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#define EU_TX_PIN GPIO_PIN9
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#define EU_RX_PIN GPIO_PIN_10
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#define EU_RX_GPIO GPIOA
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#define EU_TX_GPIO GPIOA
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#endif
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#ifdef BAUDRATE_19200
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#define EXUART_BAUD_RADE 19200
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#else
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#define EXUART_BAUD_RADE 115200
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#endif
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#define EUART_RX_DMA_CH DMA1_Channel3
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#define EUART_TX_DMA_CH DMA1_Channel2
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#define EUART_TX_FRM_SIZE 2 //·¢ËͶÓÁÐÖеÄ×î´óÖ¡Êý
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#define EUART_TX_FRMBUF_SIZE 100 //·¢ËͶÓÁÐÿ֡»º´æ´óС
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#define EUART_RX_BUF_SIZE 1024 //½ÓÊÕ»º´æ´óС
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#define EXT_UART USART1
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#define EXT_UART_RCC RCC_APB2Periph_USART1
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typedef struct _EUART_Frame { //Êý¾Ý·¢ËÍÖ¡¶ÓÁнṹÌå
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int32_t len; //Ö¡³¤¶È
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uint8_t buf[EUART_TX_FRMBUF_SIZE]; //Ö¡Êý¾Ý
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} EUART_Frame;
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void Uart1_Init(void);
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void UART_CheckReceive(void);
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void UART_CheckSend(void);
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void UART_PushFrame(uint8_t* pdata, int32_t data_len);
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void UART_PopFrame(void);
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extern void (*Usart1ParseDataCallback)(uint8_t);
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#define USART_TX_BUF_SIZE 50 //·¢ËÍ»º´æ´óС
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#define USART_RX_BUF_SIZE 100 //½ÓÊÕ»º´æ´óС
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extern uint8_t m_EUART_DMA_RXBuf[EUART_RX_BUF_SIZE];
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extern uint8_t USART_DMA_RXBuf[USART_RX_BUF_SIZE]; //USART2 DMAÊý¾Ý½ÓÊÕ»º´æ
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//void Uart2_SendString( uint8_t *str);
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//extern void Uart2_SendString( uint8_t *str);
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//void Uart2_SendStr_length( uint8_t *str,uint32_t strlen );
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//extern void Uart2_SendStr_length( uint8_t *str,uint32_t strlen );
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#endif
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