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143 lines
4.0 KiB
143 lines
4.0 KiB
#ifndef __BSP_UART_H
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#define __BSP_UART_H
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#include "stm32f4xx.h"
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/**
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* 封装不同使用类型串口 232 485 max3160
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* 包含发送回调的GPIO操作
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* 其他回调外部处理
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*/
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/* 485 3160 启用一个， 两个接口都有 MAX3160_ENABLE */
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#define MAX485_ENABLE 0
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#define MAX3160_ENABLE 1
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#ifdef __cplusplus
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extern "C" {
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#endif
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#include <stdlib.h>
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#include "main.h"
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// #if MAX3160_ENABLE
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// #define DUPLEX_HALF 1
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// #define DUPLEX_FULL 0
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// #define SEL_485 1
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// #define SEL_232 0
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// #define ENABLE_485_Trans 1
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// #define DISABLE_485_Trans 0
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// # endif
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// #if MAX485_ENABLE
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// #define ENABLE_485_Trans 1
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// #define DISABLE_485_Trans 0
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// # endif
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/* ----------------------- variables ---------------------------------*/
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extern UART_HandleTypeDef huart3;
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UART_HandleTypeDef *pMyUart = &huart3;
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typedef void ( *enable_func) (void);
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typedef int ( *callback_fun) (void *obj, void *buf, uint16_t size);
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typedef struct
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{
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UART_HandleTypeDef *huart;
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uint8_t interface_type; /* 0: common, 1: 485 ,2:3160*/
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uint8_t enable_idle_it;
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// #if MAX485_ENABLE
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// GPIO_TypeDef *de485_gpio;
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// uint16_t de485_pin;
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// uint8_t de485;
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// #endif
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// #if MAX3160_ENABLE
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// GPIO_TypeDef *de485_gpio;
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// uint16_t de485_pin;
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// GPIO_TypeDef *sel_gpio;
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// GPIO_TypeDef *dplx_gpio;
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// uint16_t sel_pin;
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// uint16_t dplx_pin;
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// uint8_t sel;
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// uint8_t dplx;
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// #endif
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// uint8_t dplx;
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// uint8_t sel;
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// uint8_t de485;
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uint8_t trans_mode; /* 0 :polling, 1: IT 2: DMA*/
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// uint8_t *send_buf;
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// uint16_t size_send;
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// uint8_t *rcv_buf;
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// uint16_t size_rcv;
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volatile uint8_t send_flag;
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volatile uint8_t send_tc_flag; /* 0 开始发送， 1 发送完成*/
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// uint32_t timebase;
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void (*enable_snd)(void);
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void (*enable_rcv)(void);
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void * obj;
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callback_fun callback;
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// 这个是供外部调用的； 中断是统一管理的， 中断会找到这里的接收回调，然后返回回去
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}MYUART_TypeDef;
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extern MYUART_TypeDef *myuart;
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MYUART_TypeDef * Myuart_Init( );
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void Myuart_Set_Huart(MYUART_TypeDef * myuart, UART_HandleTypeDef *huart);
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int Myuart_Setup_Transmod( MYUART_TypeDef * myuart, uint8_t trans_mode );
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int Myuart_Set_enable_snd_func( MYUART_TypeDef * myuart, enable_func enable_snd_func );
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int Myuart_Set_enable_rcv_func( MYUART_TypeDef * myuart, enable_func enable_rcv_func);
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int Myuart_Set_enable_idle( MYUART_TypeDef * myuart, uint8_t enable_idle);
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int Myuart_Set_Callback( MYUART_TypeDef * myuart, void *obj, callback_fun func);
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// void Myuart_Set_Sel_GPIO_Pin(MYUART_TypeDef * myuart, GPIO_TypeDef *gpio, uint16_t pin);
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// void Myuart_Set_Dplx_GPIO_Pin(MYUART_TypeDef * myuart, GPIO_TypeDef *gpio, uint16_t pin);
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// void Myuart_Set_DE485_GPIO_Pin(MYUART_TypeDef * myuart, GPIO_TypeDef *gpio, uint16_t pin);
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// void Myuart_Set_232(MYUART_TypeDef * myuart);
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// void Myuart_Set_485(MYUART_TypeDef * myuart);
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int Myuart_Trans(MYUART_TypeDef * myuart, uint8_t *buf, uint16_t size);
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// int __Myuart_Trans(MYUART_TypeDef * myuart , uint8_t *buf, uint16_t size);
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int Myuart_Trans_TxCplt_Callback( MYUART_TypeDef * myuart );
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/* 接收方式 也有三种类型 */
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int Myuart_Start_Rcv(MYUART_TypeDef * myuart, uint8_t *buf, uint16_t size);
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#endif
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/*
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485
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enable rcv
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HAL_GPIO_WritePin(myuart->de485_gpio, myuart->de485_pin, 0);
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enable send
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HAL_GPIO_WritePin(myuart->de485_gpio, myuart->de485_pin, 1);
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3160 485 --高 (232 - 低)
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enable rcv
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HAL_GPIO_WritePin(myuart->dplx_gpio, myuart->dplx_gpio , 1);
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HAL_GPIO_WritePin(myuart->de485_gpio, myuart->de485_pin, 0);
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enable send
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HAL_GPIO_WritePin(myuart->dplx_gpio, myuart->dplx_gpio , 0);
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HAL_GPIO_WritePin(myuart->de485_gpio, myuart->de485_pin, 1);
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myuart = Myuart_Init();
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Myuart_Set_Huart( myuart, phuart),
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Myuart_Setup_Transmod( myuart, 2 );
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Myuart_Set_enable_snd_func( myuart, NULL );
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Myuart_Set_enable_rcv_func( myuart, NULL);
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Myuart_Set_enable_idle( myuart, enable_idle);
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Myuart_Set_enable_rcv_func( myuart, obj, (callback_fun) func);
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*/ |