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193 lines
6.7 KiB
193 lines
6.7 KiB
#ifndef __BSP_I2C_H
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#define __BSP_I2C_H
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#include "stm32f4xx.h"
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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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#include "stm32f4xx.h"
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#include "i2c.h"
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typedef enum
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{
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I2C_Trans_Polling = 0x00U,
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I2C_Trans_IT = 0x01U,
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I2C_Trans_DMA = 0x02U,
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} I2C_Transmode_TypeDef;
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/* ----------------------- variables ---------------------------------*/
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// extern UART_HandleTypeDef huart3;
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// UART_HandleTypeDef *pi2chelper = &huart3;
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typedef int ( *i2c_callback_fun) (void *obj, void *buf, uint16_t size);
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typedef struct
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{
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I2C_HandleTypeDef *hi2c;
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volatile uint8_t flag_busy;
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volatile uint8_t flag_send_or_rcv;
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uint8_t dev_addr;
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uint16_t mem_addr_size; // I2C_MEMADD_SIZE_8BIT I2C_MEMADD_SIZE_16BIT
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uint16_t write_delay_ms;
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// uint8_t mem_addr[2];
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uint16_t mem_addr ;
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// trans buf size, mem 方法不含地址
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uint32_t size;
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uint8_t *buf;
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I2C_Transmode_TypeDef trans_mode; /* 0 :polling, 1: IT 2: DMA*/
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I2C_Transmode_TypeDef rcv_mode;
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// volatile uint8_t transferring;
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// uint32_t timebase;
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// enable_func_gpio enable_trans_gpio;
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// enable_func_gpio enable_trans_cplt_gpio;
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void * obj;
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i2c_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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}I2C_HELPER_TypeDef;
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// extern I2C_HELPER_TypeDef *i2chelper;
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I2C_HELPER_TypeDef * I2C_HELPER_Init( );
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void I2C_HELPER_Set_Hi2c(I2C_HELPER_TypeDef * i2chelper, I2C_HandleTypeDef *hi2c);
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void I2C_HELPER_Set_dev_addr(I2C_HELPER_TypeDef * i2chelper, uint8_t dev_addr);
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void I2C_HELPER_Set_mem_addr_size(I2C_HELPER_TypeDef * i2chelper, uint16_t mem_addr_size);
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void I2C_HELPER_Set_mem_addr(I2C_HELPER_TypeDef * i2chelper, uint16_t mem_addr);
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int I2C_HELPER_Setup_Trans_mode( I2C_HELPER_TypeDef * i2chelper, uint8_t trans_mode );
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int I2C_HELPER_Setup_Rcv_mode( I2C_HELPER_TypeDef * i2chelper, uint8_t rcv_mode );
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int I2C_HELPER_Set_Callback( I2C_HELPER_TypeDef * i2chelper, void *obj, i2c_callback_fun func);
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//Trans
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int I2C_HELPER_Trans(I2C_HELPER_TypeDef * i2chelper, uint8_t *buf, uint16_t size);
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// int __I2C_HELPER_Trans(I2C_HELPER_TypeDef * i2chelper , uint8_t *buf, uint16_t size);
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int I2C_HELPER_Trans_TxCplt_Callback( I2C_HELPER_TypeDef * i2chelper );
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/* 接收方式 也有三种类型 */
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int I2C_HELPER_Start_Rcv(I2C_HELPER_TypeDef * i2chelper, uint8_t *buf, uint16_t size);
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int I2C_HELPER_RCV_Cplt_Callback( I2C_HELPER_TypeDef * i2chelper );
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int I2C_HELPER_RCV_IDLE_Callback( I2C_HELPER_TypeDef * i2chelper, uint16_t size );
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int I2C_HELPER_read_bytes(I2C_HELPER_TypeDef * i2chelper,uint8_t dev_addr,uint8_t *buf,uint32_t size);
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int I2C_HELPER_write_bytes(I2C_HELPER_TypeDef * i2chelper,uint8_t dev_addr,uint8_t *buf,uint32_t size);
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int I2C_HELPER_read_memory(I2C_HELPER_TypeDef * i2chelper,uint8_t dev_addr,uint16_t mem_addr,uint8_t mem_addr_size,uint8_t *buf,uint32_t size);
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int I2C_HELPER_write_memory(I2C_HELPER_TypeDef * i2chelper,uint8_t dev_addr,uint16_t mem_addr,uint8_t mem_addr_size,uint8_t *buf,uint32_t size);
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// struct i2c_buff
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// {
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// volatile uint8_t flag_busy;
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// volatile uint8_t flag_send_or_rcve;
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// uint8_t memory_addr_size;
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// uint8_t dev_addr;
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// I2C_TypeDef *i2c;
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// DMA_Stream_TypeDef *dma_rx_stream;
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// DMA_Stream_TypeDef *dma_tx_stream;
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// uint32_t size;
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// uint8_t *buf;
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// uint8_t mem_addr[2];
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// };
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// int i2c_init(struct i2c_buff *i2c_buf,I2C_TypeDef *i2c,DMA_Stream_TypeDef *dma_rx_stream,DMA_Stream_TypeDef *dma_tx_stream);
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// int i2c_read_memory(struct i2c_buff *i2c_buf,uint8_t dev_addr,uint16_t mem_addr,uint8_t mem_addr_size,uint8_t *buf,uint32_t size);
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// int i2c_write_memory(struct i2c_buff *i2c_buf,uint8_t dev_addr,uint16_t mem_addr,uint8_t mem_addr_size,uint8_t *buf,uint32_t size);
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// void i2c_dma_tx_it_tc_callback(struct i2c_buff *i2c_buf);
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// void i2c_dma_rx_it_tc_callback(struct i2c_buff *i2c_buf);
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// int i2c_clear_state(struct i2c_buff *i2c_buf);
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// int i2c_get_state(struct i2c_buff *i2c_buf);
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// void i2c_it_af_callback(struct i2c_buff *i2c_buf);
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// void i2c_it_btf_callback(struct i2c_buff *i2c_buf);
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// void i2c_it_addr_callback(struct i2c_buff *i2c_buf);
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// void i2c_it_sb_callback(struct i2c_buff *i2c_buf);
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// int i2c_read_bytes(struct i2c_buff *i2c_buf,uint8_t dev_addr,uint8_t *buf,uint32_t size);
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// int i2c_write_bytes(struct i2c_buff *i2c_buf,uint8_t dev_addr,uint8_t *buf,uint32_t size);
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// void i2c_stop(struct i2c_buff *i2c_buf);
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// // int I2C_HELPER_Set_Interface_Type(I2C_HELPER_TypeDef * i2chelper, uint8_t interface_type);
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// int I2C_HELPER_Setup_Trans_mode( I2C_HELPER_TypeDef * i2chelper, uint8_t trans_mode );
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// int I2C_HELPER_Setup_Rcv_mode( I2C_HELPER_TypeDef * i2chelper, uint8_t rcv_mode );
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// int I2C_HELPER_Set_trans_GPIO( I2C_HELPER_TypeDef * i2chelper, enable_func_gpio trans_gpio_func );
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// int I2C_HELPER_Set_trans_cplt_GPIO( I2C_HELPER_TypeDef * i2chelper, enable_func_gpio trans_cplt_gpio_func );
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// int I2C_HELPER_Set_enable_idle( I2C_HELPER_TypeDef * i2chelper, uint8_t enable_idle);
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// int I2C_HELPER_Set_Rcv_Buf( I2C_HELPER_TypeDef * i2chelper, uint8_t * buf, uint16_t size);
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// int I2C_HELPER_Set_Trans_Buf( I2C_HELPER_TypeDef * i2chelper, uint8_t * buf, uint16_t size);
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#endif
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/*
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HAL 原型函数
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// st = HAL_I2C_Mem_Write(ads1115_i2c_helper->hi2c, ADS1115_WRITE_ADDRESS,
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// my_ads1115.reg_data[0],ads1115_i2c_helper->mem_addr_size , reg_data,2,0xFFFF);
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// st = HAL_I2C_Mem_Read(ads1115_i2c_helper->hi2c, ADS1115_WRITE_ADDRESS,
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// 0x00,ads1115_i2c_helper->mem_addr_size , rx_data,2,0xFFFF);
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485
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enable rcv
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HAL_GPIO_WritePin(i2chelper->de485_gpio, i2chelper->de485_pin, 0);
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enable send
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HAL_GPIO_WritePin(i2chelper->de485_gpio, i2chelper->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(i2chelper->dplx_gpio, i2chelper->dplx_gpio , 1);
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HAL_GPIO_WritePin(i2chelper->de485_gpio, i2chelper->de485_pin, 0);
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enable send
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HAL_GPIO_WritePin(i2chelper->dplx_gpio, i2chelper->dplx_gpio , 0);
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HAL_GPIO_WritePin(i2chelper->de485_gpio, i2chelper->de485_pin, 1);
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i2chelper = I2C_HELPER_Init();
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I2C_HELPER_Set_Huart( i2chelper, phuart),
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I2C_HELPER_Setup_Transmod( i2chelper, 2 );
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I2C_HELPER_Set_enable_snd_func( i2chelper, NULL );
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I2C_HELPER_Set_enable_rcv_func( i2chelper, NULL);
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I2C_HELPER_Set_enable_idle( i2chelper, enable_idle);
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I2C_HELPER_Set_enable_rcv_func( i2chelper, obj, (callback_fun) func);
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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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*/ |