#ifndef __BSP_I2C_H #define __BSP_I2C_H #include "stm32f4xx.h" #ifdef __cplusplus extern "C" { #endif #include #include "main.h" #include "stm32f4xx.h" #include "i2c.h" typedef enum { I2C_Trans_Polling = 0x00U, I2C_Trans_IT = 0x01U, I2C_Trans_DMA = 0x02U, } I2C_Transmode_TypeDef; /* ----------------------- variables ---------------------------------*/ // extern UART_HandleTypeDef huart3; // UART_HandleTypeDef *pi2chelper = &huart3; typedef int ( *i2c_callback_fun) (void *obj, void *buf, uint16_t size); typedef struct { I2C_HandleTypeDef *hi2c; volatile uint8_t flag_busy; volatile uint8_t flag_send_or_rcv; uint8_t dev_addr; uint16_t mem_addr_size; // I2C_MEMADD_SIZE_8BIT I2C_MEMADD_SIZE_16BIT uint16_t write_delay_ms; // uint8_t mem_addr[2]; uint16_t mem_addr ; // trans buf size, mem 方法不含地址 uint32_t size; uint8_t *buf; I2C_Transmode_TypeDef trans_mode; /* 0 :polling, 1: IT 2: DMA*/ I2C_Transmode_TypeDef rcv_mode; // volatile uint8_t transferring; // uint32_t timebase; // enable_func_gpio enable_trans_gpio; // enable_func_gpio enable_trans_cplt_gpio; void * obj; i2c_callback_fun callback; // 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 }I2C_HELPER_TypeDef; // extern I2C_HELPER_TypeDef *i2chelper; I2C_HELPER_TypeDef * I2C_HELPER_Init( ); void I2C_HELPER_Set_Hi2c(I2C_HELPER_TypeDef * i2chelper, I2C_HandleTypeDef *hi2c); void I2C_HELPER_Set_dev_addr(I2C_HELPER_TypeDef * i2chelper, uint8_t dev_addr); void I2C_HELPER_Set_mem_addr_size(I2C_HELPER_TypeDef * i2chelper, uint16_t mem_addr_size); void I2C_HELPER_Set_mem_addr(I2C_HELPER_TypeDef * i2chelper, uint16_t mem_addr); int I2C_HELPER_Setup_Trans_mode( I2C_HELPER_TypeDef * i2chelper, uint8_t trans_mode ); int I2C_HELPER_Setup_Rcv_mode( I2C_HELPER_TypeDef * i2chelper, uint8_t rcv_mode ); int I2C_HELPER_Set_Callback( I2C_HELPER_TypeDef * i2chelper, void *obj, i2c_callback_fun func); //Trans int I2C_HELPER_Trans(I2C_HELPER_TypeDef * i2chelper, uint8_t *buf, uint16_t size); // int __I2C_HELPER_Trans(I2C_HELPER_TypeDef * i2chelper , uint8_t *buf, uint16_t size); int I2C_HELPER_Trans_TxCplt_Callback( I2C_HELPER_TypeDef * i2chelper ); /* 接收方式 也有三种类型 */ int I2C_HELPER_Start_Rcv(I2C_HELPER_TypeDef * i2chelper, uint8_t *buf, uint16_t size); int I2C_HELPER_RCV_Cplt_Callback( I2C_HELPER_TypeDef * i2chelper ); int I2C_HELPER_RCV_IDLE_Callback( I2C_HELPER_TypeDef * i2chelper, uint16_t size ); int I2C_HELPER_read_bytes(I2C_HELPER_TypeDef * i2chelper,uint8_t dev_addr,uint8_t *buf,uint32_t size); int I2C_HELPER_write_bytes(I2C_HELPER_TypeDef * i2chelper,uint8_t dev_addr,uint8_t *buf,uint32_t size); 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); 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); // struct i2c_buff // { // volatile uint8_t flag_busy; // volatile uint8_t flag_send_or_rcve; // uint8_t memory_addr_size; // uint8_t dev_addr; // I2C_TypeDef *i2c; // DMA_Stream_TypeDef *dma_rx_stream; // DMA_Stream_TypeDef *dma_tx_stream; // uint32_t size; // uint8_t *buf; // uint8_t mem_addr[2]; // }; // int i2c_init(struct i2c_buff *i2c_buf,I2C_TypeDef *i2c,DMA_Stream_TypeDef *dma_rx_stream,DMA_Stream_TypeDef *dma_tx_stream); // 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); // 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); // void i2c_dma_tx_it_tc_callback(struct i2c_buff *i2c_buf); // void i2c_dma_rx_it_tc_callback(struct i2c_buff *i2c_buf); // int i2c_clear_state(struct i2c_buff *i2c_buf); // int i2c_get_state(struct i2c_buff *i2c_buf); // void i2c_it_af_callback(struct i2c_buff *i2c_buf); // void i2c_it_btf_callback(struct i2c_buff *i2c_buf); // void i2c_it_addr_callback(struct i2c_buff *i2c_buf); // void i2c_it_sb_callback(struct i2c_buff *i2c_buf); // int i2c_read_bytes(struct i2c_buff *i2c_buf,uint8_t dev_addr,uint8_t *buf,uint32_t size); // int i2c_write_bytes(struct i2c_buff *i2c_buf,uint8_t dev_addr,uint8_t *buf,uint32_t size); // void i2c_stop(struct i2c_buff *i2c_buf); // // int I2C_HELPER_Set_Interface_Type(I2C_HELPER_TypeDef * i2chelper, uint8_t interface_type); // int I2C_HELPER_Setup_Trans_mode( I2C_HELPER_TypeDef * i2chelper, uint8_t trans_mode ); // int I2C_HELPER_Setup_Rcv_mode( I2C_HELPER_TypeDef * i2chelper, uint8_t rcv_mode ); // int I2C_HELPER_Set_trans_GPIO( I2C_HELPER_TypeDef * i2chelper, enable_func_gpio trans_gpio_func ); // int I2C_HELPER_Set_trans_cplt_GPIO( I2C_HELPER_TypeDef * i2chelper, enable_func_gpio trans_cplt_gpio_func ); // int I2C_HELPER_Set_enable_idle( I2C_HELPER_TypeDef * i2chelper, uint8_t enable_idle); // int I2C_HELPER_Set_Rcv_Buf( I2C_HELPER_TypeDef * i2chelper, uint8_t * buf, uint16_t size); // int I2C_HELPER_Set_Trans_Buf( I2C_HELPER_TypeDef * i2chelper, uint8_t * buf, uint16_t size); #endif /* HAL 原型函数 // st = HAL_I2C_Mem_Write(ads1115_i2c_helper->hi2c, ADS1115_WRITE_ADDRESS, // my_ads1115.reg_data[0],ads1115_i2c_helper->mem_addr_size , reg_data,2,0xFFFF); // st = HAL_I2C_Mem_Read(ads1115_i2c_helper->hi2c, ADS1115_WRITE_ADDRESS, // 0x00,ads1115_i2c_helper->mem_addr_size , rx_data,2,0xFFFF); 485 enable rcv HAL_GPIO_WritePin(i2chelper->de485_gpio, i2chelper->de485_pin, 0); enable send HAL_GPIO_WritePin(i2chelper->de485_gpio, i2chelper->de485_pin, 1); 3160 485 --高 (232 - 低) enable rcv HAL_GPIO_WritePin(i2chelper->dplx_gpio, i2chelper->dplx_gpio , 1); HAL_GPIO_WritePin(i2chelper->de485_gpio, i2chelper->de485_pin, 0); enable send HAL_GPIO_WritePin(i2chelper->dplx_gpio, i2chelper->dplx_gpio , 0); HAL_GPIO_WritePin(i2chelper->de485_gpio, i2chelper->de485_pin, 1); i2chelper = I2C_HELPER_Init(); I2C_HELPER_Set_Huart( i2chelper, phuart), I2C_HELPER_Setup_Transmod( i2chelper, 2 ); I2C_HELPER_Set_enable_snd_func( i2chelper, NULL ); I2C_HELPER_Set_enable_rcv_func( i2chelper, NULL); I2C_HELPER_Set_enable_idle( i2chelper, enable_idle); I2C_HELPER_Set_enable_rcv_func( i2chelper, obj, (callback_fun) func); // #if MAX3160_ENABLE // #define DUPLEX_HALF 1 // #define DUPLEX_FULL 0 // #define SEL_485 1 // #define SEL_232 0 // #define ENABLE_485_Trans 1 // #define DISABLE_485_Trans 0 // # endif // #if MAX485_ENABLE // #define ENABLE_485_Trans 1 // #define DISABLE_485_Trans 0 // # endif */