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115 lines
2.9 KiB
115 lines
2.9 KiB
#ifndef __BSP_SPI_SOFT_H
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#define __BSP_SPI_SOFT_H
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#include "stm32f4xx_hal.h"
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#include "main.h"
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// #include "sys.h"
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// #define SCL_GPIO_PORT GPIOB
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// #define SCL_PIN GPIO_PIN_6
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// #define SDA_GPIO_PORT GPIOB
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// #define SDA_PIN GPIO_PIN_7
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typedef enum {
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SPI_OK = 0x00, //IIC工作正常
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SPI_WAIT_ACK_ERR = 0x01, //slave设备返回ACK错误
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SPI_WRITE_ERR = 0x02, //向slave设备写入错误
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SPI_READ_ERR = 0x04 //从slave设备读取错误
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} SPI_STATUS;
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typedef struct
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{
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GPIO_TypeDef *sclk_port;
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uint16_t sclk_pin;
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GPIO_TypeDef *mosi_port;
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uint16_t mosi_pin;
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GPIO_TypeDef *miso_port;
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uint16_t miso_pin;
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GPIO_TypeDef *cs_port;
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uint16_t cs_pin;
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uint8_t sda_pin_num; //定义延时，以适应不同器件对速率的不同要求,具体值要在调试中确定
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uint8_t addr; //器件地址
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uint32_t delaytick; //定义延时，以适应不同器件对速率的不同要求,具体值要在调试中确定
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}SPI_SOFT_TypeDef;
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#define CS_H HAL_GPIO_WritePin(GPIOC, GPIO_PIN_5, GPIO_PIN_SET)
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#define CS_L HAL_GPIO_WritePin(GPIOC, GPIO_PIN_5, GPIO_PIN_RESET)
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#define SCLK_H HAL_GPIO_WritePin(GPIOC, GPIO_PIN_4, GPIO_PIN_SET)
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#define SCLK_L HAL_GPIO_WritePin(GPIOC, GPIO_PIN_4, GPIO_PIN_RESET)
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#define SDI_H HAL_GPIO_WritePin(GPIOC, GPIO_PIN_1, GPIO_PIN_SET)
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#define SDI_L HAL_GPIO_WritePin(GPIOC, GPIO_PIN_1, GPIO_PIN_RESET)
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#define SDO_R HAL_GPIO_ReadPin(GPIOC, GPIO_PIN_1)
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#define SUCCESS 0
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#define FAILURE 1
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void SPI_Init(const SPI_SOFT_TypeDef *pSoftSPI);
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uint8_t WriteReg(uint32_t d);
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uint8_t ReadReg(uint32_t d);
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#endif
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/*
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时序
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// * @brief: I2C 开始,SCL为高电平的时候SDA产生一个下降沿信号
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// _____
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// *SDA \_____________
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// * __________
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// *SCL \________
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//
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// * @brief: I2C 停止,SCL为高电平的时候SDA产生一个上升沿信号
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// _______
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// *SDA __________/
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// * ____________
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// *SCL _____/
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// * @brief: I2C 响应
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// ____
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// *SCL ______/ \______
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// * ____ _____
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// *SDA \_______/
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//
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// * @brief: I2C 不响应
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// ____
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// *SCL ______/ \______
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// * __________________
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// *SDA
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//
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HAL_I2C_MspDeInit( &hi2c1 );
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uint8_t readout[256] = {0};
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uint8_t writein[1] = {0xFB};
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// SPI_Init( );
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// SPI_Write_Test( 0xA0, 0, writein, 1 );
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// HAL_Delay( 200 );
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// SPI_Read_Test( 0xA0, 0, readout, 1 );
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// log_i("iic test %02X .... ", *readout);
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SPI_SOFT_TypeDef sIIC = {
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GPIOB, GPIO_PIN_6, GPIOB, GPIO_PIN_7,
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7,0xA0,1,
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};
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SPI_Init( &sIIC );
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SPI_Write_Test( &sIIC,0xA0, 0, writein, 1 );
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HAL_Delay( 200 );
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SPI_Read_Test(&sIIC, 0xA0, 0, readout, 1 );
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log_i("iic test %02X .... ", *readout);
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*/ |