85 lines
3.0 KiB
C
85 lines
3.0 KiB
C
#ifndef __I2C_EE_H
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#define __I2C_EE_H
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#include "stm32h7xx.h"
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/* AT24C01/02每页有8个字节 */
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//#define EEPROM_PAGESIZE 8
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#define EEPROM_PAGESIZE 8
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/* AT24C04/08A/16A每页有16个字节 */
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//#define EEPROM_PAGESIZE 16
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#define EEPROM_I2C_FORCE_RESET() __HAL_RCC_I2C4_FORCE_RESET()
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#define EEPROM_I2C_RELEASE_RESET() __HAL_RCC_I2C4_RELEASE_RESET()
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/* I2C interrupt requests */
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#define EEPROM_I2C_EV_IRQn I2C4_EV_IRQn
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#define EEPROM_I2C_ER_IRQn I2C4_ER_IRQn
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#define EEPROM_I2C_EV_IRQHandler I2C4_EV_IRQHandler
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#define EEPROM_I2C_ER_IRQHandler I2C4_ER_IRQHandler
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/* 这个地址只要与STM32外挂的I2C器件地址不一样即可 */
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#define I2C_OWN_ADDRESS7 0X0A
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/*I2C接口*/
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#define EEPROM_I2C I2C4
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#define EEPROM_I2C_CLK_ENABLE() __HAL_RCC_I2C4_CLK_ENABLE()
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//#define RCC_PERIPHCLK_I2Cx RCC_PERIPHCLK_I2C4
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#define EEPROM_I2C_SCL_PIN GPIO_PIN_8
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#define EEPROM_I2C_SCL_GPIO_PORT GPIOB
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#define EEPROM_I2C_SCL_GPIO_CLK_ENABLE() __GPIOB_CLK_ENABLE()
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#define EEPROM_I2C_SCL_AF GPIO_AF6_I2C4
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#define EEPROM_I2C_SDA_PIN GPIO_PIN_9
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#define EEPROM_I2C_SDA_GPIO_PORT GPIOB
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#define EEPROM_I2C_SDA_GPIO_CLK_ENABLE() __GPIOB_CLK_ENABLE()
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#define EEPROM_I2C_SDA_AF GPIO_AF6_I2C4
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/*等待超时时间*/
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#define I2CT_FLAG_TIMEOUT ((uint32_t)0x1000)
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#define I2CT_LONG_TIMEOUT ((uint32_t)(10 * I2CT_FLAG_TIMEOUT))
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#define I2Cx_TIMEOUT_MAX 300
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/* Maximum number of trials for HAL_I2C_IsDeviceReady() function */
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#define EEPROM_MAX_TRIALS 300
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/*信息输出*/
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#define EEPROM_DEBUG_ON 0
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#define EEPROM_INFO(fmt,arg...) printf("<<-EEPROM-INFO->> "fmt"\n",##arg)
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#define EEPROM_ERROR(fmt,arg...) printf("<<-EEPROM-ERROR->> "fmt"\n",##arg)
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#define EEPROM_DEBUG(fmt,arg...) do{\
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if(EEPROM_DEBUG_ON)\
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printf("<<-EEPROM-DEBUG->> [%d]"fmt"\n",__LINE__, ##arg);\
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}while(0)
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/*
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* AT24C02 2kb = 2048bit = 2048/8 B = 256 B
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* 32 pages of 8 bytes each
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*
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* Device Address
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* 1 0 1 0 A2 A1 A0 R/W
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* 1 0 1 0 0 0 0 0 = 0XA0
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* 1 0 1 0 0 0 0 1 = 0XA1
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*/
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/* EEPROM Addresses defines */
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#define EEPROM_Block0_ADDRESS 0xA0 /* E2 = 0 */
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#define EEPROM_Block1_ADDRESS 0xA2 /* E2 = 0 */
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#define EEPROM_Block2_ADDRESS 0xA4 /* E2 = 0 */
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#define EEPROM_Block3_ADDRESS 0xA6 /* E2 = 0 */
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#define EEPROM_ADDRESS 0xA0
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void I2C_EE_Init(void);
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void I2C_EE_BufferWrite(uint8_t* pBuffer, uint8_t WriteAddr, uint16_t NumByteToWrite);
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uint32_t I2C_EE_ByteWrite(uint8_t* pBuffer, uint8_t WriteAddr);
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uint32_t I2C_EE_PageWrite(uint8_t* pBuffer, uint8_t WriteAddr, uint8_t NumByteToWrite);
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uint32_t I2C_EE_BufferRead(uint8_t* pBuffer, uint8_t ReadAddr, uint16_t NumByteToRead);
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extern I2C_HandleTypeDef I2C_Handle;
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#endif /* __I2C_EE_H */
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