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xidameng 2020-07-31 22:16:12 +08:00
commit 8508ee6139
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sdk/component/common/drivers/i2c/stm32_i2c.h Normal file
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#ifndef _STM32_I2C_H_
#define _STM32_I2C_H_
#include <stdint.h>
#define I2C_MASTER
// I2C mode supported
#define I2C_OP_MODE_POLLING 0x01
#define I2C_OP_MODE_INTERRUPT 0x02
#define I2C_OP_MODE_DMA_POLLING 0x04
#define I2C_OP_MODE_DMA_INTERRUPT 0x08
// Define I2C Speed --------------------------------------------------------
#ifdef FAST_I2C_MODE
#define I2C_SPEED 340000
#define I2C_DUTYCYCLE I2C_DutyCycle_16_9
#else // STANDARD_I2C_MODE
#define I2C_SPEED 100000
#define I2C_DUTYCYCLE I2C_DutyCycle_2
#endif // FAST_I2C_MODE
// Define I2C operation mode
#ifndef I2C_OP_MODE
#define I2C_OP_MODE I2C_OP_MODE_INTERRUPT
#endif
// I2Cx Communication boards Interface
#define I2Cx_NUM I2C1
#define I2Cx_CLK RCC_APB1Periph_I2C1
#define I2Cx_EV_IRQn I2C1_EV_IRQn
#define I2Cx_ER_IRQn I2C1_ER_IRQn
#define I2Cx_EV_IRQHANDLER I2C1_EV_IRQHandler
#define I2Cx_ER_IRQHANDLER I2C1_ER_IRQHandler
#define I2Cx_SDA_GPIO_CLK RCC_AHB1Periph_GPIOB
#define I2Cx_SDA_PIN GPIO_Pin_9
#define I2Cx_SDA_GPIO_PORT GPIOB
#define I2Cx_SDA_SOURCE GPIO_PinSource9
#define I2Cx_SDA_AF GPIO_AF_I2C1
#define I2Cx_SCL_GPIO_CLK RCC_AHB1Periph_GPIOB
#define I2Cx_SCL_PIN GPIO_Pin_8
#define I2Cx_SCL_GPIO_PORT GPIOB
#define I2Cx_SCL_SOURCE GPIO_PinSource8
#define I2Cx_SCL_AF GPIO_AF_I2C1
#if (I2C_OP_MODE == I2C_OP_MODE_INTERRUPT)
#define stm32_i2c_tx stm32_i2c_tx_int
#define stm32_i2c_rx stm32_i2c_rx_int
#else
#error
#endif
void stm32_i2c_ev_isr(void);
void stm32_i2c_err_isr(void);
uint32_t stm32_i2c_tx(uint16_t device_address, uint8_t send_start, const uint8_t *tx_data, uint32_t count, uint8_t send_stop);
uint32_t stm32_i2c_rx(uint16_t device_address, uint8_t send_start, uint8_t *rx_data, uint32_t count, uint8_t send_nak, uint8_t send_stop);
int stm32_i2c_init(void);
void stm32_i2c_deinit(void);
#endif //_STM32_I2C_H_