STM32+FDC1004程序分享

ID:1169100 · 发表于 2026-4-1 15:30

STM32F407驱动FDC1004的程序分享出来：
四通道
Touch.h头文件
#ifndef __Touch_I2C_H
#define __Touch_I2C_H

#include "stm32f4xx.h"
#define I2CT_FLAG_TIMEOUT       ((uint32_t)0x1000)
#define I2CT_LONG_TIMEOUT       ((uint32_t)(10 * I2CT_FLAG_TIMEOUT))

/*I2C引脚*/
#define GTP_I2C1_SCL_PIN                GPIO_Pin_6
#define GTP_I2C1_SCL_GPIO_PORT          GPIOB
#define GTP_I2C1_SCL_GPIO_CLK          RCC_AHB1Periph_GPIOB
#define GTP_I2C1_SCL_SOURCE             GPIO_PinSource6

#define GTP_I2C1_SDA_PIN                GPIO_Pin_7
#define GTP_I2C1_SDA_GPIO_PORT          GPIOB
#define GTP_I2C1_SDA_GPIO_CLK          RCC_AHB1Periph_GPIOB
#define GTP_I2C1_SDA_SOURCE             GPIO_PinSource7

#define GTP_I2C2_SCL_PIN                GPIO_Pin_1
#define GTP_I2C2_SCL_GPIO_PORT          GPIOF
#define GTP_I2C2_SCL_GPIO_CLK          RCC_AHB1Periph_GPIOF
#define GTP_I2C2_SCL_SOURCE             GPIO_PinSource1

#define GTP_I2C2_SDA_PIN                GPIO_Pin_0
#define GTP_I2C2_SDA_GPIO_PORT          GPIOF
#define GTP_I2C2_SDA_GPIO_CLK          RCC_AHB1Periph_GPIOF
#define GTP_I2C2_SDA_SOURCE             GPIO_PinSource0

#define GTP_I2C3_SCL_PIN                GPIO_Pin_8
#define GTP_I2C3_SCL_GPIO_PORT          GPIOA
#define GTP_I2C3_SCL_GPIO_CLK          RCC_AHB1Periph_GPIOA
#define GTP_I2C3_SCL_SOURCE             GPIO_PinSource8

#define GTP_I2C3_SDA_PIN                GPIO_Pin_9
#define GTP_I2C3_SDA_GPIO_PORT          GPIOC
#define GTP_I2C3_SDA_GPIO_CLK          RCC_AHB1Periph_GPIOC
#define GTP_I2C3_SDA_SOURCE             GPIO_PinSource9

#define GTP_I2C4_SCL_PIN                GPIO_Pin_12
#define GTP_I2C4_SCL_GPIO_PORT          GPIOA
#define GTP_I2C4_SCL_GPIO_CLK          RCC_AHB1Periph_GPIOA
#define GTP_I2C4_SCL_SOURCE             GPIO_PinSource12

#define GTP_I2C4_SDA_PIN                GPIO_Pin_11
#define GTP_I2C4_SDA_GPIO_PORT          GPIOA
#define GTP_I2C4_SDA_GPIO_CLK          RCC_AHB1Periph_GPIOA
#define GTP_I2C4_SDA_SOURCE             GPIO_PinSource11

//#define GTP_I2C4_SCL_PIN                GPIO_Pin_8
//#define GTP_I2C4_SCL_GPIO_PORT          GPIOB
//#define GTP_I2C4_SCL_GPIO_CLK          RCC_AHB1Periph_GPIOB
//#define GTP_I2C4_SCL_SOURCE             GPIO_PinSource8

//#define GTP_I2C4_SDA_PIN                GPIO_Pin_9
//#define GTP_I2C4_SDA_GPIO_PORT          GPIOB
//#define GTP_I2C4_SDA_GPIO_CLK          RCC_AHB1Periph_GPIOB
//#define GTP_I2C4_SDA_SOURCE             GPIO_PinSource9

#define I2C1_SCL_1()  GPIO_SetBits(GTP_I2C1_SCL_GPIO_PORT, GTP_I2C1_SCL_PIN) /* SCL = 1 */
#define I2C1_SCL_0()  GPIO_ResetBits(GTP_I2C1_SCL_GPIO_PORT, GTP_I2C1_SCL_PIN)/* SCL = 0 */

#define I2C1_SDA_1()  GPIO_SetBits(GTP_I2C1_SDA_GPIO_PORT, GTP_I2C1_SDA_PIN) /* SDA = 1 */
#define I2C1_SDA_0()  GPIO_ResetBits(GTP_I2C1_SDA_GPIO_PORT, GTP_I2C1_SDA_PIN)/* SDA = 0 */

#define I2C1_SDA_READ()  GPIO_ReadInputDataBit(GTP_I2C1_SDA_GPIO_PORT, GTP_I2C1_SDA_PIN)

#define I2C2_SCL_1()  GPIO_SetBits(GTP_I2C2_SCL_GPIO_PORT, GTP_I2C2_SCL_PIN) /* SCL = 1 */
#define I2C2_SCL_0()  GPIO_ResetBits(GTP_I2C2_SCL_GPIO_PORT, GTP_I2C2_SCL_PIN)/* SCL = 0 */

#define I2C2_SDA_1()  GPIO_SetBits(GTP_I2C2_SDA_GPIO_PORT, GTP_I2C2_SDA_PIN) /* SDA = 1 */
#define I2C2_SDA_0()  GPIO_ResetBits(GTP_I2C2_SDA_GPIO_PORT, GTP_I2C2_SDA_PIN)/* SDA = 0 */

#define I2C2_SDA_READ()  GPIO_ReadInputDataBit(GTP_I2C2_SDA_GPIO_PORT, GTP_I2C2_SDA_PIN)

#define I2C3_SCL_1()  GPIO_SetBits(GTP_I2C3_SCL_GPIO_PORT, GTP_I2C3_SCL_PIN) /* SCL = 1 */
#define I2C3_SCL_0()  GPIO_ResetBits(GTP_I2C3_SCL_GPIO_PORT, GTP_I2C3_SCL_PIN)/* SCL = 0 */

#define I2C3_SDA_1()  GPIO_SetBits(GTP_I2C3_SDA_GPIO_PORT, GTP_I2C3_SDA_PIN) /* SDA = 1 */
#define I2C3_SDA_0()  GPIO_ResetBits(GTP_I2C3_SDA_GPIO_PORT, GTP_I2C3_SDA_PIN)/* SDA = 0 */

#define I2C3_SDA_READ()  GPIO_ReadInputDataBit(GTP_I2C3_SDA_GPIO_PORT, GTP_I2C3_SDA_PIN)

#define I2C4_SCL_1()  GPIO_SetBits(GTP_I2C4_SCL_GPIO_PORT, GTP_I2C4_SCL_PIN) /* SCL = 1 */
#define I2C4_SCL_0()  GPIO_ResetBits(GTP_I2C4_SCL_GPIO_PORT, GTP_I2C4_SCL_PIN)/* SCL = 0 */

#define I2C4_SDA_1()  GPIO_SetBits(GTP_I2C4_SDA_GPIO_PORT, GTP_I2C4_SDA_PIN) /* SDA = 1 */
#define I2C4_SDA_0()  GPIO_ResetBits(GTP_I2C4_SDA_GPIO_PORT, GTP_I2C4_SDA_PIN)/* SDA = 0 */

#define I2C4_SDA_READ()  GPIO_ReadInputDataBit(GTP_I2C4_SDA_GPIO_PORT, GTP_I2C4_SDA_PIN)

//#define SDA_IN() { GPIOA->CRH &= 0xFFFFOFFF; GPIOA->CRH= 4<<12;}
//#define SDA_OUT()  { GPIOA->CRH &= 0xFFFFOFFF; GPIOA->CRH= 7<<12;}
#define SDA_IN() { GPIOA->MODER &= 0xFF3FFFFF;  }
#define SDA_OUT()  { GPIOA->MODER &= 0xFF3FFFFF; GPIOA->MODER |= 1<<22; GPIOA-> OTYPER &= 0xFFFFF7FF; GPIOA-> OTYPER |= 1<<11;}

#define I2C_DIR_WR  0
#define I2C_DIR_RD  1

#define I2C_M_RD       0x0001
#define GTP_ADDR_LENGTH    1

struct i2c_msg
{
uint8_t addr;    /*从设备的I2C设备地址 */
uint16_t flags;    /*控制标志*/
uint16_t len;    /*读写数据的长度    */
uint8_t *buf;    /*存储读写数据的指针 */
};

#define FDC1004_COMM_ID1       0xA0
#define FDC1004_COMM_ID2       0xA0
#define FDC1004_COMM_ID3       0xA0
#define FDC1004_COMM_ID4       0xA0

#define FDC1004_DEVICE_ID    0x1004
#define FDC1004_TI_ID          0x5449

//FDC1004寄存器地址
#define MEAS1_MSB_ADDR          0x00
#define MEAS1_LSB_ADDR          0x01
#define MEAS2_MSB_ADDR          0x02
#define MEAS2_LSB_ADDR          0x03
#define MEAS3_MSB_ADDR          0x04
#define MEAS3_LSB_ADDR          0x05
#define MEAS4_MSB_ADDR          0x06
#define MEAS4_LSB_ADDR          0x07
#define CONF_MEAS1_ADDR       0x08
#define CONF_MEAS2_ADDR       0x09
#define CONF_MEAS3_ADDR       0x0A
#define CONF_MEAS4_ADDR       0x0B
#define FDC_CONF_ADDR          0x0C
#define OFFSET_CAL_CIN1_ADDR    0x0D
#define OFFSET_CAL_CIN2_ADDR    0x0E
#define OFFSET_CAL_CIN3_ADDR    0x0F
#define OFFSET_CAL_CIN4_ADDR    0x10
#define GAIN_CAL_CIN1_ADDR    0x11
#define GAIN_CAL_CIN2_ADDR    0x12
#define GAIN_CAL_CIN3_ADDR    0x13
#define GAIN_CAL_CIN4_ADDR    0x14
#define TI_ID_ADDR             0xFE
#define DEVICE_ID_ADDR          0xFF

void i2c_Delay(uint16_t time);
void I2C_GPIO_Config(void);
void I2C_Touch_Init(void);

int32_t TP1_FDC1004_init(uint8_t client_addr,uint8_t *buf,int32_t len);
int32_t TP2_FDC1004_init(uint8_t client_addr,uint8_t *buf,int32_t len);
int32_t TP3_FDC1004_init(uint8_t client_addr,uint8_t *buf,int32_t len);
int32_t TP4_FDC1004_init(uint8_t client_addr,uint8_t *buf,int32_t len);
float Touch4_Cap_Read(uint8_t client_addr,uint8_t *buf1,uint8_t *buf2,int32_t len);
float Touch3_Cap_Read(uint8_t client_addr,uint8_t *buf1,uint8_t *buf2,int32_t len);
float Touch2_Cap_Read(uint8_t client_addr,uint8_t *buf1,uint8_t *buf2,int32_t len);
float Touch1_Cap_Read(uint8_t client_addr,uint8_t *buf1,uint8_t *buf2,int32_t len);

void i2c4_Ack(void);
void i2c4_NAck(void);
uint8_t i2c4_WaitAck(void);
void i2c4_SendByte(uint8_t _ucByte);
uint8_t i2c4_ReadByte(void);
uint8_t i2c4_Start(void);
void i2c4_Stop(void);
#endif

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