3507软件IIC，IO输入输出函数

void SDA_OUT(void)   
{DL_GPIO_initDigitalOutput(MPU6050_SDA_IOMUX);     DL_GPIO_setPins(MPU6050_PORT, MPU6050_SDA_PIN);	   DL_GPIO_enableOutput(MPU6050_PORT, MPU6050_SDA_PIN); 
}
//�ر�SDA���ţ����룩
void SDA_IN(void)
{DL_GPIO_initDigitalInputFeatures(MPU6050_SDA_IOMUX,DL_GPIO_INVERSION_DISABLE, DL_GPIO_RESISTOR_PULL_UP,DL_GPIO_HYSTERESIS_DISABLE, DL_GPIO_WAKEUP_DISABLE);
}

软件I2C

#include "MyI2C.h"
#include "ti_msp_dl_config.h"
#include "delay.h"
//��SDA���ţ������
void SDA_OUT(void)   
{DL_GPIO_initDigitalOutput(MPU6050_SDA_IOMUX);     DL_GPIO_setPins(MPU6050_PORT, MPU6050_SDA_PIN);	   DL_GPIO_enableOutput(MPU6050_PORT, MPU6050_SDA_PIN); 
}
//�ر�SDA���ţ����룩
void SDA_IN(void)
{DL_GPIO_initDigitalInputFeatures(MPU6050_SDA_IOMUX,DL_GPIO_INVERSION_DISABLE, DL_GPIO_RESISTOR_PULL_UP,DL_GPIO_HYSTERESIS_DISABLE, DL_GPIO_WAKEUP_DISABLE);
}void I2C_W_SCL (uint8_t BitValue)
{if(BitValue == 0){DL_GPIO_clearPins(MPU6050_PORT,MPU6050_SCL_PIN);}else{DL_GPIO_setPins(MPU6050_PORT,MPU6050_SCL_PIN);}delay_us(8);
}
void I2C_W_SDA(uint8_t BitValue)
{SDA_OUT();if(BitValue == 0){DL_GPIO_clearPins(MPU6050_PORT,MPU6050_SDA_PIN);}else{DL_GPIO_setPins(MPU6050_PORT,MPU6050_SDA_PIN);}delay_us(8);
}uint8_t I2C_R_SDA(void)
{uint8_t BitValue;SDA_IN();BitValue = DL_GPIO_readPins(MPU6050_PORT,MPU6050_SDA_PIN) == 0 ? 0 : 1;delay_us(8);return BitValue;
}
void I2C_Init(void)
{SYSCFG_DL_GPIO_init();/*����Ĭ�ϵ�ƽ*/DL_GPIO_setPins(MPU6050_PORT, MPU6050_SDA_PIN | MPU6050_SCL_PIN);//����PA8��PA9���ų�ʼ����Ĭ��Ϊ�ߵ�ƽ���ͷ�����״̬��
}
void I2C_Start(void)
{SDA_OUT();I2C_W_SDA(1);I2C_W_SCL(1);I2C_W_SDA(0);I2C_W_SCL(0);
}void I2C_Stop(void)
{SDA_OUT();I2C_W_SDA(0);I2C_W_SCL(1);I2C_W_SDA(1);
}
void I2C_SendByte(uint8_t Byte)
{uint8_t i;SDA_OUT();for(i = 0;i<8;i++){I2C_W_SDA(Byte & (0x80 >> i));I2C_W_SCL(1);I2C_W_SCL(0);}
}uint8_t I2C_ReceiveByte(void)
{uint8_t i,Byte = 0x00;SDA_OUT();I2C_W_SDA(1);for(i = 0;i<8;i++){SDA_IN();I2C_W_SCL(1);if(I2C_R_SDA() == 1)  Byte |= (0x80>>i);I2C_W_SCL(0);}return Byte;
}void I2C_SendAck(uint8_t AckBit)
{SDA_OUT();I2C_W_SDA(AckBit);I2C_W_SCL(1);I2C_W_SCL(0);
}
uint8_t I2C_ReceiveAck(void)
{uint8_t AckBit;SDA_OUT();I2C_W_SDA(1);I2C_W_SCL(1);SDA_IN();AckBit = I2C_R_SDA();I2C_W_SCL(0);return AckBit;
}