CC2541_I2C_C语言程序,调用接口与arduino wire 相同

#include "wire.h" static uint8 i2cAddr; void begin(uint8 address,i2cClock_t clockRate) { i2cAddr = address << 1; I2C_WRAPPER_DISABLE(); I2CADDR = 0; // no multi master support at this time I2C_CLOCK_RATE(clockRate); I2C_ENABLE(); } uint8 beginTransmission(void) { I2C_STRT(); if (I2CSTAT == mstStarted) /* A start condition has been transmitted */ { I2C_WRITE(i2cAddr | 0x00); } //return I2CSTAT; } void endTransmission(void) { I2C_STOP(); } uint8 requestFrom(void) { I2C_STRT(); if (I2CSTAT == mstStarted) /* A start condition has been transmitted */ { I2C_WRITE(i2cAddr | 0x01); } return I2CSTAT; } uint8 read(uint8 is_ack) { uint8 data=0; if (is_ack == 0) { I2C_SET_ACK(); } else { I2C_SET_NACK(); } I2C_READ(data); return data; } void write(uint8 data) { I2C_WRITE(data); }