基于51单片机的HMC5883L或QMC5883L程序
//***************************************************
void Single_Write_HMC5883(uchar REG_Address,uchar REG_data)
{
HMC5883_Start(); //起始信号
HMC5883_SendByte(SlaveAddress); //发送设备地址+写信号
HMC5883_SendByte(REG_Address); //内部寄存器地址，请参考中文pdf
HMC5883_SendByte(REG_data); //内部寄存器数据，请参考中文pdf
HMC5883_Stop(); //发送停止信号
}
//********单字节读取内部寄存器*************************
uchar Single_Read_HMC5883(uchar REG_Address)
{
uchar REG_data;
HMC5883_Start(); //起始信号
HMC5883_SendByte(SlaveAddress); //发送设备地址+写信号
HMC5883_SendByte(REG_Address); //发送存储单元地址，从0开始
HMC5883_Start(); //起始信号
HMC5883_SendByte(SlaveAddress+1); //发送设备地址+读信号
REG_data=HMC5883_RecvByte(); //读出寄存器数据
HMC5883_SendACK(1);
HMC5883_Stop(); //停止信号
return REG_data;
}
//******************************************************
//
//连续读出HMC5883内部角度数据，地址范围0x3~0x5
//
//******************************************************
void Multiple_read_HMC5883(void)
{
uchar i;
HMC5883_Start(); //起始信号
HMC5883_SendByte(SlaveAddress); //发送设备地址+写信号
HMC5883_SendByte(0x03); //发送存储单元地址，从0x3开始
HMC5883_Start(); //起始信号
HMC5883_SendByte(SlaveAddress+1); //发送设备地址+读信号
for (i=0; i<6; i++) //连续读取6个地址数据，存储中BUF
{
BUF[i] = HMC5883_RecvByte(); //BUF[0]存储数据
if (i == 5)
{
HMC5883_SendACK(1); //最后一个数据需要回NOACK
}
else
{
HMC5883_SendACK(0); //回应ACK
}
}
HMC5883_Stop(); //停止信号
Delay5ms();
}
//初始化HMC5883，根据需要请参考pdf进行修改****
void Init_HMC5883()
{
Single_Write_HMC5883(0x02,0x00); //
}
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资源详情
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本站所有资源不代表本站的观点或立场，基于网友分享，根据中国法律《信息网络传播权保护条例》第二十二条之规定，若资源存在侵权或相关问题请联系本站客服人员，zhiweidada#qq.com，请把#换成@，本站将给予最大的支持与配合，做到及时反馈和处理。关于更多版权及免责申明参见 版权及免责申明