[问答]

使用pic18f4520的I2c通信出现问题

问答对人有帮助，内容完整，我也想知道答案 0 他使用pic18f4520与德州仪器LDC1612感应传感器通信，当我试图从LDC1612读取数据时，读取它的总是0x7FFF。感谢您的帮助。这里是ldc1612和pic18f4520数据表ldc1612和pic18f4520数据表www.ti.com/" target="_blank">***[url]www.ti.com/[/url]光亮/ds/snoscy9/snoscy9.snoscy9/snoscy9/snoscy9.pd9.pdf//http://http://www1.微芯片.com/...n/DeviceDoc/39631E.pdffff以下是我正在使用的代码。\\\\\\\\\\\SC=0b10011011;PORTCbits.RC5 = 0;CloseI2C();OpenI2C (MASTER, SLEW_OFF);SSPADD = 9;Starti2C();while(SSPCON2bits.SEN);IdleI2C();WriteI2C(0X2A);IdleI2C();AckI2C();IdleI2C();WriteI2C(0x08);IdleI2C();AckI2C();IdleI2C();WriteI2C(0xFF);IdleI2C();AckI2C();IdleI2C();WriteI2C(0xFF);IdleI2C();NotAckI2C();IdleI2C();StopI2C();StartI2C();IdleI2C();WriteI2C(0X2A);IdleI2C();AckI2C();IdleI2C();WriteI2C(0x10);IdleI2C();AckI2C();IdleI2C();WriteI2C(0x04);IdleI2C();AckI2C();IdleI2C();WriteI2C(0x00);IdleI2C();NotAckI2C();IdleI2C();StopI2C();StartI2C();IdleI2C();WriteI2C(0X2A);IdleI2C();AckI2C();IdleI2C();WriteI2C(0x14);IdleI2C();AckI2C();IdleI2C();WriteI2C(0x10);IdleI2C();AckI2C();IdleI2C();WriteI2C(0x01);IdleI2C();NotAckI2C();IdleI2C();StopI2C();StartI2C();IdleI2C();WriteI2C(0X2A);IdleI2C();AckI2C();IdleI2C();WriteI2C(0x19);IdleI2C();AckI2C();IdleI2C();WriteI2C(0x00);IdleI2C();AckI2C();IdleI2C();WriteI2C(0x85);IdleI2C();NotAckI2C();IdleI2C();StopI2C();StartI2C();IdleI2C();WriteI2C(0X2A);IdleI2C();AckI2C();IdleI2C();WriteI2C(0x1A);IdleI2C();AckI2C();IdleI2C();WriteI2C(0X1E);IdleI2C();AckI2C();IdleI2C();WriteI2C(0x01);IdleI2C();NotAckI2C();IdleI2C();StopI2C();StartI2C();IdleI2C();WriteI2C(0X2A);IdleI2C();AckI2C();IdleI2C();WriteI2C(0x1B);IdleI2C();AckI2C();IdleI2C();WriteI2C(0x02);IdleI2C();AckI2C();IdleI2C();WriteI2C(0x0c);IdleI2C();NotAckI2C();IdleI2C();StopI2C();StartI2C();IdleI2C();WriteI2C(0X2A);IdleI2C();AckI2C();IdleI2C();WriteI2C(0x1e);IdleI2C();AckI2C();IdleI2C();WriteI2C(0x84);IdleI2C();AckI2C();IdleI2C();WriteI2C(0x40);IdleI2C();NotAckI2C();IdleI2C();StopI2C();StartI2C();IdleI2C();WriteI2C(0X2A);IdleI2C();AckI2C();IdleI2C();WriteI2C(0x7E);IdleI2C();NotAckI2C();IdleI2C();StopI2C();PORTCbits.RC5=1;StartI2C();IdleI2C();WriteI2C(0X2B);IdleI2C();AckI2C();IdleI2C();DataRdyI2C();IdleI2C();RawDataHi = REdi2c-（）；AcII2C~（）；IDLeI2C~（）；RawDataLo＝Redi2C~（）；IDLeI2C~（）；NoTaCi2C~（）；Studii2C~（）；而（1）；}；以上来自于百度翻译以下为原文 Hi im using pic18f4520 to communicate with texas instrument LDC1612 inductive sensor, when i try to read data from the LDC1612 the reading its always 0x7FFF. Any help is appreciated thank you in advance. Here is the link for ldc1612 and pic18f4520 datasheet http://www.ti.com/lit/ds/snoscy9/snoscy9.pdf // http://ww1.microchip.com/...n/DeviceDoc/39631E.pdf below is the code that i am using. #include #include char RawDataHi=0, RawDataLo=0; void main () { TRISC = 0b10011011; PORTCbits.RC5 = 0; CloseI2C(); OpenI2C (MASTER, SLEW_OFF); SSPADD = 9; StartI2C(); while(SSPCON2bits.SEN); IdleI2C(); WriteI2C(0X2A); IdleI2C(); AckI2C(); IdleI2C(); WriteI2C(0x08); IdleI2C(); AckI2C(); IdleI2C(); WriteI2C(0xFF); IdleI2C(); AckI2C(); IdleI2C(); WriteI2C(0xFF); IdleI2C(); NotAckI2C(); IdleI2C(); StopI2C(); StartI2C(); IdleI2C(); WriteI2C(0X2A); IdleI2C(); AckI2C(); IdleI2C(); WriteI2C(0x10); IdleI2C(); AckI2C(); IdleI2C(); WriteI2C(0x04); IdleI2C(); AckI2C(); IdleI2C(); WriteI2C(0x00); IdleI2C(); NotAckI2C(); IdleI2C(); StopI2C(); StartI2C(); IdleI2C(); WriteI2C(0X2A); IdleI2C(); AckI2C(); IdleI2C(); WriteI2C(0x14); IdleI2C(); AckI2C(); IdleI2C(); WriteI2C(0x10); IdleI2C(); AckI2C(); IdleI2C(); WriteI2C(0x01); IdleI2C(); NotAckI2C(); IdleI2C(); StopI2C(); StartI2C(); IdleI2C(); WriteI2C(0X2A); IdleI2C(); AckI2C(); IdleI2C(); WriteI2C(0x19); IdleI2C(); AckI2C(); IdleI2C(); WriteI2C(0x00); IdleI2C(); AckI2C(); IdleI2C(); WriteI2C(0x85); IdleI2C(); NotAckI2C(); IdleI2C(); StopI2C(); StartI2C(); IdleI2C(); WriteI2C(0X2A); IdleI2C(); AckI2C(); IdleI2C(); WriteI2C(0x1A); IdleI2C(); AckI2C(); IdleI2C(); WriteI2C(0X1E); IdleI2C(); AckI2C(); IdleI2C(); WriteI2C(0x01); IdleI2C(); NotAckI2C(); IdleI2C(); StopI2C(); StartI2C(); IdleI2C(); WriteI2C(0X2A); IdleI2C(); AckI2C(); IdleI2C(); WriteI2C(0x1B); IdleI2C(); AckI2C(); IdleI2C(); WriteI2C(0x02); IdleI2C(); AckI2C(); IdleI2C(); WriteI2C(0x0c); IdleI2C(); NotAckI2C(); IdleI2C(); StopI2C(); StartI2C(); IdleI2C(); WriteI2C(0X2A); IdleI2C(); AckI2C(); IdleI2C(); WriteI2C(0x1e); IdleI2C(); AckI2C(); IdleI2C(); WriteI2C(0x84); IdleI2C(); AckI2C(); IdleI2C(); WriteI2C(0x40); IdleI2C(); NotAckI2C(); IdleI2C(); StopI2C(); StartI2C(); IdleI2C(); WriteI2C(0X2A); IdleI2C(); AckI2C(); IdleI2C(); WriteI2C(0x7E); IdleI2C(); NotAckI2C(); IdleI2C(); StopI2C(); PORTCbits.RC5=1; StartI2C(); IdleI2C(); WriteI2C(0X2B); IdleI2C(); AckI2C(); IdleI2C(); DataRdyI2C(); IdleI2C(); RawDataHi = ReadI2C(); IdleI2C(); AckI2C(); IdleI2C(); RawDataLo = ReadI2C(); IdleI2C(); NotAckI2C(); StopI2C(); while(1); } 0
2019-7-17 13:15:26　　评论淘帖0 邀请回答您可以邀请以下用户，快速回答问题 × qun333 该类别下有 57 个回答。邀请回答技术发广告该类别下有 56 个回答。邀请回答 caoguiqun 该类别下有 56 个回答。邀请回答 psw30 该类别下有 44 个回答。邀请回答伊丹姿子该类别下有 41 个回答。邀请回答 uwufwjrw 该类别下有 39 个回答。邀请回答 hetao1111 该类别下有 38 个回答。邀请回答 lc123617 该类别下有 35 个回答。邀请回答欧阳大大该类别下有 32 个回答。邀请回答作死不止该类别下有 31 个回答。邀请回答 asd010 该类别下有 31 个回答。邀请回答 wy8719 该类别下有 29 个回答。邀请回答 60user92 该类别下有 29 个回答。邀请回答 ju978779 该类别下有 28 个回答。邀请回答嘻嘻爱哈哈该类别下有 28 个回答。邀请回答 haikitty 该类别下有 28 个回答。邀请回答 pol666 该类别下有 27 个回答。邀请回答 xiuzhen122 该类别下有 27 个回答。邀请回答 ueywyrsdfs 该类别下有 26 个回答。邀请回答 lhly23 该类别下有 25 个回答。邀请回答举报王华梅相关推荐 • PIC18F4520的存储器大小 2549 • 怎么使用PIC18F4520实现中断功能？ 2141 • 带ICD3的PIC18F4520无法对器件进行编程 1996 • 怎么使用PIC18F46K22的I2C通信 2636 • 哪里可以找到PIC18F4550的I2C库？ 1411 • Pic18F45 io视图中不存在I2C寄存器 1449 • 请问电源和晶体值之间有什么关系吗？PIC在正常条件下运行4MHz需要多少电压？ 2524 • PIC16F15356的I2C问题 1829 • I2C模式无效-PIC18F27K40的MSSP外设 2600 • 使用PIC18F4520在Proteus上进行异步串行通信 2146 1个回答

答案对人有帮助，有参考价值 0 你好，请对你的代码做一些评论。然后我们可以看到你想要做什么。以上来自于百度翻译以下为原文 Hi, Please put some comments on your code. Then we can see what you are trying to do.

2019-7-17 13:27:04 评论举报望艳妮