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ads1298的采样不正确的问题

1:配置寄存器读写正确

2:1、2通道配置为标准导联配置文件如下:

void Ads1298Setting(void)
{
    Ads1298RegWrite(EXT_GPIO,0x50);
    Ads1298RegWrite(CONFIG1,0x86);
    Ads1298RegWrite(CONFIG2,0x00);
    Ads1298RegWrite(CONFIG3,0xDC);  //DC
    Ads1298RegWrite(LOFF,0x03);
    Ads1298RegWrite(RLD_SENSP,0x00);
    Ads1298RegWrite(RLD_SENSN,0xfc);
    Ads1298RegWrite(LOFF_SENSP,0xff);
    Ads1298RegWrite(LOFF_SENSN,0x00);
    Ads1298RegWrite(LOFF_FLIP,0x00);
    Ads1298RegWrite(CH1SET,0x00);
    Ads1298RegWrite(CH2SET,0x00);
    Ads1298RegWrite(CH3SET,0x00);
    Ads1298RegWrite(CH4SET,0x00);
    Ads1298RegWrite(CH5SET,0x00);
    Ads1298RegWrite(CH6SET,0x00);
    Ads1298RegWrite(CH7SET,0x00);
    Ads1298RegWrite(CH8SET,0x00);
    Ads1298RegWrite(PACE,0x00);
    Ads1298RegWrite(RESP,0x00);
    Ads1298RegWrite(CONFIG4,0x02);
    Ads1298RegWrite(WCT1,0x0B);
    Ads1298RegWrite(WCT2,0xC2);
}

3:采样电路原理如下基本按开发板上的处理(已检查好多次)

4:用手触摸导联采样数据有变化,

5:采样标准发生器产生标  I 导的波形的数据呈方波阶梯的变化

6:事情比较急,高手请指教

Jack Li:

如你能正常读写内部的寄存器,说明你的读写时序可以正常工作,那主要检查你前面模拟部分了。建议把原理图贴上来,大家帮你看看。

xiping hu:

回复 Jack Li:

ads1298采样部分.pdf

xiping hu:

回复 Jack Li:

xiping hu:

回复 Jack Li:

xiping hu:

回复 Jack Li:

一个星期了,没有回复???

xiping hu:

回复 Jack Li:

这是怎么导致的,麻烦TI的大神回复一下,帮忙解决这个问题

user5772960:

回复 xiping hu:

您好,请问下您现在的问题解决了吗?

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