ADS1259: ADS1259

我的ADS1259转换结果一直比输入真实值小5.525倍左右（估计的），测试了很多数据都是这样的，非常稳定。有没有大佬可以告诉我可能是什么原因导致的呀？

这是我的初始化代码

void ADS1259_INIT(void)
{
HAL_Delay(20);
ADS1259_RESET_H;
ADS1259_START_H;
ADS1259_CS_L;
HAL_Delay(20);
ADS1259_reset();
HAL_Delay(20);
//ADS1259_WRITE(0x11);
ADS1259_WRITE(0x40);
ADS1259_WRITE(0x08);
ADS1259_WRITE(0x05);
ADS1259_WRITE(0x11);
ADS1259_WRITE(0x06);
ADS1259_WRITE(0x00);
ADS1259_WRITE(0x00);
ADS1259_WRITE(0x00);
ADS1259_WRITE(0x00);
ADS1259_WRITE(0x00);
ADS1259_WRITE(0x40);
HAL_Delay(20);
}