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ADS246x写入寄存器不成功

Other Parts Discussed in Thread: ADS1246

你好:

在调试ADS1246时,出现向ADS1246写入寄存器不成功但读取采样数据正常的现象,MUC与ADS1246不在一块电路板上,SPI总线通过30cm的排线+FPC1.0连接,在sclk线上接上示波器或并联一个下拉电阻后,写入寄存器就可以正常,通过示波器测量可以看到在1246端的SPI总线上的sclk上有比较大的过冲,在MCU端sclk信号看不到过冲;请帮忙分析原因和解决方法,

 十分感谢!!