使用ADS5402/ADS5404采集数据,想通过test pattern模式测试下回传数据,根据手册中提示先将HP置0,然后写0x3c,0x3d,0x3e三个寄存器,但是按照提示操作后回传数据为全0,并且通过sdo回读寄存器也全是0,想请教下TI工程师,怎么使用test pattern模式才能正确回读到数据呢??
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