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首先,您需要正确配置TDC,然后再看TDC的工作情况,现在读寄存器值不是期望值,说明寄存器配置还存在问题,需先解决寄存器配置问题;是否可以正确配置寄存器可以通过写入寄存器一个值然后可以把这个值读出来来验证。
还是建议您附上读或写寄存器的SPI时序图以进行分析是哪里的问题