电路采用TI开发板电路,SPI对于寄存器的操作正常。可是采集AD却不正常。
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这个不正常是不能正常读结果还是读出结果有误?可否确定是硬件问题还是软件问题?建议先检查时钟/电源/基准是否准确,然后试试看测直流信号结果如何,比如测1/4 reference,或者1/2reference。