GPIO41设置为输入,无上下拉模式,芯片外部GPIO41通过电阻接GND,测试GPIO41对GND的电压为0.02V,输入寄存器GPIO41的状态是1,这是为何?
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CCS10,GPIO40,GPIO41,GPIO44这几个脚的模式配置一样,外部电路是通过电阻拉高或者通道电阻拉到3.3V,作为程序ID号的识别引脚,目前只有GPIO41的脚 DATreg的状态和实际测试的引脚电压不一致,另两个脚是对的。 查看DaT引脚的reg,功能和模式都没有配置错误,只是Dat的值应该是0而不是1.