用EPWM的TZ做过压过流等保护,模拟信号经过运放处理,再经过比较器,可能还有或门芯片,再接到TZ
模拟信号经过运算放大器再输入到adc口,应该全程都是模拟地吧?
那经过比较器输入到GPIO,GPIO应该是数字地?比较器应该是模拟地?这个模拟地和数字地中间应该处理?
使用的是28335,应该只有ADC口是和模拟地连接的吧
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