看了芯片手册,不太明白
Star Xu:
The AUX input can be connected anywhere within the analog input range of the pin as shown in the datasheet image below. To clarify, is the issue that when AUX is connected to GND you receive a random PENIRQ or that when left floating there are issues?
JIARONG YE:
回复 Star Xu:
意思是说可以做一个帮助测试中断的作用?
Kailyn Chen:
回复 JIARONG YE:
AUX 是一个辅助模拟输入通道,可以看下IFgure23的内部 架构,通过配置内部多路选择器,选择AD convter的IN+端是连接X通道,Y通道还是辅助输入AUX 通道。