實際項目中用到125K ID卡的數據采樣，發現某些IO口不支持，實測結果如下：

//#define ID_RFIN_PIN PIO0 //ok
//#define ID_RFIN_PIN PIO1 //ok
//#define ID_RFIN_PIN PIO2 //ok
//#define ID_RFIN_PIN PIO3 //error
//#define ID_RFIN_PIN PIO4 //error
//#define ID_RFIN_PIN PIO5 //ok
//#define ID_RFIN_PIN PIO6 //ok
//#define ID_RFIN_PIN PIO7 //ok
//#define ID_RFIN_PIN PIO8 //ok
//#define ID_RFIN_PIN PIO9 //error
//#define ID_RFIN_PIN PIO10 //error
//#define ID_RFIN_PIN PIO11 //error
//#define ID_RFIN_PIN PIO12 //ok
//#define ID_RFIN_PIN PIO13 //ok
//#define ID_RFIN_PIN PIO14 //ok
//#define ID_RFIN_PIN PIO15 //ok
//#define ID_RFIN_PIN PIO16 //ok
//#define ID_RFIN_PIN PIO17 //ok
//#define ID_RFIN_PIN PIO18 //ok
//#define ID_RFIN_PIN PIO19 //ok


//#define ID_RFIN_PIN PIO20 //ok


//#define ID_RFIN_PIN PIO21 //ok
//#define ID_RFIN_PIN PIO22 //ok
//#define ID_RFIN_PIN PIO23 //ok
//#define ID_RFIN_PIN PIO24 //ok
//#define ID_RFIN_PIN PIO25 //ok
//#define ID_RFIN_PIN PIO26 //ok
//#define ID_RFIN_PIN PIO27 //ok
//#define ID_RFIN_PIN PIO28 //ok
//#define ID_RFIN_PIN PIO29 //ok

總結

以上是生活随笔為你收集整理的AB1601某些io口不支持较高频率信号的输入的全部內容，希望文章能夠幫你解決所遇到的問題。

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