分享一個鼠標旋轉(zhuǎn)編碼器的代碼，EC11應(yīng)該是一樣的

ID:61973 · 發(fā)表于 2021-1-25 22:19

#define WHEEL_DATA_A_GPIO P10          //輸入上拉
#define WHEEL_DATA_B_GPIO P11          //輸入上拉
u8 Wheel;                            //旋轉(zhuǎn)的脈沖數(shù)，讀取后清0
void mouse_Wheel_Check(void)          //放在主循環(huán)即可
{
static u8 wheelStateLast = 0;
static u8 wheelStateBefore = 0;
static u8 wheelStateNow = 0;
u8 result = 0;
u8 tempState = (WHEEL_DATA_A_GPIO << 1)|WHEEL_DATA_B_GPIO;
if(wheelStateNow == tempState)
{
return;
}
wheelStateLast = wheelStateBefore;
wheelStateBefore = wheelStateNow;
wheelStateNow = tempState;
result = (wheelStateNow << 4) |(wheelStateBefore << 2) |wheelStateLast;
switch(result)
{
case 0x38:
case 0x07:
Wheel--;
break;
case 0x34:
case 0x0b:
Wheel++;
break;
default:
break;
}
}

ID:869417 · 發(fā)表于 2021-1-26 08:58

學(xué)習(xí)了。正想利用鼠標。

ID:831068 · 發(fā)表于 2021-3-11 11:29

這樣寫，有做抖動處理嗎

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