:::
Browsing this Thread:
1 Anonymous Users
|
16F877A新手一問
|
||||
|---|---|---|---|---|
|
初級會員
 
|
不知為什麼...用麵包板接一個跑馬燈(8顆led)的電路
1.為什麼手只要一碰到地線、+5v、或任何訊號線或任何元件的金屬部分,一切的正常動作都會不見...連振盪器也不振盪了(感覺好像reset一樣) 最怪的是...當異常出現時,要把手肘放在書桌上,訊號馬上又跑出來 2.振盪器頻率雖然正確(4Mhz),但振幅才1V...8051都5v,差太多了吧 有人知道為什麼佰這樣子嗎?剛起步玩pic,就遇到處理不來的問題了
發表於: 2009/9/8 11:31
|
|||
|
||||
You can view topic.
你 不可以 發起新主題
You cannot reply to posts.
You cannot edit your posts.
You cannot delete your posts.
You cannot add new polls.
You cannot vote in polls.
You cannot attach files to posts.
You cannot post without approval.
You cannot use topic type.
You cannot use HTML syntax.
You cannot use signature.
You cannot create PDF files.
You cannot get print page.
