DE10-Lite输入/出高/低电平说明

DE10-Lite输入/出高/低电平说明

DE10-Lite实验板上有一些设备可以输入/出高/低电平,说明如下:

1. HEX 7-segment LED displays (active low)共阳极
   1. On — "0"
   2. Off — "1"
2. LEDR LED displays (active high)下拉
   1. On — "1"
   2. Off — "0"
3. SW switches (active high)上1下0
   1. Up position — "1"
   2. Down position — "0"
4. KEY push buttons (active low)按下0弹起1
   
   De-bounced [DE-10 Lite User Manual, page 6, 25]
   1. Press —
      "0"
   2. Release — "1"

References:

1. Notes on active high/low inputs/outputs
for the DE-10 Lite and DE1-SoC

Department of Electrical and Computer
Engineering

University of California, Davis

https://www.ece.ucdavis.edu/~bbaas/180/lab/DE10-lite.active.levels.html

Written by YongfengXie

2022/05/25  
  Written