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