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More modifications to circuit diagramme formatting

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Jonathan Chan 2018-01-13 20:40:11 -08:00
parent 17d20fe9f2
commit 07881e8d13
1 changed files with 10 additions and 8 deletions
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18
lab1/lab1_notes.txt
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@ -42,19 +42,21 @@ The 4-digit 7-segment multiplexed display has seven inputs:
- A1 A0: the input for selecting a digit, where 0b11 is leftmost and 0b00 is rightmost
- STR: when this voltage goes from LO to HI, the value given by Dx is loaded into the digit selected by Ax
A brief circuit diagramme:
A brief circuit diagramme for wiring up the switches to the Dx inputs, the button to the strobe, and Ax:
Ohmm...
+5V ----VVVV------------------------------------------------------------|
+5V ____VVV_____________________________________________________________
| __ | __ | __ | __ |
|_____| | |_____| | |_____| | |_____| | |
______|SW| ______|SW| ______|SW| ______|SW| |__ set manually
| GRD-|__| | GRD-|__| | GRD-|__| | GRD-|__| | O| to select digit
|_____| | |_____| | |_____| | |_____| | | set manually with
______|SW| ______|SW| ______|SW| ______|SW| |__ ground or power
| GRD_|__| | GRD_|__| | GRD_|__| | GRD_|__| | O| to select digit
| | | | |__| | |
| | | | | | |
D3 D2 D1 D0 STR A1 A0
__ __ __ __
|__| |__| |__| |__|
|__| |__| |__| |__|
_____________________________________________________
| __ __ __ __ |
| |__| |__| |__| |__| |
| |__| |__| |__| |__| |
|_____________________________________________________|
11 10 01 00 == A1 A0