Charles Tritt / Mbed OS 21_7SegLU_v5

Introduces arrays by using a lookup table to control a 7-segment display.

main.cpp@110:1381af961a47, 2021-10-02 (annotated)

Committer:
CSTritt
Date:
Sat Oct 02 21:26:37 2021 +0000
Revision:
110:1381af961a47
Parent:
108:eee3167b25b4 
Updated to 2017 program updated to Mbed v5.

Who changed what in which revision?

UserRevisionLine numberNew contents of line
CSTritt 107:61b9c99a4e27 1 /*
CSTritt 110:1381af961a47 2 Project: 21_7SegLU_v5
CSTritt 108:eee3167b25b4 3 File: main.cpp
CSTritt 110:1381af961a47 4
CSTritt 110:1381af961a47 5 Counts through the digits 0 to 9 then DP on the 7-segment display.
CSTritt 108:eee3167b25b4 6
CSTritt 110:1381af961a47 7 See external documentation for pin connections (very important).
CSTritt 110:1381af961a47 8
CSTritt 108:eee3167b25b4 9 Written by: Dr. C. S. Tritt
CSTritt 110:1381af961a47 10 Created: 10/2/21 (v. 1.2)
CSTritt 107:61b9c99a4e27 11 */
Jonathan Austin 0:2757d7abb7d9 12 #include "mbed.h"
CSTritt 108:eee3167b25b4 13
CSTritt 110:1381af961a47 14 BusOut ssDisplay(D3, D4, D5, D6, D7, D8, D9, D10); // Segments, LSB to MSB.
CSTritt 108:eee3167b25b4 15
CSTritt 108:eee3167b25b4 16 int main() {
CSTritt 110:1381af961a47 17 // Declare and initialize array in one step.
CSTritt 110:1381af961a47 18 const int Segments[]
CSTritt 110:1381af961a47 19 {0x81, 0xCF, 0x92, 0x86, 0xCC, 0xA4, 0xA0, 0x8F, 0x80, 0x84, 0x7F};
CSTritt 110:1381af961a47 20
CSTritt 110:1381af961a47 21 while(true) { // Loop forever.
CSTritt 110:1381af961a47 22 for (int i = 0; i <= 10; i++) { // Cycle through digits.
CSTritt 110:1381af961a47 23 ssDisplay = Segments[i]; // Display current digit.
CSTritt 110:1381af961a47 24 ThisThread::sleep_for(1000); // Wait a second, then repeat.
CSTritt 108:eee3167b25b4 25 }
CSTritt 108:eee3167b25b4 26 }
CSTritt 108:eee3167b25b4 27 }