EmbeddedArtists AB
/
lpc812_exp_solution_7-segment
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Dependencies: lpc812_exp_lib_PCF8591 mbed
Revision 0:e64372861297, committed 2013-11-22
- Comitter:
- embeddedartists
- Date:
- Fri Nov 22 14:07:10 2013 +0000
- Commit message:
- First version
Changed in this revision
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/lpc812_exp_lib_PCF8591.lib Fri Nov 22 14:07:10 2013 +0000 @@ -0,0 +1,1 @@ +https://mbed.org/users/embeddedartists/code/lpc812_exp_lib_PCF8591/#53bf66c0e0f6
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Fri Nov 22 14:07:10 2013 +0000
@@ -0,0 +1,93 @@
+#include "mbed.h"
+
+DigitalIn button(D0);
+
+DigitalOut segA(D4);
+DigitalOut segB(D7);
+DigitalOut segC(D8);
+DigitalOut segD(D10);
+DigitalOut segE(D11);
+DigitalOut segF(D12);
+DigitalOut segG(D13);
+DigitalOut segDP(D9);
+
+static void show(int val) {
+ // turn off all segments
+ segA = segB = segC = segD = segE = segF = segG = 1;
+
+ // turn on segments depending on what to show
+ switch (val) {
+ case 0: segA = segB = segC = segD = segE = segF = 0; break;
+ case 1: segB = segC = 0; break;
+ case 2: segA = segB = segD = segE = segG = 0; break;
+ case 3: segA = segB = segC = segD = segG = 0; break;
+ case 4: segB = segC = segF = segG = 0; break;
+ case 5: segA = segC = segD = segF = segG = 0; break;
+ case 6: segA = segC = segD = segE = segF = segG = 0; break;
+ case 7: segA = segB = segC = 0; break;
+ case 8: segA = segB = segC = segD = segE = segF = segG = 0; break;
+ case 9: segA = segB = segC = segD = segF = segG = 0; break;
+
+ case 'A': segA = 0; break;
+ case 'B': segB = 0; break;
+ case 'C': segC = 0; break;
+ case 'D': segD = 0; break;
+ case 'E': segE = 0; break;
+ case 'F': segF = 0; break;
+ case 'G': segG = 0; break;
+ }
+}
+
+static void experiment2_alt1()
+{
+ // Enter forever loop
+ while(1) {
+ for (int i = 0; i < 10; i++) {
+ // Delay a specified period of time or wait for push-button to be pressed
+ wait(0.3);
+
+ show(i);
+ }
+ }
+}
+
+static void experiment2_alt2()
+{
+ // Enable button
+ button.mode(PullUp);
+
+ // Enter forever loop
+ while(1) {
+ for (int i = 0; i < 10; i++) {
+ // Delay a specified period of time or wait for push-button to be pressed
+ while(button);
+ while(!button);
+
+ show(i);
+ }
+ }
+}
+
+static void experiment2_alt3()
+{
+ // Enter forever loop
+ while(1) {
+ for (int i = 'A'; i < 'G'; i++) {
+ // Delay a specified period of time or wait for push-button to be pressed
+ wait(0.3);
+
+ show(i);
+ }
+ }
+}
+
+
+int main()
+{
+ // turn off all segments
+ segA = segB = segC = segD = segE = segF = segG = segDP = 1;
+
+ //experiment2_alt1(); // Automatic counting
+ //experiment2_alt2(); // Push button advances counting
+ experiment2_alt3(); // Automatic running one
+}
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Fri Nov 22 14:07:10 2013 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/a9913a65894f \ No newline at end of file