Andrew Bell
/
lab3_keypad
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Revision 0:97427cf843b1, committed 2021-02-12
- Comitter:
- andrewbw01
- Date:
- Fri Feb 12 11:10:52 2021 +0000
- Commit message:
- working keypad
Changed in this revision
| main.cpp | Show annotated file Show diff for this revision Revisions of this file |
| mbed.bld | Show annotated file Show diff for this revision Revisions of this file |
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Fri Feb 12 11:10:52 2021 +0000
@@ -0,0 +1,208 @@
+#include "mbed.h"
+
+BusOut LED_Disp(p7,p11,p9,p8,p5,p6,p10,p12);
+
+
+
+DigitalOut col1 (p26); // pin 4 on keypad
+DigitalOut col2 (p28); // pin 2
+DigitalOut col3 (p24); // pin 6
+
+DigitalIn row1 (p27); // pin 3
+DigitalIn row2 (p22); // pin 8
+DigitalIn row3 (p23); // pin 7
+DigitalIn row4 (p25); // pin 5
+
+DigitalOut test1(LED1);
+DigitalOut test2(LED2);
+DigitalOut test3 (LED3);
+int count;
+void DisplayNumber(int);
+
+
+char keypad(void)
+{
+ col1 = 1; //colunm 1 high
+ col2 = 0;
+ col3 = 0;
+
+ if (row1==1)
+ {
+ while(row1==1){}
+
+ col1 = 0;
+ col2 = 0;
+ col3 = 0;
+ DisplayNumber(1);
+
+
+ }
+ else if (row2==1)
+ {
+ while (row2==1){}
+
+ col1 = 0;
+ col2 = 0;
+ col3 = 0;
+ DisplayNumber(4);
+ }
+ else if (row3==1)
+ {
+ while (row3==1){}
+
+ col1 = 0;
+ col2 = 0;
+ col3 = 0;
+ DisplayNumber(7);
+ }
+ else if (row4==1)
+ {
+ while (row4==1){}
+
+ col1 = 0;
+ col2 = 0;
+ col3 = 0;
+ DisplayNumber(11);
+ }
+
+ return(0);
+}
+
+char keypad2(void)
+{
+ col1 = 0; //colunm 2 high
+ col2 = 1;
+ col3 = 0;
+
+ if (row1==1)
+ {
+ while(row1==1){}
+ col1 = 0;
+ col2 = 0;
+ col3 = 0;
+ DisplayNumber(2);
+ }
+ else if (row2==1)
+ {
+ while (row2==1){}
+ col1 = 0;
+ col2 = 0;
+ col3 = 0;
+ DisplayNumber(5);
+ }
+ else if (row3==1)
+ {
+ while (row3==1){}
+ col1 = 0;
+ col2 = 0;
+ col3 = 0;
+ DisplayNumber(8);
+ }
+
+ else if (row4==1)
+ {
+ while (row4==1){}
+ col1 = 0;
+ col2 = 0;
+ col3 = 0;
+ DisplayNumber(0);
+ }
+return(0);
+}
+
+char keypad3(void)
+{
+ col1 = 0; //colunm 3 high
+ col2 = 0;
+ col3 = 1;
+
+ if (row1==1)
+ {
+ while (row1==1){}
+ col1 = 0;
+ col2 = 0;
+ col3 = 0;
+ DisplayNumber(3);
+ }
+ else if (row2==1)
+ {
+ while (row2==1){}
+ col1 = 0;
+ col2 = 0;
+ col3 = 0;
+ DisplayNumber(6);
+ }
+ else if (row3==1)
+ {
+ while (row3==1){}
+ col1 = 0;
+ col2 = 0;
+ col3 = 0;
+ DisplayNumber(9);
+ }
+ else if (row4==1)
+ {
+ while (row4==1){}
+ col1 = 0;
+ col2 = 0;
+ col3 = 0;
+ DisplayNumber(10);
+ }
+
+ return(0);
+}
+
+int main()
+{
+ DisplayNumber(0);
+ while(1)
+ {
+ keypad();
+ keypad2();
+ keypad3();
+ }
+}
+
+void DisplayNumber(int num)
+{
+ switch(num)
+ {
+ case 0:
+ LED_Disp = ~0x3F;
+ break;
+ case 1:
+ LED_Disp = ~0x06;
+ break;
+ case 2:
+ LED_Disp = ~0x5B;
+ break;
+ case 3:
+ LED_Disp = ~0x4F;
+ break;
+ case 4:
+ LED_Disp = ~0x66;
+ break;
+ case 5:
+ LED_Disp = ~0x6D;
+ break;
+ case 6:
+ LED_Disp = ~0x7D;
+ break;
+ case 7:
+ LED_Disp = ~0x07;
+ break;
+ case 8:
+ LED_Disp = ~0x7F;
+ break;
+ case 9:
+ LED_Disp = ~0x67;
+ break;
+ case 10: //#
+ LED_Disp = ~0x5c;
+ break;
+ case 11: //*
+ LED_Disp = ~0x63;
+ break;
+ }
+}
+
\ No newline at end of file
--- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Fri Feb 12 11:10:52 2021 +0000 @@ -0,0 +1,1 @@ +https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400 \ No newline at end of file