Lab exercise 2.3.1

Dependencies:   mbed C12832

Files at this revision

API Documentation at this revision

Comitter:
ciaranom
Date:
Sat Jun 20 11:15:38 2020 +0000
Commit message:
Lab exercise 2.3

Changed in this revision

C12832.lib Show annotated file Show diff for this revision Revisions of this file
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
diff -r 000000000000 -r 674c09240a19 C12832.lib
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/C12832.lib	Sat Jun 20 11:15:38 2020 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/askksa12543/code/C12832/#990d5eec2ef6
diff -r 000000000000 -r 674c09240a19 main.cpp
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp	Sat Jun 20 11:15:38 2020 +0000
@@ -0,0 +1,49 @@
+#include "mbed.h"
+#include "C12832.h"
+
+InterruptIn joystickcenter(p14);
+InterruptIn button(p9);
+DigitalOut led(LED1);
+DigitalOut flash(LED4);
+C12832 lcd(p5, p7, p6, p8, p11);
+Timer debounce;
+
+int x; 
+
+
+void flip() {
+ lcd.cls();
+ led = !led; // toggles the led when the joystick button is pressed.
+ x = 1;
+ //wait(0.5);
+
+ if (debounce.read_ms() < 10000){
+  //lcd.locate(0,0);
+    //lcd.printf("Debounce value: %.3f  \n"+ debounce.read_ms());
+ }
+     debounce.reset();
+}
+int main() {
+ 
+ joystickcenter.rise(&flip); // attach the function address to the rising edge
+ button.mode(PullUp); // With this, no external pullup resistor needed
+ button.rise(&flip); // attach the function address to the rising edge
+ 
+ while(1) { // wait around, interrupts will interrupt this!
+ flash = !flash; // turns LED4 on if off, off if on
+ wait(0.25); // the instruction to wait for a quarter-second
+ if (x==1)
+ {
+     lcd.printf("Variable set");
+     x=0;
+}
+ }
+ }
+
+
+//What's needed is a global variable with its own name, for example:
+//int x;
+
+//Now, you set x to 1 inside the flip() function. In main(), inside the infinite loop starting with while (1) { , you check whether x ==1 and if it is, you print to the LCD and set x to 0.
+
+//(Be very careful about this. x=1 sets x to 1. x==1 compares x to 1.)
\ No newline at end of file
diff -r 000000000000 -r 674c09240a19 mbed.bld
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mbed.bld	Sat Jun 20 11:15:38 2020 +0000
@@ -0,0 +1,1 @@
+https://os.mbed.com/users/mbed_official/code/mbed/builds/65be27845400
\ No newline at end of file