Skool - ARM Hungary
Simple program to show how keypad polling works.
Dependencies: Skool_wkshp_lib2015 mbed
Revision 0:6ce746e9ad82, committed 2015-10-02
- Comitter:
- lvagasi
- Date:
- Fri Oct 02 22:05:45 2015 +0000
- Commit message:
- Simple program to show how keypad polling works.
Changed in this revision
diff -r 000000000000 -r 6ce746e9ad82 Skool_keypad.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/Skool_keypad.cpp Fri Oct 02 22:05:45 2015 +0000
@@ -0,0 +1,51 @@
+#include "mbed.h"
+#include "serial_lcd.h"
+#include "pc_uart.h"
+#include "keypad.h"
+
+PwmOut speaker(PB_4); // Speaker
+extern uint32_t Index;
+extern uint32_t new_key;
+
+int main()
+{
+ int key;
+ int prev_key = 0;
+
+ Init_keypad();
+ init_ser_lcd();
+ write_ser_lcd(0x80, false); // set DDRAM addr to 0x00, beginning of 1st line
+ wait_us(30);
+
+ speaker.period((float)(1.0f/432.0f));
+
+ while (1) {
+
+ key = Poll_keypad_full();
+ speaker = 0.5;
+ wait(0.1);
+ speaker = 0;
+ write_ser_lcd((char)key,true);
+ if (key == '*') {
+ if (prev_key == '*') {
+ write_ser_lcd(0xC0, false);
+ }
+ }
+ if (key == '#') {
+ if (prev_key == '#') {
+ write_ser_lcd(0x01, false); // Clear display
+ wait_us(1100);
+ write_ser_lcd(0x06, false); // Entry mode set
+ wait_us(30);
+ write_ser_lcd(0x0C, false); // Display ON, Cursor OFF, Blink OFF
+ wait_us(30);
+ write_ser_lcd(0x80, false); // set DDRAM addr to 0x00, beginning of 1st line
+ wait_us(30);
+ }
+ }
+
+ prev_key = key;
+
+ }
+}
+
diff -r 000000000000 -r 6ce746e9ad82 Skool_wkshp_lib2015.lib --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/Skool_wkshp_lib2015.lib Fri Oct 02 22:05:45 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/lvagasi/code/Skool_wkshp_lib2015/#68d1a8c4970b
diff -r 000000000000 -r 6ce746e9ad82 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Fri Oct 02 22:05:45 2015 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/34e6b704fe68 \ No newline at end of file