Kenji Arai
This is a test program for TEXT LCD (HD44780) , 40 char x 2 lines.
Revision 0:171b4ca846a6, committed 2010-03-27
- Comitter:
- kenjiArai
- Date:
- Sat Mar 27 07:05:32 2010 +0000
- Commit message:
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 |
diff -r 000000000000 -r 171b4ca846a6 main.cpp
--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/main.cpp Sat Mar 27 07:05:32 2010 +0000
@@ -0,0 +1,83 @@
+//
+// Text LCD Control Program
+// Kenji Arai / JH1PJL
+// March 7th,2010 Started
+// March 27th,2010
+//
+
+#include "mbed.h"
+#include "TextLCD.h"
+
+#define LINE_40_2
+
+#define BLINK_PERIOD 1.8 // LED on period (Initial data)
+#define END_PERIOD 0.0001 // Finish period
+
+DigitalOut myled1(LED1); // Assign LED output port LED1 to LED4
+DigitalOut myled2(LED2);
+DigitalOut myled3(LED3);
+DigitalOut myled4(LED4);
+
+#ifdef LINE_40_2
+TextLCD lcd(p22, p28, p27, p26, p25, p24, p23, 40, 2); // rs,rw,e,d0,d1,d2,d3,40char's x 2 lines
+#else
+TextLCD lcd(p22, p28, p27, p26, p25, p24, p23, 16, 2); // rs,rw,e,d0,d1,d2,d3,16char's x 2 lines
+#endif
+
+int main() {
+ float tim;
+ long count;
+ char buf[40];
+
+ tim = BLINK_PERIOD;
+ count = 0;
+ lcd.cls();
+ lcd.locate(0, 0);
+#ifdef LINE_40_2
+ // 0 1 2 3 40
+ lcd.printf("1234567890123456789012345678901234567890");
+ lcd.locate(0, 1);
+ lcd.printf("0987654321098765432109876543210987654321");
+#else
+ // 0 1
+ lcd.printf("1234567890123456");
+ lcd.locate(0, 1);
+ lcd.printf("6543210987654321");
+#endif
+ // If you have implemented the "Windows USB Serial Port Driver", you can use follows.
+ // http://mbed.org/projects/handbook/wiki/WindowsSerialConfiguration
+ printf("\r\n Start LCD Test Program\r\n");
+ while (1) {
+ for (tim =BLINK_PERIOD; tim >= END_PERIOD; tim /= 3) {
+ myled1 = 1;
+ wait(tim);
+ myled1 = 0;
+ myled2 = 1;
+ wait(tim);
+ myled2 = 0;
+ myled3 = 1;
+ wait(tim);
+ myled3 = 0;
+ myled4 = 1;
+ wait(tim);
+ myled4 = 0;
+ }
+ lcd.cls();
+ lcd.locate(0, 0); // 1st line top
+#ifdef LINE_40_2
+ // 1 2 3 4
+ // 1234567890123456789012345678901234567890
+ lcd.printf("This is a test program for checking LCD ");
+ lcd.locate(0, 1); // 2nd line top
+ sprintf(buf," Current loop count number = %d ", count);
+#else
+ // 1234567890123456
+ lcd.printf("LCD test program");
+ lcd.locate(0, 1); // 2nd line top
+ sprintf(buf,"loop # = %d", count);
+#endif
+ lcd.printf(buf);
+ printf(" Current loop count number = %d \r\n", count);
+ count++;
+ }
+}
diff -r 000000000000 -r 171b4ca846a6 mbed.bld --- /dev/null Thu Jan 01 00:00:00 1970 +0000 +++ b/mbed.bld Sat Mar 27 07:05:32 2010 +0000 @@ -0,0 +1,1 @@ +http://mbed.org/users/mbed_official/code/mbed/builds/49a220cc26e0