main.cpp

00001 //
00002 //  Text LCD Control Program
00003 //          Kenji Arai / JH1PJL
00004 //          March 7th,2010  Started
00005 //          March 27th,2010  
00006 //
00007 
00008 #include "mbed.h"
00009 #include "TextLCD.h"
00010 
00011 #define LINE_40_2
00012 
00013 #define BLINK_PERIOD 1.8        // LED on period (Initial data)
00014 #define END_PERIOD 0.0001       // Finish period
00015 
00016 DigitalOut myled1(LED1);        // Assign LED output port LED1 to LED4
00017 DigitalOut myled2(LED2);
00018 DigitalOut myled3(LED3);
00019 DigitalOut myled4(LED4);
00020 
00021 #ifdef LINE_40_2
00022 TextLCD lcd(p22, p28, p27, p26, p25, p24, p23, 40, 2); // rs,rw,e,d0,d1,d2,d3,40char's x 2 lines
00023 #else
00024 TextLCD lcd(p22, p28, p27, p26, p25, p24, p23, 16, 2); // rs,rw,e,d0,d1,d2,d3,16char's x 2 lines
00025 #endif
00026 
00027 int main() {
00028     float tim;
00029     long count;
00030     char buf[40];
00031 
00032     tim = BLINK_PERIOD;
00033     count = 0;
00034     lcd.cls();
00035     lcd.locate(0, 0);
00036 #ifdef LINE_40_2
00037     //          0         1         2         3        40
00038     lcd.printf("1234567890123456789012345678901234567890");
00039     lcd.locate(0, 1);
00040     lcd.printf("0987654321098765432109876543210987654321");
00041 #else
00042     //          0         1     
00043     lcd.printf("1234567890123456");
00044     lcd.locate(0, 1);
00045     lcd.printf("6543210987654321");
00046 #endif
00047     // If you have implemented the "Windows USB Serial Port Driver", you can use follows.
00048     // http://mbed.org/projects/handbook/wiki/WindowsSerialConfiguration
00049     printf("\r\n  Start LCD Test Program\r\n");
00050     while (1) {
00051         for (tim =BLINK_PERIOD; tim >=  END_PERIOD; tim /= 3) {
00052             myled1 = 1;
00053             wait(tim);
00054             myled1 = 0;
00055             myled2 = 1;
00056             wait(tim);
00057             myled2 = 0;
00058             myled3 = 1;
00059             wait(tim);
00060             myled3 = 0;
00061             myled4 = 1;
00062             wait(tim);
00063             myled4 = 0;
00064         }
00065         lcd.cls();
00066         lcd.locate(0, 0);   // 1st line top
00067 #ifdef LINE_40_2
00068         //                   1         2         3         4
00069         //          1234567890123456789012345678901234567890
00070         lcd.printf("This is a test program for checking LCD ");
00071         lcd.locate(0, 1);   // 2nd line top
00072         sprintf(buf," Current loop count number = %d ", count);
00073 #else
00074         //          1234567890123456
00075         lcd.printf("LCD test program");
00076         lcd.locate(0, 1);   // 2nd line top
00077         sprintf(buf,"loop # = %d", count);
00078 #endif
00079         lcd.printf(buf);
00080         printf(" Current loop count number = %d \r\n", count);
00081         count++;
00082     }
00083 }