Edwin Bosire
this program is based on the PS/2 keyboard library and the LCD library, the lcd display whatever input is coming from the PS/2 keyboard.
main.cpp@0:3774ff2f9a59, 2011-01-30 (annotated)
- Committer:
- edwinb
- Date:
- Sun Jan 30 15:05:39 2011 +0000
- Revision:
- 0:3774ff2f9a59
- Child:
- 1:2178724f96f1
Who changed what in which revision?
| User | Revision | Line number | New contents of line |
|---|---|---|---|
| edwinb | 0:3774ff2f9a59 | 1 | /* This is my first project with the mbed. I have just collected libraries together |
| edwinb | 0:3774ff2f9a59 | 2 | and came up with the mash up below. The keyboard input is received by both the |
| edwinb | 0:3774ff2f9a59 | 3 | terminal and the LCD connected to the mbed. |
| edwinb | 0:3774ff2f9a59 | 4 | the PS/2 wiring is as follows |
| edwinb | 0:3774ff2f9a59 | 5 | ====p22 clock, white=========== |
| edwinb | 0:3774ff2f9a59 | 6 | ====p21 signal, green========== |
| edwinb | 0:3774ff2f9a59 | 7 | ====yellow, orange +/- voltage= |
| edwinb | 0:3774ff2f9a59 | 8 | */ |
| edwinb | 0:3774ff2f9a59 | 9 | #include "mbed.h" |
| edwinb | 0:3774ff2f9a59 | 10 | #include "PS2ASCII.h" |
| edwinb | 0:3774ff2f9a59 | 11 | #include "TextLCD.h" |
| edwinb | 0:3774ff2f9a59 | 12 | |
| edwinb | 0:3774ff2f9a59 | 13 | TextLCD lcd(p15, p16, p17, p18, p19, p20); // rs, e, d4-d7 |
| edwinb | 0:3774ff2f9a59 | 14 | PS2ASCII myKeyboard(p22, p21); |
| edwinb | 0:3774ff2f9a59 | 15 | DigitalOut mLED(LED1); |
| edwinb | 0:3774ff2f9a59 | 16 | DigitalOut mLED2(LED2);// not needed for now |
| edwinb | 0:3774ff2f9a59 | 17 | int i=0; |
| edwinb | 0:3774ff2f9a59 | 18 | char *buffer; |
| edwinb | 0:3774ff2f9a59 | 19 | int main() { |
| edwinb | 0:3774ff2f9a59 | 20 | printf("the program has started"); |
| edwinb | 0:3774ff2f9a59 | 21 | printf("=========================================\n "); |
| edwinb | 0:3774ff2f9a59 | 22 | while (1) { |
| edwinb | 0:3774ff2f9a59 | 23 | unsigned char symbol = myKeyboard.getChar(); |
| edwinb | 0:3774ff2f9a59 | 24 | if (myKeyboard.E0flag() == true) { //is the make code one or two bytes long? |
| edwinb | 0:3774ff2f9a59 | 25 | printf(" E0 "); |
| edwinb | 0:3774ff2f9a59 | 26 | mLED2=1; |
| edwinb | 0:3774ff2f9a59 | 27 | } else { |
| edwinb | 0:3774ff2f9a59 | 28 | wait(0.2); |
| edwinb | 0:3774ff2f9a59 | 29 | printf("%c", symbol); |
| edwinb | 0:3774ff2f9a59 | 30 | lcd.locate(0,0); |
| edwinb | 0:3774ff2f9a59 | 31 | lcd.printf("Keyboard: \n"); |
| edwinb | 0:3774ff2f9a59 | 32 | |
| edwinb | 0:3774ff2f9a59 | 33 | if (symbol) { |
| edwinb | 0:3774ff2f9a59 | 34 | |
| edwinb | 0:3774ff2f9a59 | 35 | i++; |
| edwinb | 0:3774ff2f9a59 | 36 | buffer = new char[16]; //create a char array to hold 16 char |
| edwinb | 0:3774ff2f9a59 | 37 | buffer[i]= symbol; //traverse the array one step at a time |
| edwinb | 0:3774ff2f9a59 | 38 | //lcd.cls(); |
| edwinb | 0:3774ff2f9a59 | 39 | lcd.locate(i,1); |
| edwinb | 0:3774ff2f9a59 | 40 | lcd.printf("%c", buffer[i]); //print the char array |
| edwinb | 0:3774ff2f9a59 | 41 | printf(" \t"); |
| edwinb | 0:3774ff2f9a59 | 42 | //wait(0.9); |
| edwinb | 0:3774ff2f9a59 | 43 | if (i==16) { |
| edwinb | 0:3774ff2f9a59 | 44 | lcd.cls(); |
| edwinb | 0:3774ff2f9a59 | 45 | i=0; |
| edwinb | 0:3774ff2f9a59 | 46 | delete [] buffer; |
| edwinb | 0:3774ff2f9a59 | 47 | |
| edwinb | 0:3774ff2f9a59 | 48 | x |
| edwinb | 0:3774ff2f9a59 | 49 | } |
| edwinb | 0:3774ff2f9a59 | 50 | //anytime a key is pressed one of LEDs light up |
| edwinb | 0:3774ff2f9a59 | 51 | mLED=1; |
| edwinb | 0:3774ff2f9a59 | 52 | wait(0.04); |
| edwinb | 0:3774ff2f9a59 | 53 | mLED=0; |
| edwinb | 0:3774ff2f9a59 | 54 | } |
| edwinb | 0:3774ff2f9a59 | 55 | } |
| edwinb | 0:3774ff2f9a59 | 56 | } |
| edwinb | 0:3774ff2f9a59 | 57 | } |