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/*----------------------------------------------------------------------------
* Name: Blinky.c
* Purpose: LED Flasher
* Note(s): __USE_LCD - enable Output on LCD, uncomment #define in code to use
* for demo (NOT for analysis purposes)
*----------------------------------------------------------------------------
* Copyright (c) 2008-2011 Keil - An ARM Company.
* Name: Anita Tino
*----------------------------------------------------------------------------*/
#include "Blinky.h"
#include <stdio.h>
#include "Board_Joystick.h"
#include "GLCD.h"
#include "LED.h"
#include "LPC17xx.h"
#define __FI 1 /* Font index 16x24 */
#define __USE_LCD 0 /* Uncomment to use the LCD */
// ITM Stimulus Port definitions for printf //////////////////
#define ITM_Port8(n) (*((volatile unsigned char *)(0xE0000000 + 4 * n)))
#define ITM_Port16(n) (*((volatile unsigned short *)(0xE0000000 + 4 * n)))
#define ITM_Port32(n) (*((volatile unsigned long *)(0xE0000000 + 4 * n)))
#define DEMCR (*((volatile unsigned long *)(0xE000EDFC)))
#define TRCENA 0x01000000
struct __FILE {
int handle;
};
FILE __stdout;
FILE __stdin;
int fputc(int ch, FILE *f) {
if (DEMCR & TRCENA) {
while (ITM_Port32(0) == 0);
ITM_Port8(0) = ch;
}
return (ch);
}
/* Import external variables from IRQ.c file */
extern uint8_t clock_ms;
int main(void) {
LED_Init(); /* LED Initialization */
Joystick_Initialize();
#ifdef __USE_LCD
GLCD_Init(); /* Initialize graphical LCD (if enabled */
GLCD_Clear(White); /* Clear graphical LCD display */
GLCD_SetBackColor(Blue);
GLCD_SetTextColor(Yellow);
GLCD_DisplayString(0, 0, __FI, " COE718 Lab 1 ");
GLCD_SetTextColor(White);
GLCD_DisplayString(1, 0, __FI, " Blinky.c ");
GLCD_DisplayString(2, 0, __FI, " Try the joystick! ");
GLCD_SetBackColor(White);
GLCD_SetTextColor(Blue);
GLCD_DisplayString(6, 0, __FI, "Direction:");
#endif
// SystemCoreClockUpdate();
SysTick_Config(SystemCoreClock / 100);
const char *joystick = "NONE ";
while (1) {
const uint32_t state = Joystick_GetState();
if (state & JOYSTICK_LEFT) {
joystick = "LEFT ";
LED_Out(1);
} else if (state & JOYSTICK_RIGHT) {
joystick = "RIGHT";
LED_Out(2);
} else if (state & JOYSTICK_DOWN) {
joystick = "DOWN ";
LED_Out(3);
} else if (state & JOYSTICK_UP) {
joystick = "UP ";
LED_Out(4);
} else if (state & JOYSTICK_CENTER) {
joystick = "PRESS";
LED_Out(5);
}
#ifdef __USE_LCD
GLCD_SetTextColor(Green);
GLCD_DisplayString(6, 11, __FI, (unsigned char *)joystick);
#endif
/* Print message with AD value every 10 ms */
if (clock_ms) {
clock_ms = 0;
printf("Joystick: %s\r\n", joystick);
}
}
}
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