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diff --git a/F2024/coe718/labs/lab1/Boards/Keil/MCB1700/Blinky_ULp/LED.c b/F2024/coe718/labs/lab1/Boards/Keil/MCB1700/Blinky_ULp/LED.c
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+++ b/F2024/coe718/labs/lab1/Boards/Keil/MCB1700/Blinky_ULp/LED.c
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+/*----------------------------------------------------------------------------

+

+ * Name:    LED.c

+ * Purpose: low level LED functions

+ * Note(s):

+ *----------------------------------------------------------------------------

+ * This file is part of the uVision/ARM development tools.

+ * This software may only be used under the terms of a valid, current,

+ * end user licence from KEIL for a compatible version of KEIL software

+ * development tools. Nothing else gives you the right to use this software.

+ *

+ * This software is supplied "AS IS" without warranties of any kind.

+ *

+ * Copyright (c) 2009-2011 Keil - An ARM Company. All rights reserved.

+ *----------------------------------------------------------------------------*/

+

+#include "LPC17xx.h"                         /* LPC17xx definitions           */

+#include "LED.h"

+

+const unsigned long led_mask[] = { 1UL<<28, 1UL<<29, 1UL<<31, 1UL<< 2,

+                                   1UL<< 3, 1UL<< 4, 1UL<< 5, 1UL<< 6 };

+/*----------------------------------------------------------------------------

+  initialize LED Pins

+ *----------------------------------------------------------------------------*/

+

+void LED_Init (void) {

+

+  LPC_SC->PCONP     |= (1 << 15);            /* enable power to GPIO & IOCON  */

+

+  LPC_GPIO1->FIODIR |= 0xB0000000;           /* LEDs on PORT1 are output      */

+  LPC_GPIO2->FIODIR |= 0x0000007C;           /* LEDs on PORT2 are output      */

+}

+

+/*----------------------------------------------------------------------------

+  Function that turns on requested LED

+ *----------------------------------------------------------------------------*/

+void LED_On (unsigned int num) {

+

+  if (num < 3) LPC_GPIO1->FIOPIN |=  led_mask[num];

+  else         LPC_GPIO2->FIOPIN |=  led_mask[num];

+}

+

+/*----------------------------------------------------------------------------

+  Function that turns off requested LED

+ *----------------------------------------------------------------------------*/

+void LED_Off (unsigned int num) {

+

+  if (num < 3) LPC_GPIO1->FIOPIN &= ~led_mask[num];

+  else         LPC_GPIO2->FIOPIN &= ~led_mask[num];

+}

+

+/*----------------------------------------------------------------------------

+  Function that outputs value to LEDs

+ *----------------------------------------------------------------------------*/

+void LED_Out(unsigned int value) {

+  int i;

+

+  for (i = 0; i < LED_NUM; i++) {

+    if (value & (1<<i)) {

+      LED_On (i);

+    } else {

+      LED_Off(i);

+    }

+  }

+}