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76 lines
2.5 KiB
C
76 lines
2.5 KiB
C
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#include <stdlib.h>
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#include <compiler.h>
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#include <board.h>
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#include "conf_board.h"
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volatile uint32_t msTicks = 0; /* counts 1ms timeTicks */
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/*----------------------------------------------------------------------------
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SysTick_Handler
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*----------------------------------------------------------------------------*/
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void SysTick_Handler(void)
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{
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msTicks++; /* increment counter necessary in Delay() */
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}
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/*----------------------------------------------------------------------------
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delays number of tick Systicks (happens every 1 ms)
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*----------------------------------------------------------------------------*/
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__INLINE static void Delay(uint32_t dlyTicks)
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{
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uint32_t curTicks;
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curTicks = msTicks;
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while ((msTicks - curTicks) < dlyTicks);
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}
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/*----------------------------------------------------------------------------
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configer LED pins
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*----------------------------------------------------------------------------*/
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__INLINE static void LED_Config(void)
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{
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LED0_PIO->PIO_PER = LED0_MASK; /* Setup Pin PA19 for LED */
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LED0_PIO->PIO_OER = LED0_MASK;
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LED0_PIO->PIO_PUDR = LED0_MASK;
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}
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/*----------------------------------------------------------------------------
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Switch on LEDs
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*----------------------------------------------------------------------------*/
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__INLINE static void LED_On(uint32_t led)
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{
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LED0_PIO->PIO_CODR = led; /* Turn On LED */
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}
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/*----------------------------------------------------------------------------
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Switch off LEDs
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*----------------------------------------------------------------------------*/
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__INLINE static void LED_Off(uint32_t led)
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{
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LED0_PIO->PIO_SODR = led; /* Turn Off LED */
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}
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/*----------------------------------------------------------------------------
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MAIN function
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*----------------------------------------------------------------------------*/
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int main(void)
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{
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SystemInit();
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WDT->WDT_MR = WDT_MR_WDDIS;
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if (SysTick_Config(SystemCoreClock / 1000)) { /* Setup SysTick Timer for 1 msec interrupts */
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while (1); /* Capture error */
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}
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LED_Config();
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while(1) {
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LED_On (LED0_MASK); /* Turn on the LED. */
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Delay (1000); /* delay 100 Msec */
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LED_Off (LED0_MASK); /* Turn off the LED. */
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Delay (1000); /* delay 100 Msec */
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}
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}
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