main.c

来自「STR71X系列ARM微控制器原理与实践配套光盘」· C语言 代码 · 共 45 行

#include "71x_lib.h"
#include "LED.h"

void Main(void)
{
	#ifdef DEBUG
		debug();
	#endif

	RCCU_MCLKConfig(RCCU_DEFAULT);					// Configure MCLK = RCLK
	RCCU_FCLKConfig(RCCU_RCLK_2);					// Configure FCLK = RCLK / 2
	RCCU_PCLKConfig(RCCU_RCLK_2);					// Configure PCLK = RCLK / 4
	RCCU_PLL1Config(RCCU_Mul_12 , RCCU_Div_2) ;		// Configure the PLL1 ( * 12 , / 2 )
	while(RCCU_FlagStatus(RCCU_PLL1_LOCK) == RESET);// Wait PLL to lock
	RCCU_RCLKSourceConfig (RCCU_PLL1_Output) ;		// Select PLL1_Output as RCLK clock
	// at this step the CKOUT signal should be equal to 48 Mhz

	LED_Init();

	TIM_Init(TIM0);
	EIC_Init();

	TIM_PrescalerConfig(TIM0, 182);
	TIM_ITConfig(TIM0, TIM_TO_IT, ENABLE);

	EIC_FIQChannelConfig(T0TIMI_FIQChannel, ENABLE);
	EIC_FIQConfig(ENABLE);

	TIM_CounterConfig(TIM0, TIM_START);

	RTC_PrescalerConfig(16384);
	RTC_FlagClear(RTC_OWIR);
	RTC_FlagClear(RTC_AIR);
	RTC_FlagClear(RTC_SIR);
	RTC_FlagClear(RTC_GIR);

	EIC_IRQChannelConfig(RTC_IRQChannel, ENABLE);
	EIC_IRQChannelPriorityConfig(RTC_IRQChannel, 1);
	EIC_IRQConfig(ENABLE);

	RTC_ITConfig(RTC_SIT | RTC_GIT, ENABLE);

	while(1);
}