#include "interrupt_interface.h"
#include "cpu.h"
#include "wtd.h"

static __IO uint32_t g_tick = 0;

static void Interrupt()
{
	g_tick = 1;
}

/*!
* @brief 时钟节拍
* @param [in] void
* @note null
*/
void TickTime()
{
	// WatchDogService();
	while (!g_tick)
		;
	g_tick = 0;
}

/*!
* @brief 时钟配置
* @param [in] void
* @note null
*/
void CLK_Config(void)
{
	/* Initialization of the clock */
	/* Clock divider to HSI/1 */
	CLK_HSIPrescalerConfig(CLK_PRESCALER_HSIDIV1);
	// CLK_ClockSwitchConfig(CLK_SWITCHMODE_AUTO, CLK_SOURCE_HSE, DISABLE, CLK_CURRENTCLOCKSTATE_DISABLE);

	CLK_PeripheralClockConfig(CLK_PERIPHERAL_TIMER1, ENABLE);
	CLK_PeripheralClockConfig(CLK_PERIPHERAL_TIMER2, ENABLE);
	CLK_PeripheralClockConfig(CLK_PERIPHERAL_ADC, ENABLE);
	CLK_PeripheralClockConfig(CLK_PERIPHERAL_UART2, ENABLE);
}

/*!
 * @brief 定时器4配置
 * @param [in] void
 * @note null
 */
static void TIM4_Config(void)
{
	/* TIM4 configuration:
	 - TIM4CLK is set to 16 MHz, the TIM4 Prescaler is equal to 128 so the TIM1 counter
	 clock used is 16 MHz / 128 = 125 000 Hz
	 - With 125 000 Hz we can generate time base:
	 max time base is 2.048 ms if TIM4_PERIOD = 255 --> (255 + 1) / 125000 = 2.048 ms
	 min time base is 0.016 ms if TIM4_PERIOD = 1   --> (  1 + 1) / 125000 = 0.016 ms
	 - In this example we need to generate a time base equal to 1 ms
	 so TIM4_PERIOD = (0.001 * 125000 - 1) = 124 */

	/* Time base configuration */
	TIM4_DeInit();
	TIM4_TimeBaseInit(TIM4_PRESCALER_128, 124);
	/* Clear TIM4 update flag */
	TIM4_ClearFlag(TIM4_FLAG_UPDATE);
	/* Enable update interrupt */
	TIM4_ITConfig(TIM4_IT_UPDATE, ENABLE);
	TIM4_Cmd(ENABLE);
}

void OSTimer_Config(void)
{
	TIM4_Config();
	RegInterruptFunc(Interrupt, 4);
}