rt-thread/bsp/CME_M7/StdPeriph_Driver/src/cmem7_tim.c

/**
	*****************************************************************************
	* @file     cmem7_tim.c
	*
	* @brief    CMEM7 timer source file
	*
	*
	* @version  V1.0
	* @date     3. September 2013
	*
	* @note               
	*           
	*****************************************************************************
	* @attention
	*
	* THE PRESENT FIRMWARE WHICH IS FOR GUIDANCE ONLY AIMS AT PROVIDING CUSTOMERS
	* WITH CODING INFORMATION REGARDING THEIR PRODUCTS IN ORDER FOR THEM TO SAVE
	* TIME. AS A RESULT, CAPITAL-MICRO SHALL NOT BE HELD LIABLE FOR ANY DIRECT, 
	* INDIRECT OR CONSEQUENTIAL DAMAGES WITH RESPECT TO ANY CLAIMS ARISING
	* FROM THE CONTENT OF SUCH FIRMWARE AND/OR THE USE MADE BY CUSTOMERS OF THE
	* CODING INFORMATION CONTAINED HEREIN IN CONNECTION WITH THEIR PRODUCTS.
	*
	* <h2><center>&copy; COPYRIGHT 2013 Capital-micro </center></h2>
	*****************************************************************************
	*/
	
#include "cmem7_tim.h"

static uint32_t tim_GetClock() {
	return SYSTEM_CLOCK_FREQ / (1 << (GLOBAL_CTRL->CLK_SEL_0_b.TIMER_CLK + 1));
}

void TIM_Init(TIMER0_Type* Timx, uint16_t Ms) {
	assert_param(IS_TIM_ALL_PERIPH(Timx));
	
	Timx->CTRL_b.EN = FALSE;
	Timx->LEN = tim_GetClock() / 1000 * Ms;
	Timx->TYPE_b.SIGNLE_SHOT = TRUE;
}

void TIM_EnableInt(TIMER0_Type* Timx, BOOL Enable) {
	assert_param(IS_TIM_ALL_PERIPH(Timx));
	
	if (Enable == TRUE) {
	  Timx->INT_EN_b.EN_REVERSE = FALSE;
	} else {
		Timx->INT_EN_b.EN_REVERSE = TRUE;
	}
}

BOOL TIM_GetIntStatus(TIMER0_Type* Timx) {
	assert_param(IS_TIM_ALL_PERIPH(Timx));
	
	return (Timx->INT_STA_b.STA ? TRUE : FALSE);
}

void TIM_ClearInt(TIMER0_Type* Timx) {
	assert_param(IS_TIM_ALL_PERIPH(Timx));
	
	Timx->INT_STA_b.STA = 1;
}

void TIM_Enable(TIMER0_Type* Timx, BOOL Enable) {
	assert_param(IS_TIM_ALL_PERIPH(Timx));
	
	Timx->CTRL_b.EN = Enable;
}

BOOL TIM_IsOverflow(TIMER0_Type* Timx) {
	assert_param(IS_TIM_ALL_PERIPH(Timx));
	
	return (Timx->CNT == 0) ? TRUE : FALSE;
}

uint32_t TIM_GetCounter(TIMER0_Type* Timx) {
	assert_param(IS_TIM_ALL_PERIPH(Timx));
	
	return Timx->CNT;
}