MCU_SWM221/PWM/SimplPWM_ASYM/APP/main.c

#include "SWM221.h"


/* ʹ<>÷ǶԳ<C7B6><D4B3><EFBFBD><EFBFBD>Ķ<EFBFBD><C4B6><EFBFBD>ģʽ<C4A3><CABD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ռ<EFBFBD>ձȲ<D5B1><C8B2>䣬ʵ<E4A3AC><CAB5><EFBFBD><EFBFBD><EFBFBD>๦<EFBFBD><E0B9A6> */


int main(void)
{
	PWM_InitStructure  PWM_initStruct;
	
	SystemInit();
	
	PORT_Init(PORTA, PIN3, PORTA_PIN3_PWM0A,  0);
	PORT_Init(PORTA, PIN2, PORTA_PIN2_PWM0AN, 0);
	PORT_Init(PORTA, PIN6, PORTA_PIN6_PWM0B,  0);
	PORT_Init(PORTA, PIN7, PORTA_PIN7_PWM0BN, 0);
	
	PORT_Init(PORTA, PIN5, PORTA_PIN5_PWM1A,  0);
	PORT_Init(PORTA, PIN4, PORTA_PIN4_PWM1AN, 0);
	PORT_Init(PORTA, PIN1, PORTA_PIN1_PWM1B,  0);
	PORT_Init(PORTA, PIN0, PORTA_PIN0_PWM1BN, 0);
	
	PWM_initStruct.Mode = PWM_ASYM_CENTER_ALIGNED;
	PWM_initStruct.Clkdiv = 6;					//F_PWM = 60M/6 = 10M
	PWM_initStruct.Period = 10000;				//10M/(10000 + 10000) = 500Hz
	PWM_initStruct.HdutyA =  2500;				//(2500+2500)/(10000+10000) = 25%
	PWM_initStruct.HdutyA2 = 2500;
	PWM_initStruct.DeadzoneA = 50;
	PWM_initStruct.IdleLevelA = 0;
	PWM_initStruct.IdleLevelAN= 0;
	PWM_initStruct.OutputInvA = 0;
	PWM_initStruct.OutputInvAN= 0;
	PWM_initStruct.HdutyB =  7500;				//(7500+7500)/(10000+10000) = 75%
	PWM_initStruct.HdutyB2 = 7500;
	PWM_initStruct.DeadzoneB = 5;
	PWM_initStruct.IdleLevelB = 0;
	PWM_initStruct.IdleLevelBN= 0;
	PWM_initStruct.OutputInvB = 0;
	PWM_initStruct.OutputInvBN= 0;
	PWM_initStruct.UpOvfIE    = 0;
	PWM_initStruct.DownOvfIE  = 0;
	PWM_initStruct.UpCmpAIE   = 0;
	PWM_initStruct.DownCmpAIE = 0;
	PWM_initStruct.UpCmpBIE   = 0;
	PWM_initStruct.DownCmpBIE = 0;
	PWM_Init(PWM0, &PWM_initStruct);
	PWM_Init(PWM1, &PWM_initStruct);
	
	PWM_IntEn(PWM1, PWM_IT_OVF_UP);
	NVIC_EnableIRQ(PWM1_IRQn);
	
	PWM_Start(PWM0_MSK | PWM1_MSK);
	
	while(1==1)
	{
	}
}


void PWM1_Handler(void)
{
	static int dir = 0;
	static int n = 0;
	
	if(PWM_IntStat(PWM1, PWM_IT_OVF_UP))
	{
		PWM_IntClr(PWM1, PWM_IT_OVF_UP);
		
		if(++n == 2)
			n = 0;
		else
			return;
		
		PWMG->RELOADEN = 0x00;		// <20>رչ<D8B1><D5B9><EFBFBD><EFBFBD>Ĵ<EFBFBD><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ظ<EFBFBD><D8B8>£<EFBFBD><C2A3><EFBFBD>֤<EFBFBD><D6A4><EFBFBD>мĴ<D0BC><C4B4><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ٸ<EFBFBD><D9B8><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
		
		if(dir == 0)
		{
			if(PWM1->CMPA2 == 0)
			{
				PWM1->CMPA = 2500;
				PWM1->CMPA2 = 2500;
				PWM1->CMPB = 7500;
				PWM1->CMPB2 = 7500;
				
				dir = 1;
			}
			else
			{
				PWM1->CMPA += 250;		// ǰ<><C7B0><EFBFBD><EFBFBD><EFBFBD>ڵĸߵ<C4B8>ƽʱ<C6BD><CAB1><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
				PWM1->CMPA2 -= 250;		// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵĸߵ<C4B8>ƽʱ<C6BD><CAB1><EFBFBD><EFBFBD>С<EFBFBD><D0A1><EFBFBD>ߵ<EFBFBD>ƽ<EFBFBD><C6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
				PWM1->CMPB += 750;		// ע<>⣺<EFBFBD><E2A3BA><EFBFBD><EFBFBD>˵<EFBFBD><CBB5>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD>ڡ<EFBFBD><DAA1><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD> PWM <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>˵<EFBFBD>ģ<EFBFBD><C4A3><EFBFBD><EFBFBD>ϼ<EFBFBD><CFBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD>ڣ<EFBFBD><DAA3><EFBFBD><EFBFBD>¼<EFBFBD><C2BC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
				PWM1->CMPB2 -= 750;		// <20><>PWM<57><4D><EFBFBD><EFBFBD><EFBFBD>IJ<EFBFBD><C4B2><EFBFBD><EFBFBD>Ͽ<EFBFBD><CFBF><EFBFBD>ǰ<EFBFBD><C7B0><EFBFBD><EFBFBD><EFBFBD>ڷ<EFBFBD><DAB7><EFBFBD><EFBFBD><EFBFBD>Ӧ PWM <20>ߵ<EFBFBD>ƽ<EFBFBD><C6BD><EFBFBD>Ҳಿ<D2B2>֣<EFBFBD><D6A3><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڷ<EFBFBD><DAB7><EFBFBD><EFBFBD><EFBFBD>Ӧ PWM <20>ߵ<EFBFBD>ƽ<EFBFBD><C6BD><EFBFBD><EFBFBD><EFBFBD>ಿ<EFBFBD><E0B2BF>
			}
		}
		else
		{
			if(PWM1->CMPA == 0)
			{
				PWM1->CMPA = 2500;
				PWM1->CMPA2 = 2500;
				PWM1->CMPB = 7500;
				PWM1->CMPB2 = 7500;
				
				dir = 0;
			}
			else
			{
				PWM1->CMPA -= 250;		// ǰ<><C7B0><EFBFBD><EFBFBD><EFBFBD>ڵĸߵ<C4B8>ƽʱ<C6BD><CAB1><EFBFBD><EFBFBD>С
				PWM1->CMPA2 += 250;		// <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>ڵĸߵ<C4B8>ƽʱ<C6BD><CAB1><EFBFBD><EFBFBD><EFBFBD>ӣ<EFBFBD><D3A3>ߵ<EFBFBD>ƽ<EFBFBD><C6BD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
				PWM1->CMPB -= 750;
				PWM1->CMPB2 += 750;
			}
		}
		
		PWMG->RELOADEN = 0x3F;
	}
}