MSP432使用CCS模数转换(ADC)通用输入输出(GPIO)脉宽调制(PWM)通用异步接收器和发送器(UART)及其RTOS和...

时间：2022-12-24 09:30:00 pw传感器

示例#1

这个代码只会打开一个 P1.0 板载 LED，它是 MSP432 红色板载在寄存器级别 LED。

#include "msp.h"  void main(void) { 
          WDT_A->CTL = WDT_A_CTL_PW | WDT_A_CTL_HOLD;    P1->DIR |= BIT0;    P1->OUT &= ~(BIT0);    P1->SEL0 &= ~(BIT0);  P1->SEL1 &= ~(BIT0);   while (1)   { 
           P1->OUT = BIT0;       __delay_cycles(1000000);   } }

示例2

该程序将演示如何使用该程序 Timer_A 创建周期性任务。 Timer_A 以不同的速同 LED。

#include "msp.h"  uint8_t tic = 0;   void main(void) { 
          WDT_A->CTL = WDT_A_CTL_PW | WDT_A_CTL_HOLD;      P2->DIR |= BIT2;   P2->OUT &= ~(BIT2);    TIMER_A0->CTL = TIMER_A_CTL_TASSEL_2 | TIMER_A_CTL_MC_1;   TIMER_A0->CCR[0] = 60000 - 1;          TIMER_A0->CCTL[0] = TIMER_A_CCTLN_CCIE;           NVIC->ISER[0= 1 << ((TA0_0_IRQn)&31);

	
	__enable_irq();

	while (1)
	{ 
         
	}
}

void TA0_0_IRQHandler(void)
{ 
        

	if (tic++ >= 50)
	{ 
        					 
		P2->OUT ^= BIT2; 
		tic = 0;		 
	}
	TIMER_A0->CCTL[0] &= ~(TIMER_A_CCTLN_CCIFG); 
}

示例#3

该程序将演示如何使用 Timer_A 创建周期性任务。 Timer_A 以不同的速率切换 LED。


#include "msp.h"

uint8_t tic = 0; 

void main(void)
{ 
        
	WDT_A->CTL = WDT_A_CTL_PW | WDT_A_CTL_HOLD; 

	
	P2->DIR |= BIT2;	
	P2->OUT &= ~(BIT2); 

	
	TIMER_A0->CTL = TIMER_A_CTL_TASSEL_2 | TIMER_A_CTL_MC_1; 
	TIMER_A0->CCR[0] = 60000 - 1;							 
	TIMER_A0->CCTL[0] = TIMER_A_CCTLN_CCIE;					 

	NVIC->ISER[0] = 1 << ((TA0_0_IRQn)&31);

	__enable_irq();

	while (1)
	{ 
         
	}
}

void TA0_0_IRQHandler(void)
{ 
        
	
	if (tic++ >= 50)
	{ 
        					
		P2->OUT ^= BIT2; 
		tic = 0;		 
	}
	TIMER_A0->CCTL[0] &= ~(TIMER_A_CCTLN_CCIFG); 
}