LetAllLinesOfCodeSpeak

最新推荐文章于 2024-08-25 09:00:00 发布

jiangyiweijyw

最新推荐文章于 2024-08-25 09:00:00 发布

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分类专栏： LetAllLinesOfCodeSpeak 文章标签： LetAllLinesOfCodeSpeak

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/******************************************************
*Author:JYW
*Time:2019_03_31
*Describe:使用T1对Led进行PWM代码学习练习
******************************/
#include<ioCC2530.h>

typedef unsigned char uchar;
typedef unsigned int uint;

#define LED1 P1_0
#define KEY1 P0_1

uchar KeyCount = 0;

void InitLed()
{
P1DIR |= 0x01;
LED1 = 1;

}

uchar KeyEvent()
{
   static uchar KeyBefSta = 1;
   static uchar KeyCurSta = 0;
   KeyCurSta = KEY1;
   if(KeyBefSta != KeyCurSta)
   {
       if(1 == KeyBefSta)
       {
           KeyCount++;
           if(KeyCount >= 4)
           {
               Keycount = 0;
           }

       }
       KeyBefSta = KeyCurSta;
   }
   return KeyCount;
}

void InitT1(uchar pwm)
{
   CLKCONCMD &= ~0x40;
   while(CLKCONSTA & 0x40);
   CLKCONCMD &= ~0x07;
   CLKCONCMD |= 0x38;

   PERCFG |= 0x40;
   P2SEL &= ~0x01;
   P2DIR |= 0xC0;

   P1DIR |= 0xff;
   P1SEL |= 0x01;

   T1CC2H = 0x00;
   T1CC2L = pwm;

   T1CC0H = 0x00;
   T1CC0L = 0xff;
   T1CCTL2 = 0x1c;
   T1CTL = 0x02;

void main(void)
{
InitLed();
InitT1(0x33);
while(1)
{
switch(KeyEvent())
{
case 0:InitT1(0x33);break;//20%
case 1:InitT1(0x7F);break;//50%
case 2:InitT1(0xCC);break;//80%
case 3:InitT1(0xFF);break;//100%
default: break;
}

}
}