#include "STC15F2K60S2.H"
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void CCP_PWMInit(void) //³õʼ»¯PCA£¨Programmable Counter Array£©Ä£¿é×÷ΪPWMÊä³ö
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{
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CCON = 0; //PCA¿ØÖƼĴæÆ÷³õʼ»¯(xx-- -xxx£¬0000 0000£º¶¼ÊÇÇåÁã¾ÍÍêÊÂÁË)
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CMOD = 0x02; //PCA¹¤×÷ģʽ¼Ä´æÆ÷(x--- xxxx£¬0000 0010£ºÏµÍ³Ê±ÖÓ£¬SYSclk/2)
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CL = 0; //PCA¼ÆÊýÆ÷µÍ8λÇåÁã
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CH = 0; //PCA¼ÆÊýÆ÷¸ß8λÇåÁã
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AUXR1 = 0x00; //¸¨Öú¼Ä´æÆ÷1ÇåÁ㣬³õʼ»¯
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PCA_PWM0 = 0x00; //PCAµÄPWM¼Ä´æÆ÷(xx-- --xx£¬0000 0000£º¹¤×÷ÓÚ8 bit PWM)
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CCAP0H = 0x80; //±È½Ï/²¶»ñ¼Ä´æÆ÷0¸ß8λÉèÖÃΪ 0x80£¬±íʾPWM1µÄÖØ×°ÔØÖµµÄ¸ß8λ
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CCAP0L = 0x80; //±È½Ï/²¶»ñ¼Ä´æÆ÷0µÍ8λÉèÖÃΪ 0x80£¬±íʾPWM1µÄÖØ×°ÔØÖµµÄµÍ8λ
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CCAPM0 = 0x42; //±È½Ï/²¶»ñ¹¤×÷ģʽ¼Ä´æÆ÷0(-xxx xxxx£¬0100 0010£º±È½ÏÆ÷´ò¿ª£¬CCP0½ÅÓÃ×÷PWMÊä³ö)
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AUXR1 = 0x00;
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PCA_PWM1 = 0x00;
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CCAP1H = 0x80; //256-x/256 = pulse width
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CCAP1L = 0x80;
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CCAPM1 = 0x42; //±È½ÏÆ÷´ò¿ª£¬CCP1½ÅÓÃ×÷PWMÊä³ö
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CR = 1; //Æô¶¯PCA¼ÆÊýÆ÷
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}
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void PWMInit(void)
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{
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//¸ÃоƬÔöÇ¿ÐÍ PWM Êä³ö¶Ë¿Ú£º1.6 1.7 2.1 2.2 2.3 3.7
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P1M0 &= ~0xc0; //½« 0011 1111 Óë P1M0 ½øÐÐλÓëÔËË㣬ÇåÁã P1M0 µÄ¸ß2룬½áºÏP1M1£¬P1.6 P1.7Òý½ÅÅäÖøü¸ÄΪ׼˫Ïò¿Ú£¬ÆäËû½Å¿ªÂ©
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//P1M0 &= 0x3f
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P1M1 &= ~0xc0; //P1M1_P1M0״̬(ͬһλÖÃÁ½¸ö¼Ä´æÆ÷µÄÊýÖµ×éºÏ)£º00£º×¼Ë«Ïò£»01£ºÍÆÍ죻10£º¸ß×裻11£º¿ªÂ©
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P1 &= ~0xc0; //resetP1.6/.P1.7
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P2M0 &= ~0x0e; //1111 0001
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P2M1 &= ~0x0e;
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P2 &= ~0x0e;
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P3M0 &= ~0x80; //0111 1111
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P3M1 &= ~0x80;
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P3 &= ~0x80;
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P_SW2 |= 0x80; //ʹÄÜ·ÃÎÊXSFR
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PWMCFG = 0x3f; //ÅäÖÃPWMµÄ³õʼµçƽΪ high
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PWMCKS = 0x00; //Ñ¡ÔñPWMµÄʱÖÓFosc/(0+1) 22118400/1024=21.6k
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//PWMCKS = 0x07; //Ñ¡ÔñPWMµÄʱÖÓFosc/(8) 22118400/1000/8=2.76k
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PWMC = CYCLE; //ÉèÖÃPWMµÄÖÜÆÚ
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//-----PWM2--------------------------------
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PWM2T1 = 0x0001; //ÉèÖÃPWMµÚ1´Î·×ªµÄPWM¼ÆÊý
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PWM2T2 = CYCLE * 2L / 100; //ÉèÖÃPWMµÚ2´Î·×ªµÄPWM¼ÆÊý
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//Õ¼¿Õ±È(PWM2T2-PWM2T1)/PWMC
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PWM2CR = 0x00; //Ñ¡ÔñPWM2Êä³öµ½P3.7,²»Ê¹ÄÜPWM2ÖжÏ
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//-------PWM3-----------------------------
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PWM3T1 = 0x0001; //ÉèÖÃPWMµÚ1´Î·×ªµÄPWM¼ÆÊý
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PWM3T2 = CYCLE * 2L / 100; //ÉèÖÃPWMµÚ2´Î·×ªµÄPWM¼ÆÊý
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//Õ¼¿Õ±È(PWM2T2-PWM2T1)/PWMC
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PWM3CR = 0x00; //Ñ¡ÔñPWM2Êä³öµ½P2.1,²»Ê¹ÄÜPWM2ÖжÏ
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//--------pwm4----------------------------------
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PWM4T1 = 0x0001; //ÉèÖÃPWMµÚ1´Î·×ªµÄPWM¼ÆÊý
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PWM4T2 = CYCLE * 2L / 100; //ÉèÖÃPWMµÚ2´Î·×ªµÄPWM¼ÆÊý
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//Õ¼¿Õ±È(PWM2T2-PWM2T1)/PWMC
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PWM4CR = 0x00; //Ñ¡ÔñPWM2Êä³öµ½P2.2,²»Ê¹ÄÜPWM2ÖжÏ
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//--------pwm5----------------------------------
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PWM5T1 = 0x0001; //ÉèÖÃPWMµÚ1´Î·×ªµÄPWM¼ÆÊý
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PWM5T2 = CYCLE * 2L / 100; //ÉèÖÃPWMµÚ2´Î·×ªµÄPWM¼ÆÊý
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//Õ¼¿Õ±È(PWM2T2-PWM2T1)/PWMC
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PWM5CR = 0x00; //Ñ¡ÔñPWM2Êä³öµ½P2.3,²»Ê¹ÄÜPWM2ÖжÏ
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//--------pwm6----------------------------------
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PWM6T1 = 0x0001; //ÉèÖÃPWMµÚ1´Î·×ªµÄPWM¼ÆÊý
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PWM6T2 = CYCLE * 2L / 100; //ÉèÖÃPWMµÚ2´Î·×ªµÄPWM¼ÆÊý
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//Õ¼¿Õ±È(PWM2T2-PWM2T1)/PWMC
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PWM6CR = 0x00; //Ñ¡ÔñPWM2Êä³öµ½P1.6,²»Ê¹ÄÜPWM2ÖжÏ
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//--------pwm7----------------------------------
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PWM7T1 = 0x0001; //ÉèÖÃPWMµÚ1´Î·×ªµÄPWM¼ÆÊý
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PWM7T2 = CYCLE * 2L / 100; //ÉèÖÃPWMµÚ2´Î·×ªµÄPWM¼ÆÊý
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//Õ¼¿Õ±È(PWM2T2-PWM2T1)/PWMC
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PWM7CR = 0x00; //Ñ¡ÔñPWM2Êä³öµ½P1.7,²»Ê¹ÄÜPWM2ÖжÏ
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PWMCR = 0x3f; //ʹÄÜPWM2.3.4.5.6.7,6·ÐźÅÊä³ö
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PWMCR |= 0x80; //ʹÄÜPWMÄ£¿é
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//PWMCR |= 0x40; //ʹÄÜPWM¹éÁãÖжÏ
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P_SW2 &= ~0x80;
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}
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//----------pwm2/3/4/5-------------------------------------------------------------------
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void pwm2( unsigned short Wide) //PWM2
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{
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if((Wide==0)||(Wide==1))
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{
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P_SW2 |= 0x80; //ÉèÖø¨Öú¼Ä´æÆ÷2µÄλ7Ϊ1£¬½«PWM2Òý½ÅÇл»µ½P1.3
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PWMCR &=~0x01; //PWM¿ØÖƼĴæÆ÷µÄλ0ÇåÁ㣬¼´½ûÓÃPWM2
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PWM2=1; //PWM¿ØÖƼĴæÆ÷µÄλ0ÇåÁ㣬¼´½ûÓÃPWM2
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P_SW2 &=~0x80; //Çå³ý¸¨Öú¼Ä´æÆ÷2µÄλ7£¬½«PWM2Òý½ÅÇл»»ØÔÀ´µÄλÖÃ
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}
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else if (Wide==CYCLE)
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{
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PWMCR &=~0x01; //PWM¿ØÖƼĴæÆ÷µÄλ0ÇåÁ㣬¼´½ûÓÃPWM2
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PWM2=0; //PWM2Òý½ÅÖÃΪµÍµçƽ
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}
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else
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{
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P_SW2 |= 0x80; //ÉèÖø¨Öú¼Ä´æÆ÷2µÄλ7Ϊ1£¬½«PWM2Òý½ÅÇл»µ½P1.3
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PWM2T1 = 0x01; //PWM2¶¨Ê±Æ÷1¼Ä´æÆ÷µÄÖµÉèÖÃΪ0x01
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PWM2T2 = Wide; //PWM2¶¨Ê±Æ÷2¼Ä´æÆ÷µÄÖµÉèÖÃΪ Wide
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PWMCR |= 0x01; //PWM¿ØÖƼĴæÆ÷µÄλ0ÖÃΪ1£¬¼´ÆôÓÃPWM2
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P_SW2 &=~0x80; //Çå³ý¸¨Öú¼Ä´æÆ÷2µÄλ7£¬½«PWM2Òý½ÅÇл»»ØÔÀ´µÄλÖÃ
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}
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}
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void pwm3(unsigned short Wide) //PWM3
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{
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if((Wide==0)||(Wide==1))
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{
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P_SW2 |= 0x80;
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PWMCR &=~0x02;
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PWM3=1;
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P_SW2 &=~0x80;
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}
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else if(Wide==CYCLE)
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{
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PWMCR &=~0x02;
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PWM3=0;
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}
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else
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{
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P_SW2 |= 0x80;
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PWMCFG = 0x3f; //ÅäÖÃPWMµÄ³õʼµçƽΪ high
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PWM3T1 =0x01 ;
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PWM3T2 =Wide;
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P_SW2 &=~0x80;
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PWMCR |= 0x02;
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}
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}
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void pwm4(unsigned short Wide) //PWM4
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{
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if((Wide==0)||(Wide==1))
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{
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P_SW2 |= 0x80;
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PWMCR &=~0x04;
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PWM4=1;
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P_SW2 &=~0x80;
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}
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else if (Wide==CYCLE)
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{
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PWMCR &=~0x04;
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PWM4=0;
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}
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else
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{
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P_SW2 |= 0x80;
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PWM4T1 = 0x01;
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PWM4T2 = Wide;
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P_SW2 &=~0x80;
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PWMCR |= 0x04;
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}
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}
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void pwm5(unsigned short Wide) //PWM5
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{
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if((Wide==0)||(Wide==1))
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{
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P_SW2 |= 0x80;
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PWMCR &=~0x08;
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PWM5=1;
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P_SW2 &=~0x80;
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}
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else if (Wide==CYCLE)
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{
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PWMCR &=~0x08;
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PWM5=0;
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}
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else
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{
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P_SW2 |= 0x80;
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PWM5T1 = 0x01;
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PWM5T2 = Wide;
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P_SW2 &=~0x80;
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PWMCR |= 0x08;
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}
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}
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