PWM控制輸出代碼

1、#define KEY_GLOBAL 1#include "Key.h"static uchar keyValueBuff;static uchar keyValueOld;static uchar keyValueTemp;static uint stillTimes;static uint stillTimesMax;/*讀取鍵值的緩沖區(qū)*/*前一次的鍵值*/*鍵值中間交換變量*/*鍵按下保持次數(shù)*/*取x變量y位的數(shù)據(jù)*/*置位x變量y位*/*清零x變量y位*/*置位或清零x變量y位*/*cpu震蕩周期*/*開(kāi)總中斷*/*關(guān)總中斷*/共享知識(shí)分享快樂(lè)#ifndef I

2、NCLUDE_H#define INCLUDE_H#include "AT89X51.h"#include "intrins.h"#define uchar unsigned char#define uint unsigned int#define _BV(x) (1<<(x)#define GET_BIT(x,y) (x)&(1<<(y)=0?0:1)#define SET_BIT(x,y) (x)|=(0x0001<<(y)#define CLR_BIT(x,y) (x)&=(0x0001<&

3、lt;(y)#define LET_BIT(x,y,z) (x)=(x)&(0x0001<<(y)|(z)<<(y)#define F_CPU 12000000UL#define sei() (EA=1)#define cli() (EA=0)#endifstatic uchar get_data_1_count(uchar number);static void read_all_key(uchar *buff);/* * 函數(shù)名稱(chēng)：key_init(void)卑微如蟋蟻、堅(jiān)強(qiáng)似大象共享知識(shí)分享快樂(lè)*函數(shù)功能：初始化按鍵掃描*函數(shù)入口：無(wú)*函數(shù)出口：無(wú)*/vo

4、id key_init( void )(keyValueBuff = 0x00;keyValueOld = 0x00;keyValueTemp = 0x00;stillTimes = 0;stillTimesMax = FIRST_TIMES;/* 函數(shù)名稱(chēng)：read_all_key(uchar *buff)* 函數(shù)功能：掃描按鍵下的鍵，將按下的鍵的位置存入變量buff* 函數(shù)入口: buff* 函數(shù)出口：無(wú)*/* void read_all_key(uchar *buff)(if (IN_PRESS_UP=KEY_FORCE_VALUE)/ 檢測(cè)按下的鍵 READ_KEY(1,KEY_UP,

5、*buff);elseREAD_KEY(0,KEY_UP,*buff);if (IN_PRESS_DOWN=KEY_FORCE_VALUE)READ_KEY(1,KEY_DOWN,*buff);elseREAD_KEY(0,KEY_DOWN,*buff);/* 函數(shù)名稱(chēng)：get_key_value(void)* 函數(shù)功能：讀取鍵值* 函數(shù)入口 ：無(wú)* 函數(shù)出口:返回按下的有效鍵值*/uchar get_key_value( void )(keyValueBuff = 0x00;read_all_key(&keyValueBuff);keyValueTemp = keyValueBuff

6、;delay_us(KEY_DELAY_TIME);read_all_key(&keyValueBuff);卑微如蟋蟻、堅(jiān)強(qiáng)似大象共享知識(shí)分享快樂(lè)/*兩次讀到的鍵盤(pán)值相同則為有效鍵盤(pán)值*/if ( keyValueTemp = keyValueBuff )(if (keyValueTemp = 0)(keyValueOld = 0;stillTimes = 0;stillTimesMax = FIRST_TIMES;return 0;else if (keyValueOld != keyValueTemp)(stillTimes = 0;keyValueOld = keyValueTe

7、mp;#if CAN_MORE_PRESSreturn keyValueTemp;#elseif ( 1 = get_data_1_count(keyValueTemp) (return keyValueTemp;else(return 0;#endifelse if (keyValueOld = keyValueTemp)(#if CAN_MORE_PRESS = 0if ( 1 != get_data_1_count(keyValueTemp)(stillTimes = 0;return 0;#endif#if CAN_REPEATstillTimes +;if (stillTimes &

8、gt; stillTimesMax)(stillTimes = 0;卑微如蟋蟻、堅(jiān)強(qiáng)似大象共享知識(shí)分享快樂(lè)#if REPEAT_MODEif (FIRST_TIMES = stillTimesMax)(stillTimesMax = OTHER_TIMES;#endifreturn keyValueTemp;#elsestillTimes = 0;return 0;#endifelse(stillTimes = 0;return 0;return 0;/* * 函數(shù)名稱(chēng)：get_data_1_count(uchar number)*函數(shù)功能：計(jì)算uchar類(lèi)型變量中的數(shù)量，用于檢測(cè)是否多鍵按下

9、*函數(shù)入口： number,需要檢測(cè)數(shù)量的變量*函數(shù)出口：返回變量 bumber中的數(shù)量* Iuchar get_data_1_count(uchar number)(register uchar i,j = 0;for (i = 0; i < 8; i +)(if ( (number&_BV(i) )(j +;return j;/* 函數(shù)名稱(chēng)：delay_us(uint us)* 函數(shù)功能：毫秒級(jí)延時(shí)* 函數(shù)入口：延時(shí)計(jì)數(shù)變量us卑微如蟋蟻、堅(jiān)強(qiáng)似大象共享知識(shí)分享快樂(lè)*函數(shù)出口：無(wú)*/ void delay_us(uint us)uchar delayi;while (-us)

10、for (delayi=0;delayi<10;delayi+);#include "Include.h"#ifndef KEY_H#define KEY_H 1#ifndef KEY_GLOBAL#define KEY_EXT extern#else#define KEY_EXT#endif#define READ_KEY(x,name,b) (x)?(b|=name):(b&=name)/ 用戶設(shè)置區(qū)卑微如蟋蟻、堅(jiān)強(qiáng)似大象共享知識(shí)分享快樂(lè)#define CAN_MORE_PRESS 0#define CAN_REPEAT 1#define REPEAT_M

11、ODE 1#define FIRST_TIMES 200#define OTHER_TIMES 25#define KEY_DELAY_TIME 20#define KEY_FORCE_VALUE 0/*是否允許多鍵都按：允許為；不允許為*/*是否允許重復(fù)按鍵：允許為；不允許為*/*重復(fù)模式：先長(zhǎng)后短為；相同間隔為*/*重復(fù)按下時(shí)，第一次間隔時(shí)間*/*第二次后間隔時(shí)間（如果重復(fù)模式為時(shí)此值無(wú)效）*/*鍵盤(pán)掃描時(shí)間間隔XXXus */*鍵盤(pán)有效電平，為高電平，為低電平*/#define IN_PRESS_UP P1_0/*1設(shè)置鍵端口 */#define IN_PRESS_DOWN P1_1/*

12、2設(shè)置鍵端口 */*鍵盤(pán)重映射 注：當(dāng)前結(jié)構(gòu)下最大按鍵數(shù)為：8;以進(jìn)制中的相應(yīng)位來(lái)標(biāo)識(shí)*/enum KEY_VALUEKEY_UP= 0x01,KEY_DOWN= 0x02,KEY_NULL = 0x00;/KEY_EXT void key_init( void );/ 鍵盤(pán)掃描初始化KEY_EXT uchar get_key_value( void ); / 讀取有效鍵值變量KEY_EXTvoid delay_us(uint us);/us 級(jí)延時(shí)函數(shù)#endif卑微如蟋蟻、堅(jiān)強(qiáng)似大象共享知識(shí)分享快樂(lè)#define LED_GLOBAL 1/*聲明微秒級(jí)延時(shí)函數(shù)*/#include &quo

13、t;led.h" extern void delay_us(uint us);/* 函數(shù)名稱(chēng)：led_init(void)* 函數(shù)功能：數(shù)碼管初始化* 函數(shù)入口 ：無(wú)* 函數(shù)出口：無(wú)*/* void led_init( void )/數(shù)碼管顯示pwmu始化值，/100ledWrite('1',0x01,DIGITAL);ledWrite('0',0x02,DIGITAL);ledWrite('0',0x03,DIGITAL);/* 函數(shù)名稱(chēng)：ledWrite(uchar c,uchar n,uchar mod)* 函數(shù)功能：向第n個(gè)數(shù)碼

14、管寫(xiě)mo腰式的內(nèi)容c* 函數(shù)入口： c為要顯示的內(nèi)容，顯示數(shù)字時(shí)，調(diào)用入口應(yīng)輸入數(shù)字字符 n為要顯示的數(shù)碼管編號(hào)；mod為要顯示的模式* 函數(shù)出口：無(wú)* * Ivoid ledWrite(uchar c,uchar n,uchar mod)if (CHARACTER=mod)/為任意字段顯示 LED=c;else if (DIGITAL=mod)LED=segLedCodec- '0' ;switch (n)case 0x01:卑微如蟋蟻、堅(jiān)強(qiáng)似大象共享知識(shí)分享快樂(lè)LED_CS1=CS_FORCE_VALUE;delay_us(10);LED_CS1=0; /CS_FORCE_

15、VALUE break; case 0x02:LED_CS2=CS_FORCE_VALUE;delay_us(10);LED_CS2=0; break; case 0x03:LED_CS3=CS_FORCE_VALUE;delay_us(10);LED_CS3=0; break;default : break ;卑微如蟋蟻、堅(jiān)強(qiáng)似大象共享知識(shí)分享快樂(lè)/*驅(qū)動(dòng)名稱(chēng)：七段LE用碼管驅(qū)動(dòng)*功能:適用于帶個(gè)鎖存器 LS373的段數(shù)碼管顯示*修改:修改驅(qū)動(dòng)使其適用于三個(gè)數(shù)碼管顯示*版本:V0.0.1*作者:kxm*時(shí)間:.06.11*/ #ifndef LEDH #define LEDH 1 #incl

16、ude "Include.h"#ifndef LEDGLOBAL#define LEDEXT extern#else#define LEDEXT#endif#define CSFORCEVALUE 1/*74LS373片選有效電平*/*數(shù)碼管端口定義*#defineLEDP0/*定義LECB據(jù)端口 */#defineLEDCS1P2 0/*74LS373鎖存器片選端口*/#defineLEDCS2P2/*74LS373鎖存器片選端口*/#defineLEDCS3P2 2/*74LS373鎖存器片選端口*/*enumSEG_DISPLAY_MODDIGITAL=0x00,CH

17、ARACTER=0x01/* 數(shù)碼管輸出模式，數(shù)字或任意字段顯示*/*高電平驅(qū)動(dòng)*/#ifdef LEDGLOBALuchar segLedCode10=0x7e,0x30,0x6d,0x79,0x33,0x5b,0x5f,0x70,0x7f,0x73;/* 數(shù)碼管數(shù)碼譯碼數(shù)組，led6led0=ag,code110=09*/*數(shù)碼管初始化*/*向第n個(gè)數(shù)碼管寫(xiě)mo腰式的內(nèi)容c*/#endifLED_EXT void led_init( void );LED_EXT void ledWrite(uchar c,uchar n,uchar mod);#endif卑微如蟋蟻、堅(jiān)強(qiáng)似大象共享知識(shí)分享

18、快樂(lè)#define PWM_GLOBAL 1 #include "pwm.h"/* 函數(shù)名稱(chēng)：pwm_init(void)* 函數(shù)功能：PWM始化，設(shè)置定時(shí)器* 函數(shù)入口 ：無(wú)* 函數(shù)出口：無(wú)*/*void pwm_init( void )/ 12MTMOD=0x20;/定時(shí)器模式TL1 = 255-10;/ 1msTH1 = 255-10;ET1 = 1;/定時(shí)器邊沿觸發(fā)TR1 = 1;開(kāi)定時(shí)器中斷pwmPeriodCont =0x00;pwmH=0x01;/* 函數(shù)名稱(chēng)：void pwm_set(const uchar NewPwmValue)* 函數(shù)功能：pwM空比設(shè)

19、置* 函數(shù)入口 ：無(wú)* 函數(shù)出口：無(wú)*/* void pwm_set(uchar NewPwmValue)(if (NewPwmValue >= 1)&&(NewPwmValue <= 99)一個(gè)周期里(pwmH = NewPwmValue;卑微如蟋蟻、堅(jiān)強(qiáng)似大象共享知識(shí)分享快樂(lè)/若占空比不在99范圍內(nèi)則輸出一個(gè)尖)else脈沖(pwmH =0x01;)/* 函數(shù)名稱(chēng)：pwmProduce(void)* 函數(shù)功能：定時(shí)器溢出中斷設(shè)置* 函數(shù)入口 ：無(wú)* 函數(shù)出口：無(wú)*/* void pwmProduce( void ) interrupt 3(pwmPeriodCo

20、nt+;/PWM®時(shí)周期計(jì)數(shù)加if (pwmPeriodCont<=pwmH)PWM_OUT =1;/ 高電平從到 PWM_Helse /剩下的為低電平時(shí)間(PWM_OUT =0;if (pwmPeriodCont >= PWM_Period) / 一個(gè)頻率周期結(jié)束 (pwmPeriodCont=0;)卑微如蟋蟻、堅(jiān)強(qiáng)似大象共享知識(shí)分享快樂(lè)/* 驅(qū)動(dòng)功能：產(chǎn)生pwm,12MHz振下，總周期為*1ms* 版本：,0.1* 作者：lhw*時(shí)間：.06.11*/#ifndef PWM_H#define PWM_H#include "Include.h"#ifndef PWM_GLOBAL#define PWMEXTextern#else#define PWM_EXT#endif#define PWM_Period 100100% 占空比時(shí)標(biāo)數(shù)/* 端口 定義 *sbit PWM_OUT=P1A2;/*pwm輸出端口映射 */*PWM_EXT uchar pwmPeriodCont;/ PWM 占空比計(jì)