#freeze
閲覧総計：&counter();　　（本日：&counter(today);　　昨日：&counter(yesterday);）~
~
*モータの速度を変える [#j5a84ca7]

PIC 16F628A内臓のＰＷＭ機能を利用し、モータへ掛かる電圧を変えモータの速度を変化させてみよう。　　06/10/29

注)16F628Aの場合、PWM信号はRB3から発信される。

関連MikroC関数
void Pwm_Init(unsigned long freq);
void Pwm_Change_Duty(unsigned short duty_ratio);
void Pwm_Start(void);
void Pwm_Stop(void);

|&attachref(P1010192.JPG,zoom,150x150,button){新しい写真添付};|&attachref(,zoom,150x150,button){新しい写真添付};|

 /**
 * ＰＷＭ機能でモータの速度を変える
 *
 * PIC 16F628A
 * 発信器:内臓4MHz
 * 電源:乾電池4本
 * モータドライバIC: TA7291P
 * RB3: モータ (CCP出力)
 *　
 * Device Flags: _BODEN_OFF _BOREN_OFF _CP_OFF _PWRTE_ON _WDT_OFF
 * 　　　　　　　_LVP_OFF _MCLRE_OFF _INTRC_OSC_NOCLKOUT
 *
 * 言語 MikroC v6.2
 */
 void main(){ //メイン プログラム
     unsigned short int i;
 
     PORTB = 0b00000000; //PORTBの中身をきれいにする
     TRISB = 0b00000010; //RB1は1:入力、他のPORTBは0:出力に設定
     PWM_Init(5000); //PWMの初期化 (5KHz周期指定)
 
     do { //doとwhileの間を繰り返す
         PWM_Start(); //PWM機能スタート
 
         //モータ電圧の変更 (Duty 0-255)
         PWM_Change_Duty(254); //duty:99% モータ電圧3.7V
         Delay_ms(9000); //9秒待つ
 
         PWM_Change_Duty(205); //duty:80% モータ電圧3.0V
         Delay_ms(9000); //9秒待つ
 
         PWM_Change_Duty(150); //duty:59% モータ電圧2.0V
         Delay_ms(9000); //9秒待つ
         
         PWM_Change_Duty(125); //duty:49% モータ電圧1.5V
         Delay_ms(9000); //9秒待つ
 
         PWM_Stop(); //PWMストップ
         Delay_ms(1000); //1秒待つ
 
     } while(1); //doとwhileの間を繰り返す
 } //メイン プログラム終了

★この情報は役に立ちましたか？
#vote(はい[12],普通[4],いいえ[7])
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