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Re: PWM設定 help
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資深會員
 
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知道問題在哪了
是我自己觀念想錯了~呵呵
發表於: 2005/7/26 20:36
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PWM設定 help
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資深會員
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以下是pic18f252 C18 的PWM 初始化 程式
為什麼如果把OpenPWM 的參數設為 255可以輸出正確的2441HZ 但是如果把參數改為39 (10進位), 結果輸出保持hi, 沒有得到15Khz的PWM輸出 是哪裡沒考慮到嗎?? 還是PR2的設定值有什麼限制?? void F_Initial_PIC(void) { TRISA=0b11101111; TRISB=0b11111111; TRISC=0b00000000; ADCON1=0b00000110; // RA皆為digital OpenPWM1(39); OpenTimer2(TIMER_INT_OFF & T2_PS_1_16 & T2_POST_1_2); SetDCPWM1(512); }
發表於: 2005/7/26 20:12
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