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pic18f4431pwm中心對齊模式
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: 2006/11/20 9:19 最後登入時間
: 2017/12/8 20:46
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請問各位大大 有沒有用過PIC18F4431內建的PWM中心對齊模式 我使用的是UP/DOWN COUNTING MODE要產生66US的PTIF中斷 可是無論怎麼設定我的中斷時間大概都為220US 我的程式如下: #define FCY 2500000 #define FPWM 15000 CAPWM_PTPER=(FCY/FPWM-1)>>1; Int2Byte.Word = CAPWM_PTPER ; PTPERL = Int2Byte.Byte[0]; PTPERH = Int2Byte.Byte[1]; PTCON0 = 0b00000110 ; PTCON1 = 0b10000000 ; PWMCON0 = 0b01010000 ; PWMCON1 = 0b00000001 ;
請各位前輩幫幫忙吧 我要的需求是66US中斷一次阿
發表於: 2007/5/28 10:46
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