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Re: ADC CH0 Scan問題
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新會員
 
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哈....
我眼殘.... 沒仔細看到Data Sheet... 因為ASAM 已經設定為1,所以設定SAMP無效 If ASAM = 0, software can write ‘1’ to begin sampling. Automatically set by hardware if ASAM = 1. 而突然關閉ASAM後,在開啟,將從上次轉換後的下一個開始... ASAM: ADC Sample Auto-Start bit 1 = Sampling begins immediately after last conversion. SAMP bit is auto-set 0 = Sampling begins when SAMP bit is set 見諒....@@"
發表於: 2008/10/14 11:01
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Re: ADC CH0 Scan問題
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版主
 
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沒試過，不過因為SAMP在 C Scanning 的過程中被關掉了，當SAMP 重新設 1 時，Scan 會從頭開始。
發表於: 2008/10/14 9:14
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ADC CH0 Scan問題
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新會員
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請問:
如果我用CH0掃描AN0~AN3 當我在掃描到AN2時(AN2取樣,但是轉換未完成,即中斷未發生) 停止掃描(AD1CON1bits.SAMP=0) 那下次我再開始掃描時(AD1CON1bits.SAMP=1) 會從哪開始,即下次中斷,所收到的值為何?!AN0 or AN2 謝謝
發表於: 2008/10/13 11:44
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