Hot!PIC18F6622 Errata on PWM and Timer 4

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jfgr
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2018/06/11 23:41:21 (permalink)
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PIC18F6622 Errata on PWM and Timer 4

Hi,
I'm using the PIC18F6622 and I manage PWM with timer 4.
I use Timer 4 as clock source for CCP4 in PWM mode. Unfortunately, in errata DS80000253C.pdf, I have seen that Timer 4 is not available as a clock source forCCP4 or CCP5 in any PWM mode.
When I have tested my firmware, it was working well !
Could someone explain to me which kind of issue is generated ? PWM output stop on logical level 0 or 1 ? PWM is stopped during short time ? PWM never start ? Is issue is in all components PIC18F6622 or only in few of them ? Is issue appeared with some special conditions ?
 
Thank for your help 
 
Regards
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    jack@kksound
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    Re: PIC18F6622 Errata on PWM and Timer 4 2018/06/13 07:30:15 (permalink)
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    Usually errata mentioned in the errata shets applies to specific revisions of the pic hardware (chip). Have you checked to see if you have a newer revision then mentioned in the errata sheet?
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    jfgr
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    Re: PIC18F6622 Errata on PWM and Timer 4 2018/06/13 09:08:24 (permalink)
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    On the errata sheet Microchip writes "All engineering and production devices", so I think that new products have the same issue. 
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    qɥb
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    Re: PIC18F6622 Errata on PWM and Timer 4 2018/06/13 17:46:19 (permalink)
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    jfgr
    On the errata sheet Microchip writes "All engineering and production devices", so I think that new products have the same issue.

    That was probably true at the time the errata sheet was produced.
    Have you checked if your chip is one of the versions mentioned in the errata sheet?

    This forum is mis-configured so it only works correctly if you access it via https protocol.
    The Microchip website links to it using http protocol. Will they ever catch on?
    PicForum "it just works"
    #4
    jfgr
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    Re: PIC18F6622 Errata on PWM and Timer 4 2018/06/13 22:54:18 (permalink)
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    Thank for your remarks, I have read again the sheets and on the the first page of the errata sheet, Microchip says "All of the issues listed here will be addressed in future revisions of the PIC18F6622 silicon" And below there is a table with device ID and revision so I will check the revision of my components.
    #5
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