Hi Peter,

Never seen this error. Does the Pickit3 recognize the chip? Are the 
programming pins not connected to something else that might disturb the 
programming? Just checking.

Kind regards,

Rob


On Saturday, May 16, 2020 at 2:42:40 PM UTC+2, Zet Weeh wrote:
>
> Hi
> I tought I knew enough, but..
>
> I use the sample of the 16F505 with a resonator and the Picket3.
> I get al lot of warnings and mistakes:
>
>    - Programming failed at Program Memory adress 0x000000
>    - Warning
>    This device requires a minimum Vdd of 4,5V for bulk Erase Operations
>    If yiou continue it may fail to erase or program properly
>    - OSCCAL Invalid Value detected
>
> The chip has a Vdd of 5 V.
> There is no OSCCAL in the sample.
> The Pickit3 has the 16F505 as target.
> The compiler gives no warnings.
>
> What is the reason that the sample does not work (anymore)?
>
> Kind regards,
> Peter
>

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