programing pic xxfxxxx does it use osc.

[Ivan-Holm]

I repair many embedded Hardware in a production with Pic and other Micro controller. my questions is:
does the Pic xxfxxx use the external or internal osc. to flash the pic program in the pic ?

why I am asking is can the external osc. or Crystal be the reason that the pic can not be programed.
I have to this day not confirmed that this have influent to program it, but I have sometimes repaired bad Crystal og osc. to get the program to run.

I know how SPI and Jtag. but I don't know if it work the same way with flash program device.

 

[hexreader]

The clock is provided by the programmer (e.g. PICkit3) when programming, so no other clock source is required.

Debugging (for those PICs that have debug capability) requires that a valid clock source be configured and working, but programming is much easier.


.... unless you are using a bootloader to program your PIC, in which case correct clock configuration is essential.

 

[Ivan-Holm]

The clock is provided by the programmer (e.g. PICkit3) when programming, so no other clock source is required.

Debugging (for those PICs that have debug capability) requires that a valid clock source be configured and working, but programming is much easier.


.... unless you are using a bootloader to program your PIC, in which case correct clock configuration is essential.

thanks for the Answer, I will remember that in the future.