Surprising 16F628 / 20

[Acetronics2]

Hi, Jerson

It's not a speed issue nor ... I intend to make them run @ 4Mhz !!! ( or so ... the RCINTOSC is somewhat aside the 4Mhz !!! )

This Pic is just ... 10% under the 4 Mhz !!! ( 136 units for a true 1500 µs pulse ).

I think we met the same issue ...


Hi, Bruce

The Pause time modifying do not change anything.

Hi, Sayzer

That's the strange thing ... just the ( let's say ) ASM command doesn't work. A signal rise and fall time issue inside the Pic ???

Hi, Paul

Signal is neat and right on the DMM ... only without the Led !


So, ... I have to try another Pic Sample to confirm !!!



BTW ... I discovered in MPLAB 8.10 programmer, If you ask for ALL Erase ... The EEPROM is NOT Erased, and you must explicitly ask for FF Writing ...

same issue in the toolbar's "Erase Flash Device" ...

to be verified for other processors ...

Alain

[paul borgmeier]

>>If no load works then add more decoupler / filter caps.

Sounds like it worked - do you have electrolytic decoupler and ceramic filter caps? Is your power clean? Have you reduced ground loops?

Strange indeed to be sensitive to 12mA load switching ....

Interested to know how it turns out