Sorry.
I should have said I use the full version of the PICALL programming software
to program my PICs.

Pete

> -----Original Message-----
> From: Betts Peter (EXT-TemporalReality/Camberley)
> Sent: Thursday, February 08, 2001 7:18 AM
> To: 'pic microcontroller discussion list'
> Subject: [PIC]: Programming SMD PICs using P16PRO
>
>
> Has anyone experienced problems in programming PIC's whilst
> in situ (In-Circuit Programming)
>
> I have a P16PRO purchased from Dontronics (about 1.5yrs ago!)
> and it's been fine for leaded (through hole DIL) parts but I
> thought I could be clever and just wire the specific
> programming pins (RB6,7, MCLR and 0V,5V) from the P16PRO and
> program my surface mounted PIC on the fully built circuit.
> Specifically they are 16F8X and 16F87X series.
>
> I can only seem to be able to do this if I attach a couple of
> scope probes to the programming pins and then it's very very
> touch-and-go.
>
> I'm assuming the scope probes provide some kind of
> capacitance and is therefore smoothing out noise on the data
> or clock lines? Does this sound right?
>
>
> Is the following statement found on the site the key to my success?
> http://www.picallw.com/#HARDWARE
>
> "If you have problems by programming (Programming Failure)
> and you have a new 486 or pentium motherboard with LTP port
> on motherboard, then you must connect an additional ceramic
> capacitor (330 to 470 pF) between ground and pin RB7 on
> TEXTOOL or you can add additional pull-up resistor (4k7) to
> ACK line and +5V"
>
> I have both a Pentium I 200MHz Laptop and a AMD Athlon 800MHz
> Desktop and both give the same problems.
> I've tried the 4k7 extra pull up but this makes this worse I think.
>
> Any suggestions?
>
> Regards
>
> Pete
>

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