Try to call Aprilog and check with them (www.aprilog.com). We buy from
them or regulator basis and are very happy with the service.

They carry both sockets and adatpers but you need to check if they have
what you need (e.g.
http://test-socket.com/perl/part.pl/sel::/,IC51-0804-808.htm). Another
option is to get from Microchip the proper adapter for their
professional programmer and build and adapt it to your programmer
(should not be too difficult, the interace spec can be found on
Microchip web site though I never tried it since we found the adapters
we need at Aprilog).

Try also emulation.com and epboard.com.

I presume you already considered in-circuit programming.

Tal

> -----Original Message-----
> From: pic microcontroller discussion list
> [mailto:PICLIST@MITVMA.MIT.EDU] On Behalf Of Michael Rigby-Jones
> Sent: Wednesday, July 09, 2003 8:12 AM
> To: PICLIST@MITVMA.MIT.EDU
> Subject: [PIC]:Device adapter source and programming problems
>
>
> 1) Does anyone know a source of a programming adapter
> suitable for an 18LF8620 (80pin TQFP 0.5mm pitch) preferably
> suitable for use with a PS+ (i.e. 40PIN DIP)?
>
> 2) I am having a nightmare trying to program the above
> devices using ICSP. I have been trying a Promate2 (with MPLAB
> 5.74 and MPLAB 6.30) and an ICD2 (with MPLAB 6.30) and the
> results with both are the same.  The PIC has to run at 3.3
> volts, and the power is shared by many devices that are not
> 5v tolerant.
>
> With a brand new PIC, if I perform a blank check, the
> programmer (either of
> them) reports that the device is not blank.  Specificaly, the
> program memory always has the same pattern in memory starting
> with 0xC0C0 at address 0x0000.  If I try to erase the PIC at
> 3.3volts, it fails to erase the program memory, but the
> PROMATE then reports that the configuration fuses are clear.
> This is exactly the opposite to what logic dictates as the
> datasheet states that the configuration fuses can only be
> cleared by a bulk erase at >=4.5volts.  In any case, the PIC
> fails to program.
>
> After pulling my hair out for a day, I stared lifting the Vdd
> pins on the PIC so that I could power it from an external
> 4.5volt supply and perform a bulk erase.  After this, the PIC
> will program happily at 3.3 volts. However, this is really
> not practical as a) I have a stack of boards that all exhibit
> this problem, and b) the PCB is made from a material suitable
> for high frequency use and the copper delaminates very easily
> compared to FR4.
>
> In the (recent) past I have seen a simmilar issue with a few
> other 18F series PIC's, notably 18LF452 and 18LF6620.
> However, it was only the occaisional device and I was able to
> apply 4.5 volts without causing damage to other components in
> those cases.
>
> Has anyone else seen this, and does anyone have any
> suggestions as to what to try next? (Microchip has been
> contacted, but deadlines are looming!)
>
> Regards
>
> Mike
>
>
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