gnupic@linuxhacker.org

>Leva <leva@interware.hu> wrote: 

> OH! Too complicated! My TLVP programmer has only one active device and one
> resistor. It's also a Tait style design:

Ok. Now take a look at Tait's programmer, and your HVP programmer. If you add
the 7805 and 7812, the 100nF capacitors, diodes to your HVP programmer you get
almost the same amount of components.

Just to add, I know the 'passive' programmer which gets power from the serial
line. As an engenear I do not like this kind of simple circuit. It's more safe
to hava a little more complicated, but more reliable stuff. But this is my own
philosofy.


> Note that you can find both a High Voltage and ICSP version there too. Works
> great the 16F62X and 16F87X parts. As soon as I get my 18F452 samples I plan
> to extend my version of Brian Lane's picprg2.3 to program those too.

I'm glad to hear that! Please share us your 18fxxx softwares and hardware
experiences!   




Some (5) months ago I posted a message concerning the pic18f series programming. I modified
the Brian Lane's "picprg2.3-c" sw, which works with external configuration files for
each device, and for now it works with the pic18f452 device. The only restriction is
that the configuration fuses can be programmed only from within the code ( "__CONFIG"
proper directives). I use the well known "TAITish" parallel programmer with the 4066
and 7406 ICs. I just added 2 capacitors very close to the pic18f452 because the programming
algorithm is a little bit fast. You can experiment with the code located in:

 


http://morgoth.tlc.upv.es/~hecormar/pic18f/

There exists a working ( and also tested) "example.asm".

Have fun



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