LVP & ISP VIA ICD2

[Steve001]

looking to try and put ISP via ICD2 to one of my projects so i can use my pic kit2 programmer on it.
Would the attached circuit work ?
Is there anything to be aware of in the set up and using of port b in this way ?

steve

[Benj]

Hello,

Looks good to me though I have not checked the pin out of your RJ11 connector is correct.

[Steve001]

thanks benj got the data for the rj11 from the manuel

http://pub.ucpros.com/download/PX-200_u ... d8d5ff96dd

There is a mistake the switch contacts are drawn the wrong way round sorry
going to give it a go is there any issues with port b to be aware of when enabling lvp ?

steve

[Benj]

Hello,

I rarely bother with LVP anymore as you loose the functionality of the Low Voltage detection pin which is normally right in the middle of Port B. If you can get 12V onto the board anywhere or your programmer can supply the 12V then I would scrap the LVP altogether. Also if you are going to be programming a range of devices the LVP pin is not always on pin RB3 so you may need some kind of switching to allow this for multiple devices.

[Steve001]

right thanks for that going to go back with my pencil and rethink

steve