Absolutely. My ICSP cable is always connected to my boards. Its my main source of power. When not the source, I just make sure to use the correct resistors if the programming pins are bing shared. Speaking from PICkit2 experience.
I frequently power a board from 2 supplies at the same time and have no problem. In fact, if your board draws more than 100mA it is a must that you have additional power.
I built inchworm on a veroboard without the BS250.
Anyways I just want to power both inchworm and target separately and leave them on independently. Reading the posts, I understand thats alright to do. So I am all set
I dont want to power inchworm from the target becasue that way I can switch the target on/off without switching the inchworm on/off everytime requiring me to press that blue icon on MPLAB to reconnect each time.
I dont want to power the target from the inchworm because the target is a robot and the load might be too much for the inchworm to bear.
Then it'll work fine, just make sure you added the diode that goes across the 7805 as the regulator does not like having its output higher than its input.
You mean D1 in the inchworm+ schematic ? I dont have that installed presently. Will do that. Can I use 1N4001 instead ? not sure if I will be able to find 1N5817.
BTW Bill, (off topic) Is there a place where you showcase snaps of homemade versions of your designs (inchworm, unicorn etc). Just like the SuperProbe guys does(http://mondo-technology.com/). It inspires the beast out of hobyists like us.
Why don't you leave the Vdd pin on the target ICSP connector floating? The ICD2 and the target would have separate supplies.
If you select 'Power target circuit from ICD2", you allow the ICD2 to pass the self-test, but it won't be powering the target, of course.
Ok I will look out for the diodes then. Since you bring it up..., any clues where I can buys some PIC18Fs from in new delhi ? I got some as samples from microchip but I find it kind of 'free lunch' and would like to be able to walk into a shop and buy some in real-time
Ok I will look out for the diodes then. Since you bring it up..., any clues where I can buys some PIC18Fs from in new delhi ? I got some as samples from microchip but I find it kind of 'free lunch' and would like to be able to walk into a shop and buy some in real-time