mvs sarma
Well-Known Member
Pretty much, as long as they are 5V or 5V tolerant.
Afterall a sub section of the original PICLIT2. BTW, Could you get the ART2003 (very few wires) tested for pre programming the 18F2500, Bill?
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Pretty much, as long as they are 5V or 5V tolerant.
Since I sell the kits with a preprogrammed 18F2550 it's kind of hard to motivate me to undercut my own business testing lousy old programmers. ........ T...........
I built the Junebug USB to replace the Inchworm RS232 and will soon discontinue the Inchworm+ as RS232 is fast disappearing and really slow.
I wasn't offended by the suggestion, I just wanted to point out why it was not on my personal to do list.
If someone else wants to do it I'm fine with that. Experience seems to say that the JDM type programmers will either run fine or never behave. It all depends on your PC and OS. A modern OS like XP or Vista will fight you tooth and nail, even worse if you're running the 64 bit versions.
Add to that the sheer number of PICs Microchip introduces in a year. Once upon a time people like Nigel would keep the list to his Winpic software updated but after awhile I'm sure it feels more like a chore and less like something you'd want to do for free.
Pretty much, as long as they are 5V or 5V tolerant.
The Junebug kit can program VPP before VDD. That's what the FETs are for.
A logic level P-Channel MOSFET can replace the BS250K. The two FETs form an Half Bridge for power control.
You can ignore the 1K Gate resistor if you omit the FETs.
You can use a PNP transistor to switch Vdd. See the upper left corner of this link. There is also a PCB layout available. See **broken link removed**.
Mike.