Hi All,
I have a project where there are 3 818's on the same PCB, and with the same software.
Has anyone tried programming multiple devices, at the same time using a Pickit 3?
Regards
Bob.
Hi All,
I have a project where there are 3 818's on the same PCB, and with the same software.
Has anyone tried programming multiple devices, at the same time using a Pickit 3?
Regards
Bob.
Doing a quick Google search, I found..
http://www.microchip.com/forums/m485958.aspx
Add: For a small fee Microchip will program your chips at the factory.
Last edited by mark_s; - 1st July 2015 at 19:22.
If I cared about reliability or I had to travel a great distance to fix an issue or it was a commercial product... I would not attempt it.
For hobbyist stuff... give it a go!!![]()
Dwight
These PIC's are like intricate puzzles just waiting for one to discover their secrets and MASTER their capabilities.
I would be somewhat leary of trying to program 3 devices at the same time as there is a handshake process that has to take place during the flash process. If the timing of 1 of the devices is a bit different there could be a conflict. I am assuming you are talking about connecting the PGC, PGD, and RST line's together?
Also there may be a problem with Loading.
Dave Purola,
N8NTA
EN82fn
@Dave, I'm not sure you are correct re. handshaking. Don't know about LVP but for standard high-voltage programming all I see is clock and data and VIHH on MCLR. Of course you wouldn't be able to verify so I guess you could only use this for novelty items. But if you really had to do this you have the PIC device verify its code space against a checksum.
George
Thank you all for the replies.
This is an industrial product, so not worth taking the risk.
I admit I had not thought about the verify part of programming.
Regards
Bob.
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