MicrochipDirect pre-programmed AVRs -- how to

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theusch
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Posted by theusch: Fri. Jun 29, 2018 - 03:57 PM
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We are assisting our board house with specifying the build for another of their customers.  Mega64 app that had pre-programmed from factory/distributor in the past.  As is often the case in these situations, original programmers and such are long gone.

 

Has anyone use the pre-programming facilities of MicrochipDirect for AVRs?  The specific question has to do with specifying the fuse values.  Do you check the box for e.g. M103C if you WANT the feature and to make the fuse bit zero; or do you check the box when you want the fuse bit to be one?

You can put lipstick on a pig, but it is still a pig.

I've never met a pig I didn't like, as long as you have some salt and pepper.

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Learning and Information, General Electronics, microchipDIRECT, ATmega64
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ki0bk
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Posted by ki0bk: Fri. Jun 29, 2018 - 08:34 PM
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Sounds like a question to ask your MC FE......

 

 

Jim

 

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gchapman
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Posted by gchapman: Fri. Jun 29, 2018 - 09:22 PM
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fyi, what's being questioned :

https://docs.google.com/spreadsheets/d/1KOAeeaU4qWvP8zs__dzfNuqPIWptQyIilHecEPojBu8/edit#gid=1816020274

or

Google spreadsheet for ATmega64 at microchipDIRECT, fuses and calibration

 

Edit : PNG
 

"Dare to be naïve." - Buckminster Fuller

Last Edited: Sat. Jun 30, 2018 - 05:25 AM
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theusch
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Posted by theusch: Sat. Jun 30, 2018 - 12:53 PM
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gchapman wrote:
fyi, what's being questioned :

Actually, that is helpful.  I only saw the "checkbox" panel.  I'd guess that the "fuse values" would be as we know and love them.  So a few experiments and ... 

Thanks.

You can put lipstick on a pig, but it is still a pig.

I've never met a pig I didn't like, as long as you have some salt and pepper.

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gchapman
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Posted by gchapman: Sat. Jun 30, 2018 - 05:11 PM (Reply to #2)
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MicroSolutions_July_August_2018.pdf

http://ww1.microchip.com/downloads/en/Market_Communication/MicroSolutions_July_August_2018.pdf (13.2MB)

(page 20)

Design Corner

Secure Your Code

(first paragraph)

...

Because of these obstacles [MOQ, delay], many AVR MCU buyers chose to use external programming houses, distributors or other third parties to have their devices programmed. This meant that customers had to give their code to third parties, which could compromise security and potentially result in malicious cloning of their code and subsequent risk to their revenue streams.

 

...

 

(next to last paragraph)

If you have any questions, you can always reach out to the microchipDIRECT client support team via email, phone or live chat or use the available tutorials that guide you through the process of setting up your programming order and uploading your code. You can also watch the Programming Tutorial for some helpful tips and look up pricing for your specific device using the Programming Cost Lookup tool.

 

...

programming tutorial video - it's a summary; the AVR configuration file (a spreadsheet) is not displayed though there's a demonstration of an upload of that file.

A suggestion is to add ELF as an upload option to the existing HEX; can see why it's done the way it is (quicker addition of AVR and SAM to existing PIC and memory devices)

microchipDIRECT programming does have a MOV (60.00 USD/EUR/GB, 397.87 CNY) that may be reasonable for low volume initial production; if one likes microchipDIRECT's value-added service then likely to continue for higher volume production.

 

http://www.microchip.com/about-us/microsolutions-enewsletter

microchipDIRECT How To Tutorials - Programming Center Walkthrough - YouTube

https://www.youtube.com/watch?v=ukQTc550XDM (2m19s)

 

"Dare to be naïve." - Buckminster Fuller

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jgmdesign
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Posted by jgmdesign: Sun. Jul 1, 2018 - 01:56 AM
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When I was going to have them do the programming it was easier to call them and ask how to set these things up.  They were actually rather friendly about it.  Cheaper than Digikey too.

 

JIm

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