Using ESP8266/32 to write Flash

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mon2
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Re: Using ESP8266/32 to write Flash

Postby mon2 » Wed Jan 24, 2018 7:15 pm

This company has some patented small footprint jtag cable which could work for your consideration.

http://www.tag-connect.com/

Use enough pins on the cable to allow for the disabling of your mux and still allow for the assertion of the SPI pins to reflash a virgin or corrupt flash device. The main intent is to how to program the flash the first time and using an external jig is probably a good solution. From past dialog, vendors like Arrow and most likely Avnet can pre-program the flash with your code at the factory and then ship you the part on tape & reel so the assembly house does not complain. But then you will be paying a small premium for the service + setup fees. Benefit is that the board will do something upon first power up since the flash is programmed already. Many ideas to ponder.
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xaerox
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Postby xaerox » Wed Jan 24, 2018 8:01 pm

Thank you mon2!
I already worked with tag-connect products :)

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