Using ESP8266/32 to write Flash

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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.

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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Postby xaerox » Wed Jan 24, 2018 8:01 pm

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

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