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Writing to External SPI Flash using DfuSe (USB)

Question asked by uzenkov.oleg on Jul 20, 2015
Latest reply on Jul 20, 2015 by Clive One
Hello Guys,

Please, could you tell me whether it would be possible to write binary data to an External SPI Flash from DfuSe (USB)?

I have a custom board with stm32f427. There is an SPI Nor Flash connected to the micro via SPI bus. I have no difficulties programming Internal Flash of the micro. However I need to find a way of flashing binary data to External Flash at Production time via USB (with or without DfuSe).

At present I use JTAG and OpenOCD to do the above, but JTAG is not an option for production in my case.

Is there a way of doing it?

I would appreciate any information on this.

Many thanks in advance.