USB bootloader from a memory stick

Alex PEPY

Hi everyone,

I was wondering if it was possible to update a F28069 using the USB bootloader and a program stored in a memory stick.

I know that the existing bootloader is only reading data send through USB (via a computer) but do you think such a thing is possible ?

My first thought was to develop a program on the microcontroller that reads the contents of the USB stick memory and flash the device using the data read. But it's not really a bootloader and could be hard to develop.

So I thought that developing a program on the flash stick that sends the .bin file when the USB interface is activated. In this case, the USB bootloader provided by TI can be used.

What do you think about that ?

You have 4 hours, good luck !

Regards,

Alex.

over 13 years ago

MaciejKucia over 13 years ago

Mastermind 7925 points

Alex PEPY said:
You have 4 hours, good luck !

Thank you for your kindness, it could have been 4 minutes!

This looks like feasible task.

Regards,
Maciej

Gautam Iyer over 13 years ago in reply to MaciejKucia

Guru 192875 points

Seems to be possible....

Root access for Memory stick should be available to achieve this task!

If you use the USB stack to fetch the data from memory stick and then boot the mcu; theoretically seems possible.

Do check and update :)

Regards,

Gautam

Alex PEPY over 13 years ago in reply to Gautam Iyer

Prodigy 180 points

And I should need a memory stick filled only with my program,am I right ?

I'll do this kind of thing a bit later, so I'll update when I'll start it. Just a matter of (free) time, something like 2 or 3 months !

Gautam Iyer over 13 years ago in reply to Alex PEPY

Guru 192875 points

Hi Alex,

Yup stick to only the program in memory stick; later you can complicate things by including number of different bin files. Take your time...I hope you succeed.

Regards,

Gautam

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USB bootloader from a memory stick