Looking for USB Bootloader

[dhouston]

http://www.diolan.com/pic/bootloader.html

[prstein]

I played with the Microcohip USB bootloader but never (quickly) got it to work to where I'd willingly demonstrate to a customer. Since, even when using direct USB connections I always leave the RX and TX pins open and run them to a 3 or 4 pin header. Then I put the mating connector on one of these (they come in 3.3V as well) and have a USB bootloader that works perfectly. There is a setting on the PC that needs changed for it to work correctly (I want to say it's the minimum latency time or something like that--I'd have to look it up--but you only have to do that once.

Not sure that's really the kind of solution you're looking for, though.

Best Regards,
Paul

[yatyas72]

Thanks both of you for your help. I believe I will just use a usb-rs232 chip and the TinyBootloader, was hoping someone had a user friendly version of a bootloader for a 18F2550 since it's USB capable and figured that might be easier. but for $7 dollars or less I can have the usb-rs232 interface and not spend any more time on this part.

[HenrikOlsson]

Hi,
Have you looked at this one?
I've got no part in its development and I haven't tried it. If you do try it, let us know how it goes please.

/Henrik.