USB Bootloader for LPC2148

Medic · February 16, 2006, 06:19:26 AM

Hi Guys,

Anyone know of any sources of information on having some code that can reflash LPC2148 using USB?

I figure some USB code sits in flash and acts as a gateway for firmware updates. Thought I'd ask before recreating the wheel.

Regards,

Mark.

Rons · February 16, 2006, 09:24:59 AM

Mark,
Talk about timing. I am about to start using this same device. I was
going to use Linux and go that route. When I first started out I used
FlashMagic. I'm not sure yet about whether their ISP firmware support
for USB. But I will find out. I probably will be ordering devices today. I
found a good source for emulation sockets too. Other people I talked to
would have a minimum quantity of 10, but not my latest source. They
accepted an order for 1 socket.

Ron

Andy Ayre · February 16, 2006, 09:34:15 AM

Flash Magic doesn't know about anything other than RS232 communications.

Rons · February 16, 2006, 10:06:27 AM

Andy,
I suspected that Mark might be talking about the flash utility that
Philips provide, a program called "LPC210_ISP.exe". Although I
just looked at the data sheet for his device. They upped the baud
rate to 230k for serial ISP. But I see no mention for USB support.

Medic · February 17, 2006, 10:26:35 AM

I know that FlashMagic only works over serial comms.

Apparrently HCC are on the verge of releasing a USB boot loader for the LPC2148 chip so it can be done.

Just thought someone might have tried writing a small code stub that uses the IAP functionality to pass updates from USB into the LPC flash.

Thanks anyway.

Je Gold · February 18, 2006, 01:59:09 AM

Hi ,

The LPC2148 and other LPC2000 32bit flash ARM7TDMI-S micros come with a default UART serail boot loader (not USB).

So either Philips would have to pre-load a USB boot loader - for default production OR a bootloader would have to be written and downloaded serially or via JTAG to each LPC2148 purchased.

Some LPC2000 designs have already written a Bootloader that can load / run your code from a flash mem card (interesting).

There is a good forum on the Philips LPC2000 series (including the LPC2148)
at http://groups.yahoo.com/group/lpc2000/

The Flashmagic programming interface is getting quite mature and supported by Philips..... Perhaps a version of Flashmagic can support the LPC2000 series with a little prompting from Philips in the future ;-).

Regards
Joe

Andy Ayre · February 18, 2006, 08:51:09 AM

Perhaps.

Rons · February 24, 2006, 08:57:54 AM

Medic,
What does "HHC" stand for?