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how to bootstrap my target board with a 56F83XX DSP

Started by lesl...@agilent.com July 13, 2005
I am trying to find a way of bootstrapping my target board. It has a Freescale DSP 56F8357 with no external memory. I am using Metrowerks Codewarrior development system for DSP 56F8300/E ver. 7.2.

I need a way to program the flash on a DSP that has nothing programmed into its internal flash memory.

Any help would be very much appreciated.



Hi Lesley

You can use the serial bootloader. All new processors have that code
already programmed into the processor's boot flash.

You can use that if you have the EVM or your own board with an RS232
port on comm port 0 of the processor. Use a terminal program, like
HyperTerminal, set to 115k baud, 8 bits, no parity , 1 stop bit and
XON/XOFF flow. Just download the .S file to the processor after the
bootloader sign-on screen appears using the Send Text File mode of
the terminal program.

Check the processor documentation for more info on the bootloader.

Pete --- In motoroladsp@moto..., lesley_freed@a... wrote:
> I am trying to find a way of bootstrapping my target board. It has
a Freescale DSP 56F8357 with no external memory. I am using
Metrowerks Codewarrior development system for DSP 56F8300/E ver.
7.2.
>
> I need a way to program the flash on a DSP that has nothing
programmed into its internal flash memory.
>
> Any help would be very much appreciated.


Hi!

I would recommend that you use the Flash over JTAG program that is supplied
with the Metrowerks CodeWarrior (or was it Processor Expert?)

This works like a dream. No need to have any software aboard the processor
from start, could be handy not to have a boot loader as a requirement since
loading could be disrupted and cause unbootable situations.

If you need more info then please mail me and I can guide you through this.

Best Regards,

Rikard

----- Original Message -----
From: <lesley_freed@lesl...>
To: <>
Sent: Wednesday, July 13, 2005 9:58 PM
Subject: [motoroladsp] how to bootstrap my target board with a 56F83XX DSP >I am trying to find a way of bootstrapping my target board. It has a
>Freescale DSP 56F8357 with no external memory. I am using Metrowerks
>Codewarrior development system for DSP 56F8300/E ver. 7.2.
>
> I need a way to program the flash on a DSP that has nothing programmed
> into its internal flash memory.
>
> Any help would be very much appreciated. >
>