-----Original Message----- From: u-boot-users-admin@lists.sourceforge.net [mailto:u-boot-users-admin@lists.sourceforge.net] On Behalf Of Wolfgang Denk Sent: Thursday, December 02, 2004 4:43 PM To: mike ingle Cc: u-boot-users@lists.sourceforge.net Subject: Re: [U-Boot-Users] Choosing flash and ram for embedded mpc5200 and loading flash

In message 1102010876.9375.45.camel@Polar64 mike ingle wrote:

[snip]

...

Finally, I have a MPC-823 set up as a JAM player over JTAG for use with Altera parts. Is there any way to move the u-boot

image to a JAM

...

file which could then be loaded via the MPC-5200? I am

trying not to

...

have to purchase the BDI-2000. I suspect that I could also use my FPGA (I will

Reconsider. This is the only item in your plan where I really recommend to reconsider.

...

have an Altera cyclone device connected on the local bus)

as a flash

...

programmer by porting the programming algorithm from the NIOS reference board, and having pins connected to the necessary

Flash pins.

You _can_ do many things, if you have enough time and nerves. You can re-invent gthe wheel again and again and again, or you can nail a piano to your kneecap. Some people actually like doing these things. I rather get a project done as smoothly and reliable as possible.

...

On a scale of 1 - 10 how useful is the BDI-2000 10 being

no one will

...

be able to help me at all without it. For reference, I am one of those people who never use a debugger.

If you never use a debugger that you will not use the BDI either, so it's 0 for you. For me, ist's something between 10 and 20.

Best regards,

Wolfgang Denk

I very, very rarely use the BDI for debugging, but I _LOVE_ it for programming flash. I would rank it as a 8 on your scale. Unless you are a unpaid software slave (been there, done that :-), the time you spend making a "JAM file" (whatever that is) and programming the flash parts by hand (writing a custom program to drive the "JAM player") will easily pay for the BDI2000.

In addition, the BDI2000 is insurance: if you ever need it just once to single step one line of code, you will have it and be able to do that. That one step of one line of code can easily save you from becoming a stark raving lunatic (been there, my wife says I'm still there ;-).

The "JAM Player" has not come up on this list before, so chances are you will be even lonelier than the VisionICE people :-/. It appears to be a Windows-only solution. Two strikes against JAM: you likely won't get any help at all.

gvb

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