Re: [ECOS] Redboot and edb7211

["Lewin A.R.W. Edwards" <larwe@larwe.com>]

Hi Wilson,

>trouble getting redboot running on my Cirrus logic 7211 board and I was
>wondering if anyone had any experience with it. I tried the prebuilt

I am working with the EDB7212 but it's essentially the same board...

>binaries from anoncvs but when I reset the board it complains of a checksum
>error. I see the redboot banner but after the checksum error nothing

This is PROBABLY not the problem you're experiencing, but I have had 
trouble with my EDB7212s (I have two) wherein the NOR flash [i.e. the 
bootable flash memory] will spontaneously go bad. We have one that travels 
in the field inside a working demo, and every couple of weeks it comes back 
here with corrupt flash. So my first thought when getting a checksum error 
would be just to re-flash it.

>Also I'd like to build my own redboot images. I used the windows config tool
>to configure for ebd7xxx board and selected the redboot package. I built it
>for ROM and flashed it to my 7211 board. When I reset it nothing happens.
>The LED status doesn't come on...nothing. Has anyone had any experience
>building redboot for this board?

I used the command-line tools, running under Linux, and had no problem with 
this. However note that I did find something odd with the edb7xxx 
templates: if you use the "net" template instead of using the default 
template and adding ethernet support, the result was unbootable as a ROM 
application. So I think you may have been bitten by a similar problem. 
Jonathan (I think) posted a specific list of commands for building redboot 
recently, that is the specific set of commands I used.

=== Lewin A.R.W. Edwards (Embedded Engineer)
Work: http://www.digi-frame.com/
Personal: http://www.zws.com/ and http://www.larwe.com/

"... a man who is endowed with real qualities of leadership will be tempted 
to refrain from taking part in political life; because [...] the situation 
does not call for a man who has a capacity for constructive statesmanship 
but rather for a man who is capable of bargaining for the favour of the 
majority. Thus the situation will appeal to small minds and will attract 
them accordingly."