[Coco] Howto for Altera DE1?

Steven Hirsch snhirsch at gmail.com
Mon Jun 28 09:11:55 EDT 2010


On Mon, 28 Jun 2010, Steven Hirsch wrote:

> On Mon, 28 Jun 2010, Mark McDougall wrote:
>
>> Steven Hirsch wrote:
>> 
>>> ..and it did.  I brought up the control panel app under VMware and copied 
>>> what I believe is a proper coco3 rom image (32KB) to "flash" memory.
>> 
>> Did you do a "chip erase" first?
>
> Bingo!  That was the key step :-).  It started cooperating one heck of lot 
> better after that.  There _really_ needs to be a simple little checklist for 
> sake of idiots like myself.
>
>>> So, where to start?  Do I have a bad DE1 board?  Is there some sort of 
>>> assurance test for the onboard memory and ROM?
>> 
>> You should be able to read out the contents of the flash using the control 
>> panel to a file and compare it with the image you programmed.
>
> Yes, it comes back with the same CRC.
>
> Next issue.  The keyboard is dead.  However, I've seen discussion that 
> indicates a jumper change is required for 5V keyboards and will dig around 
> for that.

And, naturally, I cannot find said discussion - anywhere.  It's not 
documented in the DE1 manual either.

Anyone have the details on this?

Steve






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