[Coco] Howto for Altera DE1?

[Steven Hirsch]

On Sun, 27 Jun 2010, Aaron Wolfe wrote:

> I'm not sure if the files on the Yahoo group are current or not.  I
> can send you that last version Gary sent me, which may be more or less
> recent than what you have.
>
> In general steps, you must:
>
> 1. Load the CoCo 3 ROM at address 0 of the flash
> 2. Load the .sof into the board using the programmer
>
> That's really it.  I've heard you only need the .pof if you want to
> make the board start up in coco3 mode, I've never tried that.
>
> Switch settings of 0,1,2,3 and 7 on, rest off works here, I forget the
> purpose of all of them but 0 and 1 are the CPU speed control, and 8 9
> are the serial port speed control for drivewire, off off is 115k, off
> on is 230k, on off is 460k, on on is 920k. 115 and 460800k are tested,
> 920k probably won't ever work.

Man, am I my own worst enemy.  I never bothered to look closely enough to 
note that the buttons and switches are numbered from right to left!  Turns 
out that the keyboard becomes inoperative if switches 8 and/or 9 are on. 
I thought those were "1 and 2" :-(.  Now the keyboard is operational.

Next problem:  For some reason I cannot grasp, the sign-on ROM banner 
(Microsoft copyright, etc.) is no longer appearing at cold start or reset. 
Not sure what that's about.  I'm going to try and get DW working next.

What a comedy of errors!  Hopefully all this blundering around will help 
in developing a user guide.

Steve


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