[Coco] So, how do I make Drivewire go?

[Tormod Volden]

On Mon, Sep 23, 2013 at 10:11 PM, Christopher Smith <csmith at wolfram.com> wrote:
> That's the file I'm using, though I can't _guarantee_ that my CoCo is unmodded.  I'm not the first owner, and somebody did throw a CoCo 3 keyboard onto it, so there's a chance they changed some other stuff around as well.  Will using the HDBDW3CC1 ROM file if they put a newer op-amp in?  I could always grab the CoCo 2 ROM, set the servers to CoCo 2 mode, and see what happens.  Worst case I suspect is precisely the same problem I have now.

Just to make that clear: The only difference between the HDBDW3CC1 and
the HDBDW3CC2 ROM file is the baud rate. At the normal 0.9 MHz CPU
clock rate, the -CC1 file runs at 38400 baud and the -CC2 at 57600
baud. So please check that the server config corresponds to this.

The 741 op-amp used as an inverter on the CoCo1 bit banger port has
poor bandwidth so it limits the usable baud rate to 38400. If I
understand correctly that is the only reason for running only 38400 on
the CoCo1. If you replace the 741 with something faster you can run
57600 (or 115200 with DATurbo).

Tormod