[argyllcms] Re: Calibrating the DTP94
- From: Roger Breton <graxx@xxxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Tue, 21 Nov 2006 20:22:45 -0500
Gerard,
> The bit rate of 390 bits/s (i.e. 1 / 2.56ms) is rather unusual, and the
> framing (3 start bits low followed by one start bit high in front of the
> data) is rather unusual too.
You got me :(
> I'm not sure, whether the UART of a PC's
> RS232 interface can be programmed to handle these frames directly (the
> frames could be basically treated as if they were standard async frames
> wih 1 start bit, 11 data bits, no parity and 2 stop bits, if the upper
> three data bits are stripped off afterwards, but I'm not sure, wheter
> the UART in the PC can handle 11 data bits, I think it can handle just
> 8). So I'm not sure, whether simply interfacing of the "Data out" line
> to the RS232 RxD would make sense.
>
> Not specified seems to be the voltage level of "SCK", and the expected
> input voltage levels for "Busy" and "Measurement Request". Possibly
> TTL-Level?
I would not know, for sure
> Gerhard
Thank's for taking the time to look at the specs.
Regards,
Roger Breton | Laval, Canada | graxx@xxxxxxxxxxxx
http://pages.infinit.net/graxx
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