Re: TI-H: CBL clone (METER)
[Prev][Next][Index][Thread]
Re: TI-H: CBL clone (METER)
well, the ones in our calcs is a 6Mhz that is crippled to ~2 Mhz. with the
'turbo' mode, it gets back up to the 6, or the 6.144Mhz wich is the max
clockable for that cpu version in the calcs.
instuctrions take anywhere from 2-15 t-cycles to run, so at an average of,
say, 8 t's per instruction, at 2 Mhz, that would be 2000000/8 instructions
per second, or abouit .25 mips~~250,000ips. the 200khz would be 200,000hz.
250000ips/200000hz=.125instructions per cycle.
I dont know. i dont really want to logically figure this out really. :)
i dont think it would be very possible, unless you used all the small
(~2-4tcycles) instuctions in the loop.
<shrug> again, i dont know.
:)
Jonathan
At 05:15 PM 11/12/98 -0600, you wrote:
>
>How fast does the Z-80 execute an instruction...I have a serial ADC that I
>would like to connect directly to my calc but I would have to use the calc
>to provide a 200kHz clock to the chip and read back the data between clock
>cycles. Is the Z-80 fast enough to do something like this?
>
>
>
>
>At 12:29 AM 11/12/98 -0800, you wrote:
>>
>>I've started thinking how to design this circuit and i have a few
>>questions to whoever wants it. For the robitics, could you let me know
>>how many i/o ports you'd like? Also how many digital in, analog out,
>>etc.
>>For the meter, what for measurements, etc. BTW, would you like your
>>calc turned into a 1 MHz scope? I would so it probably get's into the
>>schematic anyway, but i'm asking it so i'd know what you think. I need
>>this information to satisfy everyone, so react.
>>
>>Sayonara,
>>
>>Neil
>>
>>
>>
>>
>>
>>_________________________________________________________
>>DO YOU YAHOO!?
>>Get your free @yahoo.com address at http://mail.yahoo.com
>>
>>
>
>
References: