RE: TI-H: magnetic reader
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RE: TI-H: magnetic reader
but what signals on the serial port can i use? i know i can use rx, but what
other pins?
> -----Original Message-----
> From: owner-ti-hardware@lists.ticalc.org
> [mailto:owner-ti-hardware@lists.ticalc.org]On Behalf Of Alejandro Paz
> Sent: Tuesday, January 23, 2001 7:35 PM
> To: ti-hardware-digest@lists.ticalc.org
> Subject: TI-H: magnetic reader
>
>
>
> Magnetics readers has two signals (three).
> 1. Card present
> 2 Clock
> 3 Data.
>
> The clock rate depends on the speed you pass the card and the data
> density, if you have a 75bpi card and you pass it at 1"/s the you have
> 75hz .
>
> i think you'll need a interrupt based system, or with poll :
>
> look at card presset
> card pressent asserted:
> poll clock, in the falling edge sample data.
> that's all.
>
> if you need further explanations let me know.
>
>
>
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