Re: TI-H: Re: TI Robotics

To: ti-hardware@lists.ticalc.org
Subject: Re: TI-H: Re: TI Robotics
From: Grant Stockly <gussie@alaska.net>
Date: Thu, 29 Oct 1998 21:33:17 -0900
Delivered-To: ti-hardware-outgoing@towerguard.unix.edu.sollentuna.se
In-Reply-To: <19981030051823.28368.qmail@hotmail.com>
Reply-To: ti-hardware@lists.ticalc.org


>Ok, im going to order some of those parts and experiment with the 8
>lines, but ive got a question on the inputing of data.  Lets say I make
>4 of those 8 IO lines into buttons.  How can I get the TI to distinguish
>between which button was pressed on what line?
>
>
>>>What do you mean by that, where did that 164 come from? :)
>>>
>>>
>>>>Yeah...  The 164 is an IC...
>>
>>The 164 is a shift register that will turn 2 I/O lines (clock/data)
>into 8.
>>And more if you use BCD and counter chips.  :)
>>
>>Grant

GEt a 4 bit counter and set it on 13 so it counts [14-15] over and over and
switches between a 164 and 165.  That way you input a byte, then receive a
byte...then input, then receive. ect.

Grant

References:

TI-H: Re: TI Robotics

From: "Tom Smith" <munkyjr@hotmail.com>

Prev: TI-H: Re: TI Robotics
Next: TI-H: lcd voltage
Index(es):
- Main
- Thread