switching between mainio and auxio
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Posts: 46,084
I've got a BS2p40, and during my program, I have to switch back and
forth between the MAINIO pins and the AUXIO pins. To do this, I just
insert a line saying "MAINIO" or "AUXIO" before each change.
Is there an easier way to do this? For instance, if I'm looking for
an input on the MAINIO pins, and when I get an input, I have to light
a LED that's connected to the AUXIO pins, and then go back to looking
for an input on the MAINIO pins.
Any suggestions? Don't say I should move everything to one side or
the other because I've got 30 I/O's right now, and I've arranged them
as best I can.
forth between the MAINIO pins and the AUXIO pins. To do this, I just
insert a line saying "MAINIO" or "AUXIO" before each change.
Is there an easier way to do this? For instance, if I'm looking for
an input on the MAINIO pins, and when I get an input, I have to light
a LED that's connected to the AUXIO pins, and then go back to looking
for an input on the MAINIO pins.
Any suggestions? Don't say I should move everything to one side or
the other because I've got 30 I/O's right now, and I've arranged them
as best I can.
Comments
Set_Output:
IOTERM outPin / 16 ' select io bank
IF (outLvl = 1) THEN ' 1 = high
HIGH (outPin // 16)
ELSE ' 0 = low
LOW (outPin // 16)
ENDIF
RETURN
Of course, now you'll need a byte variable for your pin and a bit
variable for its new state.
-- Jon Williams
-- Parallax
Original Message
From: andy_watson5 [noparse]/noparse]mailto:[url=http://forums.parallaxinc.com/group/basicstamps/post?postID=8be_W8Fw3gwx1ENWuofcQ33ubREx9-0D5uMYmNwfppd6bEdC16MJl-vfDngKVLINXO5OD8zqwrbOOg]andywatson@m...[/url
Sent: Friday, February 27, 2004 3:01 PM
To: basicstamps@yahoogroups.com
Subject: [noparse][[/noparse]basicstamps] switching between mainio and auxio
I've got a BS2p40, and during my program, I have to switch back and
forth between the MAINIO pins and the AUXIO pins. To do this, I just
insert a line saying "MAINIO" or "AUXIO" before each change.
Is there an easier way to do this? For instance, if I'm looking for
an input on the MAINIO pins, and when I get an input, I have to light
a LED that's connected to the AUXIO pins, and then go back to looking
for an input on the MAINIO pins.
Any suggestions? Don't say I should move everything to one side or
the other because I've got 30 I/O's right now, and I've arranged them
as best I can.
There is the POLLOUT command, which allows you to link the state of
an output pin to the state of an input pin. That works automatically
in the background. But it is quite limited when you have more than
one output depending on more than one input.
I don't know of any easy way, except to group functions so that the
ones that are used together are on one side of the other. (So I did
mention it!) It would not make sense for example to have the pins
for an LCD cross the pin groups boundary.
>I've got a BS2p40, and during my program, I have to switch back and
>forth between the MAINIO pins and the AUXIO pins. To do this, I just
>insert a line saying "MAINIO" or "AUXIO" before each change.
>
>Is there an easier way to do this? For instance, if I'm looking for
>an input on the MAINIO pins, and when I get an input, I have to light
>a LED that's connected to the AUXIO pins, and then go back to looking
>for an input on the MAINIO pins.
>
>Any suggestions? Don't say I should move everything to one side or
>the other because I've got 30 I/O's right now, and I've arranged them
>as best I can.