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Discussion Groups | BasicX | BX01 Reset Switch
Discussion forum for the BasicX family of microcontroller chips.
BX01 Reset Switch - adriaanswan - Apr 10 6:39:09 2006
Hi,
I am busy designing a base board for the BX01. Several of these boards
will be networked together each with a specific function. The only
problem is I am limited to 100mm x 80mm, single sided for the PCB, and
thus I can not fit everything I would want on the board.
My question is about the Reset switch. Is it really necessary and if
not must PIN9 be connected to something, eg. GND or VCC?
______________________________
Stellaris® MCU Family: New Parts, New Package, New Price.
(You need to be a member of basicx -- send a blank email to basicx-subscribe@yahoogroups.com )
I am busy designing a base board for the BX01. Several of these boards
will be networked together each with a specific function. The only
problem is I am limited to 100mm x 80mm, single sided for the PCB, and
thus I can not fit everything I would want on the board.
My question is about the Reset switch. Is it really necessary and if
not must PIN9 be connected to something, eg. GND or VCC?
______________________________
Stellaris® MCU Family: New Parts, New Package, New Price.
(You need to be a member of basicx -- send a blank email to basicx-subscribe@yahoogroups.com )
Re: BX01 Reset Switch - Don Kirby - Apr 11 5:58:50 2006
You shouldn't have to have a reset switch. Left unconnected, it
should be fine, but if you're cautious, you could pull it high with a
pullup resistor. That might not even be necessary if there is an
internal pullup like the BX24.
My current design (with a BX24) has no reset switch, as there was no
place to put one. When a reset is needed, I simply cycle the power.
-Don
--- In b...@yahoogroups.com, "adriaanswan" wrote:
>
> Hi,
>
> I am busy designing a base board for the BX01. Several of these boards
> will be networked together each with a specific function. The only
> problem is I am limited to 100mm x 80mm, single sided for the PCB, and
> thus I can not fit everything I would want on the board.
>
> My question is about the Reset switch. Is it really necessary and if
> not must PIN9 be connected to something, eg. GND or VCC?
>
(You need to be a member of basicx -- send a blank email to basicx-subscribe@yahoogroups.com )
should be fine, but if you're cautious, you could pull it high with a
pullup resistor. That might not even be necessary if there is an
internal pullup like the BX24.
My current design (with a BX24) has no reset switch, as there was no
place to put one. When a reset is needed, I simply cycle the power.
-Don
--- In b...@yahoogroups.com, "adriaanswan"
>
> Hi,
>
> I am busy designing a base board for the BX01. Several of these boards
> will be networked together each with a specific function. The only
> problem is I am limited to 100mm x 80mm, single sided for the PCB, and
> thus I can not fit everything I would want on the board.
>
> My question is about the Reset switch. Is it really necessary and if
> not must PIN9 be connected to something, eg. GND or VCC?
>
(You need to be a member of basicx -- send a blank email to basicx-subscribe@yahoogroups.com )
ASCII schematic tool - Tom Becker - Apr 11 10:22:23 2006
Here's an ASCII schematic tool some might find handy:
http://www.tech-chat.de/download.html
An example:
Opto/mechanical feedback scheme
| _/ .-.
-||--o/ o--( X )--.
| | '-' |
| |
'-------------------'
(created by AACircuit v1.28.6 beta 04/19/05 www.tech-chat.de)
Tom
(You need to be a member of basicx -- send a blank email to basicx-subscribe@yahoogroups.com )
http://www.tech-chat.de/download.html
An example:
Opto/mechanical feedback scheme
| _/ .-.
-||--o/ o--( X )--.
| | '-' |
| |
'-------------------'
(created by AACircuit v1.28.6 beta 04/19/05 www.tech-chat.de)
Tom
(You need to be a member of basicx -- send a blank email to basicx-subscribe@yahoogroups.com )