Problems with a serial device

[Dani Rodríguez]

Hi all,

I have a device that works linked to the serial port of a PC. Throw this
serial port some commands are sent to return some information. I am trying
to do a circuit that allows me, after of send a command throw the serial
port, desconect the device from the PC maintening the suply by a baterry,
and store autonomly ina temporal memory all sent by the device for, later,
plug it to the PC and download the info stored in this temporal memory. I do
not know if I have explained myself correctly but I have been trying to do
this assembly for a long time and I have test some things that do not
respond correctly. If someone have done something similar or knows where
could I find this info or someone that could give me it, I will thank a lot
any help.

Thank you in advance

 

[Duncan McNiven]

Something like this?

http://www.zen30649.zen.co.uk/product_antilog.html

--
Duncan

 

[CWatters]

"Dani Rodríguez" <saident@ya.com> wrote in message
news:chp899$qdu$1@news.ya.com...

Hi all,

I have a device that works linked to the serial port of a PC. Throw this
serial port some commands are sent to return some information. I am trying
to do a circuit that allows me, after of send a command throw the serial
port, desconect the device from the PC maintening the suply by a baterry,
and store autonomly ina temporal memory all sent by the device for, later,
plug it to the PC and download the info stored in this temporal memory. I
do
not know if I have explained myself correctly but I have been trying to do
this assembly for a long time and I have test some things that do not
respond correctly. If someone have done something similar or knows where
could I find this info or someone that could give me it, I will thank a
lot
any help.

You don't say what the problem is.

When you reconnect the device do you flush the buffers in the serial port at
both ends?

This "serial device test utility" is quite useful if you want to send
packets of data with headers and footers and monitor what comes back.

http://www.hackconsulting.com/download.html