Take a look at http://datasheets.maxim-ic.com/en/ds/DS9097U-009-DS9097U-S09.pdf
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Paul Alfille
Sent: Thursday, 17 August 2006 8:39 PM
To: [email protected]
Subject: Re: [Owfs-developers] Openwrt + serial 1wire
DTR or RTS for power.
It looks like you could use an external wall wart. Or steal power from the (?12V) input into the Linksys.
Perhaps there is al alternative to the MAX3223
Paul
On 8/17/06, Matt <[EMAIL PROTECTED]> wrote:Oh well, if DTR is where +5v needs to be it isn't there.I'm not sure where I can find +5v, the Max3223 uses 3.3v and that's what is supplied by the Linksys.Do I need to externally power the 1Wire devices then ?thanks
From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]] On Behalf Of Paul Alfille
Sent: Thursday, 17 August 2006 2:08 AM
To: [email protected]
Subject: Re: [Owfs-developers] Openwrt + serial 1wireHi Matt,
I assume you've chosen the correct tty port. Under bus.0/system/adapter you can see what adapter was fould. Under statistics/errors ou can see what errorsa re reported. Both would be helpful.
I am guessing that the MAX3223 pushes the voltage to 5V. The DS9097U (your adapter) gets its power from DTR. Is that at 5V?
Paul
On 8/16/06, Matt <[EMAIL PROTECTED]> wrote:
Hi,
I have my wrt54gl, now with openwrt running and using a MAX3223 I have added two serial ports.
I can connect with either port and send and receive data to and from my PC.I've added the various OWFS packages and I can see they are running, I have the OWFS web page up.
I have the serial 1Wire adaptor, grey with an RJ11 socket.The adaptor has been in use for a year or so, on an old laptop (the linksys is to replace the laptop) so I'm sure it and the sensors work.
The OWFS package isn't showing any devices.
I have DB9 pins 7+8 (RTS+CTS) connected, 4+6 (DTR+DSR) connected. Pins 2,3 and 5 (RD,TD,GND) connected to the MAX3223.
Have I connected this up corectly ?
Is being able to send data to a PC a good test of whether a 1Wire device will work ?Thanks
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