1-Wire Filesystem for Linux -- Accessing the Dallas 1-wire network for sensors, memory, identity ()

Pascal Baerten | 3 Apr 2010 09:54

Re: BAE0910 and p33

Hi Japie,

are you seeing other devices on the bus ?
what are the params used to start your ow daemon ?
is there something connected on the on the tinyboard?
did you see the device with prior owfs versions?
did you get same issue on both devices?

Pascal

2010/4/3 Jaap Struyk <japie <at> minimumrisk.nl>

Hello,

I am fidling with a BAE0910 directly on the DS9490 usb adapter with
2.7p33 but the device doesn't show up.
The red led is on but the device is not listed, am I messing something up?

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Greetings Japie

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Jaap Struyk | 3 Apr 2010 13:09

Re: BAE0910 and p33

Op 03-04-10 09:54, Pascal Baerten schreef:

> Hi Japie,
> 
> are you seeing other devices on the bus ?
> what are the params used to start your ow daemon ?
> is there something connected on the on the tinyboard?
> did you see the device with prior owfs versions?
> did you get same issue on both devices?

Hello Pascal,

I am seeing other devices and tried with different parameters, the
tinyboard has nothing connected and both devices don't showup. (one has
a red led and the other orange, for the record)
Will try an earlier version...

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Jaap Struyk | 3 Apr 2010 13:30

Re: BAE0910 and p33

Op 03-04-10 13:09, Jaap Struyk schreef:

>> did you see the device with prior owfs versions?

p29 doesn't show it either, will led shine if wrong connected?

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Pascal Baerten | 3 Apr 2010 15:47

Re: BAE0910 and p33

I suspect a power issue.
To connect it right: from left to riht: Ground, +5v supply, DQ (1-wire)
Even with only gnd & dq, the led will lightly light on, but the chip will not be enough powered.
Do you use a separate power supply or power from usb? via a usb hub? powered?
Could you double check the presence of 5v from your cable ?
When connecting only gnd and +5v could you verify that led turn on, if you have a multimeter, measure the voltage on the screws.
When tinyboard is connected, are other devices showing up?

Could you connect the tinyboard only, then report the dmesg at moment you connect the ds9490?
you should see something like this:
[ 2430.256057] usb 2-2: new full speed USB device using uhci_hcd and address 2
[ 2430.481088] usb 2-2: configuration #1 chosen from 1 choice
[ 2430.559165] Driver for 1-wire Dallas network protocol.
[ 2430.573393] usbcore: registered new interface driver DS9490R
[ 2432.167097] w1_master_driver w1_bus_master1: Family fc for fc.990000000000.cc is not registered.
confirms ?

on owfs side, connect only the tinyboard and capture the output when starting your ow daemon with:
/opt/owfs/bin/owhttpd -u -p 81 --foreground --errorlevel 1
do you see this?
CONNECT: ow_ds9490.c:USB_next(623) Bus master found: 002/002
DEFAULT: ow_ds9490.c:DS9490_sub_open(555) Opened USB DS9490 bus master at 002/002.
DEFAULT: ow_ds9490.c:DS9490_detect_found(437) Set DS9490 002/002 unique id to FC 00 00 00 00 00 99 CC
CONNECT: ow_ds9490.c:DS9490_detect_low(336) USB DS9490 1/1 successful bound

Pascal

2010/4/3 Jaap Struyk <japie <at> minimumrisk.nl>

Op 03-04-10 13:09, Jaap Struyk schreef:

>> did you see the device with prior owfs versions?

p29 doesn't show it either, will led shine if wrong connected?

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Pascal
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Jaap Struyk | 3 Apr 2010 19:07

Re: BAE0910 and p33

Op 03-04-10 15:47, Pascal Baerten schreef:

> I suspect a power issue.
> To connect it right: from left to riht: Ground, +5v supply, DQ (1-wire)
> Even with only gnd & dq, the led will lightly light on, but the chip will
> not be enough powered.

OK, never suspected the absence of 5v would mess me up, I currently use
a bunch of sensors with only data and ground so no 5v line (yet)
available, will make one asap and let you know...

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Download Intel&#174; Parallel Studio Eval
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proactively, and fine-tune applications for parallel performance.
See why Intel Parallel Studio got high marks during beta.
http://p.sf.net/sfu/intel-sw-dev