OK it just happened again.  Started my python program and it failed
with 
DEFAULT: ow_reconnect.c:TestConnection(52) Failed to reconnect DS9097
bus master!

In a terminal I ran
owhttpd -p 3001 -d /dev/ttyS2 --debug

and this gave me

CONNECT: ow_avahi_link.c:OW_Load_avahi_library(72) No Avahi support.
Library libavahi-client couldn't be loaded
CONNECT: ow_dnssd.c:OW_Load_dnssd_library(136) Zeroconf/Bonjour is
disabled since dnssd library isn't found
   CALL: ow_parsename.c:FS_ParsedName_anywhere(90) path=[]
  DEBUG: owlib.c:SetupTemperatureLimits(79) Globals temp limits 0C 100C
(for simulated adapters)
  DEBUG: ow_ds9097U.c:DS2480_initialize_repeatedly(259) Attempt #0 to
initialize the DS9097U
  DEBUG: ow_ds9097U.c:DS2480_big_reset_serial(337) Send the initial
reset to the bus master.
  DEBUG: ow_ds9097U.c:DS2480_configuration_read(467) wrong response (70
not 00)
  DEBUG: ow_ds9097U.c:DS2480_set_baud_control(488) Failed first attempt
at resetting baud rate of bus master /dev/ttyS2
  DEBUG: ow_ds9097U.c:DS2480_configuration_read(467) wrong response (70
not 00)
  DEBUG: ow_ds9097U.c:DS2480_set_baud_control(493) Failed second attempt
at resetting baud rate of bus master /dev/ttyS2
  DEBUG: ow_ds9097U.c:DS2480_configuration_read(467) wrong response (70
not 00)
  DEBUG: ow_ds9097U.c:DS2480_set_baud_control(488) Failed first attempt
at resetting baud rate of bus master /dev/ttyS2
  DEBUG: ow_ds9097U.c:DS2480_configuration_read(467) wrong response (70
not 00)
  DEBUG: ow_ds9097U.c:DS2480_set_baud_control(493) Failed second attempt
at resetting baud rate of bus master /dev/ttyS2
  DEBUG: ow_ds9097U.c:DS2480_configuration_write(451) wrong response (CD
not 44)
  DEBUG: ow_ds9097U.c:DS2480_big_reset_serial(337) Send the initial
reset to the bus master.
  DEBUG: ow_ds9097U.c:DS2480_configuration_read(467) wrong response (70
not 00)
  DEBUG: ow_ds9097U.c:DS2480_set_baud_control(488) Failed first attempt
at resetting baud rate of bus master /dev/ttyS2
  DEBUG: ow_ds9097U.c:DS2480_configuration_read(467) wrong response (70
not 00)
  DEBUG: ow_ds9097U.c:DS2480_set_baud_control(493) Failed second attempt
at resetting baud rate of bus master /dev/ttyS2
  DEBUG: ow_ds9097U.c:DS2480_configuration_read(467) wrong response (70
not 00)
  DEBUG: ow_ds9097U.c:DS2480_set_baud_control(488) Failed first attempt
at resetting baud rate of bus master /dev/ttyS2
  DEBUG: ow_ds9097U.c:DS2480_configuration_read(467) wrong response (70
not 00)
  DEBUG: ow_ds9097U.c:DS2480_set_baud_control(493) Failed second attempt
at resetting baud rate of bus master /dev/ttyS2
  DEBUG: ow_ds9097U.c:DS2480_configuration_write(451) wrong response (CD
not 44)


I opened up a browser on http://localhost:3001/ and it says unable to
connect.

The serial port looks OK
mick@mick-desktop:~$ dmesg | grep tty
[    0.000000] console [tty0] enabled
[    0.489257] serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
[    0.489554] 00:09: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
[   14.681524] 0000:03:07.0: ttyS1 at I/O 0xdf00 (irq = 17) is a 16550A
[   14.681616] 0000:03:07.0: ttyS2 at I/O 0xde00 (irq = 17) is a 16550A
mick@mick-desktop:~$ 


I then rebooted and it all works fine!

Any idea what could cause this problem?

Thanks

Mick



------------------------------------------------------------------------------
Special Offer-- Download ArcSight Logger for FREE (a $49 USD value)!
Finally, a world-class log management solution at an even better price-free!
Download using promo code Free_Logger_4_Dev2Dev. Offer expires 
February 28th, so secure your free ArcSight Logger TODAY! 
http://p.sf.net/sfu/arcsight-sfd2d
_______________________________________________
Owfs-developers mailing list
Owfs-developers@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/owfs-developers

Reply via email to