Hello all,
i assembled an DS2482-800 (8 channel 1-wire i2c busmaster) on the
Adafruit Prototyping Pi Plate Kit
(http://www.adafruit.com/products/801) - i only connect 3.3V, GND,
SDA, SCL directly with the DS2482.
AD0,AD1,AD2 with GND
(http://datasheets.maximintegrated.com/en/ds/DS2482-800.pdf).
Software config:
Commentet out the blacklisting (because bcm2708 uses the GPIO pins):
----------------------------------
root@PiDoor:~# cat /etc/modprobe.d/raspi-blacklist.conf
# blacklist spi and i2c by default (many users don't need them)
#blacklist spi-bcm2708
#blacklist i2c-bcm2708
----------------------------------
Many modules loaded, maybe i must blacklist some to make the DS2482-800 work?
----------------------------------
root@PiDoor:~# lsmod
Module Size Used by
i2c_dev 5277 0
snd_bcm2835 18169 0
snd_soc_pcm512x 8909 0
snd_soc_wm8804 7833 0
snd_soc_bcm2708_i2s 5486 0
regmap_mmio 2818 1 snd_soc_bcm2708_i2s
snd_soc_core 128166 3
snd_soc_pcm512x,snd_soc_wm8804,snd_soc_bcm2708_i2s
regmap_spi 1913 3 snd_soc_pcm512x,snd_soc_wm8804,snd_soc_core
snd_pcm_dmaengine 5481 1 snd_soc_core
snd_pcm 81518 3 snd_bcm2835,snd_soc_core,snd_pcm_dmaengine
snd_page_alloc 5168 1 snd_pcm
regmap_i2c 1657 3 snd_soc_pcm512x,snd_soc_wm8804,snd_soc_core
snd_compress 8136 1 snd_soc_core
snd_seq 54581 0
snd_timer 20353 2 snd_pcm,snd_seq
snd_seq_device 6485 1 snd_seq
leds_gpio 2055 0
led_class 4119 1 leds_gpio
snd 61518 7
snd_bcm2835,snd_soc_core,snd_timer,snd_pcm,snd_seq,snd_seq_device,snd_compress
spi_bcm2708 4808 0
i2c_bcm2708 4719 0
----------------------------------
Should the DS2482-800 not visible in the DMESG log?
----------------------------------
root@PiDoor:~# dmesg | grep i2c
[ 5.317391] bcm2708_i2c_init_pinmode(0,0)
[ 5.508709] bcm2708_i2c_init_pinmode(0,1)
[ 5.515670] bcm2708_i2c bcm2708_i2c.0: BSC0 Controller at
0x20205000 (irq 79) (baudrate 100000)
[ 5.971077] bcm2708_i2c_init_pinmode(1,2)
[ 5.977836] bcm2708_i2c_init_pinmode(1,3)
[ 6.079191] bcm2708_i2c bcm2708_i2c.1: BSC1 Controller at
0x20804000 (irq 79) (baudrate 100000)
[ 12.763614] i2c /dev entries driver
----------------------------------
Seems to be correct, internal and "external" i2c bus:
----------------------------------
root@PiDoor:~# i2cdetect -l
i2c-0 i2c bcm2708_i2c.0 I2C adapter
i2c-1 i2c bcm2708_i2c.1 I2C adapter
----------------------------------
Pi Hardware Version 2 - i2c-1 is the external bus:
----------------------------------
root@PiDoor:~# i2cdetect -y 1
0 1 2 3 4 5 6 7 8 9 a b c d e f
00: -- -- -- -- -- -- -- -- -- -- -- -- --
10: -- -- -- -- -- -- -- -- 18 -- -- -- -- -- -- --
20: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
30: -- -- -- -- -- -- -- -- -- -- -- UU -- -- -- --
40: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
50: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
60: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --
70: -- -- -- -- -- -- -- --
----------------------------------
Latest kernel (updated with apt-get dist-upgrade):
----------------------------------
root@PiDoor:~# uname -a
Linux PiDoor 3.12.22+ #691 PREEMPT Wed Jun 18 18:29:58 BST 2014 armv6l GNU/Linux
----------------------------------
Buildin owfs:
----------------------------------
root@PiDoor:~# owserver --version
owserver version:
2.8p15
libow version:
2.8p15
root@PiDoor:~# owserver --i2c=/dev/i2c-1 -p 4304 --error_level=9 --foreground
Segmentation fault
----------------------------------
latest one (2.9p5) - self compiled:
----------------------------------
root@PiDoor:~# /opt/owfs/bin/owserver --i2c=/dev/i2c-1 -p 4304
--error_level=9 --foreground
DEBUG: ow_daemon.c:(166) main thread id = 3069968912
DEBUG: ow_avahi_link.c:(71) Avahi support: libavahi-client loaded successfully
DEBUG: ow_avahi_link.c:(73) Avahi library function found: avahi_client_errno
DEBUG: ow_avahi_link.c:(74) Avahi library function found: avahi_client_free
DEBUG: ow_avahi_link.c:(75) Avahi library function found: avahi_client_new
DEBUG: ow_avahi_link.c:(76) Avahi library function found:
avahi_client_get_domain_name
DEBUG: ow_avahi_link.c:(77) Avahi library function found:
avahi_entry_group_add_service
DEBUG: ow_avahi_link.c:(78) Avahi library function found:
avahi_entry_group_commit
DEBUG: ow_avahi_link.c:(79) Avahi library function found:
avahi_entry_group_is_empty
DEBUG: ow_avahi_link.c:(80) Avahi library function found:
avahi_entry_group_new
DEBUG: ow_avahi_link.c:(81) Avahi library function found:
avahi_entry_group_reset
DEBUG: ow_avahi_link.c:(83) Avahi library function found:
avahi_service_resolver_free
DEBUG: ow_avahi_link.c:(84) Avahi library function found:
avahi_service_resolver_new
DEBUG: ow_avahi_link.c:(85) Avahi library function found:
avahi_service_browser_free
DEBUG: ow_avahi_link.c:(86) Avahi library function found:
avahi_service_browser_new
DEBUG: ow_avahi_link.c:(98) Avahi support: libavahi-common loaded
successfully.
DEBUG: ow_avahi_link.c:(100) Avahi library function found:
avahi_simple_poll_free
DEBUG: ow_avahi_link.c:(101) Avahi library function found:
avahi_simple_poll_get
DEBUG: ow_avahi_link.c:(102) Avahi library function found:
avahi_simple_poll_loop
DEBUG: ow_avahi_link.c:(103) Avahi library function found:
avahi_simple_poll_new
DEBUG: ow_avahi_link.c:(104) Avahi library function found:
avahi_simple_poll_quit
DEBUG: ow_avahi_link.c:(105) Avahi library function found: avahi_strerror
CALL: ow_parsename.c:(102) path=[]
DEBUG: owlib.c:(81) Globals temp limits 0C 100C (for simulated adapters)
CONNECT: ow_ds2482.c:(396) Found an i2c device at /dev/i2c-1 address 18
DEBUG: ow_ds2482.c:(514) ok
CONNECT: ow_ds2482.c:(425) i2c device at /dev/i2c-1 address 18 appears
to be DS2482-x00
CONNECT: ow_ds2482.c:(701) DS2482-800 (Eight channels)
Segmentation fault
----------------------------------
I'm unable to get the DS2482-800 running :cry:
How i can check the hardware for correct function?
Or maybe something is wrong with owfs...
Bests
Thomas Oeding
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