I've sent this message yesterday but it didn't appear in the list.
I'm trying to develop an expansion board for Tobi.
There are just buffers and optocouplers for several I/Os in the expansion
Additionally, I'm using a voltage regulator (http://goo.gl/gnkt7D) to feed
all the expansion and Tobi together.
Since the regulator output is 5V, I decided to bypass the tobi power input.
Removed L11, FB2, C32, and C39.
Applying 5V output of Murata regulator to Tobi's V_BATT_5 directly.
Therefore, I'm able to use 7-36V source to feed all the board.
There seems no problem electrically since V_BATT_5 is 5V, then all other
voltages such as 3.3V and 1.8V are being successfully generated.
Gumstix boots with no problem except a message about the Caspa camera.
[ OK ] Started Network Service.
[ 15.618133] omap3isp supply VDD_CSIPHY1 not found, using dummy regulator
[ 15.721038] cfg80211: Calling CRDA to update world regulatory domain
[ OK ] Started Login Service.
Starting Serial Getty on ttyGS0...
[ OK ] Started Serial Getty on ttyGS0.
[ 15.856567] omap3isp supply VDD_CSIPHY2 not found, using dummy regulator
Starting LXDE Display Manager...
[ OK ] Started LXDE Display Manager.
[ 15.979644] omap3isp omap3isp: Revision 15.0 found
[ 15.984863] omap-iommu omap-iommu.0: isp: version 1.1
[ OK ] Found device /dev/ttyO2.
Starting Serial Getty on ttyO2...
[ 16.118133] libertas_sdio: Libertas SDIO driver
[ OK ] Started Serial Getty on ttyO2.
[ OK ] Reached target Login Prompts.
[ 16.242980] libertas_sdio: Copyright Pierre Ossman
[ 16.380187] mt9v032 3-005c: Probing MT9V032 at address 0x5c
[ OK ] Reached target Sound Card.
[ 16.824493] omapdss OVERLAY error: check_overlay: paddr cannot be 0
[ 16.847839] omapdss OVERLAY error: check_overlay: paddr cannot be 0
[ 16.871063] omapfb omapfb: setup_plane failed
[ 17.494140] omap_i2c omap_i2c.3: controller timed out
[ 17.628967] mt9v032 3-005c: MT9V032 power up failed
[ 17.822357] isp_register_subdev_group: Unable to register subdev mt9v032
[ 20.562194] libertas_sdio mmc1:0001:1: (unregistered net_device):
00:19:88:18:3c:4a, fw 9.70.20p0, cap 0x00000303
[ 20.601501] libertas_sdio mmc1:0001:1: wlan0: Marvell WLAN 802.11 adapter
[ OK ] Found device /sys/subsystem/net/devices/wlan0.
When it comes to "Probing MT9V032 at address 0x5c" line, Caspa LED turns on
Gumstix boots to login successfully, though. I can login and use it
flawlesly except the camera.
I suspect there is a problem with the power supply since it says "supply
But it's strange because all the suplly voltages are being generated.
May there be a problem with the COMMON_SHIELD because the varistors are not
connected to the input source anymore?
Thanks in advance,
Aydın Tarık Zengin, Ph.D.