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by Andre-W
Sun Aug 12, 2012 3:03 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: kernel patch for Dallas 1-wire interface
Replies: 227
Views: 158629

Re: kernel patch for Dallas 1-wire interface

I think you need to re-install it because of the new kernel. But since i didn't now this installer/stick its just assumed. But i think it should work then.
by Andre-W
Sun Aug 12, 2012 2:38 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: kernel patch for Dallas 1-wire interface
Replies: 227
Views: 158629

Re: kernel patch for Dallas 1-wire interface

You need to compile the kernel by yourself with the patch or use an existing, already patched kernel. Simply setting some variables doesn't works. If your DS18S20 is getting hot its "hot-wired" (short-circuited) - i'm sure you have interchanged the polarity (GND => 3V3 / 3V3 => GND). Please notice t...
by Andre-W
Tue Jul 31, 2012 8:18 am
Forum: General discussion
Topic: need remote power switch
Replies: 5
Views: 5511

Re: need remote power switch

I think watchdog timer will fits best for this intent. You can define your maximum acceptable load/ram parameters or if you want to check something more than the default cases you can create own checks which will cause a reboot if they fail. Of course there are some further solutions - for example a...
by Andre-W
Mon Jul 23, 2012 10:52 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: kernel patch for Dallas 1-wire interface
Replies: 227
Views: 158629

Re: kernel patch for Dallas 1-wire interface

Yes i already did - I've tried some resistors starting from 470 to 10k. I've also tested another RPi Board and another GPIO Ports in the kernel patch.
by Andre-W
Mon Jul 23, 2012 5:40 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: kernel patch for Dallas 1-wire interface
Replies: 227
Views: 158629

Re: kernel patch for Dallas 1-wire interface

Yes, i've used them with Arduino without problems.
by Andre-W
Mon Jul 23, 2012 5:15 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: kernel patch for Dallas 1-wire interface
Replies: 227
Views: 158629

Re: kernel patch for Dallas 1-wire interface

2.2k resistor sadly dosen't changed anything, it still does not work.

No its not in the officall raspberian-image. You need to use Frank's Kernel or to compile it by yourself.
by Andre-W
Sun Jul 22, 2012 3:11 pm
Forum: Debian
Topic: Allocation failure after kernel compilation
Replies: 1
Views: 950

Re: Allocation failure after kernel compilation

Forget to mentioned:

The dmesg-info before this failure tells:

Code: Select all

EXT4-fs (mmcblk0p2): re-mounted. Opts: (null)
Is the error after that maybe a configuration error of kernel .config and has somethin to do with EXT4-fs?

Best regards,

André
by Andre-W
Sun Jul 22, 2012 3:07 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: kernel patch for Dallas 1-wire interface
Replies: 227
Views: 158629

Re: kernel patch for Dallas 1-wire interface

Hi all, thanks @Frank for this patch. I've included it in my kernel (actual bootc kernel) and compiled it today. So far, everything wents well - But i does not detects my DS18B20. I only get the following output: ls /sys/bus/w1/devices/w1_bus_master1 driver w1_master_add w1_master_pointer w1_master_...
by Andre-W
Sat Jul 21, 2012 9:32 pm
Forum: Debian
Topic: Allocation failure after kernel compilation
Replies: 1
Views: 950

Allocation failure after kernel compilation

Hi all, i've compiled my RPi kernel today and have a little problem with an allocation failure. While booting the RPi (or displaying dmesg) i see se following issue: vmalloc: allocation failure: 0 bytes modprobe: page allocation failure: order:0, mode:0xd0 Backtrace: Function entered at [<c0011738>]...
by Andre-W
Mon Jul 16, 2012 2:05 pm
Forum: Beginners
Topic: Problems with booting RaspberryPI
Replies: 18
Views: 3171

Re: Problems with booting RaspberryPI

SD-Card is a good keyword: I have had similiar problems when using a "normal" SD-Card (No SDHC-Card).

Edit: My SDHC-Card is also 16GB, from Transcend, and it works like a charm.
by Andre-W
Sat Jul 07, 2012 7:08 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: I2C Device (DS1307 RTC) not detected
Replies: 11
Views: 14396

Re: I2C Device (DS1307 RTC) not detected

Sorry, forgot to mention - after modprobe rtc-ds1307 you need to create the device via "echo ds1307 0x68 > /sys/class/i2c-adapter/i2c-0/new_device".

Finally after that you can start using hwclock.

Best regards,

André
by Andre-W
Fri Jul 06, 2012 11:52 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: I2C Device (DS1307 RTC) not detected
Replies: 11
Views: 14396

Re: I2C Device (DS1307 RTC) not detected

Hi, yes, you just need load the kernel module via modprobe "modprobe rtc-ds1307" (as ksangeelee said, too). Then you should be able to read the time from the HW-Clock via "hwclock -r". If you set up the DS1307 the first time this time will be uncorrect for sure. The best is to sync your system-clock...
by Andre-W
Thu Jul 05, 2012 11:57 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: I2C Device (DS1307 RTC) not detected
Replies: 11
Views: 14396

Re: I2C Device (DS1307 RTC) not detected

@ksangeelee: Yes i dit. Thank you!

@ait: No - that was it, i've grounded it only with the battery - Now i2cdetect found it directly. Thank you!

I just need to check now why my hwclock cannot access it ;)

Thank you guys very much!

Best regards,

André
by Andre-W
Thu Jul 05, 2012 9:39 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: I2C Device (DS1307 RTC) not detected
Replies: 11
Views: 14396

Re: I2C Device (DS1307 RTC) not detected

Oh sure - logical - what a stupid error :) Thank you.

But actually it doesn't works - it doesn't detects the device. Hmmm.

Best regards,

André
by Andre-W
Thu Jul 05, 2012 7:26 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: I2C Device (DS1307 RTC) not detected
Replies: 11
Views: 14396

I2C Device (DS1307 RTC) not detected

Hi all, yesterday i've tried to attach a DS1307 RTC to I2C of my RPi. dmesg tells me that i2c was loaded: [ 4.909936] bcm2708_spi bcm2708_spi.0: SPI Controller at 0x20204000 (irq 80) [ 5.059735] bcm2708_i2c bcm2708_i2c.0: BSC0 Controller at 0x20205000 (irq 79) [ 5.166121] bcm2708_i2c bcm2708_i2c.1: ...
by Andre-W
Sat Jun 30, 2012 8:14 pm
Forum: General programming discussion
Topic: Fritzing part
Replies: 3
Views: 2632

Re: Fritzing part

Since i searched this part too but haven't found it till today i've decided to build one:

http://binerry.de/post/26227980624/rasp ... tzing-part

Hope it works for you.

Regards,

André
by Andre-W
Fri Jun 08, 2012 11:15 am
Forum: General discussion
Topic: VisualBoyAdvance / Mednafen
Replies: 1
Views: 2914

VisualBoyAdvance / Mednafen

Hi there, has anybody tried to install visualboyadvance (gameboy emulator) or mednafen (multi platform emulator) yet? I've installed both on the debian 6 squeeze image and discovered, that the emulation is extrem slowly. Playing a gameboy-game results in a very lagging gaming experience. Has anyone ...
by Andre-W
Sat Jun 02, 2012 6:48 am
Forum: Debian
Topic: LXDE Keymap
Replies: 6
Views: 6165

LXDE Keymap

Hi all, i have a strange issue with the keymapping within LXDE. I've configured my keyboard with dpkg and so far everything works well - but only on console. On console i can use my setuped keymapping (qwertz) and all keyboard keys are detected (including german umlauts) correctly. But if i start LX...
by Andre-W
Sat Jun 02, 2012 5:41 am
Forum: Beginners
Topic: Pairing my Bluetooth Keyboard/touchpad
Replies: 29
Views: 81703

Re: Pairing my Bluetooth Keyboard/touchpad

I had the same issue yesterday. You need to declare the dependencies for the script for LSB. I've just copied the declaration from the bluetooth init script and changed the required-start dependency to bluetooth for making sure that the script just starts if bluetooth is started. Just add the follow...
by Andre-W
Fri Jun 01, 2012 5:39 pm
Forum: Beginners
Topic: Problems with booting RaspberryPI
Replies: 18
Views: 3171

Re: Problems with booting RaspberryPI

Oh hard ... It was the power supply ... i've switched the power supply to one with 5V and 850mA ... now it boots ...

Thank you all very much!
by Andre-W
Fri Jun 01, 2012 5:36 pm
Forum: Beginners
Topic: Problems with booting RaspberryPI
Replies: 18
Views: 3171

Re: Problems with booting RaspberryPI

With an usb power adapter (5V, 180mA)
by Andre-W
Fri Jun 01, 2012 4:30 pm
Forum: Beginners
Topic: Problems with booting RaspberryPI
Replies: 18
Views: 3171

Re: Problems with booting RaspberryPI

Sadly it doesnt work with qtonpi, too. I've recorded the monitor and its the same issue as with the debian image. It reboots after "Registering the dns_resolver key type VFP support v0.3: Implementor 41 architecture 1 part Z0 variant b rev. 5 Waiting for root device /dev/mmcblk0pZ..." I've also trie...
by Andre-W
Fri Jun 01, 2012 2:58 pm
Forum: Beginners
Topic: Problems with booting RaspberryPI
Replies: 18
Views: 3171

Re: Problems with booting RaspberryPI

I haven't plugged in any usb device and no ethnert - I've just inserted the sd card and plugged in power and hdmi. It hangs on mounting something - I cannot see more because the display gets black to soon after the last message. I think i will try to redownload the image if there is someting wrong w...
by Andre-W
Fri Jun 01, 2012 2:02 pm
Forum: Beginners
Topic: Problems with booting RaspberryPI
Replies: 18
Views: 3171

Problems with booting RaspberryPI

Hi all, i have set up my raspberry pi with debian squeeze which was recommend. So far everything went okay - but if i boot the raspberry the boot process stops and the raspberry pi restarts automatically. It stays in a reboot loop. Anyone knows this problem? Is there a known solution? Thanks in adva...

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