Re: [POWER] battery calibration parameters from sysfs

2009-12-15 Thread Aras Vaichas
2009/12/15 Bill Gatliff b...@billgatliff.com: Aras Vaichas wrote: Unfortunately the simple coulomb counting chips have the disadvantage that the CPU has to be running to accumulate the pulses. Of course, the pulses could wake the CPU from a suspend mode, but I'd rather not do that just to add

Re: [POWER] battery calibration parameters from sysfs

2009-12-14 Thread Aras Vaichas
. It was fairly complex to set up and calibrate but we now use it in a commercial product. I recommend having a look at the datasheet for the DS2782 to see what methods they use for determining the remaining charge in a battery and to get an idea of the complexity of the problem. Good luck! Aras

Re: [ANNOUNCE] CELF open project proposal

2009-12-03 Thread Aras Vaichas
supports JFFS2). JTAG is good for production installation but USB DFU is ideal for field upgrades or bricked-system recovery. Aras Vaichas -- To unsubscribe from this list: send the line unsubscribe linux-embedded in the body of a message to majord...@vger.kernel.org More majordomo info at http

Re: [ANNOUNCE] CELF open project proposal

2009-12-02 Thread Aras Vaichas
2009/12/3 Tim Bird tim.b...@am.sony.com Mike Frysinger wrote: i know your e-mail intro states embedded Linux as does the wiki, but i'm gonna take a stab anyways.  does this apply to Linux only and not open source boot loaders (like U-Boot) ? It applies to anything in the embedded Linux

Re: 100Mbit ethernet performance on embedded devices

2009-09-01 Thread Aras Vaichas
On Thu, Aug 20, 2009 at 12:50 AM, Johannes Stezenbach j...@sig21.net wrote: Hi, a while ago I was working on a SoC with 200MHz ARM926EJ-S CPU and integrated 100Mbit ethernet core, connected on internal (fast) memory bus, with DMA.  With iperf I measured:  TCP RX ~70Mbit/sec  (iperf -s on

need help finding a WiFi + BT SDIO chipset/module for Linux

2009-07-02 Thread Aras Vaichas
... no thanks. I know that there are sites which list compatible USB and PCI WiFi devices, but I've not seen anything that goes down to the OEM module level. Is there a webpage somewhere of OEM Linux compatible SDIO Wifi modules? regards, Aras Vaichas -- To unsubscribe from this list: send the line

Re: need help finding a WiFi + BT SDIO chipset/module for Linux

2009-07-02 Thread Aras Vaichas
On Fri, Jul 3, 2009 at 11:23 AM, Aras Vaichasar...@magellan-technology.com wrote: Hi, can someone point me in the right direction to choose an OEM WiFI + Bluetooth chipset/module suitable for an embedded Linux system? I'd prefer if it was connected via SDIO. Sorry to answer my own question.

AT91SAM9G20 design and boot times

2009-06-10 Thread Aras Vaichas
a monolithic kernel, or is it split into minimal with modules loaded from, say, JFFS2 on NAND? * are you using JFFS2 or UBIFS? Any info is much appreciated, thank you! regards, Aras Vaichas -- To unsubscribe from this list: send the line unsubscribe linux-embedded in the body of a message to majord

Re: Linux SBC recommendations

2008-11-30 Thread Aras Vaichas
Greg Lee wrote: I'm in the process of selecting a single-board computer (SBC) for a project and I'd like to hear what others are using sucessfully. My requirements for the SBC are: 1) Low cost ($100) 2) Runs Linux 3) Has an Ethernet and USB host connection 4) Has sufficient storage capacity to