to answer simply: mhz != performance, (like pentium4 vs ivy bridge)
A coretex-a8 is diff to current mainline x64 arch, different pipelines,
memory/cache hierarchy, huge memory bandwidth difference
for mem bandwidth theoretical beagle is 16bit * 800MHz = 1.6GiB/s (also
need to share with display
is there a fix?
I found out this is caused by uboot passing the boot arguments to kernel
with rootfs=/dev/mmcblk0, while sd is inserted, the emmc actually became
/dev/mmcblk1, therefore kernel unable to find rootfs.
On Tue, May 7, 2013 at 1:10 AM, Venkat Bommakanti wrote:
> Hi,
>
> In this scen
bbb is just a dev board, not an iphone.
On Thu, Sep 26, 2013 at 5:09 PM, wrote:
> We have tested BBB with LCD7 cape and Unbuntu 12.04 & 13.04.
> Nothing does work as expected!!!
> Use of Touchscreen is hawfully slow and use of ADC with this screen hangs
> up the system!
>
> How to get a such ba
in my custom board, i used an external i2c RTC chip, proven to be reliable
and inexpensive.
On Fri, Dec 4, 2015 at 6:17 AM, Robert Nelson
wrote:
>
>
> On Thu, Dec 3, 2015 at 4:06 PM, Fidel Alejandro Rodriguez <
> alek@gmail.com> wrote:
>
>> did you manage to implement RTC whith BBB regards
>
Hi all,
onboard RTC draws too much current,
need to have low current RTC chip, no need to be super accurate, low cost
is the prime concern. has suggestions?
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AM335x has an onboard RTC, drains battery like crazy...
Thanks for the suggestions.
On Fri, Dec 11, 2015 at 5:00 AM, William Hermans wrote:
> *onboard RTC? What board are you using? I'm familiar with the BBB not
>> having any onboard RTC.*
>>
>
> It's actually on die, and it's pretty much usele
This design might have NO effect!
on Micron datasheet it says:
RST_n
Input Reset: The RST_n signal is used by the host for resetting the device,
moving the device to the preidle
state. By default, the RST_n signal is temporarily disabled in the device.
The host must set ECSD
register byte 162, bi
Hi I have some my products deployed with am335x with Micron eMMC 2GB, but
my products allow users to unplug power as they wish.
My linux app very rarely writes to the eMMC. and my /etc/fstab specifies
/var/log and /tmp to tempfs; fstab mount all partitions with "noatime"
properties.
But around 2
t power,
> buffers, and the destruction nature of quantum tunneling.
>
> -Brandon
>
> On Wednesday, March 26, 2014 2:45:57 PM UTC-7, Sungjin Chun wrote:
>
>> How about making system partition be mounted as read-only and data
>> partition be mounted after booting and che
Anyway to make monuting do fsck before mounting? Shall I edit fstab command
line or ?
On Thu, Mar 27, 2014 at 11:22 AM, Yiling Cao wrote:
> Thanks Brandon for your experience. I do agree with that better to put
> whole disk read only.
>
> But how do iPhone and Android survive? E
Thanks for your reply.
On Thu, Mar 27, 2014 at 8:41 PM, Charles Steinkuehler <
char...@steinkuehler.net> wrote:
> On 3/26/2014 10:22 PM, Yiling Cao wrote:
> > Thanks Brandon for your experience. I do agree with that better to put
> > whole disk read only.
> >
> &
When there are very small time window to update the content in flash. do
you choose to:
1. initially mount as ro, remount as rw, write your changes and remount
back to ro? OR
2. just mount as rw to boot up?
On Thu, Mar 27, 2014 at 8:47 PM, Yiling Cao wrote:
> Thanks for your reply.
>
Due to potential write caused SD/eMMC corruption issue we are facing, has
anyone successfully used read-only fs?
I have used AUFS under x86 with ubuntu, proven to be rock solid. But had no
luck with ARM due to some OS+package issue.
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---
I have done this months ago, and very useful.
this is under kernel config, .config file,
so:
make menuconfig ARCH=arm
search for nowayout
│ Symbol: WATCHDOG_NOWAYOUT [=n] │
│ Type : boolean
│
│ Prompt: Disable watchdog shutdown on close
│
│ D
5cm x 5cm stamp board similar to BBB designs + (integrated Ti audio chip)
http://ariaboard.com/
On Tue, Apr 8, 2014 at 1:48 PM, John Syn wrote:
>
>
> From: Ronny Julian
> Reply-To:
> Date: Monday, April 7, 2014 at 6:14 PM
> To: beagleboard
> Subject: [beagleboard] Form factor
>
> Ever think
http://e2e.ti.com/support/arm/sitara_arm/f/791/t/335017
i have same issue, sometimes jump phy id, sometimes no detection. on my
custom board with 8710A.
suspect interference with RESET pin. I have altered my design, everything
is better now.
correct:
[ 1.206085] CAN bus driver for Bosch D_CAN co
Hi Alex,
We have also made many variation boards, including 2 PHY design, dual
gigabit phy, etc.
We massively produce our own core boards www.ariaboard.com, We found out on
some early revision of our boards there may exist strange "PHY not found"
and "PHY 0:0x" jumping issue, the audio (TLV320AIC
Do you have env ARCH=arm ?
or:
make ARCH=arm?
On Fri, Jan 16, 2015 at 10:10 AM, 鄭功蔚 wrote:
> Dear All
>
> I am having this trouble that when I finished selecting the menuconfig
> exit and type in command "make".
> It will have an error like bellow.
>
> root@beaglebone:/usr/src/kernel# make
>
do it on ur pc linux and setup cross platform gcc. i wouldnt waste my time
do it on bbb
On Mon, Jan 19, 2015 at 4:20 PM, 鄭功蔚 wrote:
>
> Yes, I have.
> But the problem is still there
> BTW, I am running the menuconfig directly on the BBB.
> Does it still need to "env ARCH=arm"?
> Thanks!
>
> c2h2
common problem with am335x and BB, just crap cpu, i just throw them away...
On Wed, Jan 28, 2015 at 9:14 AM, liyaoshi wrote:
> Boot with sd card and run fsck /dev/mmc1p2 ?
>
> 2015-01-27 17:09 GMT+08:00 :
>
>> Hi
>>
>> Yesterday I was using my BBB and everything was working fine. But this
>> mor
i think as name suggest, u dont have power management firmware, i dont run
them too
hdmi needs specify device
On Tuesday, February 3, 2015, Metin KOÇ wrote:
>
> I made a system with Buildroot. System warn me with this messages. What is
> problem? And hdmi not working , May be about this warns?
proper IP camera/ mobile phone camera dont use USB, they use MIPI or CSI2
to interface with MPU.
USB webcam is just for some hobby/demo use.
On Mon, Feb 23, 2015 at 1:23 PM, William Hermans wrote:
> id imagije if you used IP cameras, You could do a couple more. The BBB's
> Ethernet port is as f
maybe not.
On Sat, Apr 12, 2014 at 7:37 PM, Anon123 wrote:
> I forgot to buy a microSD
>
> Can and how do i run angstrom without MicroSD? I have microUSB.
>
> --
> For more options, visit http://beagleboard.org/discuss
> ---
> You received this message because you are subscribed to the Google G
How are you powering up your board?
Is booting fine without cape?
On Wed, Apr 30, 2014 at 11:26 AM, Udayanto Dwi Atmojo <
udayanto.atm...@gmail.com> wrote:
> Hi all,
>
> I have a custom cape made for BB black, and when I have the cape plugged
> in to the BB and turning my BB on, it seems to stop
I have done Multi touch (5 points) captive touch screen last year, working
smoothly, it's based on a GPIO interrupt + I2C.
need to import/ write your own driver. There are many different chip
providers too.
On Sat, Jun 21, 2014 at 3:45 PM, wrote:
> Hi.
> I am about to start an embedded researc
to what? setting SPI to higher clock?
On Fri, Jul 11, 2014 at 2:46 PM, ES wrote:
> Hi
> Am using Beagle Bone balck with angstrom. Working with SPI in 48MHz as a
> master.
> if i send bytes am getting the following issues
> 1. Delay between the first byte and second byte is around 18us
> 2. In
linux support PPPoE I have tested before, works very well.
On Mon, Jul 14, 2014 at 3:55 AM, tarun mishra
wrote:
> Hi,
>
> I recently boughtBeagleBone Black.
> I need it to connect to internet.
> After searching on internet,I am able to share my laptop's internet to the
> BeagleBone .
> I am als
looks like a hardware issue, could be:
- improper power sequence (maybe BBB-red powers up too early... I dunno
what is bbb red)
- not enough power delivery/ or sudden power spike
On Mon, Nov 14, 2016 at 7:30 PM, Guru raj.M wrote:
>
> hi,
> i am currently using BBB-Red board which a
sevgi aydın:
I have a working copy sd2828 800x1280 with 8inch screen.
On Fri, Nov 18, 2016 at 9:13 PM, Gerald Coley
wrote:
> You are loading down the boot pins with your design. .
>
> http://www.elinux.org/Beagleboard:BeagleBoneBlack#
> Expansion_Header_Pin_Usage
>
>
> Gerald
>
> On Fri, Nov 18
board/a76c52f2-1eeb-4fba-81f6-fffa1da8e3a6%40googlegroups.com?utm_medium=email&utm_source=footer>
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You received this
no soundcards found...
>
>
> My intent is to connect a pcm5102 DAC module to the i2s lines and go from
> there. Before moving to the pcm5102, I decided it would be a good idea to
> first get the i2s bus up and running. Could someone please provide insights
> o what I may b
din.com/in/vinaydivakar> | Website
> <https://deeplyembedded.org/> | Github
> <https://github.com/deeplyembeddedWP> | Freelance
> <https://www.freelancer.in/u/deeplyembedded>
>
> On Wed, 14 Aug 2019 at 17:49, Yiling Cao wrote:
>
>> can you send us the audio part of s
;https://deeplyembedded.org/> | Github
> <https://github.com/deeplyembeddedWP> | Freelance
> <https://www.freelancer.in/u/deeplyembedded>
>
> On Wed, 14 Aug 2019 at 21:02, Yiling Cao wrote:
>
>> You need to make a device in the kernel, to initialize/register the
oit, New Zealand
> LinkedIn <http://www.linkedin.com/in/vinaydivakar> | Website
> <https://deeplyembedded.org/> | Github
> <https://github.com/deeplyembeddedWP> | Freelance
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>
> On Mon, 19 Aug 2019 at 14:53, Yiling Cao
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> .
preciated.
>
> -Jeremy Trimble
>
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