Activity
From 07/05/2013 to 08/03/2013
07/19/2013
- MS 10:44 AM PCB Development: RE: EMC Emissions from MityArm 335X MOdule
- Hi Mike,
I am good for now. Thanks for the information.
Regards,
Mike
07/18/2013
- BD 03:48 PM Software Development: RE: NFS configuration
- Great news Leonid! Thanks for the detailed error messages.
-Bob
- LV 01:32 PM Software Development: RE: NFS configuration
- Bob,
That was the problem. It's booting now.
Thanks everybody,
Leonid - BD 12:09 PM Software Development: RE: NFS configuration
- Leonid,
One more suggestion: did you untar the sample filesystem as root? Or did you untar it as a normal user?
For example (you'll need to adjust the filesystem.tgz location and name): -
01:14 PM
Software Development: RE: 3352 Module can't boot. Unknown memory type.
- Tim,
It does boot with a MLO and uboot built from the repository. Just need to put our
SPI changes back in.
Thanks,
John C. -
11:37 AM
Software Development: RE: 3352 Module can't boot. Unknown memory type.
- Ok Tim,
I'll pull that in and give it a try.
Thanks,
John C. - TI 11:35 AM Software Development: RE: 3352 Module can't boot. Unknown memory type.
- John
The error message you see about "Error - Factory Configuration Invalid" is because the u-boot you downloaded is too old (sorry about that)
and it doesn't understand the new factory config block.
We are in the midst of updating "e... -
11:21 AM
Software Development: RE: 3352 Module can't boot. Unknown memory type.
- Tim,
The error is using the latest mlo and uboot from the Critical Link website.
John C. - TI 11:15 AM Software Development: RE: 3352 Module can't boot. Unknown memory type.
- John
All the 3352 based modules use DDR3, so will all require the new u-boot.
cheers
/Tim -
11:05 AM
Software Development: RE: 3352 Module can't boot. Unknown memory type.
- Tim,
Just to add some more info. We tried booting from three different 3352 modules and
they all have the same issue.
John C. -
10:25 AM
Software Development: RE: 3352 Module can't boot. Unknown memory type.
- Tim,
As a test I downloaded the MLO and uboot from your web site and got the following when trying to boot the 3352 module:
-------
U-Boot SPL 2011.09-00000-g045cda5 (Jul 12 2012 - 16:03:00)
Texas Instruments Revision detection u... -
10:14 AM
Software Development: RE: 3352 Module can't boot. Unknown memory type.
- Thanks Tim,
I'll give it a try.
John C. - TI 10:12 AM Software Development: RE: 3352 Module can't boot. Unknown memory type.
- John
You should pull the latest from the AM335XPSP_04.06.00.08 branch on our git repo.
Support for the DDR3 memory configurations came along with a "base update" to the
newer PSP uboot.
cheers
/Tim -
09:27 AM
Software Development: 3352 Module can't boot. Unknown memory type.
- Hi,
We've been running the 3359 modules for some time and have shifted to the 3352. The error
message is:
--------------
U-Boot SPL 2011.09-00000-ge301766-dirty (May 01 2013 - 16:46:12)
Texas Instruments Revision detection unim... - MW 07:32 AM PCB Development: RE: EMC Emissions from MityArm 335X MOdule
- Hi Mike,
OK, those numbers were for the CPU running at 500 MHz. The speed of the CPU may change based on what power management scheme (the CPU governor) that is selected in the kernel configuration.
Our default kernel selects "per...
07/17/2013
- JC 10:47 AM Software Development: RE: NFS configuration
- Lenoid,
It might be helpful to put the filesystem on an SD card and make sure it boots from there.
-Jonathan - LV 10:42 AM Software Development: RE: NFS configuration
- Hi All,
I agree, it looks like the original issue is fixed and now problem is happenning after mounting nfs. Probably, when *init* is running. I tried to play with *init=* commands in u-boot, but it didn't help.
The file system on ... - MW 09:26 AM Software Development: RE: NFS configuration
- On your host, can you type "sudo exportfs" and list the results?
-Mike
- JC 08:41 AM Software Development: RE: NFS configuration
- Leonid,
It looks like nfs may be mounting. I'd expect an error similar to below if it didn't. Is the filesystem on the nfs server the same as the one on the sd card? How was it created? - MW 07:53 AM PCB Development: RE: EMC Emissions from MityArm 335X MOdule
- Hi Mike,
Hold on on that last post. We were looking at the numbers and something does not look correct (there should not be a 2 GHz clock or a 1 GHz clock, and the CPU should be running at 700 MHz).
I may have posted this premat... - MW 07:46 AM PCB Development: RE: EMC Emissions from MityArm 335X MOdule
- Hi Mike,
We needed to enable a kernel flag here. Here is a dump of the PLL derived clock tree from our dev kit. Most of these frequencies don't leave the CPU. The frequencies should be the same for you with the exception of perhaps...
07/16/2013
- LV 06:01 PM Software Development: RE: NFS configuration
- Hi Bob,
The current status is
1. After installing nfs-utils-client I can mount NFS directory when I boot from SD card
2. NFS boot is hanging after the following message:
_Freeing init memory: 236K_
You are right originally t... - BD 05:37 PM Software Development: RE: NFS configuration
- Hello Leonid,
In a previous post you had an error running this command:
07/15/2013
- MS 08:58 AM PCB Development: RE: EMC Emissions from MityArm 335X MOdule
- Hi Mike,
I had our lead software engineer try to dump the clock tree per the information you provided but he could not access it.
I would appreciate if you could set up a rig and help us through it.
Thanks,
Mike
07/12/2013
- MW 05:14 PM PCB Development: RE: EMC Emissions from MityArm 335X MOdule
- Hi Mike,
The module has 2 crystals on it, a 24 MHz (connected to ARM) and a 32 KHz (connected to PMIC).
I don't know off-hand what the switching supply freqencies are on the PMIC, but I would think they aren't above 2 MHz (probably... - Hi,
We have done a number of EMC frequency scans on our product using the MityArm 3352-GX-X27-RC module. There are a couple of frequencies that are out of specification to meet the IEC 61000-6-3 Emissions for Residential Environments.... - LV 04:57 PM Software Development: RE: NFS configuration
- Hi Mike,
I was able to mount NFS from the card after installing nfs-utils-client using opkg
Not sure what the next step can be.
Leonid - LV 01:37 PM Software Development: RE: NFS configuration
- Mounting with *-t nfs* option produces the same error message.
Re-saved file in txt format
Leonid. - MW 01:18 PM Software Development: RE: NFS configuration
- I can't open your word file. (Word says it is corrupt). Can you upload just a plain text file?
I think you need to type: - LV 12:37 PM Software Development: RE: NFS configuration
- Hello, Mike
Our basic configuration is an isolated network with 5-6 devices connected via Gigabit Network Switch (DEll PowerConnect 2708), all with static ip addresses. One of these devices is my Ubuntu PC (server 10.0.0.1), another M... - MW 08:18 AM Software Development: RE: NFS configuration
- Hello,
I am a little confused. In your posts, you show initial success using 192.168.0.144 as your server. But the failures are using 10.0.0.1 as your server. Is your server really 10.0.0.1? Many times that address is reserved for... - MS 03:28 PM PCB Development: RE: MityArm 335x Minimum Voltage Operation
- Mike,
I have made some changes to my design to try to limit the low end of the operating voltage to 3.2VDC but I don't feel comfortable with my test results to date which show the supply goint down to 3.1VDC under max load and input s...
07/11/2013
- LV 04:44 PM Software Development: RE: NFS configuration
- Mike,
Adding 'eth0' as a device in ip=... does stop system from searching for DHCP.
But instead it gives a Kernel Panic with a following information:
_[ 1.828257] CPSW phy found : id is : 0x70421
[ 1.837751] mmcblk0: p1 p... - MW 04:06 PM Software Development: RE: NFS configuration
- Hmmm....
Can you try specifying "eth0"? It looks like you have a USB network gadget compiled in (or our default kernel does), from https://www.kernel.org/doc/Documentation/filesystems/nfs/nfsroot.txt, - LV 03:43 PM Software Development: RE: NFS configuration
- My first post contains command line and fragment of boot sequence. It does match what I expected.
The full boot sequence for the NFS case and static IP is attached as a file:
Thanks
Leonid - MW 03:17 PM Software Development: RE: NFS configuration
- When the unit boots, it prints out the command line it thinks it receives early in the boot sequence. Can you verify that that command line matches what you expect?
Can you capture the boot log and post it here?
-Mike
- LV 03:08 PM Software Development: RE: NFS configuration
- This is the full list of my u-boot environment variables:
_U-Boot# print__autoload=no
baudrate=115200
bootargs=root=/dev/nfs nfsroot=10.0.0.1:/home/likewise-open/SCHICK_NT/lvolpert/Dev/3D/MityARM-rootfs_kit,nolock rw ip=10.0.0.22:10...
07/05/2013
- MC 01:10 PM Software Development: RE: bad timing of RS485 TXE when using omap-serial driver
- Yes, you were right regarding the falling of RS485-TXE line after data ends: in the version 3.2 we have the RS485-TXE code moved from serial_omap_enable_ier_thri() to serial_omap_stop_tx().
It works perfectly now; in our measurements w...