Activity
From 02/28/2013 to 03/29/2013
03/28/2013
- Trying to install an intel 330 series SSD (60 Gb). I have a power brick for it and plugged that in. Connected to the SATA port (J503) and .... nothing. I saw the errata about Gen3 SATA drives, but there are no messages about atal or S...
03/26/2013
- MW 07:12 PM MitySOM-335x (ARM Cortex-A8 Based Products) PCB Development: RE: VBACKUP Current Draw
- Mark,
Great catch! This is certainly acceptable, and we'll likely modify either our u-boot code or kernel code to disable these pull-downs. Both pins are tied externally (BOOT1 to VRTC via 10K, Boot0 to ground), so there is no need ... -
05:54 PM
MitySOM-335x (ARM Cortex-A8 Based Products)
PCB Development: RE: VBACKUP Current Draw
- Mike,
I tested the AM3354 DDR3 module here as well and also saw the ~10uA current draw on VBACKUP.
One other thing I tried worked for me in lowering this current. On your module, it appears that you have the PMIC BOOT0 input tied ... - MW 05:25 PM MitySOM-335x (ARM Cortex-A8 Based Products) PCB Development: RE: VBACKUP Current Draw
- Hi Mark,
For the DDR2 modules, I'm pretty sure you need the -1C revision for the fix. However, the AM3354 DDR3 module should have the RTC fix already applied. I tested the first prototypes here and was able to see 10 uA on them as o... -
05:07 PM
MitySOM-335x (ARM Cortex-A8 Based Products)
PCB Development: RE: VBACKUP Current Draw
- Hi Mike,
Thanks for the quick response. I believe I have modules covered in the errata. Of the three modules I've tested with, one is an 80-000444RC-1-D and the other two are 80-000509RL-1B.
I also have one of the AM3354 DDR3 mod... - MW 04:08 PM MitySOM-335x (ARM Cortex-A8 Based Products) PCB Development: RE: VBACKUP Current Draw
- Hi Mark,
We need to confirm what revision of module you have (there was Errata on earlier modules where the VBACKUP draw is quite high). Can you please get the 80- number off the module?
Check the "Module Revision History Page":ht... -
03:54 PM
MitySOM-335x (ARM Cortex-A8 Based Products)
PCB Development: VBACKUP Current Draw
- I am attempting to replicate the VBACKUP current draw information you supplied in the Hardware Design section of the wiki. I have a 3359-GX-226-RC module on the MityARM development board. I removed the battery (which was dead by the wa...
- MF 11:48 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: SPI NOR Flash memory map
- You are correct, Mike. The flash does have to be erased before writing. Here is a more fleshed out version of my code. It includes some checking for valid data before reading using a header, which others may not need but you get the id...
- MW 11:13 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: SPI NOR Flash memory map
- BTW:
It's not entirely clear to me if the write routine above will work properly. I don't know for sure, off-hand, if the driver is smart enough to do a FLASH erase prior to the write. And if it does, be aware that you will be erasi... - MW 11:11 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: SPI NOR Flash memory map
- The SPI partitions are defaulted in the board-mityomapl138.c file in arch/arm/mach-davinci in the spi_flash_partitions[] structure. This is where the kernel is getting these values.
If you want the partitions to show up right in MTD,... - FW 10:55 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: SPI NOR Flash memory map
- Please allow me to chime in with a similar question... I have "reorganized" the upper part of the spi nor flash on my mityDspL138 module as I have a Linux kernel that is larger than the original allocation. I have modified the uboot envi...
03/22/2013
- JT 03:13 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Creating a Read-Only Filesystem
- I worked on it some more and ended up with a script with seven patch files that change it to a read-only filesystem. My plan is to setup a time delay relay that toggles the power to a board for a weekend test.
- MW 01:01 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: L138F - FPGA gets incorrect data from UPP
- Marek,
The UPP clocks may be sourced by either the FPGA or the OMAP-L138 based on your configuration requirements. If sourced by the OMAP-L138, you should be able to run the input clock to a DCM or a PLL and align the data-eyes on th... - Hello,
I have problem when trying to read data on UPP by FPGA (sent from OMAP - working with L138F, XC6SLX45, ISE WebPack 14.3). Data arrive corrupted. The reason might be latence on CLK when routed to clock tree via logic blocks in F...
03/20/2013
- JC 09:16 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Creating a Read-Only Filesystem
- Jim,
Any luck? As far as I can tell that mount entry should work.
03/15/2013
- LM 11:32 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: MDK_2012-08-10 default configuration
- Mike,
Thanks for pointing that out - really helpful!
I can most definitely see the network (and boot from it) from U-Boot.
However, there is clearly some funny business going on with the PHY address;
U-Boot claims it finds the PHY a...
03/14/2013
- MW 08:25 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: MDK_2012-08-10 default configuration
- So the industrial IO board uses PHY address 3 and the EMAC driver is configured to look for that MDIO interface prior to initiating EMAC transfers. You will need to modify your kernel (make your own baseboard file or modify the industr...
- LM 07:06 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: MDK_2012-08-10 default configuration
- My custom board uses either PHY address 1 or 0 - both addresses cause the same problem.
I played around a little with the industrial base board and found that it does not suffer the same issue,
so there is most likely something in my ... - JT 08:59 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Creating a Read-Only Filesystem
- I changed fstab for the /mnt/user_nand to as follows -
/dev/mtdblock1 /mnt/user_nand jffs2 defaults,rw,noatime,nodiratime 0 0
However, the power-up was the same and the partition was not mounted.
03/13/2013
- JC 04:06 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Creating a Read-Only Filesystem
- > rm: cannot remove '/etc/volatile.cache': Read-only file system
> ...
Udev happens before the tmpfs entries get mounted from the fstab file. - JC 03:56 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Creating a Read-Only Filesystem
- Your fstab entry doesn't have auto in the options list so it isn't auto mounted on startup. You should probably use the defaults and then override the options you want changed.
*defaults* Uses the default options that are rw, suid, d... - MF 01:20 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: SPI NOR Flash memory map
- This probably doesn't completely answer your question, but may be helpful. There is some "spare" memory on the SPI NOR flash.
On your target try: - MW 10:59 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: MDK_2012-08-10 default configuration
- What PHY address does your custom baseboard use?
-Mike
- Hi,
I am working on bringing up a custom base board for a MityDSP-L138.
Most things seem to work fine using the version of Linux installed on the MityDsp-L138 board out of the box. However, I need to reconfigure the kernel a bit to re...
03/12/2013
- LA 02:59 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: FPGA Memory Size
- You are correct we are looking at cs5 as well.
32k would probably be sufficient. We typically prefer to provide the information in a flat manner to offload the CPU from parsing, or having to copy out all the information instead of the... - JT 01:52 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Creating a Read-Only Filesystem
- I had used -
mount -t jffs2 /dev/mtdblock1 /mnt/user_nand
and just -
mount /mnt/user_nand
also works.
- JC 01:42 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Creating a Read-Only Filesystem
- "I can manually mount /mnt/user_nand and access that partition"
Whats the full command you use to manually mount your partition? Does @mount /mnt/user_nand@ work? - Hi,
We use the MityDSP-L138 in a factory automation product and need to prevent fs corruption from random shutdowns. My first attempt was to change the rootfs to read-only in a startup script, but it would be safer if the rootfs was rea... - JC 08:32 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: SPI NOR Flash memory map
- This appears to be what your looking for.
[[MityDSP-L138_Architecture]]
Also can be determined by looking at the uboot environment variables. The erase commands give the starting address and the max size expected for each image.
@
... - (posted for a customer)
We are looking at using the SPI flash and/or NOR flash for storing our software on the L138 SOM. We are currently using uBoot and the exisiting boot code on the board so we do not want to overwrite these.
...
03/11/2013
- MK 09:02 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: Yocto in the future?
- Mike,
I *think* the kernel source were coming from Critical Link's git repo - this line is in the linux-mityarm-335x_3.1.bb file:
@SRC_URI = "git://support.criticallink.com/home/git/linux-mityarm-335x.git;protocol=git;branch=${BRAN... - MW 08:26 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: Yocto in the future?
- Right,
If I read you correctly, you will need to modify the Yocto recipe to use our kernel URL and not Yocto's. This is because the Yocto kernel sources (or anyone else's at the moment, until we upstream stuff) does not have a MACHIN... - MK 04:45 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: Yocto in the future?
- Mike,
Thanks again for your quick response.
In Yocto, I've been setting following environment variables in my local.conf:
GCCVERSION = "4.5%"
BINUVERSION = "2.20.1"
I have used pretty much the same BSP in Yocto as for Angstrom... - MW 07:28 AM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: Yocto in the future?
- I don't know why the SDK toolchain isn't working. Are you sure that the .config file was not altered, specifically, the MACHINE type? That would definitely cause problems. Are you using the kernel and u-boot code from our site, or fro...
- MW 07:58 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: FPGA Memory Size
- As mentioned on the "EMIFA wiki page":http://support.criticallink.com/redmine/projects/arm9-platforms/wiki/EMIF_Interface, all of our FPGA fabric and drivers use CE5 space (0x66000000), for the ARM or the DSP (where did you find informat...
- The standard FPGA memory available to the arm processor within angstrom is currently limited to 2k.
From what we can gather there are many places that could work together to create this limit:
Flash code
uBoot
FPGA vhdl
Linux dr... - We are building a system with extended low temperature range (below 0C) and see that the VSC8601 PHY only goes to 0C.
Vitesse also has an 8641 part with extended temperature range, which appears to be quite similar to the VSC8601, exc... - MC 12:49 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: SPI Core on FPGA: Implementation on MityDSP-L138F
- Dear all,
I'm trying to understand the behaviour of your SPI core on FPGA with hooked FIFO and wondering how to connect it to a PulSAR ADC (for example AD7980) from Analog Devices, hopefully, on SW side, using your tcDspFpgaSpi Class in...
03/08/2013
- Up until a week or so ago, we were developing MityARM-335x code under Angstrom as a holdover from work done on Beaglebone w/ Angstrom. We built the filesystem, kernel, and uboot using recipes posted on the Critical Link Wiki, and - once...
-
02:39 PM
MitySOM-335x (ARM Cortex-A8 Based Products)
Software Development: RE: MityArm in u-booting from SPI flash
- Thanks Tim,
How hard to you think it would be to merge the MityArm changes for u-boot into the latest mainline u-boot?
John C. - TI 02:28 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: MityArm in u-booting from SPI flash
- John
While the omap l138 based mity SOMs do boot from SPI (NOR) flash, we have not tried to do so on the AM335X based SOMs.
In fact, the current AM335X based SOMs can not boot from on-board flash due to pin mux constraints. You should ... -
02:12 PM
MitySOM-335x (ARM Cortex-A8 Based Products)
Software Development: MityArm in u-booting from SPI flash
- Does Critical Link plan to support booting from spi flash? We would like to begin the process of migrating the booting
over to spi flash and were hoping you guys might have it ready to go already (fingers crossed...) We understand that
...
03/06/2013
- MF 01:56 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: How to register hostname with DNS?
- I modified /etc/network/interfaces as described:
- JC 10:27 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: How to register hostname with DNS?
- http://www.turnkeylinux.org/forum/support/20090212/register-hostname-dns
This post suggests setting hostname in /etc/network/interfaces file.
03/05/2013
- 锋曲 11:32 PM MityDSP (TI TMS320C6xxx Based Products) FPGA Development: RE: How does DSP configure FPGA program?
- Thank you very much Mike,
- MW 01:04 PM MityDSP (TI TMS320C6xxx Based Products) FPGA Development: RE: How does DSP configure FPGA program?
- Here you go. Good luck.
| *FPGA* | *DSP* |
| DONE | GP_7 |
| INIT | GP_6 |
| PROGRAM | GP_1 |
| CCLK | EMIF_AAOEn and EMIF_AAWEn (external and gate) |
| BUSY | EMIF_AARDY |
| D(7..0) | EMIF_AED(7..0) |
| CS | EMIF_ACE2n and E... - 锋曲 10:02 AM MityDSP (TI TMS320C6xxx Based Products) FPGA Development: RE: How does DSP configure FPGA program?
- Hello mike,
Thank you very much for your reply, I would like to know which pins of DSP are used to configure FPGA, like CCLK,WRITE,DATA[0:7],BUSY,,DONE,INIT,PROGRAM. Because the program framework of our project has been completed, and t... - MW 07:47 AM MityDSP (TI TMS320C6xxx Based Products) FPGA Development: RE: How does DSP configure FPGA program?
- Hello,
The DSP configures the FPGA using slave parallel select mode (8-bits at a time) using a connection to the EMIFA and a couple of GPIO pins to drive the PROGRAM, CS, and INIT pins to monitor the load status.
Details about para... - MF 01:48 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: How to register hostname with DNS?
- The answer there was:
- JC 11:34 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: How to register hostname with DNS?
- This might be what your looking for.
http://www.linuxquestions.org/questions/linux-networking-3/dns-registration-on-internal-network-284556/ - I would like to use DHCP for ip address assignment, set my own hostname and register it with DNS.
So, far I can get an IP address just fine. I see that the hostname is in /etc/hostname (currently set to mityomapl138). Presumably I c... - MF 11:36 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: How to get system time?
- Stumbled across this:
#include <time.h> references /usr/local/oeore-i686/sysroots/armv5te-angstrom-linux-gnueabi/usr/include/time.h
which includes another file:
#include <bits/time.h>
which references
/usr/include/bits/time.h
...