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
- MF 11:48 AM 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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 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
- MW 07:58 PM 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... - MC 12:49 PM 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...
03/06/2013
- MF 01:56 PM Software Development: RE: How to register hostname with DNS?
- I modified /etc/network/interfaces as described:
- JC 10:27 AM 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
- MF 01:48 PM Software Development: RE: How to register hostname with DNS?
- The answer there was:
- JC 11:34 AM 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 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
...