Activity
From 03/11/2013 to 04/09/2013
04/09/2013
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10:38 PM
MitySOM-335x (ARM Cortex-A8 Based Products)
Software Development: RE: Assigning params from memory in u-boot
- Hey Jonathan,
The issue is that we are burning our image into flash from our StarterWare code base. The new
StarterWare image is burned into SPI flash memory location 0x300000 and has a mkimage header. When y... - JC 04:35 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: Assigning params from memory in u-boot
- I'm unsure how to do what your looking for. All the references I could find have you set the image size in an environment variable when it is flashed to the spi flash.
Example: http://wiki.atlas-embedded.com/index.php?title=Flashing_Li... -
04:08 PM
MitySOM-335x (ARM Cortex-A8 Based Products)
Software Development: Assigning params from memory in u-boot
- Hi,
Were are in the final stages of booting our StarterWare image from uboot. Currently we have our compressed image
loaded into SPI flash with a mkimage header attached on the top. I am trying to make a uboot script that will loa... - MC 02:02 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: GPIO interrupt in MityOMAP-L138F
- Hi Mike,
thanks for fast reply!
The best would be an example using an fpga gpio pin and an omap pin, just to test the possibilities.
Does the .tcf configuration file has a role in configuring the interrupt based on an fpga gpio p...
04/08/2013
- MW 01:07 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: GPIO interrupt in MityOMAP-L138F
- Are you trying to use a FPGA GPIO or an OMAP-L138 GPIO?
The DspGpio.h class should provide access to the OMAP-L138 GPIOs from the DSP. The DspFpgaGpio.h class should be used to access FPGA based GPIO modules. Both classes are derive... - Hello all,
I need to hook a HWI to a GPIO pin in a DSP application.
I have some questions:
1- Do your core library provide any class to do that? I see DspFpgaGpio.h and Gpio.h, but they lack a bit of documentation, and I can't find ... - FT 12:49 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: L138 - DSP Timer interrupt question ...
- Mike,
Thanks for information. Always very intressting. I am reading the Day2_AM training document.
Here our current system. We are using UPP to get data from FPGA. There is a block of data around each 17 ms.
Correct me if I am w... - Hello,
I am using Virtual Box and MityDSP-L138_SDK_2012_06_13.eva image.
When I following Start Guide instruction step by step.
(1) Install Gcc toolchain 4.5.4
(2) Update Eclipse CDT
But when I build HelloWorld Application I get ...
04/07/2013
- MW 07:53 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: L138 - DSP Timer interrupt question ...
- Check the "Interrupt Handling - Delayed Branch Latency" section of the Day2_AM training presentation located in our "MityDSP-67XX project files folder":http://support.criticallink.com/redmine/projects/dsp-products/files.
It's for the ...
04/04/2013
- FT 04:27 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: L138 - DSP Timer interrupt question ...
- Mike,
Can you add more details regarding this statement: _The DSP loop optimization can create large interrupt latency as well (which can cause missed interrupts on things like large memory copies by the CPU, etc)._
For example, ... -
03:07 PM
MitySOM-335x (ARM Cortex-A8 Based Products)
Software Development: RE: No unzip in MityArm uboot?
- Thanks Jonathan,
I added #define CONFIG_CMD_UNZIP to the file, rebuilt u-boot and burned it into NAND. So I was able to do the following
from a u-boot prompt and our application runs:
mw.b 0x8C100000 0x00 2E274
sf probe 0:... - JC 12:31 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: No unzip in MityArm uboot?
- In the file include/configs/mityarm335x.h you need to insert
_#define CONFIG_CMD_UNZIP_ -
12:10 PM
MitySOM-335x (ARM Cortex-A8 Based Products)
Software Development: RE: No unzip in MityArm uboot?
- Where is the board header file?
Thanks,
John C. - MW 11:37 AM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: No unzip in MityArm uboot?
- You will probably need to rebuild it and enable the optioncommand by adding a CMD_XXX (CMD_ZIP? would need to check) to the board header file.
Many options / features of u-boot may not be enabled in our default u-boot application in o... -
10:38 AM
MitySOM-335x (ARM Cortex-A8 Based Products)
Software Development: No unzip in MityArm uboot?
- Hi,
We are running the critical link u-boot version(below) on the MityArm and it appears that there is not a unzip command available. The reason we need it is that the StarterWare image we are running is over 3Mbytes in size and ... - JC 11:43 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: MityDSP-L138F Failure to Boot and Cannot Reset
- Also feel free to look through the wiki http://support.criticallink.com/redmine/projects/arm9-platforms/wiki
- JC 11:40 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: MityDSP-L138F Failure to Boot and Cannot Reset
- The username for the modules should be _root_
04/03/2013
- MT 10:16 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: MityDSP-L138F Failure to Boot and Cannot Reset
- Hi,
Thank you so much for supporting.
For (1): At the first time. Now the board are running with null modem cable that is provided with the kit.
For (2): Yes, I am looking for the power good LED to flash?
Another question,
When... - MW 07:17 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: MityDSP-L138F Failure to Boot and Cannot Reset
- I am assuming these are out of the box Development kits?
For (1) the console UART, please ensure you are using the serial cable provided with the kit (I believe the board requires a null modem cable connection).
For (2), when you s... - CR 08:27 AM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: Resistors in EMA signal and adress traces?
- Mike,
it's the L138-FX-225-RC Module. No FPGA.
I'm concerned about both kinds of traces.
Christian - MW 07:33 AM MityDSP-L138 (ARM9 Based Platforms) PCB Development: RE: Resistors in EMA signal and adress traces?
- Which part number? Specifically, does the module include an FPGA or not?
Which EMA traces are you concerned with, data lines, control, or both?
I do not believe there are any inline series resistors on the data or address lines.
... - Hi,
can anybody tell me if there are already resistors on the EMA-traces on the L138-Modul integrated? If yes, what are the values of them?
thanks,
Christian
04/02/2013
- Hello
I am using Industrial I/O board(80-000268RI-2 A) and 2 L138 board (L138-CG-225-RC ,L138-FG-225-RC).I got 2 issues:
(1) When I connect L138-CG-225-RC to Industrial I/O board. The Power Good LED lights up, and I can reset board, ...
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...