Activity
From 06/28/2013 to 07/27/2013
07/26/2013
- MW 11:33 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Kernel bug
- Hi Mostafa,
Thank you for the notice.
I see that is in the master branch (2.6.34). We will correct it. However, it is not in the mitydsp-linux-v3.2 branch. You might consider upgrading to 3.2, most of our customers are using th... - Hi, just wanted to make you aware of a bug in the kernel sources:
http://support.criticallink.com/gitweb/?p=linux-davinci.git;a=blob;f=drivers/usb/gadget/epautoconf.c
lines 268 - 285 have been duplicated in lines 286 - 302.
-Mos...
07/24/2013
- MW 06:13 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: UPP "start" signal ignored in receive mode?
- Hi Stu,
Have you tried to use chipscope to confirm the alignment of the start strobe with the data as sent by the FPGA and check the UPP bus interface WAIT pins, etc? (if you don't have a license, I think you can get a 30 day trial on... - SC 12:53 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: UPP "start" signal ignored in receive mode?
- Scott,
Yes, we're trying to send one line (of 6176 bytes) per DMA memory buffer (also 6176 bytes). The "DspUpp.c" code seems to correctly handle setting up a "pending" DMA transaction behind the currently executing DMA transaction. ...
07/23/2013
- MW 05:52 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: UPP "start" signal ignored in receive mode?
- Hi Stu,
Check section 33.2.5.3 of the TRM. For receive mode, the start line is optional, controlled by the STARTx bit in UPICR.
The configuration of the strt signals are setup by the tsDspUppConfig in DspUpp.h and DspUpp.cpp. Che... - SW 04:56 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: UPP "start" signal ignored in receive mode?
- Stu,
I'm not sure about the DSP driver for uPP, I am using a Linux driver to the Arm. Are you trying to stream data from the FPGA to the DSP? Are you just using 1 line and therefore 1 memory buffer to transfer data via the uPP driver?...
07/22/2013
- MA 03:52 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: EMA_WAIT and bus contention on L138F
- Hi Mike, relevant definitions from the header:
- MW 02:11 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: EMA_WAIT and bus contention on L138F
- Just for sanity,
Have you confirmed you are writing to the correct AEMIF registers? CE3 is the NAND, and you are hitting "AEMIF_A3CR" in the above. I get a little confused about the register numbering vs. the CS numbering. Just wan... - MA 01:42 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: EMA_WAIT and bus contention on L138F
- Hi Mike,
I've now also tried setting unused I/O to float and increasing both the TA and Read Hold to 4 cycles. I've verified the timing change with ChipScope but unfortunately it has had no effect on the JFFS2 warnings.
Attaching a... - We have an FPGA application for the MityDSP-138F board which transmits "packets" to the DSP through the UPP port. The packet consists of 16 bytes of header and 6160 bytes of signal data. The FPGA asserts the UPP "start" signal on the f...
- DG 01:25 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Fail to mount Root FS from MicroSD card
- Ok, managed to fix the problem.
I have changed mityomapl138_mmc_get_ro() in board-mityomapl138.c to return(0) since MicroSD has no write protect pin.
07/21/2013
- DG 10:19 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Fail to mount Root FS from MicroSD card
- Hello, Tim!
Comma makes no difference, I have tried.
I have got a little progress - I have changed bootargs as follows:
bootsd=mmcinfo; ext2load mmc 0:1 0xc0700000 /boot/uImage; run sdargs; bootm 0xc0700000
sdargs=setenv bootar... - TI 07:27 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Fail to mount Root FS from MicroSD card
- Dmitry,
I believe yhou are missing a comma in your bootargs..
root=/dev/mmcblk0p1 rw rootwait
should be
root=/dev/mmcblk0p1 rw,rootwait
cheers
/Tim - Hello!
I am trying to mount Root FS from MicroSD card (ext2 formated).
Boot process fails with kernel panic.
My U-Boot environment:
bootargs=mem=96M console=ttyS1,115200n8 root=/dev/mtdblock0 rw rootwait
bootcmd=sf probe 0; sf rea...
07/19/2013
- MS 10:44 AM MitySOM-335x (ARM Cortex-A8 Based Products) 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
- SH 06:50 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: RS-485 problems
- Solved the problem myself - it turns out that either SER_RS485_RTS_ON_SEND or SER_RS485_RTS_AFTER_SEND must be defined for the toggle to work. The flag SER_RS485_RTS_BEFORE_SEND is not recognised by the compiler, and (1<<3) doesn't seem...
- SH 05:54 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: RS-485 problems
- OK, then it all makes sense. In spite of the way the connector is shown in the documentation I was assuming (never assume) that the pinout was the "normal" IDC connector pinout.
So we are left with the problem that the TX_ENB line (p... - MW 05:20 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: RS-485 problems
- Actually, I take that back. The pin out is illustrated in Figure 2 of the specification....
-Mike
- MW 05:13 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: RS-485 problems
- Ah,
I think I may see the problem. Those connectors are pinned (on our PCB) for use with a ribbon cable and a DB-9 IDC connector (like the one you are using for the console). So the pins are numbered 1-5 on 1 row and then 6-10 on th... - SH 05:08 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: RS-485 problems
- My board is 80-000268RI-2B, S/N 132541. I looked at the appropriate document on the page you referenced, and while it is not the same document I was originally looking at, the pins and connectors are the same.
- MW 04:59 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: RS-485 problems
- Hi Steven,
Let's make sure you are referencing the correct revision information for the board (it has been updated a few times since original publication).
Revision history and schematics for the Industrial I/O boards are available... - SH 04:07 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: RS-485 problems
I am looking at pins on J504, based on the Industrial IO Board rev C documentation
Curiously, only pins 1,2,3,4,5,9 and 10 have solder showing ... that does not fit with the documentation.
I see traces on the back of the board go...- SH 03:27 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: RS-485 problems
- OK, here is what I see:
mitydsp@mitydsp-VirtualBox:~/linux-davinci$ git branch
master
* mitydsp-linux-v3.2
mitydsp@mitydsp-VirtualBox:~/linux-davinci$ git log
commit f13cb8373517840670b06fafc1b381e934c5ac37
Author: Michael Will... - MW 03:24 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: RS-485 problems
- I am assuming it compiled OK.
Are you sure that the write() call is returning successfully? Can you send the full example, or modify the stand alone examples (in c) and try them?
Also, you should be able to just - JC 03:22 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: RS-485 problems
- Btw press q to escape @git log@.
- JC 03:21 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: RS-485 problems
- Steven,
Run the command @git branch@ to see which branch is selected. It should say mitydsp-linux-v3.2. When you run @git log@ you should see the UART2 change at the top.
-Jonathan - SH 03:18 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: RS-485 problems
- OK, I built the new kernel and flashed it to the MityDSP - now uname gives:
Linux mityomapl138 3.2.0+ #1 PREEMPT Thu Jul 18 11:44:18 PDT 2013 armv5tejl GNU/Linux
But, I am still not seeing any toggling of Tx lines or the TX_ENB lin... - SH 02:43 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: RS-485 problems
- Sorry - my mistake. I re-installed the toolchain and then realized that I had typed "CROSS-COMPILE" instead of "CROSS_COMPILE". Kernel generation seems to be working now.
It is necessary to have the incantations exactly correct! - SH 02:06 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: RS-485 problems
- I seem to have the same problems - here is the output from a new shell:
- MW 01:52 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: RS-485 problems
- You only use the HOST native CC, not the cross tools, to build the config file. It seems like you have a CC environment variable set and it's pointing to a native (x86) gcc.
Can you please launch a new shell and run the setup script?... - SH 01:41 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: RS-485 problems
- I'm getting errors when I try to build the kernel:
mitydsp@mitydsp-VirtualBox:~/linux-davinci$ make ARCH=arm CROSS-COMPILE=arm-angstrom-linux-gnueabi- uImage
scripts/kconfig/conf --silentoldconfig Kconfig
WRAP arch/arm/include/... - MW 11:26 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: RS-485 problems
- If you have our repository cloned already....
- SH 11:14 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: RS-485 problems
- A newbie question - How do I build this particular branch of the kernel?
- SH 10:34 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: RS-485 problems
- Thanks for your response. Here is what I get from uname:
Linux mityomapl138 3.2.0 #1 PREEMPT Wed May 15 09:16:03 EDT 2013 armv5tejl GNU/Linux
- BD 03:48 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: NFS configuration
- Great news Leonid! Thanks for the detailed error messages.
-Bob
- LV 01:32 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: NFS configuration
- Bob,
That was the problem. It's booting now.
Thanks everybody,
Leonid - BD 12:09 PM MitySOM-335x (ARM Cortex-A8 Based Products) 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
MitySOM-335x (ARM Cortex-A8 Based Products)
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
MitySOM-335x (ARM Cortex-A8 Based Products)
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 MitySOM-335x (ARM Cortex-A8 Based Products) 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
MitySOM-335x (ARM Cortex-A8 Based Products)
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 MitySOM-335x (ARM Cortex-A8 Based Products) 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
MitySOM-335x (ARM Cortex-A8 Based Products)
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
MitySOM-335x (ARM Cortex-A8 Based Products)
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
MitySOM-335x (ARM Cortex-A8 Based Products)
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 MitySOM-335x (ARM Cortex-A8 Based Products) 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
MitySOM-335x (ARM Cortex-A8 Based Products)
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 12:30 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: EMA_WAIT and bus contention on L138F
- One thought:
Is it possible the tri-state drive logic for the data lines off the FPGA is creating bus contention? Perhaps there is a bug in the EMIFA interface that is not parking/tri-stating the data lines soon enough after OE is de... - MA 12:24 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: EMA_WAIT and bus contention on L138F
- Hi Mike,
Thanks for the suggestions.
Not sure I understand what you mean by FPGA access bandwidth. It is being used to implement the frontend of a high speed wireless communication system so we are using the the bus pretty much con... - MW 07:32 AM MitySOM-335x (ARM Cortex-A8 Based Products) 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
- MW 09:17 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: RS-485 problems
- OK. I have added the patch to the mitydsp-linux-v3.2 branch. You should be able to at least see the Tx line toggle with your code.
If you can confirm you are getting normal output on the Tx lines, then we can tackle the TXE issue. ... - MW 08:55 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: RS-485 problems
- Hi Steven,
Sorry for the confusion. It's not a menuconfig item. There is a patch needed to enable the UART2 pin pinmuxes (it didn't appear to get ported to the 3.2 kernel).
I will post the patch (push it to the git mitydsp-linux... - SH 08:32 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: RS-485 problems
- How would anyone know this? I have looked at the config of the kernel I am using and you are correct, these pins are not mentioned in the .config file. I built the kernel based on the instructions in the wike, and there is nowhere the ...
- DG 07:05 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: RS-485 problems
- Hello,
Is is possible your kernel may not be setting up the ARM pin multiplexing for UART2? In your baseboard file [arch/arm/mach-davinci/baseboard-industrialio.c if your using the industrial IO build], you probably need something like: - SH 06:48 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: RS-485 problems
- I have attached the files defining the class and showing how I open the serial port. Then I just use standard write calls using termHandle.
- I am trying to get the RS-485 running on my Industrial I/O board with the L-138F. I'm using the example code in "send.c" posted in the forum thread "Write UART2 RS-485 API". Looking at the pins on J504 (6 = Tx, 1 = Tx_ENB) I am not see...
- JC 10:47 AM MitySOM-335x (ARM Cortex-A8 Based Products) 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 MitySOM-335x (ARM Cortex-A8 Based Products) 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 MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: NFS configuration
- On your host, can you type "sudo exportfs" and list the results?
-Mike
- JC 08:41 AM MitySOM-335x (ARM Cortex-A8 Based Products) 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 MitySOM-335x (ARM Cortex-A8 Based Products) 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 MitySOM-335x (ARM Cortex-A8 Based Products) 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... - MW 07:38 AM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: EMA_WAIT and bus contention on L138F
- Hello,
How much bandwidth are you using for the FPGA accesses? Have you looked with any sort of bus analyzer (perhaps in chip scope) to assess the access logic? If the WAIT pin is getting hit, the slowdown could also be the ECC logi...
07/16/2013
- LV 06:01 PM MitySOM-335x (ARM Cortex-A8 Based Products) 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 MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: NFS configuration
- Hello Leonid,
In a previous post you had an error running this command:
- We have a project which uses CS4 and CS5 to write and read data from a pair of FPGA FIFOs respectively. CS4 is used exclusively for writing while CS5 is used exclusively for reading. The config register settings are:
/* CS4 config...
07/15/2013
- SH 05:23 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Simple example needed
- Thanks for the help. I decided to take a very simple approach and use mmap to access the FPGA, based on the mmap example. Instead of an interrupt, I will just poll - I don't really need the response speed of an interrupt.
- MS 08:58 AM MitySOM-335x (ARM Cortex-A8 Based Products) 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
07/14/2013
- MW 08:22 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Simple example needed
- Answers to questions:
1. The reserved FPGA id's are in the file: $MDK/sw/common/fpga/core_ids.h. I would use core ID 255 and count down for additional ones.
2. Not really. Normally we suggest that you start (for the FPGA) with th...
07/12/2013
- MW 05:14 PM MitySOM-335x (ARM Cortex-A8 Based Products) 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 MitySOM-335x (ARM Cortex-A8 Based Products) 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 MitySOM-335x (ARM Cortex-A8 Based Products) 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 MitySOM-335x (ARM Cortex-A8 Based Products) 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 MitySOM-335x (ARM Cortex-A8 Based Products) 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 MitySOM-335x (ARM Cortex-A8 Based Products) 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 MitySOM-335x (ARM Cortex-A8 Based Products) 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... - SP 02:02 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: flash and boot utils
- Hi Mike,
I finally took the newest flash loader sources from TI (v2.40) and followed the wiki instructions (http://processors.wiki.ti.com/index.php/Rebuilding_the_Flash_and_Boot_Utils_Package)
At the end, I only had to change the DEV... - VG 01:58 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: shared memory in the DSP Helloworld example
- Thanks mike. That cleared my doubts.
07/11/2013
- LV 04:44 PM MitySOM-335x (ARM Cortex-A8 Based Products) 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 MitySOM-335x (ARM Cortex-A8 Based Products) 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 MitySOM-335x (ARM Cortex-A8 Based Products) 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 MitySOM-335x (ARM Cortex-A8 Based Products) 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 MitySOM-335x (ARM Cortex-A8 Based Products) 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... - SH 09:50 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Simple example needed
- I just thought of another question. Not being familiar with linux, I am wondering what abstraction I might be able to hook into. My device is very simple: there are a number of offsets to which values must be written, and there is one ...
- SH 09:33 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Simple example needed
- OK, I am probably going to have a lot of questions. To start with:
1. What IDs are available to use for my core?
2. Do you have a walk-through of creating and using a new core?
3. Is it correct to assume that if a new core is added th... - MW 07:44 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Simple example needed
- Hi Steven,
My understanding is that you have your own FPGA IP and want to control it (including catching an interrupt) from a linux user space application. Linux (and most non-RT OS's) doesn't really provide a direct way to do this. ... - MW 07:12 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: shared memory in the DSP Helloworld example
- Hello Vinod,
The memory allocated is in the OMAP external DDR2 memory, and is actually in the DSPLINK POOL segment in the DSPBIOS/DSPLINK memory map. When you print out a pointer address in a linux user space allocation, you are prin... - hi,
Where does the memory allocated by GetBuffer() reside? Is it in the external RAM or OMAP's internal memory? For my application I just want to make sure that the memory allocated is from the external RAM.
I tried displaying the ad...
07/10/2013
- SP 07:16 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: flash and boot utils
- Hi Mike,
We are using the serial flash tool to replace the preprogrammed U-Boot with an own SysBios based loader application.
In order to minimize human interaction, we plan to control the Reset and Boot pins via RS232 control signals ... - MW 07:01 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: flash and boot utils
- Hello,
Are you using the serial flash tool instead of u-Boot to program application images?
Are you rebuilding the tool to add or alter functionality?
We weren't planning a near term migration of the tool, as we normally only us... - Hello,
I rebuilt the SPI serial flash tool (sfh_OMAP-L138.exe) from the MDK_2013_05_15 sources. Therefor I changed the cross compiler location (I’m working with Cygwin under windows) such as make finished without errors or warnings. B...
07/09/2013
- CB 10:46 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: MItyDSP L138-FI-236-RL Industrial IO Board 80-000268RI-2 rev. B, wont reset and no output on serial port.
- Hi,
I am using a nondescript USB to RS232 cable, dmesg tells me its a FTDI USB-RS232 cable, with a FT232RL onboard.
Chris. - TI 09:55 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: MItyDSP L138-FI-236-RL Industrial IO Board 80-000268RI-2 rev. B, wont reset and no output on serial port.
- Chris,
Glad to hear of your success... if you don't mind, can you detail your setup a bit. Are you using a USB serial adapter (if so which one) or a serial port on your PC motherboard or pci card?
It sounds like the serial port you are... - CB 09:50 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: MItyDSP L138-FI-236-RL Industrial IO Board 80-000268RI-2 rev. B, wont reset and no output on serial port.
- Hi,
I finally got it working by directly connecting the serial port to the board.
Thanks for the help,
Chris. - CB 09:15 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: MItyDSP L138-FI-236-RL Industrial IO Board 80-000268RI-2 rev. B, wont reset and no output on serial port.
- Hi,
Swapping up the cables sees to make no difference, and if I plug in my work PC into the supplied cross over cable I get an IP.
Thanks,
Chris.
07/08/2013
- JC 09:09 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: MItyDSP L138-FI-236-RL Industrial IO Board 80-000268RI-2 rev. B, wont reset and no output on serial port.
- Chris,
Have you tried to add another null modem adapter into the mix or a straight-thru cable just as a sanity check.
-Jonathan - CB 06:54 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: MItyDSP L138-FI-236-RL Industrial IO Board 80-000268RI-2 rev. B, wont reset and no output on serial port.
- Hi Bob,
I have been trying with both screen and putty.
Both seem to work fine when I loopback the tx and rx lines on the serial port.
Thanks,
Chris.
07/07/2013
- BD 09:47 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: MItyDSP L138-FI-236-RL Industrial IO Board 80-000268RI-2 rev. B, wont reset and no output on serial port.
- Hello Christopher,
What terminal program are you using to connect to the serial port on your PC?
-Bob
07/05/2013
- MC 01:10 PM MitySOM-335x (ARM Cortex-A8 Based Products) 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... - I am trying to load the hello world program.
So I set up the serial port on my pc with the following settings:
Baud Rate = 115200
Data = 8 bit
Parity = none
Stop = 1 bit
Flow Control = none
I also connected the provided null...
07/04/2013
- MW 07:58 AM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: bad timing of RS485 TXE when using omap-serial driver
- I think you are missing part of the patch, which was original written against 3.1 of the kernel.
Take a look at the serial_omap_stop_tx() call in our "3.2 branch omap_serial.c":http://support.criticallink.com/gitweb/?p=linux-mityarm-... - MW 07:44 AM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: bad timing of RS485 TXE when using omap-serial driver
- Do you see this problem on all the UARTS? Or just UART4?
-Mike
- MC 02:15 AM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: bad timing of RS485 TXE when using omap-serial driver
- sure, here it is.
I also put the patched omap-serial.c to check that your patch has been properly applied and the points I've put "printk"-s.
Cheers,
Mihai
07/03/2013
- MW 03:44 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: bad timing of RS485 TXE when using omap-serial driver
- Hello Mihai,
Would you be willing to share your modified send.c code?
-Mike - I've used your nice guidelines describe here: http://support.criticallink.com/redmine/projects/armc8-platforms/wiki/Driving_RS-485_transceivers
to implement the low-latency RS485 handling in the linux kernel (v3.2) - I used the patch2 b... - KW 03:29 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: Writing UBIFS rootfs to AM3354 with 512MB NAND
- Tim,
Thanks for testing this. My module PN: *80-000517RC-1B*.
I believe the problem is with the lower MTD NAND driver for NAND part MT29F4G08ABAEAWP. Simple NAND writes are giving me problems.
Kim
- JC 01:34 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: Writing UBIFS rootfs to AM3354 with 512MB NAND
- Kim,
Due to the long holiday weekend, i'm not sure this will get looked at until atleast Monday.
Also what is the part number and model number of your module?
Thanks
Jonathan - JC 01:32 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: Writing UBIFS rootfs to AM3354 with 512MB NAND
- For our 512mb nand, I believe the format command should be @ubiformat /dev/mtd8 -s 1024 -O 4096@ but it doesn't work.
- JC 01:31 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: Writing UBIFS rootfs to AM3354 with 512MB NAND
- Testing on a 256MB nand som, I was able to format mtd8 and mount it. {{collapse(See output:)
- JC 01:17 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: Writing UBIFS rootfs to AM3354 with 512MB NAND
- Kim,
I tried to do the ubiformat on a 512MB nand som here and I ran into the same problem. It marked the whole nand as bad.
I was able to reset the bad block count by running the following in u-boot. Note: This will delete all data ... - KW 09:36 AM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: Writing UBIFS rootfs to AM3354 with 512MB NAND
- Hi Tim,
Could someone at Critical Link send me the commands used for creating the ubifs image and writing it to the 512MB NAND flash on your MityARM development board?
Thanks,
Kim
- I am switching from TI Evaluation Board to MityARM-335x Development Kit. I am using Ubuntu 12.04 host machine for development and NFS with client and server having static IP addresses is our preferred configuration.
It worked well with ... - MW 07:49 AM MityDSP (TI TMS320C6xxx Based Products) FPGA Development: RE: How to use the sdram for FPGA and EMIFA bus in MityDSP-Pro board?
- Hello Mr. Feng,
I am attaching the DDR MIG Test Bench that we originally used to validate the FPGA DDR connection. At a minimum, you should find the FPGA connections in the UCF contained within.
The MIG project for this is somewha... - Hello,
Our project needs a large mount of data transfer, so I want to know the assignment of pin for sdram of FPGA and the EMIFA address bus(i_emif_aea), I cann't find them in MityDSP-Pro.ucf. will you give me some FPGA demo for them. ...
07/02/2013
- TI 08:09 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: Writing UBIFS rootfs to AM3354 with 512MB NAND
- Kim
I am not super familiar with ubifs, but it seems it can be a bit tricky to master. I know it can be done, as some of our customers are using it. One thing I have seen is to make sure the subpage size is the same as the page size (4k... - KW 07:14 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: Writing UBIFS rootfs to AM3354 with 512MB NAND
- Here some additional information that maybe helpful. After ubiformat the erase blocks are all marked BAD.
- KW 05:01 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: Writing UBIFS rootfs to AM3354 with 512MB NAND
- Hi Tim,
I've been following this steps and it looks like the ubi.img is writing to NAND, but I get error 28 (No space left on device) when trying to attach. Here are my steps for writing ubi.img: - TI 02:53 PM MitySOM-335x (ARM Cortex-A8 Based Products) Software Development: RE: Writing UBIFS rootfs to AM3354 with 512MB NAND
- Kim
TI has a few pages on this.. check out http://processors.wiki.ti.com/index.php/UBIFS_Support
As long as you program the ubifs from linux there should not be an issue.
There is currently a disconnect between ECC used by u-boot and ... - What's the procedure for creating and writing the Linux UBIFS rootfs to the AM3354 512MB NAND? What ECC is used for the UBIFS partitions?
-Kim
- SH 04:18 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Simple example needed
- Yes, I'm looking for an example similar to the Hello World ARM/DSP project...
- MW 03:32 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Simple example needed
- Is your ARM processor going to run linux?
- I am using the MityDSP L-138F Industrial development board. I am not finding the examples for that board given in the MDK_2013-05-15 very useful. Is there a simple project that would show the use of the FPGA GPIO core, for example, tha...
- MW 10:51 AM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: Hardware Reset
- On the MityDSP-L138F, RESET_IN pin is fed into a TPS3808G33DBVR reset monitor circuit. It is not connected to the FPGA or the OMAP-L138 directly. The output RESET of the TPS3808 is fed to the RESET pin on the OMAP-L138. The OMAP-L138 ...
- CL 10:06 AM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: Hardware Reset
- Hi Mike,
In effect yes. I was wondering if the device/circuit which drives the reset pin of the OMAP processor is also
connected to the FPGA and if yes, which pin.
Regards,
Steven.
07/01/2013
- MW 07:49 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: Hardware Reset
- When there is a power on reset, the FPGA will be re-initialized (the program pin is pulled low) and will require reprogramming.
Are you looking for an additional pin that may be used to reset just the FPGA?
-Mike
- Hi There,
Is there a pin on the MityDSP-L138F processor board FPGA which is attached to a
dedicated power-on/hardware reset source which can be used to initialise/reset registers?
Kind regards,
Steven Bremner.
06/28/2013
- CR 01:19 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: mtd->read (...) returned ECC error
- Hi Tim,
since today, the same problems as already mentioned are happening at the moment on my board.
Before I started with my development, I flashed the mityomap-base.jffs2 (MDK_2012-08-10) fs on the NAND. This works pretty well unti...