Activity
From 06/20/2013 to 07/19/2013
07/18/2013
- 06:50 PM 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 define...
- 05:54 PM 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 a...
- 05:20 PM Software Development: RE: RS-485 problems
- Actually, I take that back. The pin out is illustrated in Figure 2 of the specification....
-Mike
- 05:13 PM 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-... - 05:08 PM 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 i...
- 04:59 PM 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... - 04:07 PM 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,...- 03:27 PM Software Development: RE: RS-485 problems
- OK, here is what I see:
mitydsp@mitydsp-VirtualBox:~/linux-davinci$ git branch
master
* mitydsp-linux-v3.2
mi... - 03:24 PM 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... - 03:22 PM Software Development: RE: RS-485 problems
- Btw press q to escape @git log@.
- 03:21 PM 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... - 03:18 PM 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 T... - 02:43 PM 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 "CROS...
- 02:06 PM Software Development: RE: RS-485 problems
- I seem to have the same problems - here is the output from a new shell:...
- 01:52 PM 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 environm...
- 01:41 PM 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... - 11:26 AM Software Development: RE: RS-485 problems
- If you have our repository cloned already.......
- 11:14 AM Software Development: RE: RS-485 problems
- A newbie question - How do I build this particular branch of the kernel?
- 10:34 AM 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 ED... - 12:30 PM 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? ... - 12:24 PM 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 ...
07/17/2013
- 09:17 PM 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 ...
- 08:55 PM 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... - 08:32 PM 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...
- 07:05 PM 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... - 06:48 PM 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 c...
- 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 "sen...
- 07:38 AM 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 (per...
07/16/2013
- We have a project which uses CS4 and CS5 to write and read data from a pair of FPGA FIFOs respectively. CS4 is used e...
07/15/2013
- 05:23 PM 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 exa...
07/14/2013
- 08:22 AM 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...
07/12/2013
- 02:02 AM 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:/... - 01:58 AM Software Development: RE: shared memory in the DSP Helloworld example
- Thanks mike. That cleared my doubts.
07/11/2013
- 09:50 AM 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 t...
- 09:33 AM 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.... - 07:44 AM 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 interr... - 07:12 AM 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... - hi,
Where does the memory allocated by GetBuffer() reside? Is it in the external RAM or OMAP's internal memory? Fo...
07/10/2013
- 07:16 AM 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 app... - 07:01 AM 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 ... - Hello,
I rebuilt the SPI serial flash tool (sfh_OMAP-L138.exe) from the MDK_2013_05_15 sources. Therefor I changed...
07/09/2013
- 10:46 AM 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... - 09:55 AM 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 seria... - 09:50 AM 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. - 09:15 AM 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 ca...
07/08/2013
- 09:09 AM 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 che... - 06:54 AM 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 lin...
07/07/2013
- 09:47 PM 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
- I am trying to load the hello world program.
So I set up the serial port on my pc with the following settings:
...
07/02/2013
- 04:18 PM Software Development: RE: Simple example needed
- Yes, I'm looking for an example similar to the Hello World ARM/DSP project...
- 03:32 PM 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 th...
- 10:51 AM 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 FP...
- 10:06 AM 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 ...
07/01/2013
- 07:49 PM 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 repr...
- Hi There,
Is there a pin on the MityDSP-L138F processor board FPGA which is attached to a
dedicated power-on/har...
06/28/2013
- 01:19 PM 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 sta...
06/27/2013
- 04:56 AM Software Development: RE: Fail to boot the kernel after running setup.sh in DVSDK 4.03
- Hi Mike & Jonathan,
Really appreciate your help!
The kit could load the kernel now.
-Derek
06/26/2013
- 04:48 PM Software Development: RE: Fail to boot the kernel after running setup.sh in DVSDK 4.03
- Derek,
Where you aware of this wiki page?
http://support.criticallink.com/redmine/projects/arm9-platforms/wiki/Dv... - 07:26 AM Software Development: RE: Fail to boot the kernel after running setup.sh in DVSDK 4.03
- Hi Derek,
The kernel that comes with the DVSDK (uImage-da850-omapl138-evm.bin) will not work with the MityDSP-L138... - 02:19 PM FPGA Development: RE: Problem building IndustrialIO project build_lcd_rev_c
- I found the solution to the problem. I had to remove the Xilinx device that was in the iMPACT window (left over from...
- 01:57 PM FPGA Development: RE: Problem building IndustrialIO project build_lcd_rev_c
- OK clearly it's not finding the file (according to the log). Looks like you have spaces in your path to the bit file...
- 01:54 PM FPGA Development: RE: Problem building IndustrialIO project build_lcd_rev_c
- That does not seem to work. WHen I double click on "Generate File" I get a big red "Generate Failed" box. The word "b...
- 01:31 PM FPGA Development: RE: Problem building IndustrialIO project build_lcd_rev_c
- Not having the tools up in front of me. I think you can put more than one bit file into a configuration PROM (to sup...
- 01:22 PM FPGA Development: RE: Problem building IndustrialIO project build_lcd_rev_c
- I built a simple project based on files for GPIO_Test from Conor O in the post "Xilinx design suite 14.2 and MDK_2012...
- 09:02 AM FPGA Development: RE: Problem building IndustrialIO project build_lcd_rev_c
- Hi Steven,
The issue here is that entity description for the i2c component has changed since the Rev A and B boar... - 07:29 AM PCB Development: RE: Expansion IO mating headers type
- We use "Molex 87759-5050":http://www.mouser.com/ProductDetail/Molex/87759-5050/?qs=%2Fha2pyFadujxwC2WDHBby6OIFIiNwyQw...
- 04:55 AM Software Development: RE: Data Transfer over DSPLink
- Great!
This works :)
Thanks,
Christian
06/25/2013
- 09:30 PM Software Development: RE: Fail to boot the kernel after running setup.sh in DVSDK 4.03
- Hi Jonathan,
Thank you for your reply:)
I'm using the Industrial IO Development Kit with MityDSP-L138F. No ch... - 10:02 AM Software Development: RE: Fail to boot the kernel after running setup.sh in DVSDK 4.03
- Derek,
I'm unclear with what you changed between when it was last working and now.
-Jonathan - 12:56 AM Software Development: RE: Fail to boot the kernel after running setup.sh in DVSDK 4.03
- I have build the kernel with codes in git://support.criticallink.com/home/git/linux-davinci.git
No more output is ... - Following on from a similar question in the forum "Creating FPGA Base-Project - core manager problem" I am trying to ...
- 03:48 PM Software Development: RE: CPU Clock and FPGA clock interaction
- Based on what you have told me about Linux operating points, I won't be fooling with the CPU frequency. I will find ...
- 02:51 PM Software Development: RE: CPU Clock and FPGA clock interaction
- Hi Steven,
If you need a specific frequency for your FPGA, I would recommend adding an external Crystal or Oscilla...
06/24/2013
- 10:28 PM Software Development: RE: Fail to boot the kernel after running setup.sh in DVSDK 4.03
- uboot env:
> U-Boot > printenv
> flashuboot=tftp 0xc0700000 mityomap/u-boot-ubl.bin; sf probe 0; sf erase 0x10000... - Hi all, I have just running setup.sh in DVSDK_4.03, and MityDSP-L138F could not boot the kernel now.
Serial port o... - 03:10 PM Software Development: RE: Networking requires ifup
- Bingo. Good catch. I didn't look close enough at the comma/space separators.
Thanks for your help!
Joe. - 03:05 PM Software Development: RE: Networking requires ifup
- The big difference between your boot and mine is:
I have... - 02:55 PM Software Development: RE: Networking requires ifup
- The only thing in the boot log that jumps out at me is:...
- 11:38 AM Software Development: RE: Networking requires ifup
- Joe,
Looking at the networking startup script, all it does is run ifup -a to bring the interfaces up. Could you t... - Starting a new post for this question.
When the MityDSP (L138F) boots up, I am unable to connect via SSH. I have ... - For various reasons I would prefer an FPGA clock of 96 MHz. Am I right in assuming that if I modify the kernel to ge...
- 10:29 AM Software Development: RE: DSP Helloworld execution error
- commenting out the deletes solved the problem
thanks - 08:57 AM Software Development: RE: DSP Helloworld execution error
- Vinod,
If you look at the arm_main.cpp file, the application doesn't wait for you to press q. Its currently setup... - hi,
I could successfully compile the arm_main.cpp in eclipse and dsp_main.cpp in ccs. But upon execution the exit ... - 10:21 AM Software Development: RE: Missing Angstrom Packages
- Good to know.
As far as eth0 not coming up some things to look at:
* Make sure that ip=dhcp was passed to kernel... - 09:51 AM Software Development: RE: Missing Angstrom Packages
- Thanks Jonathan -
That worked just fine - I started down that path but didn't get the right combination of package... - 10:05 AM Software Development: RE: DSP Hello World error message
- Thanks for your help
- 09:02 AM Software Development: RE: DSP Hello World error message
- Nick,
I've just updated the wiki page with a new arm_main.cpp and cleaned up some of the instructions. The error ... - 09:02 AM Software Development: RE: Warning messages when running DSP Hello World
- Nick and François,
I've just updated the wiki page with a new arm_main.cpp and cleaned up some of the instructions...
06/23/2013
- The link to "FPGA Core Creation Guidelines" appears to be broken in the Wiki - can anyone point me to the relevant in...
Hi
Wat are recomended type of male headers mating with the Industrial IO Development Kit expansion IO connectors J...
06/21/2013
- 11:47 AM Software Development: RE: Missing Angstrom Packages
- I was using the latest MDK filesystem but I suspect it will work the same for your version.
-Jonathan - 11:46 AM Software Development: RE: Missing Angstrom Packages
- Joe,
This seems to be a problem with the latests Angstrom repos. I was able to find a forum post related to this.... - Good Morning -
Has anyone had any luck getting "missing" Angstrom packages installed when using the 2012-08-10 MDK...
06/20/2013
- 03:35 PM Software Development: RE: DSP Hello World error message
- [Edit] Woops I quoted myself instead of edited.
- 03:35 PM Software Development: RE: DSP Hello World error message
- Steven,
I just followed the [[DSP_Hello_World]] tutorial and didn't have the same build errors you did. It should... - 11:12 AM Software Development: RE: Data Transfer over DSPLink
- Messages don't have to be strings. You can create message structures (and include headers, for example, that contain...
- Hi,
I was able to run the "DSP Hello World" totorial in the wiki but there i can only transfer messages between bo... - 10:07 AM Software Development: RE: GPIO Output immediately after power on
- Thanks Mike,
the stronger pull downs should be acceptable in my design.
christian
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