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From 08/15/2013 to 09/13/2013

09/12/2013

08:45 AM Software Development: DSP EDMA Semaphore problem
Hello,
I have succesfully transferred the blocks of data using the BlockTransfer Method from DspQDMA.cpp (see thread...
Rafał Krawczyk

09/11/2013

07:25 PM Software Development: RE: Debugging in CCSv5 using GDB
Steve,
I have been unable to reproduce the issue and the obvious parts of your python environment seem to be confi...
Bob Duke
05:58 PM Software Development: RE: Debugging in CCSv5 using GDB
I would appreciate some help with this - I have no idea how to solve this problem. Without GDB working I have no way... Steven Hill

09/10/2013

10:25 PM Software Development: RE: Linux blocks DSP-core access to EMIFA
Hello!
I have found a root of the problem - EMIFA goes to Disable state during kernel booting. Previously I have b...
Dmitry Gorulko
09:57 AM Software Development: RE: Linux blocks DSP-core access to EMIFA
Mike, yes, I do like that and observe both - memory window and regs tab in CCS and my test program does an output via... Dmitry Gorulko
09:02 AM Software Development: RE: Linux blocks DSP-core access to EMIFA
Hmmm.
The MIDR is read only, it cannot be changed by any software. I haven't seen behavior like this before.
A...
Michael Williamson
07:59 AM Software Development: RE: Linux blocks DSP-core access to EMIFA
Michael, I have simplified the setup: as I wrote, now DSP-core reads just several registers and EMIFA_MIDR_REG which ... Dmitry Gorulko
07:41 AM Software Development: RE: Linux blocks DSP-core access to EMIFA
u-Boot is the only software (as opposed to the kernel) that should be modifying the EMIFA registers if you are using ... Michael Williamson
06:52 AM Software Development: RE: Linux blocks DSP-core access to EMIFA
Could it be related to caching? Dmitry Gorulko
06:13 AM Software Development: RE: Linux blocks DSP-core access to EMIFA
I wrote that kernel resets EMIFA setups - I mean CCS debug starts to show 0's for EMIFA registers and for other perip... Dmitry Gorulko
03:55 AM Software Development: RE: Linux blocks DSP-core access to EMIFA
Does anybody use DSP-EMIFA-FPGA communication with DSP using no OS? Dmitry Gorulko

09/09/2013

07:28 AM Software Development: RE: Linux blocks DSP-core access to EMIFA
2.6.34 Dmitry Gorulko
07:12 AM Software Development: RE: Linux blocks DSP-core access to EMIFA
What version of the kernel are you using? Michael Williamson
05:50 AM Software Development: RE: Linux blocks DSP-core access to EMIFA
Ok, I see the reason - kernel booting resets EMIFA setups. Is there any way to prevent it than? Dmitry Gorulko
04:47 AM Software Development: Linux blocks DSP-core access to EMIFA
Hello!
DSP-core reads memory mapped FPGA register by EMIFA. When ARM-core runs UBOOT everything works fine. When L...
Dmitry Gorulko

09/06/2013

07:32 PM Software Development: RE: SIGNAL issues with DSPLink
I was able to make the alarm work by modifying CFG_linux.c and rebuilding DSPLink. I tried two methods:
1. turn off...
Steven Hill
06:37 PM Software Development: SIGNAL issues with DSPLink
I am trying to use the alarm() function in an application much like DSPHelloWorld. But if you add an alarm the applic... Steven Hill
12:18 PM Software Development: RE: Debugging in CCSv5 using GDB
'which python' returns the version that is in /usr/local/oecore-i686...
But if I run 'arm-angstrom-linux-gnueabi-g...
Steven Hill
11:29 AM Software Development: RE: Debugging in CCSv5 using GDB
Steven,
That looks good, I accidentally included "python" in the directory name. You have confirmed the python ex...
Bob Duke
10:01 AM Software Development: RE: Shutdown misbehaving
Helmut,
As long as your application doesn't need to do any cleanup (saving files), the kill -9 should be ok.
...
Jonathan Cormier
10:00 AM Software Development: RE: Shutdown misbehaving
My guess is that the DSPLINK driver library is catching the signals and shutting itself down (a default behavior to s... Michael Williamson
09:57 AM Software Development: RE: Shutdown misbehaving
Probably RESOLVED.
There was another bug I thought unrelated, where I was calling system("poweroff.sh") multiple t...
Helmut Forren
09:24 AM Software Development: Shutdown misbehaving
Under Angstom linux on a mityomap L138F, I've created /etc/rc0.d/S99poweroffAPP.sh, a symbolic link of /etc/init.d/po... Helmut Forren

09/05/2013

07:59 PM Software Development: RE: Debugging in CCSv5 using GDB
I don't have a python directory in the /usr/local/oecore-i686/sysroots/i686-angstromsdk-linux/usr/bin directory, but ... Steven Hill
06:12 PM Software Development: RE: Debugging in CCSv5 using GDB
Steven,
It looks like it's trying to use the distribution's python (which likely doesn't have the pydebug package)...
Bob Duke
05:26 PM Software Development: RE: Debugging in CCSv5 using GDB
I followed the steps in the 'VM Build Steps" part of the Linux Build Virtual Machine tutorial - except that I install... Steven Hill
05:18 PM Software Development: RE: Debugging in CCSv5 using GDB
I am running with a Ubuntu Linux distribution - 12.04LTS in VirtualBox Manager.
More information - 'gdb' run from ...
Steven Hill
04:57 PM Software Development: RE: Debugging in CCSv5 using GDB
Hello Steven,
Are you running CCSv5 from a Critical Link Virtual Machine image or from your own Linux distributio...
Bob Duke
03:33 PM Software Development: RE: Debugging in CCSv5 using GDB
More information - I discovered that I was using the default gdb, so changed that to the 'usr/local/oecore-i686/sysro... Steven Hill
02:52 PM Software Development: Debugging in CCSv5 using GDB

I am using CCSv5 to create projects using the Critical Link toolchain. This is working fine - DSPHelloWorld etc ru...
Steven Hill

09/04/2013

02:27 PM Software Development: RE: Graceful shutdown at what level?
I'm not aware of any specific process monitoring programs that we use. I know that system-D has the ability to do it... Jonathan Cormier
12:10 PM Software Development: RE: Graceful shutdown at what level?
CORRECTION: Notes should do symbolic link copy: file /etc/rc0.d/S99hgfshutdown created via "cd /etc/rc0.d" and "cp -s... Helmut Forren
12:01 PM Software Development: RE: Graceful shutdown at what level?
Jonathan,
In fact I just got that half working a moment before seeing your post, and completely working now. I pu...
Helmut Forren
10:47 AM Software Development: RE: Graceful shutdown at what level?
Helmut,
You could try adding the KILL voltage script to /etc/rc0.d. If you look there you can see that the filesy...
Jonathan Cormier
10:35 AM Software Development: RE: Graceful shutdown at what level?
Michael & Tim:
I sincerely appreciate your advice and want to follow through as best that I can. While I am ultim...
Helmut Forren

09/03/2013

06:14 PM Software Development: RE: Graceful shutdown at what level?
Helmut
I would think you could use the linux power management features to do this. Much like you can push a button o...
Tim Iskander
06:03 PM Software Development: RE: Graceful shutdown at what level?
Well,
Some questions come to mind as you have a couple of isses.
- Is your application writing anything to th...
Michael Williamson
04:53 PM Software Development: Graceful shutdown at what level?
I've inherited someone else's hardware design, based on the Critical Link OMAP-L138F SoM, and I must finish up the so... Helmut Forren
02:04 PM Software Development: RE: Programming fpga from inside ARM application
Thanks, Mike. I am running linux, and the system() call was just what I was looking for. Steven Hill

09/02/2013

08:36 AM Software Development: RE: Programming fpga from inside ARM application
Is the ARM an linux application or a bare metal application?
If it is a linux application, you will need to write ...
Michael Williamson

08/30/2013

12:48 PM Software Development: Programming fpga from inside ARM application
We have examples of how to program the FPGA from uboot or from the linux command prompt. I have used both methods s... Steven Hill
11:15 AM Software Development: RE: OMAPL138 DSP-EDMA3 transfer from EMIFA when Linux is running on ARM
Another update...
Now Ti reports that I have to say the linuxkernel to reserve the DMA-channels what I using on th...
Christian Rückl
08:20 AM Software Development: RE: OMAPL138 DSP-EDMA3 transfer from EMIFA when Linux is running on ARM
I got an response from TI. this behavior has probably something to do with the used IRQ channel on ARM side. ARM uses... Christian Rückl

08/29/2013

08:31 PM Software Development: RE: tcDspFirmware::print_version_info() writes past end of buffer
Hi John,
Thanks for the information, we'll patch this up for the next release. I'm very sorry for the bug (and c...
Michael Williamson
05:22 PM Software Development: tcDspFirmware::print_version_info() writes past end of buffer
print_version_info() can write more bytes than the 'anMaxLen' argument. The workaround is to pass it a large enough ... John Cumming
07:38 AM Software Development: RE: OMAPL138 DSP-EDMA3 transfer from EMIFA when Linux is running on ARM
Thanks Mike for your quick answer!
I don't think so that it has something with my used timer(Timer64P3) to do. I p...
Christian Rückl
07:14 AM Software Development: RE: OMAPL138 DSP-EDMA3 transfer from EMIFA when Linux is running on ARM
I suspect that linux may be using the same EDMA resources or interrupts.
I think that the linux ARM-9 port may use...
Michael Williamson
07:09 AM Software Development: OMAPL138 DSP-EDMA3 transfer from EMIFA when Linux is running on ARM
Hi,
I'm not sure if this forum is the right place to post this question but i will do it an hopefully anybody can ...
Christian Rückl

08/28/2013

05:37 AM PCB Development: RE: The schematic of MityDSP-L138 Development Kit
Hi,tom
please e-mail me the link to download the design files for the MityDSP-L138F schematic,thx!
华 罗

08/26/2013

02:08 PM Software Development: RE: EMIFA Clock not present
The clock started working after some FPGA machinations.
New problem:

We can read registers from the FPGA but ...
Mary Frantz

08/24/2013

10:11 AM Software Development: RE: DSP EDMA IRAM DATA TRANSFER
Solved !
The problem was in the declaration of arrays to which I have copied the content of pointers. If you general...
Rafał Krawczyk

08/23/2013

06:40 PM Software Development: stepper interrupts
The tcDspFpgaStepper class has a SetInterruptEnable() method that wasn't in MDK 2.11.
If you create your instance of...
John Cumming
07:33 AM Software Development: RE: handover I2C bus control from ARM to DSP
The I2C0 bus (I believe), according to the datasheet, controls both the factory configuration data as well as a Power... Michael Williamson

08/20/2013

11:48 AM Software Development: handover I2C bus control from ARM to DSP
Hi,
I am working with the mity L138 board, running Angstrom linux on the ARM and dspbios on the DSP. Currently, th...
stephan berner
10:26 AM Software Development: RE: EMIFA Clock not present
We are baffled. I have checked the following registers using a JTAG emulator (Blackhawk USB560 on the DSP side).
...
Mary Frantz
08:49 AM Software Development: RE: Printf when application loads and starts on boot-up
The short answer is yes. The long answer is just give it a shot, you never know what you might learn. :)
-Jonathan
Jonathan Cormier

08/19/2013

09:38 PM Software Development: Printf when application loads and starts on boot-up
According to the FAQ on "How do I make my application run automatically on startup" there will not be a controlling t... Steven Hill

08/15/2013

02:50 PM FPGA Development: RE: Problem programming FPGA with Linux driver
I guess I spoke too soon. I am still having this problem - with working FPGA code, sometimes I can get the cores to ... Steven Hill
12:34 PM FPGA Development: RE: Problem programming FPGA with Linux driver
I think I figured out the source of the problem myself. Although I didn't change anything in the module files for ba... Steven Hill
12:42 PM Software Development: RE: No DVI and serial output from MityDsp-L138 Industrial I/O board
I'm glad it's working Phil. I'm locking this thread, but if you have any other questions, please let us know.
Than...
Bob Duke
10:29 AM Software Development: RE: No DVI and serial output from MityDsp-L138 Industrial I/O board
Hi Bob,
There is no "Null Modem" printed on the serial cable provided with the dev kit. It works now after I put ...
Phil Chen
 

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