Mity CPU Platforms » MityDSP-L138 (ARM9 Based Platforms)

12/10/2013

09:27 PM Software Development: RE: First base with USB, OMAP-L138F

Hello!
If you have got console why don't you just copy files from your PC to board?
And another option - if USB hos... Dmitry Gorulko

03:56 PM Software Development: Call to tcDspFpgaGpio::ConfigurePin() makes the Dsp crash

Dear Sirs,
I have to use a GPIO bank over FPGA to route some interrupts (let's say 8) through the fpga to the DSP.
... Michele Canepa

12:55 AM Software Development: RE: Compiling the HelloWorld application with CGT

Thanks Mike,
I will try that out. However for the time being, I am continuing with CCS on Windows. :)
Regards
... Prashant Dabholkar

12/06/2013

11:49 AM Software Development: RE: Accessing SPI1 bus

I don't see a SPI /dev/ entry.
Tried this (as in the example at https://www.kernel.org/doc/Documentation/spi/spi... Mary Frantz

11:07 AM Software Development: RE: Accessing SPI1 bus

Hi Mary,
Reading and writing over a SPI bus on Linux is pretty simple. You need to open a file descriptor for the... Gregory Gluszek

10:41 AM Software Development: Accessing SPI1 bus

How do you read/write to a device on the SPI1 bus (CS1) on the ARM side? Is there an example? Can I do low level re... Mary Frantz

09:43 AM Software Development: RE: First base with USB, OMAP-L138F

Once you have the network connection up you can easily move files using ssh and winscp. Jonathan Cormier

09:39 AM Software Development: RE: First base with USB, OMAP-L138F

It maybe of use to you to have the usb port act as a network device so you can send files over the network. See http... Jonathan Cormier

07:01 AM Software Development: First base with USB, OMAP-L138F

I have inherited development responsibility for a custom base board using an OMAP-L138F SoM. I need to get USB worki... Helmut Forren

12/05/2013

02:59 PM Software Development: RE: DSP software sometimes does not start

Thanks for the reply Mike - I took a look at my code and the Debug outbound is created before the inbound in the DSP ... Steven Hill

12:37 PM Software Development: RE: DSP software sometimes does not start

I suspect that you may have a race condition between the ARM and the DSP setting up inbound and outbound message Qs.
... Michael Williamson

12/04/2013

05:41 PM Software Development: DSP software sometimes does not start

I have a strange problem with starting up some software on bootup. I have followed the instructions in this link:
[... Steven Hill

01:46 PM Software Development: RE: Loading DSP-Code from Linux without DSPLink/DSPBios

Hello Benedikt,
As far as I know, we've really only had experience running DSP code that uses the BIOS. Have you ... Gregory Gluszek

12:15 PM Software Development: Loading DSP-Code from Linux without DSPLink/DSPBios

Hej hej,
I have a coff-file with my DSP-Algorithm which runs perfectly when I start it via JTAG or via U-Boot. [Li... Benedikt K.

12/03/2013

04:21 PM Software Development: RE: Read-only file system using systemd for startup

I think that's the first step. The programs that have problems should then print error messages in the boot log. Mi... Jonathan Cormier

04:19 PM Software Development: RE: Read-only file system using systemd for startup

Yes, I was going to try just updating /etc/fstab and the bootarg environment variable and see if that works...what do... Steven Hill

02:48 PM Software Development: RE: Read-only file system using systemd for startup

Stephen,
Do you have an /etc/fstab in your filesystem? Have you tried updating that file as described in step 4?
... Bob Duke

12/02/2013

08:21 PM Software Development: Read-only file system using systemd for startup

There is a discussion of how to set up a read-only filesystem in the following link:
[http://support.criticallink.co... Steven Hill

10:44 AM Software Development: RE: problem with spinlocks in linux kernel module

Steven,
I think the reason why you see the difference is that your PC is likely a multi-core (multi-processor), on... Michael Williamson

09:54 AM Software Development: problem with spinlocks in linux kernel module

Hi,
I tried to run a trivial test driver pasted in below on a PC using Redhat linux and on the ARM core of the OMA... stephan berner

12:51 AM Software Development: RE: "Regarding developing real time application"

Hi Mike,
We are planning UART from linux on arm9 cortex. Or can you suggest any feasible solution in this regard, ... Naveen K.S

11/30/2013

07:34 AM Software Development: RE: "Regarding developing real time application"

Do you mean using a "UART from Linux":http://en.wikibooks.org/wiki/Serial_Programming/Serial_Linux? Or are you tryin... Michael Williamson

02:21 AM Software Development: "Regarding developing real time application"

Dear sir,
we are working on developing vision system, wherein we are using your mitydsp L138F SOM and Industrial I... Naveen K.S

07:29 AM FPGA Development: RE: Driving DVI-D with Spartan6 LX45 Fpga

The issue cannot be resolved without redesigning the PCB.
If you are using an LX-45, you cannot use the DVI inte... Michael Williamson

02:03 AM FPGA Development: Driving DVI-D with Spartan6 LX45 Fpga

From the following discussion, it is said that Spartan6 LX45 FPGA based MityDSP-L138F SOM cannot drive DVI-D on Indus... Naveen K.S

11/28/2013

07:52 AM Software Development: RE: "Regarding driving two displays using MitydspL138F vision development kit"

The DVI interface on the L138F / Industrial I/O kit is DVI-D (see "wikipedia page about DVI interface types":http://e... Michael Williamson

12:15 AM Software Development: "Regarding driving two displays using MitydspL138F vision development kit"

"
ARM9 Based Platforms - Software Development: RE: "Regarding Driving Displays in MitydspL138F Vision Devlopement Ki... Naveen K.S

11/27/2013

08:09 PM Software Development: RE: "Regarding Driving Displays in MitydspL138F Vision Devlopement Kit"

If both the LCD display and the display connected to the DVI interface can run using the timings (e.g., same resoluti... Michael Williamson

02:15 AM Software Development: "Regarding Driving Displays in MitydspL138F Vision Devlopement Kit"

Hi sir,
Initially our requirement is to drive two displays in MitydspL138F VDK.
In Mitydsp L138F based vision d... Naveen K.S

11/23/2013

03:34 PM FPGA Development: RE: JFFS2 driver errors

You can do it in the DSP using tcDspSyscfg::SetMasterPriority() in the dsp core library.
-Mike
Michael Williamson

01:30 PM FPGA Development: RE: JFFS2 driver errors

Thanks for those suggestions, Mike. According to Table 11-2, the default priority for EDMA is 0 (highest) and for AR... Steven Hill

08:40 AM FPGA Development: RE: JFFS2 driver errors

Hi Steven,
Is the DMA priority configured higher than the ARM data access priority in the Master Priority Configur... Michael Williamson

11/22/2013

11:12 PM FPGA Development: JFFS2 driver errors

I'm seeing some errors similar to those mentioned in the following thread:
http://support.criticallink.com/redmine/b... Steven Hill

11/21/2013

07:14 AM Software Development: RE: Compiling the HelloWorld application with CGT

You should dump out the full build texts between the two operations and compare.
I suspect that the memory configu... Michael Williamson

11/18/2013

08:43 PM Software Development: Compiling the HelloWorld application with CGT

Hi,
I was trying to compile the DSP HelloWorld Application available at the following location. http://support.cri... Prashant Dabholkar

11:58 AM Software Development: RE: EDMA conflict DSP <-> Linux

Hej Mike,
I just checked the master priorities. I changed it to the following values:
> 0: EDMA3_0_TC0
> 1: DSP ... Benedikt K.

10:42 AM Software Development: RE: EDMA conflict DSP <-> Linux

The reservation of resource may be non-sense, but the resources specific to device drivers (like McASP channel queues... Michael Williamson

09:54 AM Software Development: RE: EDMA conflict DSP <-> Linux

The bug was in the param-sets of the edma which were not set correctly in my application.
But now I have another i... Benedikt K.

10:06 AM Software Development: RE: Linux startup with app running after boot

Steven,
Once you have your program output going to stdout, you can redirect it to a file that can be viewed after ... Bob Duke

09:31 AM Software Development: RE: Linux startup with app running after boot

You should be using normal stdout printf's in your program and not opening the serial port. Jonathan Cormier

11/16/2013

08:13 PM Software Development: RE: Linux startup with app running after boot

I was wrong about starting the app with the full pathnames for both the app and the DSP executable. I wrote a servic... Steven Hill

11/15/2013

07:26 PM Software Development: RE: Linux startup with app running after boot

Thanks for that, but how do you do the same thing with a systemd service? My filesystem is using systemd for startup. Steven Hill

06:30 PM Software Development: RE: Linux startup with app running after boot

Steven
In your script that runs the app, just "cd" to the correct directory. I.e.
cd /mnt/user_nand
./myApp mydspE... Tim Iskander

06:27 PM Software Development: RE: Linux startup with app running after boot

I have what might seem like a dumb question. I like the idea of starting the app as a service, and I have written an... Steven Hill

11/12/2013

02:33 PM Software Development: RE: EDMA conflict DSP <-> Linux

Was the bug in the kernel or your application? Jonathan Cormier

02:09 PM Software Development: RE: EDMA conflict DSP <-> Linux

Found the reason. The DMA configuration was wrong. Benedikt K.

07:59 AM Software Development: RE: Linux startup with app running after boot

Steven
One other note..
If you are using a newer filesystem with systemd (does /etc/systemd exist) things are a bit... Tim Iskander

07:52 AM Software Development: RE: Linux startup with app running after boot

Steven
1 - No you don't need to log in as root... the init system will run your script for you. One thing that may... Tim Iskander

11/11/2013

08:28 PM Software Development: Linux startup with app running after boot

I am at the final stage in getting my project working on the MityDSP L138 board. I want to load the FPGA control mod... Steven Hill