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

11/20/2012

10:52 PM Software Development: GPIO Interrupt: request_irq() returning error: EINVAL

Hi,
I have attempted to configure a digital io, from bank0, as an interrupt, using the AINTC. However, when I attemp... Keith Fletcher

05:57 PM Software Development: RE: Quick check of TLK100 ethernet PHY with U-boot

Hi Emmett,
Can you do a "config" command on both modules and confirm that the "EMAC configuration":http://support.... Michael Williamson

04:54 PM Software Development: RE: Quick check of TLK100 ethernet PHY with U-boot

We have 2 AM1808F SOM boards.
We realized that with the newer one, U-Boot does detect the TLK100PHP PHY.
The older ... Emmett Bradford

05:52 PM Software Development: RE: Mity DSP-L138 Development board - 3 UARTS needed for final design?

I am assuming you are not using a MityDSP-L138F (with FPGA), right? If you do, I would simply put a UART into the FP... Michael Williamson

11/19/2012

11:05 AM Software Development: RE: Power management in Linux on MityDSP-l138F

Hello,
We have been able to put the L-138 into DEEPSLEEP mode (using the RTC to wake up the device). This was tes... Michael Williamson

11/16/2012

03:19 PM Software Development: Quick check of TLK100 ethernet PHY with U-boot

I would like to verify communication with the TLK100PHP ethernet PHY using U-boot.
I have the identical circuit on m... Emmett Bradford

04:32 AM Software Development: Power management in Linux on MityDSP-l138F

Hi all,
I would like to know whether there has been any effort to put the L-138 in DEEPSLEEP.
In that case I would... jean-pierre bétend-bon

11/15/2012

10:40 AM Software Development: Mity DSP-L138 Development board - 3 UARTS needed for final design?

We are currently using your Mity DSP-L138 development board for software development until our own mother board is re... Angela Newman

11/13/2012

08:09 PM Software Development: RE: Ethernet over usb

Need help with the Linux kernel:
Generated the usb gadget, but cannot install it.
mitydsp@mitydsp-dev:~/workspace... Krishna Vallabhaneni

11/09/2012

01:57 PM Software Development: RE: How to change the pinmux

Spencer
u-boot does the initial pinmux setup, look in board/davinci/mityomapl138/mityomapl138.c
The kernel then se... Tim Iskander

01:50 PM Software Development: How to change the pinmux

I am working with a MityDSP L138 on a custom baseboard, and am having trouble figuring out how to modify the pinmux s... Spencer Mayott

01:50 PM Software Development: RE: Remote Debugging Hello DSP

Almost there ... I still have an issue.
John Pruitt said:
The error code 0x80008050 indicates that the connection... Mary Frantz

10:32 AM Software Development: RE: Remote Debugging Hello DSP

Yes, I can run from the command line twice.
One problem: I needed to put the full path name for the DSP executable... Mary Frantz

11/08/2012

08:28 PM Software Development: RE: Ethernet over usb

Succussfully generated and installed g_ether.ko on the mitydsp board, and configured the usb0 withe an ip adrees. Tha... Krishna Vallabhaneni

01:35 PM Software Development: RE: Ethernet over usb

The only way to get an invalid module format is if the kernel and modules aren't build from the same source / configu... Michael Williamson

01:45 PM Software Development: RE: How to build cmemk.ko

Thanks!
I found the cmemk.ko module in the the /lib/modules/3.2.0/extra/ folder along with dsplinkk.ko and others.... Mary Frantz

12:50 PM Software Development: RE: How to build cmemk.ko

The base and full filesystems in the MDK_2012-08-10 (MD_2012-08-10/fs/*.tgz) each have a cmemk.ko module located in t... Michael Williamson

12:36 PM Software Development: How to build cmemk.ko

I need to use the CMEM utility, but there is no cmemk.ko file. I am trying to build it, but can't find any instructi... Mary Frantz

01:23 PM Software Development: RE: CLK frequency increase using DSP only

OK.
The u-Boot / I2C commands to push the core voltage up to 1.3 volts, required for running at 456 MHz are as fol... Michael Williamson

12:55 PM Software Development: RE: Problems building a rootfile system

Hi Mads,
We are actually considering moving all of our SOM linux capable products to Yocto (which is pretty close ... Michael Williamson

08:05 AM Software Development: Problems building a rootfile system

I would like to build my own rootfile system for the mityarm 1808 dev kit. So far I have only succeeded with builds f... Mads Olav le Maire

11/07/2012

05:09 PM Software Development: RE: CLK frequency increase using DSP only

Great - thanks Mike. In addition to increasing the voltage, I'd also be most grateful for a list of (DSP or u-Boot) c... Arthur Helwig

04:29 PM Software Development: RE: CLK frequency increase using DSP only

Hello,
Some quick answers, though I must admit we don't normally abandon the ARM here in our applications, so you ... Michael Williamson

04:08 PM Software Development: CLK frequency increase using DSP only

Hi,
I'm using a MityDSP-L138F board (L138-FI-225-RC). I'm porting an existing C6748-based DSP project, that gets i... Arthur Helwig

11/05/2012

08:05 AM Software Development: RE: Using of SPI1 interface on DSP-Side?

The SPI1 (chip select 0) is used to communicate with the on-module SPI-NOR FLASH on MityDSP-L138/MityARM-1808 modules... Michael Williamson

04:53 AM Software Development: Using of SPI1 interface on DSP-Side?

Hi,
My plan is to connect a DAC on the SPI1 which is outrouted to the edgeconnector and control it by the DSP core... Christian Rückl

11/02/2012

12:27 PM PCB Development: RE: MityDSP-L138F Failure to Boot

Hi Emmett,
I think Wade has resolved his issue offline (there was a design issue on his baseboard that is now corr... Michael Williamson

11:34 AM PCB Development: RE: MityDSP-L138F Failure to Boot

Mike -
This is the same issue I am having on the 1808F board.
It boots reliably on your carrier, but not mine.
I... Emmett Bradford

10/31/2012

02:41 PM Software Development: RE: Databases for the MityDSP

That's at least one of my problems.
Thanks, I'll head to the other forum! Brian Compter

12:43 PM Software Development: RE: Databases for the MityDSP

Oh... Are you by chance using a MityARM-3359? If so, you should probably post in the "ARM Cortex-A8 Based Platforms ... Michael Williamson

12:34 PM Software Development: RE: Databases for the MityDSP

We are using the linux version installed on the SD card that came with the development kit.
It shows Linux version... Brian Compter

07:24 AM Software Development: RE: Databases for the MityDSP

Hi Brian,
Are you using the factory installed version of linux (2.6.xx) and filesystem booting from NAND, or one o... Michael Williamson

09:34 AM Software Development: RE: Remote Debugging Hello DSP

We have debugged the ARM remotely while running a DSPlink application. We have debugged the ARM at the same time as... John Pruitt

07:41 AM Software Development: RE: DSP Link example not working

Hello,
What version of the kernel and filesystem are you using? The one delivered from factory (loading from NOR ... Michael Williamson

07:30 AM FPGA Development: RE: SPI Core on FPGA: Implementation on MityDSP-L138F

Thank you very much Micheal!!
I will try to implement this in these next days and I will give you feedback about it.... Michele Canepa

07:16 AM FPGA Development: RE: SPI Core on FPGA: Implementation on MityDSP-L138F

1. The SPI_Iface is designed to support using our IP on an FPGA that is remoted from the module and connected only th... Michael Williamson

06:02 AM FPGA Development: RE: SPI Core on FPGA: Implementation on MityDSP-L138F

Sorry for the previous question, now I have understood better the core implementation of SPI core, and my previous qu... Michele Canepa

10/30/2012

04:06 PM Software Development: Databases for the MityDSP

Hello,
I'm working on getting a small web server up and running on a L138 and need a database to get things rollin... Brian Compter

11:10 AM Software Development: RE: USB device speed issue when using USB Ethernet gadget driver

Hello François,
Based on your description, it looks like a problem with that particular USB host.
I have not s... Bob Duke

10:00 AM Software Development: USB device speed issue when using USB Ethernet gadget driver

Hi,
I recompiled the kernel and I activated the Ethernet gadget driver. Everything runs fine except one thing: wit... François Tremblay

10/29/2012

01:15 PM Software Development: RE: Remote Debugging Hello DSP

I'm trying to debug the ARM application from CCSv5 running on Linux with GNU toolchain supplied with MDK_08-10-12. Mary Frantz

01:11 PM Software Development: RE: Remote Debugging Hello DSP

Are you trying to debug the DSP application or the ARM application?
There is an initialization sequence that has t... Michael Williamson

12:56 PM Software Development: Remote Debugging Hello DSP

I am having trouble remote debugging the Hello DSP application. I can run it from the target login shell just fine. ... Mary Frantz

01:08 PM Software Development: RE: Permanent increasing of CPU-Clock

I don't know if this is the "best" way, but this works and you don't have to rebuild the kernel.
Create a script f... Mary Frantz

05:48 AM Software Development: RE: Permanent increasing of CPU-Clock

Hi Mike,
I set the CPUFreq governor in the kernel to performance:
CPU Power Management->CPU Frequency scaling... Christian Rückl

10/27/2012

07:13 PM Software Development: RE: Ethernet over usb

Generated a new kernel as per instructions. The meuconfig and make uImage were uneventful - normal. The kernel versio... Krishna Vallabhaneni

01:18 PM Software Development: DSP Link example not working

I were able to follow the DSP Hello World tutorial succesfull until the point when i had to execute the program on t... Christian Rückl

08:16 AM Software Development: RE: Permanent increasing of CPU-Clock

Hi Christian,
By default the kernel always comes up at 300 MHz for the CPU. Most folks create an init script to b... Michael Williamson

06:10 AM Software Development: Permanent increasing of CPU-Clock

I know that, there is already a post in this forum which includes exactly my question below, but no answer on this un... Christian Rückl

10/26/2012

07:55 PM Software Development: RE: Ethernet over usb

Built the uImage, downloaded, and boot.
It does nor complete boot process. It hangs
In the configuration, the onl... Krishna Vallabhaneni

07:23 PM Software Development: RE: Ethernet over usb

Hi Krishna,
I would recommend using an NFS mount or TFTP server for loading up a new kernel and/or filesystem.
... Michael Williamson

05:17 PM Software Development: RE: Ethernet over usb

The kernel version on the board is 2.6.34rc1:
root@mityomapl138:/# uname -r
2.6.34-rc1
The USB gadgets are ava... Krishna Vallabhaneni

10/25/2012

10:09 PM Software Development: RE: Ethernet over usb

That error typically means you are trying to load a module built against a different version of the kernel.
Verify t... Tim Iskander

08:38 PM Software Development: RE: Ethernet over usb

was able to download kernel v3.2. from the mitydsp site.
Was able to generate the usb gadget, when the usb gadget wa... Krishna Vallabhaneni

04:22 PM Software Development: RE: Ethernet over usb

You need to checkout the mitydsp-linux-v3.2 branch. (the master branch is the older branch).... Michael Williamson

03:08 PM Software Development: RE: Ethernet over usb

Downloaded the latest Linux-DaVinci v fce1b66 from Critical Link website. The kernel is n2.26.32, not version 3.2.
H... Krishna Vallabhaneni

03:08 PM Software Development: RE: Ethernet over usb

Downloaded the latest Linux-DaVinci v fce1b66 from Critical Link website. The kernel is n2.26.32, not version 3.2.
H... Krishna Vallabhaneni

12:52 PM Software Development: RE: Ethernet over usb

If you have the latest version of the kernel, then do a ... Michael Williamson

12:48 PM Software Development: RE: Ethernet over usb

Followed ths teps in the above document. The gadget options under usb are missing. attached is a screen shot.
Cannot... Krishna Vallabhaneni

08:37 AM PCB Development: RE: SATA board connector

I was looking for something with the same footprint. We have your demo board that we are using in our fixture and I ... Scott Whitney

08:11 AM PCB Development: RE: SATA board connector

Hi Scott,
Not offhand? Do you require footprint compatible? A quick search on digikey shows there are latching ... Michael Williamson

08:34 AM Software Development: RE: Starter Guide: Cannot build application with eclipse

Sure thing Tim!
I should also point out that on the recent VM images, both toolchains are present. You may be cons... Conor O

10/24/2012

11:17 AM Software Development: RE: Starter Guide: Cannot build application with eclipse

Conor
Thanks for jumping in! Critical Link appreciates users on the forum sharing their knowledge... its what makes ... Tim Iskander

10:54 AM Software Development: RE: Starter Guide: Cannot build application with eclipse

Sorry for the drive by answer - hope Critical Link don't mind (I'm not an employee).
There are a few missing bits ... Conor O

05:14 AM Software Development: Starter Guide: Cannot build application with eclipse

Hi,
Having unpacked the AM-1808 eval kit, and installed the virtual ubuntu mchine in virtualbox, I experience prob... Mads Olav le Maire

10/23/2012

04:40 PM PCB Development: SATA board connector

Hello, We have an application where we are storing data to a SATA drive from our L138. We are in an environment with... Scott Whitney

04:36 PM PCB Development: RE: uPP and Boot signal muxing (Posted on behalf of a Customer)

Angela,
I am using uPP to the arm. What I did was map the pin mux registers in a linux module driver and after boot... Scott Whitney