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

09/27/2012

04:04 PM PCB Development: RE: MMCSD

Conor,
We have addressed the MMC issues in the datasheet which can be found here by selecting the latest board ver... Alexander Block

06:20 AM PCB Development: RE: MMCSD

Thanks Mike. Once I saw it, I realised the reason why - that stubs on the connector line would warrant concern. Plus ... Conor O

05:36 AM PCB Development: RE: MMCSD

Hi Conor,
You're right. I am trying to figure out what happened here and I see a note in a review that there was ... Michael Williamson

04:24 AM PCB Development: RE: MMCSD

None of the documented MMCSD0 connections on the J700 are wired up. Be nice if that was documented. Conor O

09:47 AM PCB Development: RE: Intermittent boot failure w/ U-boot

I found the problem.
It was not seating well in the SODIMM socket.
That's a long story, but was my fault.
I am cur... Emmett Bradford

09:14 AM PCB Development: RE: Intermittent boot failure w/ U-boot

Here's the SOM sheet, which I believe has everything pertinent to this issue.
U1 is providing a 67ms delay which I'm... Emmett Bradford

09/26/2012

06:18 PM PCB Development: RE: Intermittent boot failure w/ U-boot

What do you have for a reset circuit? How is the reset input driven?
U-Boot shouldn't hang if there is no RS-232... Michael Williamson

06:02 PM PCB Development: Intermittent boot failure w/ U-boot

I have the 1808F on our carrier board now.
It is working and communicating RS232.
About 3/4 of power-on events, i... Emmett Bradford

12:05 PM PCB Development: RE: MMCSD

Hi Critical Link engineers:
If I probe (carefully) pin 5 of an SD card in place, I see the SDIO Clock. My scope sa... Conor O

09/25/2012

11:49 AM PCB Development: RE: MMCSD

Further to this - I have my WL1271 module hooked up to the MityDSP board. However the driver just powers up and down ... Conor O

09/18/2012

05:42 PM Software Development: RE: Requirements to install the fpga_ctrl.ko?

See Table 1 in the "datasheet":http://www.mitydsp.com/images/upload/File/MityDSP-L138F%20Spec.pdf. The pins are tagg... Michael Williamson

12:10 PM Software Development: RE: Requirements to install the fpga_ctrl.ko?

Hi Mike,
I didn't realize that the DVI wouldn't work with the LX-45, luckly we don't need the DVI interface. For r... Matt Menezes

10:18 AM Software Development: RE: Simple GPIO toggle

It works! Thanks for all your help on this Mike. I really appreciate that.
Big Note: It still does not work on Gpi... Conor O

08:56 AM Software Development: RE: Simple GPIO toggle

My board is rev: 80-000268RI-2B, the latest revision.
Ah yes. I see. I really should have spotted it myself as I w... Conor O

07:21 AM Software Development: RE: Simple GPIO toggle

Hi Conor,
Think I found it. If you check the schematics from this "page":http://support.criticallink.com/redmine/... Michael Williamson

05:56 AM Software Development: RE: Simple GPIO toggle

I took the MDK from 2012-03-12 and compiled uBoot and uImage from defaults (using industrialio-defconfig for the kern... Conor O

03:51 AM Software Development: RE: Simple GPIO toggle

I cannot find any particular reason for the pins to do this in the code. I'll recompile the kernel and uboot on the o... Conor O

09/17/2012

07:29 PM Software Development: RE: Requirements to install the fpga_ctrl.ko?

Matt,
Are you sure you have an LX-45 based FPGA? The LX-45 does not bond out 8 pins that the LX-16 does. These i... Michael Williamson

07:09 PM Software Development: RE: Requirements to install the fpga_ctrl.ko?

Hi Matt,
Are you using a wide screen monitor? We've seen some widescreen monitors won't lock up with VGA resoluti... Michael Williamson

06:32 PM Software Development: RE: Requirements to install the fpga_ctrl.ko?

Hi Mike,
Yes, I am using the DVI connector. The FPGA image I am using is one I generated for the x45 FPGA from the... Matt Menezes

05:58 PM Software Development: RE: Requirements to install the fpga_ctrl.ko?

Hi Matt,
If you are trying to use the DVI connector, you need to use the FPGA image that was built to run with the... Michael Williamson

05:42 PM Software Development: RE: Requirements to install the fpga_ctrl.ko?

Ok good news! I got the FPGA bin files needed so that the FPGA ready light comes on. The not so great news is I can't... Matt Menezes

10:11 AM Software Development: RE: Requirements to install the fpga_ctrl.ko?

Hi Mike,
Last week I didn't really have time to work on it, this week I'll know if I need more assistance.
-Matt Matt Menezes

08:46 AM Software Development: RE: Simple GPIO toggle

That's supposed to be GPIO0/6 by the way... Conor O

08:44 AM Software Development: RE: Simple GPIO toggle

Certainly... The PCB number is "120540". I've no boards plugged in at all - just the L138 module and the baseboard. T... Conor O

08:39 AM Software Development: RE: Simple GPIO toggle

Hmmm...
Do you have an expansion board plugged in right now? Can you disconnect it if you do?
It's possible th... Michael Williamson

08:29 AM Software Development: RE: Simple GPIO toggle

GPIO0/15 is the opposite which is rather odd. It starts out as 0, whereas GPIO0/7 starts out as 1:
root@mityomapl1... Conor O

08:21 AM Software Development: RE: Simple GPIO toggle

Thanks Mike,
When I cat from /sys/class/gpio7/value, it reads "1" all the time, no matter what I've previously wri... Conor O

07:23 AM Software Development: RE: Simple GPIO toggle

Hi Conor,
I don't see anything wrong with your approach. You might check the value that the pin is reading back (... Michael Williamson

07:15 AM Software Development: Simple GPIO toggle

I see this has been asked before in various ways so sorry to ask again (I'm not getting it!).
I have pin 19 from J... Conor O

09/16/2012

09:13 PM PCB Development: uPP Synchronization Question (Posted on behalf of a Customer)

Like to seek your help on an uPP related question. I plan to burst out I and Q data from memory using the two uPP ch... Angela Newman

09/15/2012

06:56 AM Software Development: RE: Requirements to install the fpga_ctrl.ko?

Hi Matt,
Did you get through this, do you still need assistance?
-Mike
Michael Williamson

09/14/2012

06:24 PM Software Development: RE: Problem with uPP in DLB

Greg,
Thanks for answer.
By the way, do you have a dummy FPGA load (in .bin format) that output "known fake d... François Tremblay

05:15 PM Software Development: RE: Problem with uPP in DLB

François,
Glad to hear that fixed your problem!
In regards to your follow up question, yes, you will most lik... Gregory Gluszek

09/13/2012

02:43 PM Software Development: RE: Problem with uPP in DLB

Greg,
You was right on and you make my day!
Now, I have another question regarding the cache. I used the uPP in... François Tremblay

02:24 PM Software Development: RE: Problem with uPP in DLB

Hi François,
We have not done any work with running the system in digital loopback mode. The fact that you are ge... Gregory Gluszek

11:54 AM Software Development: Problem with uPP in DLB

I am trying to use uPP in DLP mode with an MityDSP1810F board but my rx buffer is still empty after a "ransaction.
... François Tremblay

09/12/2012

08:26 PM PCB Development: uPP and Boot signal muxing (Posted on behalf of a Customer)

We are using uPP in our design - UPP XDx signals & BOOT function are muxed, what must I do? Angela Newman

12:18 PM PCB Development: Boot Pins? (Posted on behalf of a customer.)

I am actually design an eval board using your L138 module. I am wondering if I need to care about the BOOT pins (muxe... Angela Newman

09/11/2012

04:16 PM PCB Development: Power Off and Boot Time - OMAP Code and FPGA Code (Posted on Behalf of a Customer)

We need to switch power off to the entire card based on USB activity.
Any easy way to do this?
Also how long is... Angela Newman

03:27 PM Software Development: RE: Requirements to install the fpga_ctrl.ko?

It's the same thing. It got branded with two names early on. Profibus really only works with the MityARM-1810, as t... Michael Williamson

02:38 PM Software Development: RE: Requirements to install the fpga_ctrl.ko?

I guess now is a good time to ask, I'm not sure industrial I/O devkit or the PROFIBUS Development Kit, or if there is... Matt Menezes

12:07 PM Software Development: RE: Requirements to install the fpga_ctrl.ko?

Hi Matt,
All of the images on the example site are for an LX16, which (I thought) was the standard size FPGA for m... Michael Williamson

11:56 AM Software Development: RE: Requirements to install the fpga_ctrl.ko?

*Edit*
The board acually says REV A, not sure if it matters. Matt Menezes

11:52 AM Software Development: RE: Requirements to install the fpga_ctrl.ko?

Ok, thanks Mike. I'll be sure to check out the newer branches. I was able to get fpga_ctrl to load using the uimage f... Matt Menezes

07:23 AM Software Development: RE: Requirements to install the fpga_ctrl.ko?

Hi Matt,
There are several branches on our git server. The "master" is somewhat older, which is your 2.6.34-rc1. ... Michael Williamson

02:00 PM PCB Development: RE: Usage of GP0 pins on MityDSP-L138F (Posted on behalf of a Customer)

The "datasheet":http://www.mitydsp.com/images/upload/File/MityDSP-L138F%20Spec.pdf for the MityDSP-L138F contains thi... Michael Williamson

09:27 AM PCB Development: Usage of GP0 pins on MityDSP-L138F (Posted on behalf of a Customer)

My programmers need to know:
What (if anything) is connected to the GPIO pins on port GP0 onboard the MityDSP-L138F ... Angela Newman

09/10/2012

10:05 AM Software Development: RE: Requirements to install the fpga_ctrl.ko?

Hi Mike,
If I understand what I am doing correctly, I am using version 2.6.34-rc1 and I got the kernal from git://... Matt Menezes

09/07/2012

06:40 PM Software Development: RE: Requirements to install the fpga_ctrl.ko?

Hi Matt,
The error messages you are getting are from the kernel module files not being compiled against the same v... Michael Williamson

06:10 PM Software Development: Requirements to install the fpga_ctrl.ko?

Hi,
I've been working with our MityDSP L138F and devolopment board for a few days, today I tried to follow the ins... Matt Menezes

09:49 AM Software Development: RE: kernel build

duh, I guess it helps to execute the instructions you guys post. After tftp'ing the new kernel I would just type boo... Scott Whitney

09/06/2012

05:59 PM Software Development: RE: kernel build

Scott may have found the issue ... he is going to verify and re-post ... Thomas Catalino

05:43 PM Software Development: kernel build

Hello, I am trying to build the kernel to support EXT4 filesystems. I have downloaded the latest configuration MDK_2... Scott Whitney

09/05/2012

03:03 PM Software Development: RE: L138 SD Card Boot & AISgen

I don't have a bunch of time to wander off on this, but you might check the the DEVICE_INIT() routine of the $MDK/sw/... Michael Williamson

02:44 PM Software Development: RE: L138 SD Card Boot & AISgen

Hi Mike,
Thanks for getting back to me so quickly.
We are indeed using a non-FPGA SOM. We have DIP switches on ... Richard Miller-Smith

01:15 PM Software Development: RE: L138 SD Card Boot & AISgen

Hi Richard,
Can you confirm you using a SOM without an FPGA?
FPGA based SOMs do not expose the bootmode / boo... Michael Williamson

12:47 PM Software Development: L138 SD Card Boot & AISgen

Hi,
We're trying to create an SD card that contains both u-boot and our Linux kernel for an L138 module. We've now... Richard Miller-Smith

09/04/2012

04:32 PM FPGA Development: RE: Voltage of bank 3 on MityARM 1810F

Thanks for the quick reply! Emmett Bradford

04:16 PM FPGA Development: RE: Voltage of bank 3 on MityARM 1810F

No that is a typo in the UCF file. The voltage is really 1.8V.
Those lines in the UCF should be as shown below.... Michael Williamson

03:58 PM FPGA Development: RE: Voltage of bank 3 on MityARM 1810F

Are these lines truly connect to the AM1808 as implied in the UCF? Emmett Bradford

03:57 PM FPGA Development: Voltage of bank 3 on MityARM 1810F

I started my FPGA code using fpga/vhdl/MityDSP_L138.ucf
I want to add to the design io_gp8(15 downto 8).
These line... Emmett Bradford