Mity CPU Platforms

10/16/2010

07:31 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: LCD/Display questions

Great. Sounds like for our purposes we probably don't need these commands, since we're connecting the LCD through the... William Fisher

10:49 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: LCD/Display questions

The "TFP410":http://focus.ti.com/docs/prod/folders/print/tfp410.html DVI interface chip is located at address 0x38 on... Michael Williamson

10/15/2010

09:25 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: LCD/Display questions

In the wiki entry on setting up the LCD, the i2cset command was used to set a couple addresses in chip 0x38. Did that... Dennis Volper

02:47 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Boot failure

That worked. We are up and running.
A little search of the kernel source tree shows that in arch/arm/configs most of... Dennis Volper

01:52 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Boot failure

Hi Dennis,
It looks like the bootargs environment variable in u-Boot has become corrupted.
At the u-Boot prompt... Michael Williamson

01:39 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Boot failure

Script started on Fri 15 Oct 2010 10:26:41 AM PDT
cianna@ubuntudv:~$ kermit
C-Kermit 8.0.211, 10 Apr 2004, for Linu... Dennis Volper

07:35 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Boot failure

Hi Dennis,
Please send me (or post) a dump of your terminal with the following:
# Stop in u-Boot and do a "prin... Michael Williamson

10/14/2010

10:04 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: Boot failure

I've inherited a board that got bricked. I'm having boot problems. The kernel loads, but gets an error: it can't moun... Dennis Volper

03:30 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: LCD/Display questions

Thanks. This is the first of the steps we needed to understand.
I don't think we'll need help with the hardware it... William Fisher

03:06 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: LCD/Display questions

Hi all,
If you have designed your own hardware using a new LCD, I'm afraid you're going to be on your own to get i... Michael Williamson

02:49 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: LCD/Display questions

We're in need of some information on this item because our primary assignment now is to implement our LCD functionali... William Fisher

10/12/2010

07:08 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: LCD/Display questions

Related Notes: just so you know, we have an FPGA binary which supports our new LCD panel, and it maps the memory for ... William Fisher

06:39 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: LCD/Display questions

The wiki lists vga_640x480 and Sharp_LQ035Q7DH06 as Displays that are known. The new version of the board we have bee... Dennis Volper

10/01/2010

11:00 AM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: TLK100 Ethernet

Mike,
FYI It was the bias resistor. There was a type in the BOM and a 49.9K was installed instead of a 4.99K. ... John Mladenik

09/27/2010

04:24 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: TLK100 Ethernet

Mike
Just to be sure can you tell me how you pinned out the PCB footprint. Does it match this picture looking fr... John Mladenik

03:57 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: TLK100 Ethernet

Mike,
After talking this out with our software guy we are convinced its as your said,one of two things. The con... John Mladenik

03:49 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: TLK100 Ethernet

Power up the unit in your board. Stop at u_boot and type:... Michael Williamson

02:05 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: TLK100 Ethernet

The JTAG R's and connector are not installed.
I have the ethernet connected to my home switch.
I set the ... John Mladenik

01:55 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: TLK100 Ethernet

Hi John,
It looks like the OMAP MII interface is not making it to your network. The 169.254.X.X network means tha... Michael Williamson

01:12 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: TLK100 Ethernet

Here is the ip addrs when plugged into the Critial Link and IT WORKS
Critical Link dev IT WORKS
root@mityomapl138:~... John Mladenik

12:26 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: TLK100 Ethernet

I didn't write them down I just typed them when he told me to. This was in u-boot. Once I typed them in I could pi... John Mladenik

07:31 AM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: TLK100 Ethernet

What were the software commands? If they involved setting the peripheral configuration in u-Boot, then they only nee... Michael Williamson

09/26/2010

11:13 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: TLK100 Ethernet

Does the Ethernet on the MityDSP need to be initialized for each new TLK100 it gets plugged into? This one was init... John Mladenik

09/25/2010

02:27 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: Clean Shutdown

I think the most important thing is to mount the root filesystem and any filesystem you have your executable on with ... Michael Williamson

09/24/2010

08:34 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: TLK100 Ethernet

hey would it be possible that we talk on the phone?
858-254-0008
John Mladenik

08:20 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: TLK100 Ethernet

That message is OK. You can set up ethernet to use MII or RMII (but not both, and you're using MII).
It looks lik... Michael Williamson

08:06 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: TLK100 Ethernet

I saw this among the test
EMAC: MII PHY configured, RMII PHY will not be functional
I attached the whole text John Mladenik

07:50 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: TLK100 Ethernet

Can you dump out the text from the boot sequence? Does the u-Boot locate the PHY (via the MDIO scan)?
-Mike
Michael Williamson

07:42 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: TLK100 Ethernet

OK I made all the changes and it still does not work. I now think there are only two difference between out circuits... John Mladenik

03:39 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: Clean Shutdown

How do you recommend we handle shutdown of our embedded device in order to ensure the consistency of the Linux file s... William Fisher

12:02 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: LCD/Display questions

We were able to get the LCD going with no problem, BTW. We'll be using it for our demo next week.
Thanks for the h... William Fisher

09/23/2010

04:35 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: TLK100 Ethernet

yes. you should add a pull-up. Michael Williamson

04:16 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: TLK100 Ethernet

Mike,
The green on the component means I used a different value cap or resistor. C216 is there but I used a 1uF c... John Mladenik

03:46 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: TLK100 Ethernet

Hi John,
I think you need to tie the RESET line on the phy to the MII_RESET_N signal. The SYS_RESET_N does not ge... Michael Williamson

03:23 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: RE: TLK100 Ethernet

More information for you.
Attached is a comparison between the Critical link schematics and ours schematics. View... John Mladenik

01:42 PM MityDSP-L138 (ARM9 Based Platforms) FPGA Development: TLK100 Ethernet

I know this is outside of your support area but I thought I would ask this in case you might have an idea of what to ... John Mladenik

09/22/2010

02:28 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: LCD/Display questions

You'll need a different FPGA image. You also need to load an additional module (for the touchscreen controller on th... Michael Williamson

02:26 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: LCD/Display questions

Yup. That did it.
For some reason, I had copied the instructions for the Rev. C board instead of the ones above.
... William Fisher

02:05 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: LCD/Display questions

Ah. OK. You punched in the i2c commands for the Rev C board. You have 0x3f programmed into position 0x08.
Please... Michael Williamson

01:53 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: LCD/Display questions

I added a simple test pattern generator to the wiki [[LCD_configuration]]. It draws a white box around the border of ... Tim Iskander

01:50 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: LCD/Display questions

Done. Here's what I see:
0 1 2 3 4 5 6 7 8 9 a b c d e f 0123456789abcdef
00: 4c 01 10 04 ... William Fisher

08:17 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: LCD/Display questions

After you are up and running, could you please run a... Michael Williamson

09/21/2010

04:16 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: LCD/Display questions

Definitely not a Rev C board, so it must be a B (I think we have an A here as well, but this isn't it).
Yes, actua... William Fisher

03:22 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: LCD/Display questions

Can you please confirm the revision of your board (B, or C)?
Before you write to the /dev/fb0 device, do you see a... Michael Williamson

03:13 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: LCD/Display questions

Got it working. A few oddities, but I'm now able to at least talk to the frame buffer.
The screen is all blue and ... William Fisher

10:07 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: LCD/Display questions

William
If you are seeing blue vertical stripes (every other pixel) then the frame buffer is working..
try the foll... Tim Iskander

09/20/2010

10:53 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: LCD/Display questions

OK -- we're definitely making progress here. I now see a raster on the DVI-based monitor. It's just vertical blue str... William Fisher

09:37 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: LCD/Display questions

Got it. I'll check this out right now and let you know what happens. William Fisher

08:08 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: LCD/Display questions

That's the right image. All the files show up at the bottom of the wiki.
I've updated the wiki with more instru... Michael Williamson

02:23 PM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: LCD/Display questions

I downloaded the file "IndustrialIO_dvi_revA-B.bin" and used it to program the FPGA (in Linux, using the instructions... William Fisher

11:56 AM MityDSP-L138 (ARM9 Based Platforms) Software Development: RE: LCD/Display questions

We'll take a look at this setup today and let you know what happens.
The next thing we'll want to know is what com... William Fisher