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From 09/23/2011 to 10/22/2011

10/21/2011

02:34 PM Software Development: RE: uPP receive problem
Mike,
I will attach the upp control settings and dma descriptor settings. I know in the end I want to use the ena...
Scott Whitney

10/20/2011

05:47 PM Software Development: RE: uPP receive problem
On the MityDSP-L138F, the voltage domain for the UPP (and for the FPGA bank connected to the UPP) is 1.8 Volts.
I'...
Michael Williamson
04:56 PM Software Development: RE: uPP receive problem
Tom,
I understand the handshaking can be a problem. I have the uPP running with the highest divisor now at ~4.68 ...
Scott Whitney
01:23 PM Software Development: RE: uPP receive problem
Hi Scott -
Thanks for posting.
I talked to the guys about this problem that you're having. It sounds like any...
Thomas Catalino
11:48 AM Software Development: uPP receive problem
Hello,
I am writing a linux uPP driver for bi-directional comms between the fpga and OMAP. From what I can tell t...
Scott Whitney
03:11 PM Software Development: RE: Using dspQDMA library on OMAP-L138
Great! Thanks very much guys. This should get me on the right track. Rich Bagdazian
12:41 PM Software Development: RE: Using dspQDMA library on OMAP-L138
Mike and I apparently were typing simultaneously! Good thing we both came up with the same answer!
Dave
David Rice
12:40 PM Software Development: RE: Using dspQDMA library on OMAP-L138
Typically, we kick off the DMA from an ISR and pend for it in a task. Pending from within an ISR is not allowed. You... David Rice
12:35 PM Software Development: RE: Using dspQDMA library on OMAP-L138
If you are calling SEM_pend() from within an ISR, you need to use a zero timeout. You could do a ... Michael Williamson
12:16 PM Software Development: RE: Using dspQDMA library on OMAP-L138
If I did want to be sure that the operation had completed before moving on, is there an alternative approach. In this... Rich Bagdazian
12:15 PM Software Development: RE: Using dspQDMA library on OMAP-L138
Hi Mike,
I will check on the initialization value. I was calling the SEM_pend function immediately after requesting ...
Rich Bagdazian

10/19/2011

12:38 PM Software Development: RE: Using dspQDMA library on OMAP-L138
Hi Richard,
How are you creating the Semaphore? Zero initialization value?
Is it possible your routine that is...
Michael Williamson
12:28 PM Software Development: Using dspQDMA library on OMAP-L138
I am using the dspQDMA class in a project on the mity-omap processor. I was able to successfully load all of the comp... Rich Bagdazian

10/12/2011

04:01 PM Software Development: RE: HelloWorldDSP.out syntax error
Hi Peter,
Thank you for your feedback. We'll try to update the Hello World page and address your comments. The c...
Michael Williamson
03:19 PM Software Development: Reflections after building DSP "Hello, world!"
I managed to compile the DSP Hello World...*finally*.
(Using Version: 4.2.4.00033 of CCS on WinXP)
I noticed a ...
Peter Simpson
01:29 PM FPGA Development: uPP routing
Hello,
We are trying to debug a uPP application and routed the chan A and Chan B signals through the fpga to conne...
Scott Whitney

10/10/2011

03:36 PM Software Development: RE: HelloWorldDSP.out syntax error
those binaries were a great sanity check for me. you guys might consider posting them to the quick start page.
Mike
Mike Costa

10/06/2011

04:04 PM Software Development: jffs2 check
Hi,
After transferring the jffs2 filesystem via uBoot, using the "nand write.jffs2 C2000000 0 <>" command, is there...
Thomas Nagel

10/03/2011

03:48 PM Software Development: RE: uPP digital loopback
Greg,
I'm using the default ASYNCH3 clock which is PLL_SYSCLK1 I think. This should be divided down automatically...
Scott Whitney
01:49 PM Software Development: RE: uPP digital loopback
Hi Scott,
As far as I know we have not seen any issue like what you're describing when using a uPP clock driven by...
Gregory Gluszek
09:34 AM Software Development: uPP digital loopback
Hello,
I have a linux driver module to test the uPP in digital loopback. I saw some odd behavior in regards to th...
Scott Whitney

09/30/2011

06:30 AM Software Development: RE: Additional serial port on the MityDSP Profibus dev-kit
Just thought I'd add a note in case some one else stumbles upon this thread:
Ended up using a Prolific usb-to-seri...
Mattias Ekstrom

09/29/2011

04:36 PM PCB Development: uPP Test Points
Are there test points available on the MityDSP-L138F for the following uPP signals?
'UPP_CHA_ENABLE' = L138 Pin#U1...
Brian Tomaselli
10:40 AM Software Development: RE: upp clock
Greg,
Thanks for the reply. My question was more of how the clocks are setup on the board as a default. I suspec...
Scott Whitney
08:30 AM Software Development: RE: Additional serial port on the MityDSP Profibus dev-kit
No, I don't think ssh would work. It has to be something I could open and interact with just like a com port from my ... Mattias Ekstrom
08:18 AM Software Development: RE: Additional serial port on the MityDSP Profibus dev-kit
(re: comm over ethernet)
Is ssh acceptable? "ssh root@mitydspaddr"
-Mike
Michael Williamson
08:17 AM Software Development: RE: Additional serial port on the MityDSP Profibus dev-kit
The default kernel and root filesystem may "just work". If you plug in the device you should see some messages about... Michael Williamson
08:13 AM Software Development: RE: Additional serial port on the MityDSP Profibus dev-kit
Hmm, I don't really need a physical port. Is there any com over ethernet software availible for these systems?
/ M...
Mattias Ekstrom
08:10 AM Software Development: RE: Additional serial port on the MityDSP Profibus dev-kit
Thanks for the speedy reply!
One extra port should suffice. I'll order one of the keyspan adapters right away.
...
Mattias Ekstrom
07:49 AM Software Development: RE: Additional serial port on the MityDSP Profibus dev-kit
Hi Mattias,
I think that your best (or easiest) bet would be to use a usb-to-serial adapter on the Host (USB1) por...
Michael Williamson
06:06 AM Software Development: Additional serial port on the MityDSP Profibus dev-kit
Hi, I'm wondering what the best way to get an additional serial port is? Is there support for usb-to-serial adapters?... Mattias Ekstrom

09/28/2011

04:35 PM Software Development: RE: upp clock
Hi Scott,
The fastest you will be able to get the uPP transmit clock to run with your setup is 75 MHz.
From th...
Gregory Gluszek

09/27/2011

05:04 PM Software Development: upp clock
I have a userspace upp driver that I am trying to test in loopback mode. I am trying to loopback 1 line of a memory ... Scott Whitney

09/23/2011

03:06 PM FPGA Development: FPGA part number
We are looking at getting the L138-FI-225-RC that comes with a Spartan 6SLX45. What is the complete FPGA part number ... Brian Tomaselli
 

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