Activity
From 12/10/2013 to 01/08/2014
01/08/2014
- Hello sir,
In our development phase we are getting MitydspL138F Vision development kit, we are quite unsure with the JTAG interface. It was given in the VDK data sheet that to use XDS510 USB JTAG Emulator(14 pin) for dsp and FPGA JTAG... - PS 11:24 PM Software Development: RE: USB-OTG as a peripheral and a host
- Thank You Jonathan.
I will try them out. - NK 11:06 PM Software Development: RE: "Using TI C64x+ IMGLIB on OMAPL138F"
- Hello Mike,
Thanks for your reply, actually i understood that in your vision_framework you have used C64X IMGLIB libraries from the link provided. But my doubt is whether can we use latest C64X+ IMGLIB (which has enhancements from its... - MW 07:13 AM Software Development: RE: "Using TI C64x+ IMGLIB on OMAPL138F"
- The C64X IMGLIB libraries from TI can be used by simply linking the library provided by TI to your application and calling the routines as needed.
The IMGLIB comes with a users manual and API reference guide from TI.
In the "vision... - Hello sir,
I am working on OMAPL138F for one of my image processing application, kindly let me know if i can use C64x+ IMGLIB functions (as i need to process 16 bit data) for my application development.If not let me know which versio...
01/07/2014
- ŁD 07:18 PM FPGA Development: RE: Broken i_ema_a<8>
- ChipScope confirmed that sth is wrong with i_ema_a<8> pin.
Serial numbers of Mity modules: 121924 (broken), 131576 (working).
Lukasz - ŁD 08:11 AM FPGA Development: RE: Broken i_ema_a<8>
- I'll send them tomorrow.
Lukasz - MW 07:59 AM FPGA Development: RE: Broken i_ema_a<8>
- Yes. Two different mity boards. Can you give me the serial numbers?
-Mike
- ŁD 07:57 AM FPGA Development: RE: Broken i_ema_a<8>
- Hello Mike,
1. What do you mean by two separate modules, two mity boards?
2. Yes, Same kernel, same application, same FPGA image.
3. Two diffrent host boards, but I don't think that host board can be a problem,
because no EMIF signal... - MW 07:18 AM FPGA Development: RE: Broken i_ema_a<8>
- Hello Mr. Dalek,
It might be a problem. Between your "good and bad" boards:
- You are referring to 2 separate modules? Can you provide the serial numbers of the modules?
- You are running the same software image (same kernel, sa... - Hello,
My FPGA has a little problem with modules detection,
Linux driver and controlling program always double-detect them.
So I've tested address lines with this simple VHDL file:
@
o_nmi_n <= '1';
o_int <= (others => '0');
io_... - JC 10:51 AM Software Development: RE: USB-OTG as a peripheral and a host
- The connection setup can be treated like any normal network connection.
You can use ssh to transfer files to and from the board. Or you can setup an nfs mount.
For transferring real-time data, you will likely have to create a cust... - PS 09:15 AM Software Development: RE: USB-OTG as a peripheral and a host
- Hello Jonathan, Mike
Thank you for your replies.
I have been able to find the usb0 device after executing the ifconfig -a command. I carried out the steps as given in the RNDIS wiki page. However, the PC failed to get an IP address...
01/06/2014
- MW 09:06 AM Software Development: RE: USB-OTG as a peripheral and a host
- When you plug the USB in, the kernel should also dump out some information about the connection.
Attaching the results of dmesg might help as well.
-Mike
- JC 08:53 AM Software Development: RE: USB-OTG as a peripheral and a host
- On the L138, if you run ifconfig -a is a usb0 listed?
-Jonathan - PS 08:41 AM Software Development: RE: USB-OTG as a peripheral and a host
- Hello Mike,
As per your suggestion, I have made the changes to the kernel configuration and I have also followed the instructions given in the wiki page.
I have chosen the RNDIS device and compiled it into the kernel. The port is in ...
01/02/2014
- MW 08:14 AM Software Development: RE: Regarding handling UART of MitydspL138 F
- Which UART are you after? Which processor core would you like to use with it?
- Dear sir,
It is given in MitydspL138F VDK datasheet that already UART driver is available in Kernel image. Can you provide more details regarding it as we wanted to use UART in interrupt mode.
with regards,
Naveen K.S. - MW 08:12 AM Software Development: RE: USB-OTG as a peripheral and a host
- Hello,
It looks like you have selected the "gadget zero" device as your peripheral device. This is a USB test device setup.
You need to go back to your kernel configuration deselect the gadget zero device and select the RNDIS devi...
12/31/2013
- Hello,
I am using a MityDSP L138F with a custom board. This board has provision for a USB 1.1 Host and an USB 2 OTG port. I am trying to configure the USB-OTG port as a peripheral and get it detected through a Windows as well as a Linux...
12/20/2013
- DR 11:46 AM Software Development: RE: DSP- EDMA Transmission problem
- I'm not sure why you are dividing by 4 for the number of words to transfer (numwords>>2), but I think that is your problem. ii will be set to 1024 in the example you show, so it should transfer 1024 16-bit words, which is what you are s...
- Hello,
I am having the following problem:
I am invoking an EDMA transfer in my DSP-side application. To do so, I did the following:
12/19/2013
- MW 07:16 AM Software Development: RE: "Regarding video Frame data flow without using Linux OS-Linux frame buffer"
- Hi Naveen,
You can use the UPP port (see the tcDspUpp core in the DSP/core library) or use the VPIF (same pins, see the tcDspVpif class) with the 674x core in DSP/BIOS to have the DSP receive data directly.
We only use / support Li... - Hello sir,
Thank you for replying my previous queries.
We are using MitydspL138F VDK for developing prototype, for one of our image processing application project. The complete Qt framework of the kit is explained fine in the VDK d...
12/16/2013
- MW 09:50 AM Software Development: RE: First base with USB, OMAP-L138F
- And... the capacitance requirements for any USB interface are *very* important. See the USB specification (usb.org) on the capacitance and in-rush current requirements. If you don't get these right, you may have trouble getting the HOS...
- MW 09:48 AM Software Development: RE: First base with USB, OMAP-L138F
- Hello Helmut,
This is really an embedded linux question in general and not just a MityDSP-L138 specific question. But to get the OTG port to look like a mass storage device, you will need to enable the MASS STORAGE device gadget in ... - HF 09:36 AM Software Development: RE: First base with USB, OMAP-L138F
- Thanks. I'm tasking my kernel guy on this. The link for RNDIS advice will be helpful.
HOWEVER, I would prefer it look like a mass storage device, so the host PC can directly access the embedded system's file system.
But when I se...
12/13/2013
- MW 02:07 PM Software Development: RE: Accessing SPI1 bus
- Hi,
To get the spidev device, you need to add an entry for it in your platform baseboard file.
See the recent "industrial I/O board platform file":http://support.criticallink.com/gitweb/?p=linux-davinci.git;a=blob;f=arch/arm/mach-d... - MF 01:40 PM Software Development: RE: Accessing SPI1 bus
- Nope. I don't see that either.
I am going with the low level register access for now. I have SPI driver code that ran on a C6748 and am porting that. You can gain access to the registers using mmap(). - GG 12:21 PM Software Development: RE: Accessing SPI1 bus
- Hi Mary,
My guess would be that since in your baseboard file you set the modalias to "M25PE80" as part of the spi_board_info you will get a /dev/M25PE801.1 entry, or something to that affect, instead of /dev/spidev1.1.
Thanks,
\Greg
12/12/2013
- MC 06:48 AM Software Development: RE: Call to tcDspFpgaGpio::ConfigurePin() makes the Dsp crash
- Thanks Mike!
That was definitely the reason of the crash.
Thank you.
Michele
12/11/2013
- JC 04:01 PM Software Development: RE: First base with USB, OMAP-L138F
- The only things I see different in your circuit besides the removed 5V vbus switch(U101) are:
* Missing USB0_ID pulldown (R110)
* Missing capacitor (C119)
I'm not sure if either of these are required if using the port in periphera... - HF 12:17 PM Software Development: RE: First base with USB, OMAP-L138F
- Jonathan,
Yes, we have a USB A connector coming from USB 0. So this should be akin to connecting a USB A to USB mini cable from the PC to the system. So I *should* be able to get this work. But no, there is not 5V being provided. ... - JC 11:31 AM Software Development: RE: First base with USB, OMAP-L138F
- Mike, Correct me if I'm wrong.
"So maybe the question boils down to this. Can you plug a USB OTG device into a PC, using what kind of cable, and it all work itself out with the PC as host and the device as peripheral? If so, then I ne... - HF 11:03 AM Software Development: RE: First base with USB, OMAP-L138F
- Michael,
Great. First, the P/N on my Critical Link baseboard actually matches the next to last, "80-000268RI-2 B". But if I need to make a revision to the board, I'll consult the last entry as you advised.
(((Please humor me whil... - MW 07:28 AM Software Development: RE: First base with USB, OMAP-L138F
- Schematics for the industrial I/O base board are on this "wiki page":http://support.criticallink.com/redmine/projects/indio/wiki/Industrial_IO_Revision_Information. Use the most recent one.
There are 2 USB ports available. 1 only su... - HF 07:08 AM Software Development: RE: First base with USB, OMAP-L138F
- Jonathan, I'll try those things. FYI one test case with a USB flash drive works for the critical link baseboard, but not our custom baseboard. I need to compare schematics. There may be something different, such as failure to provide ...
- MW 07:12 AM Software Development: RE: Call to tcDspFpgaGpio::ConfigurePin() makes the Dsp crash
- Hi Michele,
Set the CORE_INT_EOF_LEVEL to 1.
Our framework uses 2 levels (2 seperate GPIO interrupt lines between FPGA and OMAP-L138). By default, level 0 is used for cores managed by the ARM and level 1 is used for cores managed ... - MC 05:48 AM Software Development: RE: Call to tcDspFpgaGpio::ConfigurePin() makes the Dsp crash
- This is the crash dump on the serial output:
Unable to handle kernel NULL pointer dereference at virtual address 00000000
pgd = c5368000
[00000000] *pgd=c5312831, *pte=00000000, *ppte=00000000
Internal error: Oops: 80000005 [#1] PR...
12/10/2013
- DG 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 host is available on the board, just connect a USB stick and copy files from it.
Make sure that something like
/dev/mmcbl... - 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.
For the purpose, I have used the call to tcDspFpgaGpio::ConfigurePin() method and subsequently SetISRCallback() method t... - PD 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