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From 10/20/2011 to 11/18/2011

11/15/2011

11:18 AM Software Development: RE: DSPLink kernel driver
Are you passing the CROSS_COMPILE=arm-angstrom-linux-gnueabi- declaration to the make as well?
-Mike
Michael Williamson
10:11 AM Software Development: RE: DSPLink kernel driver
Hi,
I have just rebuilt the kernel module, and I have just spotted that the build issues a warning:
Building ke...
Andrew Holt
08:33 AM Software Development: RE: DSPLink kernel driver
Hmm...
Are you using the same build of the kernel (e.g., the same .config file) as the one that is running?
Did...
Michael Williamson
08:17 AM Software Development: DSPLink kernel driver
Hi,
I have built dsplinkk.ko using the instructions on the wiki. Modinfo reports:
modinfo dsplinkk.ko
filen...
Andrew Holt

11/11/2011

04:13 AM Software Development: RE: Kernel Hang
Hi,
That did it !
I now have a working kernel, that I have built. Onward now to getting the DSP stuff to work ...
Andrew Holt

11/10/2011

11:23 AM Software Development: RE: L138 UART and DSP
Hi Andrew,
With the MityDSP-L138F, you have two options for UARTs: you can use one of the three UARTS provided on...
Michael Williamson
10:49 AM Software Development: L138 UART and DSP
Hi,
For the project that I am currently engaged in we have a remote ADC device that feeds data down a fibre optic ...
Andrew Holt
10:14 AM Software Development: RE: Kernel Hang
Note the change to the _defconfig file, BTW. (industrialio_defconfig, not mityomapl138_defconfig). Michael Williamson
10:02 AM Software Development: RE: Kernel Hang
Ok,
Sorry guys. I need to update the instructions on that page. The devel branch is no longer maintained, and yo...
Michael Williamson
10:02 AM Software Development: RE: Kernel Hang
Hi,
I built the kernel as per the instructions here: http://support.criticallink.com/redmine/projects/arm9-platfor...
Andrew Holt
09:58 AM Software Development: RE: Kernel Hang
Mike -
Andrew provided this information to me prior to posting on the forum:
I built a kernel, following the ...
Thomas Catalino
09:48 AM Software Development: RE: Kernel Hang
Hi Andrew,
Can you please identify where you got the kernel (is it from support.criticallink.com, arago, the TI PS...
Michael Williamson
09:18 AM Software Development: Kernel Hang
Hi,
I have a MityDSPL138 in the industrial IO board. I have built a new kernel, (2.6.34-rc1) It hangs when I try ...
Andrew Holt

11/04/2011

02:12 PM Software Development: RE: Kernel Hang Anomaly
Mike,
The new boards boot with the 2011-08-01 uImage. I still need to check if this image is backwards compatible...
david kasper

11/03/2011

11:16 AM Software Development: RE: Kernel Hang Anomaly
Hi Dave,
I think you might want to use the uImage located in the release_2011-08-01.run file under MDK_2011-08-01/...
Michael Williamson

11/02/2011

11:32 AM Software Development: RE: Kernel Hang Anomaly
Mike,
Thanks for your fast response. The requested information is listed below.
Dave
>>>>>>>>>>>>>> 1. Comp...
david kasper
07:27 AM Software Development: RE: Kernel Hang Anomaly
Hi Dave,
Can you please post the complete text of the boot attempt, from the start of power up to the hang?
Als...
Michael Williamson

11/01/2011

08:51 PM Software Development: RE: Kernel Hang Anomaly
Hi David -
I'll let the technical team address the hang. But just wanted to let you know that modules are shipped...
Thomas Catalino
07:40 PM Software Development: Kernel Hang Anomaly
We recently received MityDSP boards containing u-boot but don't have Linux installed. Note that MityDSP product conf... david kasper

10/28/2011

04:59 PM Software Development: RE: Is there an Embedded Linux USB-Serial device driver in the kernel?
The Serial Gadget device is exactly what I am trying to do. thanks for the link, I will post how this goes.
Mike
Mike Costa
10:57 AM PCB Development: RE: Adding a SPI peripheral through J700 on industrialIO board
My take on that is the same. I'll need to check as to why those signals were brought to both connectors. I'll doubl... Michael Williamson
10:45 AM PCB Development: RE: Adding a SPI peripheral through J700 on industrialIO board
OK great, thanks. I will start another thread if I have any problems configuring the software. The schematic I have ... Mike Costa
10:05 AM PCB Development: RE: Adding a SPI peripheral through J700 on industrialIO board
The GP0[] nets on J700 should also be usable for chip selects.
-Mike
Michael Williamson
10:04 AM PCB Development: RE: Adding a SPI peripheral through J700 on industrialIO board
Hi Mike,
The SPI drivers support using a regular OMAP GPIO for a chip select to gang up multiple devices on a SPI ...
Michael Williamson
09:46 AM PCB Development: Adding a SPI peripheral through J700 on industrialIO board
Hi,
We are designing a underboard that will have additional peripherals attached to the industrialio board throug...
Mike Costa

10/27/2011

05:40 PM Software Development: RE: L138F UART2 in Linux
Just as an FYI (to possibly save you time in the future) linux-davinci/arch/arm/mach-davinci/da850.c has a number of ... Gregory Gluszek
05:25 PM Software Development: RE: L138F UART2 in Linux
Sorry scratch that last question.. I will do it in my C++ app settings.

Mike Costa
05:22 PM Software Development: RE: L138F UART2 in Linux
Dominic & Mike,
Thanks for all your help BTW.
Where can I configure the baud rates if the TAG structures are not ...
Mike Costa
04:55 PM Software Development: RE: L138F UART2 in Linux
ah that solves the mystery of no output .o files. I finally got the UART2 working using the baseboard-industrialio.c... Mike Costa
04:20 PM Software Development: RE: L138F UART2 in Linux
Mike,
If you build menuconfig (make menuconfig) and navigate -> System Type -> TI DaVinci Implementations -> Selec...
Dominic Giambo
04:08 PM Software Development: RE: L138F UART2 in Linux
Darn, I confused myself in hopes that I found a solution!
so how do I know which baseboard-xxx.c file is being com...
Mike Costa
03:50 PM Software Development: RE: L138F UART2 in Linux
Hmmm...
Those aren't "default values", those are the values that the register will be programmed to if you add DA8...
Michael Williamson
03:39 PM Software Development: RE: L138F UART2 in Linux
I found these lines in da850.c
according to this line the default value for those pins is 2, which means they are ...
Mike Costa
01:36 PM Software Development: RE: L138F UART2 in Linux
Hi Mike,
I looked into baseboard-hrsc.c and DA850_UART2_TXD is listed in the array. wouldn't this mean the pin-mu...
Mike Costa
07:33 AM Software Development: RE: L138F UART2 in Linux
Hi Mike,
You don't want to change the name of the MACHINE_START macro name. Put it back, otherwise the unit will ...
Michael Williamson
08:47 AM Software Development: RE: Is there an Embedded Linux USB-Serial device driver in the kernel?
If you are interested in making the USB 2.0 port look like a virtual serial port, here is more information about the ... Michael Williamson
07:16 AM Software Development: RE: Is there an Embedded Linux USB-Serial device driver in the kernel?
If you have the USB1.1 port hooked up (it is on the Industrial I/O profibus card, it's the a USB-A host connector), y... Michael Williamson

10/26/2011

05:32 PM Software Development: RE: L138F UART2 in Linux
Hi Mike,
I tried changing the enable field for UART2 in board-mityomapl138.c but I don't think there is any effect...
Mike Costa
03:27 PM Software Development: RE: L138F UART2 in Linux
Hi Mike,
I see an option in board-mityomapl138.c to enable UART2 and will give that a shot.
It seems that ther...
Mike Costa
03:24 PM PCB Development: RE: PROFIBUS Dev Kit RS485 on J504
OK, thanks for confirming Tom Mike Costa
10:24 AM PCB Development: RE: PROFIBUS Dev Kit RS485 on J504
Hi Mike -
You are correct, thank you for pointing this out. The table in the data sheet is from an older revision...
Thomas Catalino

10/25/2011

07:32 PM Software Development: RE: L138F UART2 in Linux
Hi Mike,
In the kernel in the arch/arm/mach-davinci area, you will find a bunch of calls for setting up the multip...
Michael Williamson
07:27 PM Software Development: L138F UART2 in Linux
Hi,
it looks like UART2 is enabled in the default linux kernel. When i do
>dmesg | grep tty
3 uarts are sho...
Mike Costa
05:39 PM PCB Development: RE: PROFIBUS Dev Kit RS485 on J504
One more question on this...
I'm confused on the pinout of J504. the schematic that you guys sent of the dev boar...
Mike Costa
04:23 PM PCB Development: RE: PROFIBUS Dev Kit RS485 on J504
Got it, thanks Tom Mike Costa
02:10 PM PCB Development: RE: PROFIBUS Dev Kit RS485 on J504
Hi Mike -
They are TTL and meant to ribbon cable to a small driver board that can be panel mounted to minimize st...
Thomas Catalino
02:01 PM PCB Development: PROFIBUS Dev Kit RS485 on J504
Hi,
The RS485 pins on J504 of the PROFIBUS Dev Kit seem to be directly connected to UART2 of the mitydspL138F whic...
Mike Costa
04:33 PM Software Development: Is there an Embedded Linux USB-Serial device driver in the kernel?
I have a L138F with profibus board and am looking into options for communicating with a PC. I'd like to use USB if p... Mike Costa
03:22 PM PCB Development: RE: mitydsp-L138F datasheet typo? MII_RXD or MII_DXD?
If you are not using all the UPP pins, you might be able to use RMII (routed through the FPGA) to free up these pins.... Michael Williamson
01:57 PM PCB Development: RE: mitydsp-L138F datasheet typo? MII_RXD or MII_DXD?
Hi Mike, thanks for the verify, and pointing out that those pins are used for the Ethernet control. I do need ether... Mike Costa
12:39 PM PCB Development: RE: mitydsp-L138F datasheet typo? MII_RXD or MII_DXD?
Hi Mike,
You are correct, there is a typo in the datasheet. We'll update the sheet, thanks for pointing it out. ...
Michael Williamson
11:04 AM PCB Development: mitydsp-L138F datasheet typo? MII_RXD or MII_DXD?
Hi, I am confused with the terminology used in the mitydsp-l138f datasheet (july 12 2011)
Pins 79, 81, & 83 are la...
Mike Costa
12:47 PM FPGA Development: RE: FPGA part number
XC6SLX45-2CSG324C
-Mike
Michael Williamson
12:33 PM PCB Development: RE: uPP Test Points
Unfortunately, no. There are no easily available vias for these signals. Michael Williamson
12:31 PM Software Development: RE: jffs2 check
Hi Thomas,
Sorry for the delay. If you wanted to verify the NAND write (and you have enough memory), I believe yo...
Michael Williamson
09:07 AM Software Development: RE: uPP receive problem
Mike,
Thanks for looking at the snippets of code I sent you. I have set the enable bit in my driver. I didn't se...
Scott Whitney
08:23 AM Software Development: RE: uPP receive problem
Hi Scott,
Sorry for the delay. You are using the receive channel *much* differently than we typically do (we use ...
Michael Williamson

10/24/2011

04:06 PM Software Development: RE: RS-485 failure to operate
Hi Mark,
My initial inclination would be to make sure that the pinmux is set correctly. Section 11.5.10 in the OMA...
Gregory Gluszek
03:19 PM Software Development: RS-485 failure to operate
Using a MityDSP L178 with industrial IO board 80-000268RI-2
Trying to use RS-485 via J504 - there are no signs of l...
Mark Lyon

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
 

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