topic Re: Communicating with Blackfin in LabVIEW Embedded

Communicating with Blackfin

Redseal94 — Mon, 08 Jun 2009 13:30:46 GMT

Hi all,

Not sure if this is the right forum, but maybe someone can offer suggestions. We want to communicate with a Blackfin processor through USB and we do NOT have the embedded module. Can you offer places to start such as tutorials, manuals, etc.? Or maybe even LabVIEW, LabWindows, or C code? Thanks.

Re: Communicating with Blackfin

Claire_Reid — Tue, 09 Jun 2009 19:12:51 GMT

Hey Redseal94,

Are you wanting to program/download code to the flash of the Blackfin or communicate with code that is already running on the Blackfin?

Re: Communicating with Blackfin

Redseal94 — Tue, 09 Jun 2009 19:20:08 GMT

Not sure if this answers your question, but I want to do tasks such as:

- Switch the output of a line from high to low. I can do this using VDSP++ using something like

adi_flag_Set(CS_DA);

- Control the SPI lines. For instance, we have an AD5628 12 bit DAC interfaced to the SPI_MOSI line. How could I output the max analog voltage to say Channel F?

Re: Communicating with Blackfin

Claire_Reid — Tue, 09 Jun 2009 23:13:19 GMT

Hi Redseal,

In order to do this from LabVIEW you will need to get the LabVIEW Embedded Module. Please let me know if you would like me to have someone contact you about getting this Module.

Re: Communicating with Blackfin

Redseal94 — Wed, 10 Jun 2009 12:46:52 GMT

I did download the trial version to see how "easy" it is supposed to make it. But it is not that easy, still no communication 🙂

Re: Communicating with Blackfin

Redseal94 — Wed, 10 Jun 2009 14:48:52 GMT

I have also tried the examples in the embedded software but I always get compile errors such as LVGenIncludes, etc.

Re: Communicating with Blackfin

Claire_Reid — Wed, 10 Jun 2009 16:10:35 GMT

Hey,

Check out the LabVIEW Embedded Module for Blackfin Processors 2.5 Help. This might be a good starting point.

Also, if you want to let me know the exact errors you are getting I can look into why they might be happening.

Re: Communicating with Blackfin

Redseal94 — Wed, 10 Jun 2009 20:32:21 GMT

Here is the error I get when I try to use any USB open.

*** compiler output ***

C:\WINDOWS>"C:\Program Files\Analog Devices\VisualDSP 5.0\ccblkfn.exe" -g -c -proc ADSP-BF527 -threads -labview -implicit-pointers -I. @.\prjHeaders.lst -DCHeadless -D__vdk -D__USE_FFT_REL45__ -Wsuppress 0001,1661 "Documents\LabVIEW Data\Programs\USB\USB 060909\BF527\VDK_Application\BF_USB_Bulk_Open.c" @.\prjOptions.lst
'\\aries\users\rdresher\My Documents\LabVIEW Data\Programs\USB\USB 060909\BF527\VDK_Application'
CMD.EXE was started with the above path as the current directory.
UNC paths are not supported. Defaulting to Windows directory.
problem opening file `.\prjHeaders.lst'
problem opening file `.\prjOptions.lst'
"Documents\LabVIEW Data\Programs\USB\USB 060909\BF527\VDK_Application\BF_USB_Bulk_Open.c", line 18: cc0005: fatal error:
could not open source file "LVCGenIncludes.h"
#include "LVCGenIncludes.h"
^

1 catastrophic error detected in the compilation of "Documents\LabVIEW Data\Programs\USB\USB 060909\BF527\VDK_Application\BF_USB_Bulk_Open.c".
Compilation terminated.
cc3089: fatal error: Compilation failed

*** linker output ***

Message Edited by Redseal94 on 06-10-2009 03:32 PM

Re: Communicating with Blackfin

Claire_Reid — Wed, 10 Jun 2009 20:59:53 GMT

Hey,

What hardware do you have? Do you have the BF 527 EZ Kit? If so, please try running one of the BF 527 example vis.

We do have some USB VIs for BlackFin, but I am not sure if they are supported for the BF527. We are currently investigating this.

Re: Communicating with Blackfin

Redseal94 — Thu, 11 Jun 2009 02:01:18 GMT

Yes I do have a BF527. Are you saying that USB communication with it is not possible at this time using LabVIEW?

Re: Communicating with Blackfin

Redseal94 — Thu, 11 Jun 2009 12:56:49 GMT

Also, I did try running a 527 example, but I get a different error.

Failed to locate VisualDSP++ files need to continue. Please make sure that VisualDSP++ is properly installed and configured in the target options dialog.

I am pretty sure it is installed OK because I have been using without trouble. I am not sure where the target options dialog is though to check.

I tried running the BF527 UI.VI.

Re: Communicating with Blackfin

Redseal94 — Thu, 11 Jun 2009 13:10:42 GMT

And I did find the configure target, which seems to be configured correctly.

Re: Communicating with Blackfin

Redseal94 — Thu, 11 Jun 2009 13:21:16 GMT

I have also tried working through the getting started tutorial and I receive the previous include error again once I get to the build Blackfin application part.

Re: Communicating with Blackfin

Claire_Reid — Thu, 11 Jun 2009 22:35:08 GMT

Hey,

1. We need to make sure the VDSP is installed... it is possible you might have only installed the module.

2. Even if it is installed, please re-install it.

3. Also, when you open the DF527 example, are you building a VDK Application and including the VI with this?

Re: Communicating with Blackfin

Redseal94 — Fri, 12 Jun 2009 12:54:51 GMT

VDSP is definetely installed. I am writing code with it and communicating with my device through it.

Same thing after re-install.

I am doing exactly what the tutorial has you do, which includes buidling a VDK application.

Re: Communicating with Blackfin

Gmg — Mon, 15 Jun 2009 20:34:20 GMT

It seems like there is an issue with the fact that you are/were using your own version of VDSP...

Are you installing the VDSP using the LabVIEW Blackfin installer or using your own installer? I imagine the installer could place VDSP to a specific location or perform configuration that you may not be doing.

Re: Communicating with Blackfin

freitas — Tue, 23 Jun 2009 17:35:49 GMT

I had the same problem.. I installed everything on another computer and it was working ok..

I assume it's a driver problem, but when i tryed to fix it (drivers), I simply got a bluescreen on windows starting.. (damm vista).. so, I'll install XP Pro and stick with it until my work is done.. :S

try the same thing, on another computer!

best regards