USB to SPI

Hi
Can we read USB device using Labview 8. Our application can be better explain with the help of attached block diagram. Please find the attached Document. In this application , we are using a sensor having SPI interface.Then with the help of National Instruments USB to SPI converter we are interfacing it with the PC.
My question is can we read the data from a sensor which is connected to PC using NI USB to SPI converter.
Please reply as soon as possible since it is very urgent.
Thanks & Regards
R
Attachments:
Document.doc ‏19 KB

Hi
In one of our application I have to read the internal register values of the sensors. I am using NI 8451 card.
Pin Details of the sensors are-
SDIO – Serial Port Data Input & Output
XY_LED – Led Control
NRESET – Reset Pin (active low input)
NCS – Chip select (active low input)
VDD5 – Supply voltage
GND – Ground
REG0- Regulator Output
SCLK – Serial Clock Input
My question is NI 8451 is having separate pins for SDO & SDI But sensor is having one pin for SDIO. How to connect them ,I have to read the register values & some registers are read/writable.??
Please reply as soon as possible, it is very urgent
Regards
R

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elpiar wrote:
It's working!
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Attachments:
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Attachments:
MAX11008 DS.pdf ‏646 KB
code2.txt ‏9 KB
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Bonjour Jerome,
Malheureusement, cette carte ne peut pas être utilisé en mode esclave.
Concernant l'utilisation des signaux MISO et MOSI je pense que vous possédez déjà la doc de la carte. Sinon la voici :
http://www.ni.com/pdf/manuals/371709b.pdf
Par ailleurs, je vous invite à consulter cette article qui pourrait peut-être vous aider :
http://zone.ni.com/devzone/cda/tut/p/id/8359
N'hésitez pas à nous répondre si vous avez encore des questions en précisant quel logiciel vous utilisez (LabVIEW...) et avec quel microcontroleur vous souhaitez dialoguer.
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845x CS Lines Set_modified.vi ‏28 KB

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Hi everyone. Im using the SPI communication with 8451 and Im having the same situation., since the serial flash memory I need to program is big enough, t3 (SCLK Setup time) and other "dead time" which I think is the time when buffer on the 8451 needs to be re-filled those are killing my expectation on the final results. I can't see a way to decrease t3 (~10uSec) and in the same way Im seeing something like buffering up to 100~110 bytes then, a ~1.5mSec delay appears on the signal waveforms. Did somebody have good results trying to avoid this?
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Attachments:
t3 - SCLK setup time.jpg ‏156 KB
Data byte Transfer_109.jpg ‏137 KB

USB to SPI

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