• The NI USB-6501 is a digital IO module for USB from National Instruments. Unfortunately, their driver for Linux is excessively large (> 60M!) and didn't work. So we decided to analyze the USB protocol and write our own driver.
• 24-Channel, 8.5 mA, Digital I/O Device—The USB-6501 is a portable, bus-powered USB digital I/O device, providing reliable data acquisition and control at a low price. The device provides overvoltage protection its digital I/O lines and a 32-bit counter.

SPECIFICATIONS USB-6501 24-Channel, 8.5 mA, Digital I/O Device Definitions Warranted specifications describe the performance of a model under stated operating. Oct 21, 2018  Before you ni usb 9162, you must install your application development environment and NI-DAQmx driver software. Important product and driver updates Calibration reminders to keep your hardware in compliance Notifications about warranty expiration Simplified asset management for.

Using National Instruments USB-6501 with Linux The is a Full-Speed USB 2.0 (12 Mbit/s) device that provides 24 digital I/O lines channels and one 32-bit counter. National Instruments provides a driver for Linux but it is huge (over 80 MB!) and buggy and, worst of all, it's not open-source! There is neither an open-source driver in the official Linux kernel.

But things are going to change! Support is planned to be integrated in release 3.17. In the meantime, if you want to use this device with Linux, you can patch the kernel sources and have fun. In this document I'm going to show you how to do this.

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Sep 25, 2015 - NI-DAQmx Base, version 15.0 for Mac OS X installs driver and ADE support for Multifunction Data. Product Line: Multifunction DAQ.

Install NI USB-6501 kernel module For this step you need to download kernel sources and run your own kernel. I presume you already did this and have kernel sources at hand.

I'm not going to explain it, there are a lot of documentation on the web. Next, you have to download this and apply it: # cd /path/to/your/kernel/sources # cp /path/to/0001-Add-support-for-NI-USB-6501.patch. # patch -p1 Data acquisition support (comedi).

Comedi USB drivers NI USB-6501 support Compile/install the kernel and modules: # make && make modules # make modulesinstall If everything went fine, you should have a module called niusb6501.ko in this directory: /lib/modules/$(uname -r)/kernel/drivers/staging/comedi/drivers Check that the module loads correctly: # modprobe niusb6501 If you don't get any errors your driver is ready to be used. Install comedilib Download comedilib from Extract, configure and compile: $ tar xzf comedilib-0.10.2.tar.gz $ cd comedilib-0.10.2 $./configure $ make $ sudo make install If you get configure or compile errors, make sure you have the following packages installed in your system:. flex. bison. byacc Digital I/O testing Subdevice 0 is Digital I/O which is made up of 24 channels (three 8-bit ports) When you first connect the device, all channels are set as input (default settings). A simple testing can be made using the applications found in the demo directory of comedilib: $ cd $ cd demo You can use inp for channel reading.

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For example if you want to read channel 5 (-s means subdevice): $./inp -s 0 -c 5 If you want to see the inputs change value, you can simply connect one of the pins present on the device marked GND or +5V to the selected input. For testing output capabilities, you first need to configure the pin as output. Aplikasi pembobol wifi untuk pc richardson.

For this you can use the dio demo application. For example setting pin 7 as output: $./dio -s 0 -c 7 1 and then for setting a value of +5V to the output you can use outp: $./outp -s 0 -c 7 1 setting it to GND (0 V) can be done with this command: $./outp -s 0 -c 7 0 Counter testing Subdevice 1 is a 32 bit counter which gets incremented on falling edges on port 2.7.

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You can read and write the counter as usual with inp and outp (this time using option '-s 1'). Get counter value: $./inp -s 1 -c 0 Set counter value to 255: $./outp -s 1 -c 0 255 There isn't however a suitable demo application for arming the device (start the counter) so I've written one which can be downloaded. Put armcounter.c in the demo directory and compile it: $ gcc armcounter.c common.c -L/usr/local/lib -lcomedi -lm -o armcounter You can now reset and start the counter with this command: $./armcounter -s 1 -c 0 For simple testing you can connect with a wire a generic digital I/O of the device to port 2.7 (for example DIO 0.0). Set it as output: $./dio -s 0 -c 0 1 Toggle it: $./outp -s 0 -c 0 1 $./outp -s 0 -c 0 0 and see the counter incrementing: $./inp -s 1 -c 0 Have fun!