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VIA VT1211 DRIVER

December 7, 2018

You don’t want to be scratching your head wondering why bits appear to occasionally flip unexpectedly. You of course need to know a little about your hardware and how to drive it. Second is to de-bounce your switches so you don’t get relay chatter. You should also take a peek at vt You need to have su root permissions.

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July 08, Language translations now possible! Tuftec Full Member Posts: Please login or register. So, this is a series of things that much be accomplished, however, what are some pointers for programming the VT to accept and perform commands as they are entered in to the CLI?

Making use of GPIO pins on VIA VT inside a HP T

You of course need to know a little about your hardware and how to drive it. The sleep command serves two purposes, first is so that it does not use excessive CPU time.

If you search on line there are some basic tutorials on writing kernel modules out there. Second is to de-bounce your switches so you don’t get relay chatter.

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Vua choice for the directory and file names are up to you, I just made these up for the description. The switches will be part of the HMI to allow control of the relays and software functions without the need of issuing commands on the computer’s console.

The LEDs are going to be used for display purposes; to show whether a mechanical device is supposed to be running or not, show stop or run of a mechanical or software process, etc. You need to have su root permissions.

VIA drivers for chipset, IrDA and card reader and Microsoft Windows

If you are happy to use the standard kernel and not that concerned about running as root then the code is reasonably straightforward. You will need the compiletc extension in order to compile the driver.

I’m looking for a few pointers and here is what I’m wanting to do in a nutshell: If one is not included in the voa or as a module, you need to write one. You should also take a peek at vt You don’t want to be scratching your head wondering why bits appear to occasionally flip unexpectedly.

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VIA drivers for chipset, IrDA and card reader and Microsoft Windows

That is what device drivers are for. Using the RT kernel is a little messier but it all seems to work. Greetings all, I’m new to hardware programming. If you are not too vix about Linux correctness and you just need to get soething going in a hurry, you can write directly to the machine hardware.

One more thing, be sure to use isolation resistors between the output port and your relay drivers. Did you miss your activation email? Do NOT try to de-bounce the switches by hanging capacitors across the contacts, and make sure your pullup resistors are returned to the same vi the IO chip is running at. Home Help Login Register. The driver would basically 1.