Re: Sending data direct to USB in OSX
Re: Sending data direct to USB in OSX
- Subject: Re: Sending data direct to USB in OSX
- From: Doug McNutt <email@hidden>
- Date: Sun, 14 Mar 2004 15:22:27 -0700
At 18:55 -0800 3/14/04, Rod McDevitt wrote:
>
I used to use a mini-application specially written to send a cash drawer trigger (usually control-g) to the serial port on my Mac using OS9 - now with OSX and USB and a USB receipt printer, I need to do the same.
Delcom Engineering
http://www.delcom-eng.com
I'm working with a fellow who wants to use the USB for scientific instrumentation. He brought over a chip on a prototype printed circuit board and a couple of drivers that came with it.
The drivers install in the /dev/ directory and it all worked right out of the box.
It was as simple as using Terminal to "cat" a short text file to the device. All of the USB headache was handled by the driver. 8 bit parallel bytes were easily seen using an oscilloscope to look at 5 volt test points on the PCB.
cat textfile > /dev/DelcomDriver
--
--> As a citizen of the USA if you see a federal outlay expressed in $billion then multiply it by 4 to get your share in dollars. <--
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