DONTRONICS USB SERIAL DRIVER DOWNLOAD
The latter issue seems to occur in any USB convertor that I have used. Whilst being a fairly good device, I still have found a few problems which others may have experienced. PIC gear from Dontronics. I would consider writing a new driver but alas, I have no time at this stage. I think the use of a circular buffer in the driver may solve the problem. It’s not that simple, you can’t do full-duplex on RS Apr 19, 9.
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USB/LC | 1 port USB to RS adapter cable
Whilst being a fairly good device, I still have found a few problems which others may have experienced. Its always a potential problem. At least NT seems sdrial have a timer interrupt every 10 ms or every 15, ms with multiprocessor kernelsso the time between the checks could be this long, corresponding to more than character times at k2. That’s what the Windows driver guys I know told me.
Search Forums Recent Posts. This works quite well for short lines a few meters at moderate speeds. At least in some old modem system for which RS was originally designedthe DTE computer raises the RTS signal to advertise that it dontronicw something to send.
I very much doubt that the driver would run in a busy loop constantly checking the UART status register to find out, when the last stop bit has actually been sent. PIC gear from Dontronics. A less reliable method which works surprisingly well on short distances is to run it in a similar way as the CAN bus was originally used with RS drivers before dedicated CAN drivers were available.
On 11 Feb I can work around that in my code, but I would prefer not to. You’ll need to choose a username for the site, which only take a couple of moments here. I think I’m at segial an overnight visi. You must log in or sign up to reply here. I did note some info on the FTDI site that may be useful, but have not really looked into it a great deal. The serial card is fantastically solid under all versions of Windows.
Sign in Sign in Remember me Forgot username or password? Usb to driver problem. I think the use of a circular buffer in the driver may solve the problem. Apr 20, Apr 17, 4. It checks the shfit-register empty status bit every millisecond until true, dlntronics drops RTS.
RS232 or USB to RS485
Reply Start a New Thread. As Paul K wrote below: Arduino Robotics Lonnie Honeycutt. The main problem is that I am dealing with serial devices that continuously transmit data.
Such busy looping might be acceptable in MS-DOS type single thread systems but not in multitasking operating systems.
RS is a single twisted pair that must be shared by both Transmit and Receive. Other possibilities would be RS and RS I was hoping that someone else may have seen these problems before.
Recommended USB/Serial Adapters | C-Bus Forums
Apr 19, 9. Apr 16, 2. On 12 Feb Does a standard Windows without enabling multimedia timers really have timer interrupts every millisecond. Apr 17, 6.