******************************************************************
Decision PCCOM Driver Package for Windows NT
2.10
******************************************************************
Revision History:
2.11:
- Basic support for Windows 2000 was added. The same driver is used for
Windows 2000, however, a customized INF file prevents the 'device found'
messages.
2.10:
- Fixed a problem in the driver not handling the line state change of the
16554 UART correctly. This could cause a 422 or 485 port not to be usable
from certain applications anymore, after ones opened and encountering
data reception errors.
- Fixed a problem with returning data received with wrong parity in the wrong
order.
2.9:
- A DOS VDM Driver was added, which simulates virtual 16540 UARTS
while mapping them onto the standard COM ports managed by the
Decision driver. This allows DOS programs to utilize the PCI, ISA
and RISCOM cards in a DOS Virtual Machine under Windows NT.
The I/O ports and the simulated IRQ's can be freely assigned. The
driver supports up to 8 mappings. Note that due to the software
emulation of the UART, the full UART speed will not be available.
The emulation has been tested with several DOS applications, including
TELIX and COMit. The driver should also work with the standard FOSSIL
drivers, though this has not been explicetly tested.
2.8:
- The RISCOM card series was added to the setup
- A bug was fixed, where the COM Port names of ports connected to a device
were not updated successfully.
2.7:
- A problem in the device description for the PCCOM ISA 2 Port card was
fixed. The addresses for the 2 ports are now freely configurable.
- The HighSpeed cards have been removed from the setup, since they are just
like the normal cards, maybe with different quarz frequencies. Therefore, it
is not necessary to have a different card type for them.
2.6:
- Added a quarz frequency / multiplier field to the setup of every
single port. With this setting, the quarz frequency of the card can
be specified, such that the driver can generate the correct baudrate.
The setting is per port, since for older software, which doesn't support
460kB settings, a lower frequency can be specified for the port,
effectively supporting a higher baudrate. For example, if a card has
a 7.372 Mhz, you can specify this frequency in the port setup. The baudrates
requested will then be REAL baudrates. However, if you want to achieve
a baudrate of 460kB, but your third-party software only supports 115kB,
set the frequency of the port to 1.843 Mhz (1/4), then all baudrates will
be 4x. (115 kB -> 460 kB, 300 Baud -> 1200 Baud, etc).
- For the 16550 and 16650 chips, baudrates up to 460 kBaud are now supported,
both in the PCI and in the ISA driver.
- A bug was fixed causing a resource conflict between the ISA driver and
the internal helper driver (PccIsaRc).
Download Driver Pack
After your driver has been downloaded, follow these simple steps to install it.
Expand the archive file (if the download file is in zip or rar format).
If the expanded file has an .exe extension, double click it and follow the installation instructions.
Otherwise, open Device Manager by right-clicking the Start menu and selecting Device Manager.
Find the device and model you want to update in the device list.
Double-click on it to open the Properties dialog box.
From the Properties dialog box, select the Driver tab.
Click the Update Driver button, then follow the instructions.
Very important: You must reboot your system to ensure that any driver updates have taken effect.
For more help, visit our Driver Support section for step-by-step videos on how to install drivers for every file type.