1. DecisionSerial.zip Driver
2. relnotes.txt File Contents

relnotes.txt Driver File Contents (DecisionSerial.zip)

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              Decision PCCOM Driver Package for Windows NT 
                                  2.10
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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).