All of this assumes that you have the board installed via the normal manner, and have executed the serialgt program and set the port settings prior to following these directions. (for your specific needs the enable 485,disable cts, and rx echo cancel boxes should be checked, and the auto 485 and enable source selections should be unchecked) Enabling auto485 in the serialgt application WILL NOT WORK with the board modified for 16C950's, please leave this box UNCHECKED! Checking the 'enable source' box will make the automatic 485 mode setup below inoperable as well, as it switches 485 control to the RTS signal line. So leave the enable source box UNCHECKED! To obtain 4.0Mbps: set clock generator to 60.0MHz. The serialgt program will not let you select values that are above 1.5Mbps (24MHz). So you will have to edit the clock generator setting in the registry manually. To do this on NT4 open the registry editor (regedt32.exe) and expand HKEY_LOCAL_MACHINE SYSTEM CurrentControlSet Services serial (or serialp if you installed the driver separatly from the stock serial.sys) FASTCOM FC4222P_X_0 (the X is the board #, if it is the first board then it will be 1) Edit the ICD_Clockbits value to be (hex) 0x280310 Edit the ICD_Numbits value to be (hex) 0x16 make note of the COM# associated with this port While you are in the registry, expand out HKEY_LOCAL_MACHINE SYSTEM CurrentControlSet Services serial (or serialp if you installed the driver separatly from the stock serial.sys) parameters look in the SerialPX keys to find the matching COM# from above and then make note of the PortAddress value You will need this number and that number+8 to pass to the 950util program. for my particular system this number = DC00, so substitue your number everywhere you see DC00 below. (the +8 value for me is DC08) execute: 950util -i 950util -as DC00 15 950util -ar DC00 64 950util -at DC00 64 950util -aa DC00 1 950util -as DC08 15 950util -ar DC08 64 950util -at DC08 64 950util -aa DC08 1 On the next boot, the clock generator will be set to 60MHz, and the sample rate will be set to 15 samples per bit, the trigger levels will be set to 64 bytes for both transmit and receive, the automatic 485 control mode will be enabled. (and assuming you did the serialgt settings correctly, the cts signal will be disabled, and the 485 mode will be enabled, and receive echo canceling will be enabled (you will not receive what you transmit)). When you set your port to 115200bps you will yield an effective bitrate of (60000000/15)/1 = 4.0Mbps. It is a very good idea to install multiple boards one at a time such that you can be sure which keys relate to which cards. This procedure is similar for windows 2000, only the registry keys are in different locations. I believe that the key that contains the clock settings on W2K will be under HKEY_LOCAL_MACHINE\SYSETM\CurrentControlSet\Services\fcapci\Fastcom\FC4222PCI_xxxxxx The values will be Clockbits Numbits Then to find the address(s) to pass to 950util use device manager (ControlPanel->System->Hardware tab->device manager expand multiport serial adapters select Fastcom:422/2-PCI, properties, resources tab The number we are interested in is the first number in the second io range For the example above it would list it as 'I/O range DC00 - DC0F' and in general it will the range that is XXX0 - XXXF. cg 3/1/2002Download 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.
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