!The information on fcset in the previous readme is out of date. The new functions that were added modified the operation of the fcset example.! 'on the fly' operation in windows NT4.0 for FASTCOM async serial PCI cards. to install the necessary drivers execute: fcpinstall -i 850util -i once this is done you can run the fcset utility, or write your own code that uses the functions in the fcputil.h/.dll to access all of the functions that are available in serialgt. The only function that you can't change is the "transmit write size", that value is the TXFIFO registry entry for the serial driver/subkey, and it is only loaded by the serial driver on boot/driver load. The rest of the options are transparent to the driver. It is probably a good idea to have the port closed when changing options, but other than that it should be a changeable "on the fly" operation. !Important! //note the state variables are not kept in the dll if the dll is unloaded, //as a result of this if you execute fcset multiple times, say //the first time executing -enable485, and the next time with -rxechocancel //the second call will "turn off" the enable485 option //the only way around this is to do "both" durring the same instance of the dll. //so if you write a function that calls both functions before program exit it will //work correctly. //the values affected by this are -enable485,-ctsdisable,-rxechocancel,and -485source //also you should set the trigger values before the 485 function, just as in the 850utils docs //so call all of the functions in one program in this order: /* set_max_baud(unsigned com_number, double max_bitrate); set_4x(unsigned com_number, BOOLEAN state); set_txtrigger(unsigned com_number, ULONG value); set_rxtrigger(unsigned com_number, ULONG value); set_auto485(unsigned com_number, BOOLEAN state); set_enable485(unsigned com_number, BOOLEAN state); set_ctsdisable(unsigned com_number, BOOLEAN state); set_rxechocancel(unsigned com_number, BOOLEAN state); set_485source(unsigned com_number, BOOLEAN state); */ Also the max baud function does not take into consideration the 4x function (ie the 115.2k rate will either be the max_bitrate as set, or max_bitrate/4) cg 11/13/2002 files required: 850util.exe fcpinstall.exe 850utils.sys fcpclockset.sys fcputil.dll fcputil.lib fcputil.h [fcset.c] [fcset.exe]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.