My front program is machIII by artS0ft (32b/WinXP) require couple parallel hi-speed port to be present, it's a real trouble on highspeed even if those present physically. The real trouble with equipment is to provide true rapid data exchange with controller of steppers.
Re: How to redirect data from real port to Bit-Bang driver ?Ī year ago I was infected with СТС virus, as millions other was)). But may be there are a way to use hardware BP exception on port range? If there are no similar that solution, i should use consecutive connection to a bigger of drivers list: my redirector, FTDI USB, virtual lpt. In most cases ppl write (or use 3rd party) virtual port LPT driver, and uses it according to their tasks. I study this issue on inet, and havnt found reliable way to do this not so complicated task. I need to intercept write target data, and send (reroute) to USB driver (following FTDI docs) and when target application shall read data from port, read data from chip (by USB driver) and return those data back to target application request. The target application was configured ti use two LPT ports. My computer doesn’t have LPT port, but 4 USB (nb). I decided to use FTDI chip (FT245) and their FD2xx driver and support simple bitbang up to 48Mb/s. I have target application that uses several LPT ports (1.3) to communicate with external equipment.
