WILDDJ@VAXB.ASTON.AC.UK (07/22/89)
I'm using a WS2000 modem with my ST, and would really like to use it's 1200/75 mode. Does anyone know of any PD program that allows the use of split baud rates (ie 1200/75), as uniterm, etc can't cope with it? Thanks in advance, Dave Wild
mark@ccvr1.uucp (Mark Boyd) (07/23/89)
In article <8907220742.AA22325@ucbvax.Berkeley.EDU> WILDDJ@VAXB.ASTON.AC.UK writes: > >I'm using a WS2000 modem with my ST, and would really like to use it's >1200/75 mode. Does anyone know of any PD program that allows the use of >split baud rates (ie 1200/75), as uniterm, etc can't cope with it? > > Thanks in advance, > Dave Wild Dave, It isn't the communications program that limits you to a single baud rate for receive and transmit, it is the hardware/ ROM software. If the ST's serial port used a ACIA like the keyboard and midi, you could do a hardware mod to separate the RX and TX clocks. Instead it uses the MFP chip to 'fake' a serial port and one of its timers ( D ) serves to set the baud rate for both input and output. Actually you could set different rates - but you couldn't use the bios to do it. You would have to write your own 'fake' serial port software. Not an impossible task, but not trivial either. I've never seen mention of it being done. Mark Boyd,, Computer Science, UNC Asheville, Asheville, NC 28804 mark@ccvr1.ncsu.edu mbunca@ecsvax.uncecs.edu