marwood@dmc-crc.arpa (02/27/87)
Thanks for your comments re- the 9600 baud problem. From what you say, it may be impossible to run the Applicard at this speed, if the screen is going to be updated. I was thinking about two possible solutions, using a direct serial I/O from the Applicard bus or writing some sort of buffered driver for the Super Serial Card. Both of these would be fairly long term projects. However, if the screen is the limitation, the first solution may not work. I was also wondering whether some sort of block mode transfer to screen might be possible. One line at a time would presumably be more efficient than the present one character at a time. I have a ][+, so your other solution is not possible. I must use 9600 as I wish to be included in a group access to a VAX, which for complicated reasons cannot use autobauding, and 9600 has been chosen as the fixed rate. Thanks again Gordon Marwood
marwood@DMC-CRC.ARPA.UUCP (03/03/87)
Thank you for your comments regarding the use of the Applicard and Super Serial Card at 9600 baud. In answer to your questions, I am attempting to use MEX+ to communicate between the Apple/Applicard and a VAX11/780. MEX uses the regular CP/M BIOS to communicate with the Apple, though this can be bypassed, I believe, by suitable patches in the MEX patch area. What you have said is encouraging, though it suggests that a special DRIVER will have to be acquired or written for the Super Serial Card. Any information that you can provide on this would be useful. thank you again Gordon Marwood