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Re: Virtual serial drive

Il giorno sabato 8 settembre 2012 12:14:51 UTC+2, Riccardo ha scritto:
> Ok, I restart to studied "Inside the Apple IIc" by Gary B. Little 1985, Chapter 11, "The Serial Interface Ports", from page 299 to page 324, it's the great work. And reopen my old book: "Sistemi a microprocessore" by R. Baranzini, D. Capezzuto, G. Dugnani, HOEPLI 1986.
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> First:
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> - //c have two 6551 ACIA (Asynchronous Communication Interface Adapter)IC
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> - PC/MAC typical use Intel 8251A USART (Universal Synchronous Asynchronous             
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>   Receiver Transmitter)IC, i think.
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> both IC implement AIA RS-232-C and have two phases:
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>  Programmer and Communication
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>  
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> Right, my first question:
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>  At page 307 Figure 11-3 of "Inside the Apple IIc" book, show max set-up speed to 19200 bit/s, but i great currently work up 115200 bit/s with ADTPro, Why ?
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> see you to next step.
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> Thanks
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> Riccardo

Thanks,

Another choice:

1) With Prodos Utilities v 1.0 1984 Apple //c original:

110 - 300 - 1200 - 2400 - 4800 - 9600 - 19200