Re: TI-H: DriverLESS Memory Expander
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Re: TI-H: DriverLESS Memory Expander
This would take longer to write than an ASM driver!
Grant
>Hello!
>
>I was wondering if anyone had ever considered a PIC or COP controlled
>memory expander that uses 100% TI-Protocol. It could send and recieve
>files using the standard link screen, but one file, maybe a TI-BASIC
>program file with the name EXPANDER could be a command file
>
>Here is how I see it would work...
>
>You type a command into the first line of the program and the argument
>would be the second line. For example, the TI-BASIC file with the words
>NEWDIR in the first line and an 8 character file name in the second line
>could create a new directory. DIR in the fisrt line and nothing in the
>second would set the expander to send a TI-BASIC program with a list of
>all the files, directories, and their contents. Typing DIR and a
>directory name would set it to send a TI-BASIC program with just that
>directory listed in it. Typing CD and a directory name or periods (.) to
>go backwards one or more levels would control what dirrectory you were
>in. Typing DELETE and a file or directory name would delete that file.
>Typing GET and a filename would set the expander to send a file of that
>name if it exists. You would simply send the file EXPANDER and when the
>expander reads the header, instead of storing it to the active
>directory, it would read the first command to the end of the line and
>then the file/dir name or periods. It would create new directorys,
>select the active directory, send a copy of the whole expander or just a
>specific directory, delete a file or entire directory, or tell what file
>you want to get. Once you tell it what to do with the EXPANDER file, you
>send or recieve your file using the standard link screen.
>
>Is there ANY chance of building an expander like this. Maybe you could
>have it simply recieve a backup file to. If your calc crashes, reset it,
>create a file called EXPANDER using the program editor, type in the
>command to set the directory and send it then type BACKUP or whatever
>the calc names those things. Maybe, to send backups, it could ask what
>filename you would like to use for it, just so you can identify it and
>have multiple backups.
>
>Preferably, it would run on any calc, and didplay only files with the
>specific calc's header.
>
>This command thing would ELIMINATE the need to memorize the file names
>or buy a $20 LCD to slap on it. You could probably even create a driver
>that would use TI-Protocol or maybe even switch into a higher speed
>custom protocol. You could store the expander ASM program to the
>expander and copy it only when you need it or even restore it after a
>crash if you can first run a backup off of it!
>
>Is this a possibility. I know it hasn't been done, but If no one else
>will try, I WILL. I will buy the equipment and the books I'll need to
>learn ASM and microcontrolers, because I'll need to learn it for one of
>my future college courses anyway (get ahead! =)!!!
>
>Thanks!
>
>
>Richard Piotter
>
>email:
>
>E-Mail:
>richfiles1@hotmail.com
>richfiles@usa.net
>
>The Richfiles:
><A
>HREF="http://www.geocities.com/SiliconValley/Lakes/5081/Richfiles.html">The
>Richfiles TI Page</A>
><A HREF="http://www.geocities.com/Area51/Lair/8510/Richfiles.html">The
>Richfiles Model Building Page</A>
>
>
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