/*
 * C A S I O . C
 *
 *  Interface to the CASIO SF-4300 digital diary
 *
 * To all you Internet people where I mailed this source to:
 *
 * I created this program and the interface circuit mainly to have
 * a backup of my Casio data, just in case. This is exactly what this
 * program does. It just reads data from the Casio and puts it into a file
 * or does just the opposite. I haven't done anything with the file format.
 *
 * If you have some more time than I have and want to make a nice PC-based
 * scheduler out of this or simply convert the Casio backup file into a
 * format that can be imported into an existing Personal Information Manager
 * package, please let me know the results.
 *
 * I have used the (Maxim) MAX232 chip as an RS232-TTL level converter. I
 * recently received a Maxim newsletter in which they announced a similar
 * level converter that does not need the external capacitors. This would
 * make the interface even simpler and smaller. I did not build a nice
 * Printed Circuit board, but I just glued the MAX232 upside down in a
 * 25pole connector housing and connected the remaining components to it.
 * It took some puzzling, but it all fitted into this serial connector
 * housing and it makes a nice interface cable.
 *
 *
 *
 */