96 Chapter 2: TI-83 Plus Specific Information
TI-83 Plus Developer Guide Third Release May 28, 2002
The following systems routines are used for polling the link and sending/receiving a
byte of data.
Rec1stByte
Polls the link port for activity until either a byte is received, the
É key is pressed, or an error occurs during communications.
The cursor will be turned on by this routine.
Rec1stByteNC
Polls the link port for activity until either a byte is received, the
É key is pressed, or an error occurs during communications.
The cursor is not activated by this routine.
RecAByteIO
Attempts to read a byte of data. If no activity is detected in about
1.1 seconds, an error occurs.
SendAByte
Attempts to send a byte of data. If no activity is detected in about
1.1 seconds, an error occurs.
An error handler should be set when using these routines. Each of these routines
will generate system errors.
See the System Routine Documentation for more details.
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