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2.12 Sending and Receiving
Frequency Shift Key (FSK) Data
AG boards are capable of sending and receiving Frequency Shift Key (FSK) data. The transmit function is an implementation of the modem portion of Bellcore advisory TA-NWT-000030. The basic modulation is continuous-phase binary FSK at 1200 baud between 1200 Hz (mark) and 2200 Hz (space). The only supported baud rate is 1200.
The following functions are used to send or receive Frequency Shift Key data:
To...
Use...
Initiate sending Frequency Shift Key data
adiStartSendingFSK
Stop the sending function
adiStopSendingFSK
Receive Frequency Shift Key data
adiStartReceivingFSK
Stop the receive function
adiStopReceivingFSK
FSK modems are the low-level building blocks for Analog Display Services Interface (ADSI). AG Access does not provide an ADSI programming interface, but you can use the FSK functions to implement ADSI applications.
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