COMM-DRV/LIB High Level Functions

• BytesInReceiveBuffer -- Returns the number of bytes in the receive buffer
• BytesInTransmitBuffer -- Returns the number of bytes in the transmit buffer
• CdrvCheckTime -- Determine if time expired form a previous call to CdrvSetTime
• CdrvCrc16 -- Returns the 16bit CRC of a packet
• CdrvCrc32 -- Returns the 32bit CRC of a packet
• CdrvDelay -- Delay specified time
• CdrvGetPcb -- Returns a pointer to the port's PCB
• CdrvSetTime -- Sets a timer to a specified delay. Expiration is tested by CdrvCheckTime
• CdrvSetTimeoutFunction -- Sets the address of a function that gets called when Delay or CdrvCheckTime is called
• CdrvSetTimerResolution -- Sets the timer resolution used by CdrvSetTime and Delay
• DtrOff -- Turns DTR off
• DtrOn -- Turns DTR on
• FlushReceiveBuffer -- Discards the contents of the receive buffer
• FlushTransmitBuffer -- Discards the contents of the transmit buffer
• GetByte -- Gets a byte from the receive buffer
• GetPaceTime -- Get the current inter-character pace time
• GetPacket -- Gets a packet from receive buffer
• GetString -- Gets a carriage return, line feed, or null terminated string from receive buffer
• GetTimeout -- Get the current timeout value
• InitializePort -- Initializes the serial port (Allocate buffers, cardtype, etc.)
• IsBreak -- Returns true if a break signal was detected
• IsCarrierDetect -- Returns true if carrier detected
• IsCts -- Returns true if CTS signal high
• IsDsr --Returns true if DSR signal high
• IsFramingError -- Returns true if a framing error occurred
• IsInputOverrun -- Returns true if the COMM-DRV receive buffer was overrun
• IsOverrunError -- Returns true if the UART receive register was overrun
• IsParityError -- Returns true if a parity error occurred
• IsPortAvailable -- Determine if a particular port is in use
• IsReceiveBufferEmpty -- Returns true if receive buffer is empty
• IsRing -- Returns true if ring detected
• IsTransmitBufferEmpty -- Returns true if transmit buffer is empty
• PeekChar -- Returns the next character from receive buffer non-destructively
• PutByte -- Queues a byte for transmission
• PutPacket -- Queues a packet for transmission
• PutString -- Outputs a null terminated string
• ReceiveBufferSize -- Returns the receive buffer size
• RtsOff -- Turns RTS off
• RtsOn -- Turns RTS on
• SendBreak -- Sends a break signal
• SetBaud -- Sets new baud rate
• SetFlowControlCharacters -- Sets characters used for flow control
• SetFlowControlThreshold -- Sets high and low receive buffer thresholds
• SetPaceTime -- Sets the current inter-character pace time
• SetPortCharacteristics -- Set line control parameters (baudrate, length, parity,etc.)
• SetTimeout -- Sets the current transmit/receive timeouts
• SpaceInReceiveBuffer -- Returns space unused in receive buffer
• SpaceInTransmitBuffer -- Returns space unused in transmit buffer
• TransmitBufferSize -- Returns transmit buffer size
• UnInitializePort -- Undo the effects of InitializePort (unhook vectors. release memory, etc.)
• WaitFor -- Outputs a string and waits for a matching response
• WaitForPeek -- Non-destructive WaitFor
• WaitForPeekTable -- Outputs a string and non-destructively waits for a matching response to a table of strings
• WaitForTable -- Destructive WaitForPeekTable

COMM-DRV/LIB Modem Functions

• Dial -- Dials using the modem with the Hayes command set
• ModemAnswerMode -- Puts modem in answer mode
• ModemAttention -- Puts modem in command state
• ModemConnect -- Returns true if modem connection attained
• ModemGetCarrierSpeed -- Returns carrier speed
• ModemGetConnectSpeed -- Returns connect speed
• ModemHangup -- Hangup modem connection
• ModemInit -- Set modem initialization string
• ModemModifyString -- Modify modem string

COMM-DRV/LIB File Transfer Functions

• cdrvxfer_files -- Transmit or receive file(s) with specified protocol to completion
• cdrvxfer_getfiles -- Receive file(s) with specified protocol. Must be called several times till transfer complete
• cdrvxfer_sendfiles -- Transmit file(s) with specified protocol. Must be called several times till transfer complete
• cdrvxfer_sfiles -- Transmit or receive file(s) with specified protocol to completion (additional features)
• FileTransferDialog -- Enables an automatic dialog to be displayed on some of the file transfer functions
• SetXferParameters -- Set file transfer parameters
• TransferFiles -- Transfer files

COMM-DRV/LIB Low Level Functions

• ser_rs232_block -- Set timeouts on character reception & trasmission
• ser_rs232_cleanup -- Uninstalls a port
• ser_rs232_dtr_off -- Turns the DTR signal off
• ser_rs232_dtr_on -- Turns the DTR signal on
• ser_rs232_flush -- Selectively fushes input and output buffers
• ser_rs232_get_sdata -- Gets pointer to COMM-DRV system data area
• ser_rs232_getbyte -- Reads a byte from input buffer
• ser_rs232_getpacket -- Reads a packet from input buffer
• ser_rs232_getport -- Gets port information
• ser_rs232_getstatus -- Gets port modem and line status
• ser_rs232_maxport -- Returns the highest addressable port number
• ser_rs232_misc_func -- COMM-DRV multiplex function. Used to setup user callback functions, initialize certain variables, etc.
• ser_rs232_putbyte -- Queues a byte for transmission
• ser_rs232_putpacket -- Queues a packet for transmission
• ser_rs232_putregister -- Writes to specified 8250 type register
• ser_rs232_rts_off -- Turns RTS off
• ser_rs232_rts_on -- Turns RTS on
• ser_rs232_set_intfunc -- Setup user interrupt functions (user callback)
• ser_rs232_setbauddiv -- Sets baudrate divisor for 8250 style UARTs
• ser_rs232_setup -- Installs or modify a serial port
• ser_rs232_viewpacket -- Non-destructively reads a packet from input buffer