TCP.c File Reference

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Detailed Description

Transmission Control Protocol (TCP) Communications Layer.

Module for Microchip TCP/IP Stack

• Provides reliable, handshaked transport of application stream oriented data with flow control
• Reference: RFC 793

• Dependencies: IP, Tick, Ethernet (ETH97J60.c), ARP (optional), DNS (optional)
• Processor: PIC18, PIC24F, PIC24H, dsPIC30F, dsPIC33F, PIC32
• Compiler: Microchip C32 v1.00 or higher Microchip C30 v3.01 or higher Microchip C18 v3.13 or higher HI-TECH PICC-18 STD 9.50PL3 or higher
• Company: Microchip Technology, Inc.

See the Microchip License Agreement for more details.

Todo:

Change from AppConfig structure to sIPConfig

Modifications to the original file

• Search for "MODIFIX" in the code!
• Removed preprocessor macro STACK_USE_TCP as always defined.

Functions
TCP_SOCKET	TCPOpen (DWORD dwRemoteHost, BYTE vRemoteHostType, WORD wPort, BYTE vSocketPurpose)
	Opens a TCP socket for listening or as a client.
BOOL	TCPWasReset (TCP_SOCKET hTCP)
	Self-clearing semaphore inidicating socket reset.
BOOL	TCPIsConnected (TCP_SOCKET hTCP)
	Determines if a socket has an established connection.
void	TCPDisconnect (TCP_SOCKET hTCP)
	Disconnects an open socket.
void	TCPFlush (TCP_SOCKET hTCP)
	Immediately transmits all pending TX data.
WORD	TCPIsPutReady (TCP_SOCKET hTCP)
	Determines how much free space is available in the TCP TX buffer.
BOOL	TCPPut (TCP_SOCKET hTCP, BYTE byte)
	Writes a single byte to a TCP socket.
WORD	TCPPutArray (TCP_SOCKET hTCP, BYTE *data, WORD len)
	Writes an array from RAM to a TCP socket.
BYTE *	TCPPutString (TCP_SOCKET hTCP, BYTE *data)
	Writes a null-terminated string from RAM to a TCP socket.
WORD	TCPIsGetReady (TCP_SOCKET hTCP)
	Determines how many bytes can be read from the TCP RX buffer.
BOOL	TCPGet (TCP_SOCKET hTCP, BYTE *byte)
	Retrieves a single byte to a TCP socket.
WORD	TCPFindEx (TCP_SOCKET hTCP, BYTE cFind, WORD wStart, WORD wSearchLen, BOOL bTextCompare)
	Searches for a byte in the TCP RX buffer.