Specifications

405
Chapter 18
TCP/IP
CONTENTS
18.1 Two Sides.................................................................................................... 406
18.1.1 BHT-7500S....................................................................................... 406
18.1.2 Hosts ................................................................................................ 406
18.2 TCP/IP over Spread SpectrumSystem ........................................................ 407
18.2.1 General Procedure........................................................................... 407
[ 1 ] Configure Wireless Communications Device .......................... 407
[ 2 ] Configure TCP/IP System ....................................................... 408
[ 3 ] Declare TCP/IP Communications Pathway............................. 409
[ 4 ] Open Wireless Communications Device................................. 409
[ 5 ] Check Wireless Communications Device Synchronization
with Master 410
[ 6 ] Connect to TCP/IP Communications Pathway........................ 411
[ 7 ] Transfer Data or File via Socket Interface............................... 411
[ 8 ] Disconnect TCP/IP Communications Pathway ....................... 412
[ 9 ] Close Spread Spectrum Wireless Device ............................... 412
18.2.2 Programming Notes for Socket API According to UDP.................... 413
18.2.3 Programming Notes for Resume Function ....................................... 415
18.3 Socket API................................................................................................... 417
18.3.1 Overview .......................................................................................... 417
18.4 FTP Client.................................................................................................... 419
18.4.1 Overview .......................................................................................... 419
18.4.2 File Formats ..................................................................................... 419
[ 1 ] User Programs (*.PD3) ........................................................... 419
[ 2 ] Extension Libraries (*.FN3 and *.EX3).................................... 421
[ 3 ] Data Files ................................................................................ 422
18.4.3 Using FTP Client .............................................................................. 425
[ 1 ] Basic Procedure...................................................................... 425
[ 2 ] Configuring FTP Client............................................................ 425
[ 3 ] Calculating Memory Requirements......................................... 426
[ 4 ] Optimizing Drive (Recommended) .......................................... 427
[ 5 ] FTP Transfers ......................................................................... 427
18.5 Socket Library (SOCKET.FN3).................................................................... 428
18.5.1 Overview .......................................................................................... 428
18.5.2 Detailed Function Specifications ...................................................... 431
18.6 FTP Library (FTP.FN3)................................................................................ 452
18.6.1 Overview .......................................................................................... 452
18.6.2 Detailed Function Specifications ...................................................... 454