Table of Contents
1 Product Overview..........................................................................................Page 1
1.1 About This Manual.........................................................................Page 1
1.2 Introduction....................................................................................Page 1
1.3 Features and Benefits Summary...................................................Page 2
1.4 Related Products...........................................................................Page 3
2 Memory..........................................................................................................Page 4
2.1 SDRAM..........................................................................................Page 4
2.2 Flash..............................................................................................Page 4
2.3 Compact Flash Cards....................................................................Page 5
2.4 USB Flash Drives...........................................................................Page 6
3 Serial Ports....................................................................................................Page 7
3.1 COM1.............................................................................................Page 7
3.2 COM2.............................................................................................Page 8
3.3 RS-485 Support.............................................................................Page 8
3.4 RS-485 Quick-Start Procedure......................................................Page 9
3.5 Automatic RS-485 TX Enable........................................................Page 10
3.6 Using Automatic RS-485 within Linux...........................................Page 11
3.7 Adding Serial Ports........................................................................Page 11
4 Digital I/O.......................................................................................................Page 13
4.1 DIO Header...................................................................................Page 14
4.2 LCD Header...................................................................................Page 15
4.3 Using DIO Header for SPI bus......................................................Page 16
4.4 LCD Interface................................................................................Page 17
5 A/D Converter................................................................................................Page 18
5.1 Single Sample Acquisition Procedure...........................................Page 19
6 Matrix Keypad Support..................................................................................Page 21
7 Real-Time Clock............................................................................................Page 22
8 10/100 Base-T Ethernet Port.........................................................................Page 23
9 Linux TCP/IP Configuration...........................................................................Page 24
10 Watchdog Timer..........................................................................................Page 25
11 LED, Jumpers and Push-Button Reset.......................................................Page 26
12 PC/104 Bus Expansion...............................................................................Page 27
13 Loading or Transferring Files......................................................................Page 29
13.1 Transferring Files via the Ethernet Port.......................................Page 29
13.2 Transferring Files via Compact Flash..........................................Page 29
13.3 Zmodem Downloads....................................................................Page 30
14 Debugging...................................................................................................Page 31
14.1 Debugging with gdb.....................................................................Page 31
14.2 Low-Level Debugging with RedBoot...........................................Page 32
14.3 Using Other Debuggers...............................................................Page 32
