Introduction

The EM202-EV is a 100BaseT Ethernet to serial board based on the EM202 Ethernet module. The board offers a convenient way to test the EM202 and is also small enough to be used in production devices as a faster implementation alternative to modules.

The EM202-EV is a dual-use device: depending on the loaded firmware it can work as a fixed-function, ready-to-run serial-to-Ethernet converter (default) or BASIC-programmable module.

As a serial-to-Ethernet converter, the EM202-EV allows you to quickly network-enable practically any serial device or system.

As a BASIC-programmable controller, the EM202-EV offers a low-cost, rapid development alternative to expensive and complex computing platforms, such as LINUX-based boards.

The EM202-EV is supplied in three versions (-RS, -TM, -TS) that differ in the set of installed components- see bottom of page for details. The EM202-EV can be used to create a standalone product or it can be built into your host device as a network communications board.

Hardware Features

• Compact, PCB dimensions only 52.6x38mm.
• Two power options: onboard power regulator with 9-24VDC input range (-RS, -TM) or direct 5VDC input (-TS).
• One 100BaseT Ethernet port.
• Choice of RS232 (-RS) or TTL-level (-TM, -TS) serial port (TX, RX, RTS, CTS, DTR, DSR).
• Two status LEDs on top of the Board* (-RS).
• Optional onboard reset source with brown-out detection (-RS, -TM).
• Internal firmware is upgradeable through the serial port or network.
• EM202-EV Starter Kit available.
• CE- and FCC-approved.

Serial-to-Ethernet Converter Features

• Serial port lines can be used as remotely controlled I/O.
• Full- or half-duplex operation for TTL-level serial port (-TM, -TS).
• 8KB routing buffers (x2, one in each direction).
• Onboard EEPROM stores numerous user-definable functioning parameters (Settings).
• Setup through the serial port or network (UDP commands or "Telnet" TCP session).
• Over-the-network IP address configuration is also supported.
• Specialized "on-the-fly" commands for serial port control.
• "Modem" commands to control network connections; status commands for remote monitoring, etc.
• Direct control of ADSL modems.
• Supported network protocols include UDP, TCP, ARP, ICMP (PING), DHCP, PPPoE, and LCP.
• Supplied with the Device Server Toolkit (DST) for Windows. The DST includes Virtual Serial Port Driver (VSPD) , a.k.a. "COM redirector". LINUX version of the VSPD is also available.
• Works with the AggreGate system.

BASIC-programmable Controller Features

• Executes your application written in Tibbo BASIC.
• Absolute flexibility - think of your device as a miniature computing platform.
• Supplied with TIDE -- a comprehensive development environment featuring seamless cross-debugging.
• Integrated web server (HTTP) with dynamic content generation.
• Numerous high-level objects speed up and simplify coding. Available objects include:
• Sock- up to 16 simultaneous TCP or UDP connections;
• Ser- UART communications;
• Io- control serial port lines;
• Stor- read to and write from the EEPROM;
• Romfile- add static (ROM) data to your project;
• And more...
• Learn about programming with Tibbo BASIC here.