Low cost development board for the LPC2124. Includes a CS8900 Ethernet interface (note this is bit banged, not interrupt driven) and FTDI USB<->RS232 interface.

A FreeRTOS.org WEB server demo application using Rowley Crossworks is available for this board.

Features:

• MCU: LPC2124 16/32 bit ARM7TDMI-SÖ with 256K Bytes Program Flash, 16K Bytes RAM, RTC,4x 10 bit ADC 2.44 uS, 2x UARTs, I2C, SPI, 2x 32bit TIMERS, 7x CCR, 6x PWM, WDT, 5V tolerant I/O, up to 60MHz operation
• Standard JTAG connector with ARM 2x10 pin layout for programming/debugging with ARM-JTAG
• CS8900 Ethernet interface
• 24LC515 EEPROM for external web storage
• Two general purpose buttons
• Potentiometer connected to analog input 0
• Two on board voltage regulators 1.8V and 3.3V with up to 800mA current
• Single power supply: >+5VDC required
• Three LAN status LEDs, three general purpose status LEDs
• Power supply filtering capacitor
• USB to RS232 interface
• RESET circuit with external control of Philips ISP utility via USB/RS232
• RESET button
• DBG jumper for JTAG enable
• BSL jumper for bootloader enable
• JRST jumper for enable/disable external RESET control by RS232 14.7456 MHz crystal
• Extension header for all uC ports
• Dallas iButton interface

Please note that this is a low cost development board and as such is shipped without development tools or documentation – please use the links below for documentation downloads.

Suitable development tools include:

• Yagarto - Open source GCC based tool chain.
• Rowley CrossWorks for ARM - Excellent value and fully featured IDE for GCC.
• IAR Embedded Workbench for ARM - A free 32K limited KickStart edition is available.

Downloads:

• UART demo code
• Button read and status LED
• uIP freeware TCP-IP stack port by Rowley Associates for LPC-E212x boards
• FreeRTOS WEB server demo

Documents:

• LPC-E2124 Schematic
• Ethernet LED Matrix tutorial by Owen Osborn