Product- Development Board

Introduction

ARM7 LPC2148 Development Board is a powerful development platform based on LPC2148 ARM7TDMI microcontroller with 512K on-chip memory. This board is ideal for developing embedded applications involving high speed wireless communication, USB based data logging, real time data monitoring and control, interactive control panels etc. The on-chip USB controller provides direct high speed interface to a PC/laptop with speeds up to 12Mb/s. The UART boot loader eliminates need of an additional programmer and allows you to program using serial port.  The on board peripherals include SD/MMC card interface, USB2.0 interface, 4Kbit I2C EEPROM, Xbee wireless module interface, ULN2003 500mA current sinking driver, L293D DC motor controller, 16X2 character LCD and many more. The on-chip peripherals and the external hardware on the development board are interconnected using pin headers and jumpers. The I/O pins on the microcontroller can be accessed from a 50 pin male header. The board is made from double sided PTH PCB board to provide extra strength to the connector joints for increased reliability. It supports the operating supply voltage between 7V to 14V and has built-in reverse polarity protection.

Note:

Xbee wireless module and SD/MMC card are not included with the board.
The input supply voltage more than 12 V can damage the board. Please use 2V, 1A switch Mode Power Supply

Specifications

• Microcontroller: LPC2148 with 512K on chip memory
• Crystal for LPC2148: 12Mhz
• Crystal for RTC: 32.768KHz
• 50 pin Berg header for external interfacing
• Operating Supply: 9V DC/AC
• 2.4GHz ZigBee (XBee) wireless module adaptor
• 512 bytes of I2C external EEPROM
• USB Type B Connector
• SD / MMC card holder
• 10pin(2X5) FRC JTAG connector for flashing and debugging
• 50 Pin Expansion header
• 2x16 Character Alphanumeric LCD
• L293D 600mA Dual DC motor Driver
• ULN2003 500mA driver
• Dual RS232 UARTs for external communication
• Real-Time Clock with Battery Holder
• 2 Analog Potentiometers connected to ADC
• TSOP1738 IR receiver
• 4 USER Switches
• 4 USER LEDs
• Reset and Boot loader switches
• 3V button cell for on chip RTC
• ON/OFF switch
• Buzzer
• Schematics and Application examples in KEIL provided in the documentation CD
  

Introduction

ARM7 LPC2148 Microcontroller Socket is used with LPC2148 Pro Development Board. It is a standalone board for LPC2148 microcontroller. It has 12MHz crystal for system clock and 32KHz crystal for RTC. It has power on reset circuit with MCP130T brownout monitoring chip and power decoupling capacitors. This board can be used for LPC2148 based generic development.

Note:

To mount LPC2148 Microcontroller Socket on the PCB you may also require Berg strip 2X40 Female 10MM (0.1 INCH PITCH).

Specifications

• Microcontroller: LPC2148 with 512K on chip memory
• Crystal for LPC2148: 12Mhz
• Crystal for RTC: 32.768KHz
• Operating Supply: 3.3V
• Power on reset circuit with MCP 130T brownout detection
  

Introduction

ARM7 LPC2148 is ARM7TDMI-S Core Board Microcontroller that uses 16/32-Bit 64 Pin (LQFP) Microcontroller No.LPC2148 from Philips (NXP). All resources inside LPC2148 is quite perfect, so it is the most suitable to learn and study because if user can learn and understand the applications of all resources inside MCU well, it makes user can modify, apply and develop many excellent applications in the future. Because Hardware system of LPC2148 includes the necessary devices within only one MCU such as USB, ADC, DAC, Timer/Counter, PWM, Capture, I2C, SPI, UART, and etc.

Specifications

• Use 16/32 Bit ARM7TDMI-S MCU No.LPC2148 from Philips (NXP)c
• Has 512KB Flash Memory and 40KB Static RAM internal MCU
• Use 12.00MHz Crystal, so MCU can process data with the maximum high speed at 60MHz when using it with Phase-Locked Loop (PLL) internal MCU.
• Has RTC Circuit (Real Time Clock) with 32.768 KHz XTAL and Battery Backup.
• Support In-System Programming (ISP) and In-Application Programming (IAP) through On-Chip Boot-Loader Software via Port UART-0 (RS232)
• Has circuit to connect with standard 20 Pin JTAG ARM for Real Time Debugging
• 7-12V AC/DC Power Supply.
• Has standard 2.0 USB as Full Speed inside (USB Function has 32 End Point)
• Has Circuit to connect with Dot-Matrix LCD with circuit to adjust its contrast by using 16 PIN Connector.
• Has RS232 Communication Circuit by using 2 Channel.
• Has SD/MMC card connector circuit by using SSP.
• Has EEPROM interface using I2C.
• Has PS2 keyboard interface.