LPC2148 Development Board

The LPC2148 Development Board LPC2148 ARM7TMDI based microcontroller. The LPC2148 microcontroller has 512KB of internal flash and 32+8K RAM. Following are the salient features of the board.

• Power supply: DC 9V with power LED
• On-board linear regulators generate +3.3V/500mA and +5v/500mA from power supply
• USB connector (as alternate power source)
• Connectors:

Extension headers for all microcontroller pins. RS232 connectors (2)

PS/2 connector. JTAG connector.

SD/MMC connector.

USB B-type connector with Link-LED

• Other Peripherals:
• 512Kb I2C based EEPROM Audio power amplifier.
• 16×2 LCD with back light control.
• Configurable for manual and automatic program download (ISP) via serial port. 8 controllable LEDs on SPI using 74HC595.
• User Interrupt, ADC, Buzzer, RTC.

2:  System Requirements:

• Windows XP & Win 7
• Serial or Parallel port
• USB port

3: Starting off & connecting the hardware:

After unpacking the LPC2148 board connect a DC supply of 9V/1A to the DC jack to power the board. The LPC2148 board can also be powered through USB.

4: Programming LPC2148 Board:

LPC2148 Board can be programmed through serial port UART “0” using “LPC2000 flash utility V2.2.2” is a freeware windows utility used to download the hex file format onto the LPC2148 Board. If your PC does not have a serial port; use a USB to serial converter to download the hex file.

• Programming LPC2148 Board through ISP.

The LPC2148 Board can be programmed through ISP in two modes: 1. Auto Mode 2. Manual Mode

1. Auto Mode:

To program in Auto mode you need a full serial cable with DTR & RTS. (Recommended not to use Auto Mode).

2. Manual Mode:

To program in Manual mode you need a half serial cable (which just has TX, RX and GND wire connected). And connect the half serial cable to UART0 and power the board. (Recommended mode)

• Open LPC2000 Flash Utility V2.2.2
• Browse File name and Select the hex file to be downloaded.
• Select Device as LPC2148
• Set XTL Freq [KHz] to 12000
• Blank Check: Entire Device
• Select the appropriate com port (See your “device manager” to find out the com port number)
• Select the Baud Rate in between 9600 and 38400
• Uncheck “Use DTR/RTS for Reset and Boot Loader Selection”
• Click on Read Device ID.

To make the board enter programming mode:

• Hold down ISP and RESET Buttons, then release RESET first and finally ISP.
• The controller enters the bootloader mode.
• It will display as “Read device ID Successful”.
• Click on the Upload to Flash Button.
• Program uploaded successfully.
• Click the Rest Button on the Board. That’s it, your hex file is on the board.

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Package Includes :

1 x LPC2148 Development Board