DSI


DS2148BB

LPC2148 ARM7 Bare Bone = best development quick start board for only    $75   buy

Digital Shortcut Inc. DS2148BB board features LPC2148 (32bit ARM7 microcontroller). When you need a fast processor with an USB interface this board is the perfect choice. It is a low-cost platform - ideal for KickStart of a new project as well as high-volume OEMs.

Features

Feature Description
Processor LPC2148 from NXP
  • • 512kbytes Flash ROM , 32kbytes + 8kbytes RAM
  • • USB 2.0 Controller
  • • two UARTs
  • • Two I2C interfaces
  • • two SPI interfaces
  • • Two 32-bit Timers
  • • Watch Dog Timer
  • • Low Power RTC
  • • Two 10bit ADCs (up to 14 channels)
  • • 10bit DAC
  • • PWM unit
  • • Multilevel Interrupt System
  • • 40+ Fast General purpose I/O pins (5V tolerant)
  • • ISP and IAP capabilities
  • • Flash: 100,000 erase/write cycles
       20 years of data retention
  • Arm7_dia
    Support
    Elements
  • • 12.000 MHz crystal (60 MHz execution with PLL)
  • • 32.768 Hz crystal for RTC
  • • MAX3232 with NXP bootloader support (ISP)
  • • 8 kbit I2C E2PROM for storing non-volatile parameters
  • • manual reset button
  • DS2148BB
    Power On board low-dropout 3.3V regulator TPS73733
  • • Power Supply 3.5 - 5.5 VDC or from USB port
  • • Power consumption under 1Watt
  • Connectors
  • • USB type B
  • • DSUB-9 for RS232
  • • 20 pin JTAG port header
  • • optional two 24 pin headers/sockets
       with P0, P1 signals (0.1 spacing)
  • • optional 2 pin header for external power supply
  • Only $75,   order it online

    buy

       Fast, Small, Low Power, Easy

    Dimensions
  • • 2.9" x 1.3" (74 x 33 mm)
  • Software examples Our download page has a nice set of powerful software examples:
    LPC2148 Demo Application with FreeRTOS Kernel port from http://www.freertos.org/ integrated by John C. Wren http://jcwren.com/arm/. This project covers most of LPC2148 standard peripherals used as non-trivial interfaces to LCD Display, LM75 Temprature Sensor and GPS to name only a few. It is designed as a Real-Time System with several tasks running concurently. John utilized open source solutions from Richard Barry (FreeRTOS), Adam Dunkels (uIP), Bertrik Sikken (LPCUSB) and others. The combined result (representing probably thousands of man-hours) is really impressive and the porting to our board is only click away from your computer. You are getting full sources with "makefiles" and "batches" for FREE, while commercial Embedded RTOS can cost even thousands of dollars. We didn't use all the features/modules from original demo, but most of the stuff and the "frame infrastructure" is there.
    LPC2148 RTC project.
    LPC2148 Timer 1ms system "heart beat" application.

    DS2148BB Software Package available for download:   
    DS2148BB.zip

    Development Environment

    All software for DS2148BB board was written in plain C, compiled with an excellent FREE open source GCC and programmed to LPC2148 by FREE Serial Flash Loader. Instructions for Tools Downloading are on Download Page





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