Page 50 - ARM Based Microcontroller Projects Using MBED

36 3. THE ARM MICROCONTROLLERS

FIG. 3.9 LPC1769 LPCXpresso development board.

3.4.6 LPC1769 LPCXpresso

This development board (Fig. 3.9) is based on 32-bit Cortex-M3 core and has the following
features:
• 120MHz clock
• 4MHz internal RC oscillator
• 64KB RAM, 512KB flash memory
• Ethernet
• USB device/host controller
• 8-channel DMA
2
2
•4 UART, 2 CAN, 3 SPI, 3 I C, I S, 8 ADC, DAC
•4 timers, 6 PWM, RTC, 70 GPIO
• Quadrature encoder interface
• Power management unit
• Reduced power modes
• Code read protection
• On board SWD/JTAG debugger
• 3.15–3.3V external power or power via USB port

3.4.7 LPC1347 LPCXpresso

This development board (Fig. 3.10) is based on 32-bit Cortex-M3 core and has the following
features:
• Cortex-M3 core
• 72MHz clock
• Low cost
• 12KB SRAM, 64KB flash memory
2
• ADC, 4 timers, 2 SPI, I C, USART
• USB bootloader