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mbedNXPLPC11U2432位MCUUSB連接解決方案

2012-08-20
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LPC11U24 主要特性和優勢:

ARM Cortex-M0 processor, running at frequencies of up to 50 MHz

ARM Cortex-M0 built-in Nested Vectored Interrupt Controller (NVIC)

Non-Maskable Interrupt (NMI) input selectable from several input sources

System tick timer

Up to 32 kB on-chip flash program memory

Up to 4 kB on-chip EEPROM data memory

Up to 10 kB SRAM data memory

16 kB boot ROM

In-System Programming (ISP) and In-Application Programming (IAP)

ROM-based USB drivers. Flash updates via USB supported

ROM-based 32-bit integer division routines

Standard JTAG (Joint Test Action Group) test interface

Serial Wire Debug

Up to 54 General-Purpose I/O (GPIO) pins

Up to 8 GPIO pins can be selected as edge and level sensitive interrupt sources

Two GPIO grouped interrupt modules

High-current source output driver (20 mA) on one pin

High-current sink driver (20 mA) on true open-drain pins

Four general-purpose counter/timers

Programmable Windowed WatchDog Timer (WWDT)

10-bit ADC with input multiplexing among eight pins

USB 2.0 full-speed device controller

USART (Universal Synchronous Asynchronous Receiver/Transmitter)

Two SSP (Synchronous Serial Port) controllers

I2C-bus interface supporting the full I2C-bus specification and Fast-mode Plus

Crystal Oscillator with an operating range of 1 MHz to 25 MHz

12 MHz high-frequency Internal RC oscillator (IRC)

Internal low-power, low-frequency WatchDog Oscillator (WDO)

PLL allows CPU operation up to the maximum CPU rate

A second, dedicated PLL is provided for USB

Clock output function with divider

Integrated PMU (Power Management Unit)

Power profiles residing in boot ROM

Four reduced power modes

Processor wake-up

Power-On Reset (POR)

Brownout detect with four separate thresholds for interrupt and forced reset

Unique device serial number for identification

Single 3.3 V power supply (1.8 V to 3.6 V)

Temperature range -40 ℃ to +85 ℃

LPC11U24 應用:

Consumer peripherals

Medical

Industrial control

Industrial control

USB audio devices

圖1.LPC11U24 框圖


圖2.自供電設備的USB接口連接圖

Rapid Prototyping for USB devices, battery applications and low-cost 32-bit ARM® Cortex™-M0 based designs

圖3.mbed NXP LPC11U24 MCU模塊外形圖

The mbed NXP LPC11U24 Microcontroller in particular is designed for prototyping low cost USB devices, battery powered applications and 32-bit ARM® Cortex™-M0 based designs. It is packaged as a small DIP form-factor for prototyping with through-hole PCBs, stripboard and breadboard, and includes a built-in USB FLASH programmer.

圖4.mbed NXP LPC11U24 MCU模塊連接圖

圖5.mbed NXP LPC11U24 MCU模塊電路圖(1)

圖6.mbed NXP LPC11U24 MCU模塊電路圖(2)

圖7.mbed NXP LPC11U24 MCU模塊電路圖(3)

圖8.mbed NXP LPC11U24 MCU模塊電路圖(4)
詳情請見:
http://www.nxp.com/documents/data_sheet/LPC11U2X.pdf

http://mbed.org/media/uploads/chris/mbed-010.2-schematic.pdf
以及
http://www.nxp.com/documents/user_manual/UM10462.pdf



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