简单地看了下，这伡是基本CORTEX-M4核的，很不错唉！！！具体的说明如：
The Atmel®™-M4 processor-based microcontroller. Extension boards can be purchased individually. Key Features - SAM4LC8CA microcontroller
- One mechanical reset button
- One mechanical user pushbutton (wake-up, bootloader entry or general purpose)
- One QTouch® button
- One yellow user LED
- USB interface, host and device function (shared physical interface)
- 32.768kHz crystal
- 12MHz crystal
- 4 Xplained Pro extension headers
- One custom extension header for segment LCD displays
- LDO/buck regulator mode selection
- LCD cluster power configuration option
- Embedded debugger
- Auto-ID for board identification in Atmel Studio 6.1*
- One yellow status LED
- One green board power LED
- Symbolic debug of complex data types including scope information
- Programming
- Data Gateway Interface: USART, TWI, 4 GPIOs
- Virtual COM port (CDC)
- USB powered
- Supported with application examples in Atmel Software Framework
Atmel-42103-SAM4L8-Xplained-Pro_User-Guide.zip
(10.34 MB)
Atmel-42235-Developing-Extension-Boards-for-the-Xplained-Pro-Evaluation-Kits_AP-.pdf
(256.16 KB)
Atmel-42096-Microcontrollers-Embedded-Debugger_User-Guide (1).pdf
(270.61 KB)
Atmel-42023-ARM-Microcontroller-ATSAM4L-Low-Power-LCD_Datasheet.pdf
(6.84 MB)
Atmel-42103-SAM4L8-Xplained-Pro_User-Guide.pdf
(824.5 KB)
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