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Espruino

Features⇠

Less than half the size of a business card ( 54mm x 41mm )
STM32F103RCT6 32-bit 72MHz ARM Cortex M3 CPU
256KB of Flash memory, 48KB of RAM
Micro USB connector
Input Voltage Range of 3.6v to 15v
Battery connector (JST PHR-2 2 Pin)
Built-in SD card connector
Red, Green and Blue LEDs
Pads to allow HC-05 Bluetooth modules to be added
0.1" Pin spacing
44 GPIO Pins, capable of: 26 PWM Pins, 16 ADC Pins, 3 USARTs, 2 SPI, 2 I2C and 2 DACs
Prototype area which can be used in many different configurations, for example: Servo Headers, Up to 14x 500mA outputs, 2x .NET Gadgeteer connectors, or NRF24L01+ wireless transceiver modules
Rev 1v4: CE and RoHS certification

Pinout⇠

Hover the mouse over a pin function for more information. Clicking in a function will tell you how to use it in Espruino.

Purple boxes show pins that are used for other functionality on the board. You should avoid using these unless you know that the marked device is not used.
! boxes contain extra information about the pin. Hover your mouse over them to see it.
3.3v boxes mark pins that are not 5v tolerant (they only take inputs from 0 - 3.3v, not 0 - 5v).
3.3 is a 3.3v output from the on-board Voltage regulator.
GND is ground (0v).
VBAT is the battery voltage output (see the Espruino Board Reference).
ADC is an Analog to Digital Converter (for reading analog voltages)
DAC is a Digital to Analog Converter (for creating analog voltages). This is not available on all boards.
PWM is for Pulse Width Modulation. This creates analog voltages from a digital output by sending a series of pulses.
SPI is the 3 wire Serial Peripheral Interface.
USART is a 2 wire peripheral for Serial Data.
I2C is the 2 wire Inter-Integrated Circuit bus.
CAN is for the Controller Area Network. It is not supported by Espruino.

Espruino Board 是http://www.espruino.com 出的这样一种小板子：
Espruino图1

可以用js编程，引脚定义：
Espruino图2

Pins not on connectors

A11 CAN USB PWM
A12 CAN USB
C13 3.3v USB
C14 3.3v OSC RTC
D0 CAN OSC
D1 CAN OSC
D2 SD CARD UART5 RX

详细的看这里：http://www.espruino.com/ReferenceESPRUINOBOARD

而且如果你下载了这个：
下载附件

espruino_1v63.zip
那么——
STM32 (VL/F3/F4) DISCOVERYOn Windows

Go to the ST-Link website: http://www.st.com/internet/evalboard/product/251168.jsp and click 'Design Support', then download and install the 'STM32 ST-LINK utility'.
Extract the archive containing Espruino
Run the 'STM32 ST-LINK Utility'
Click 'File'->'Open File' and choose espruino_1v63_stm32vldiscovery.bin
When asked if you want to program, click 'Yes'
Click 'Program' on the next window