Leaf Maple (
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The Leaf Maple is a microcontroller board based on the STM32F103RB microprocessor. The Maple runs at a maximum of 72 MHz, has 39 digital input/output pins, 16 analog inputs, native full speed USB, 3 USARTs (hardware serial ports), integrated SPI/I2C support, a power jack, and a reset button. Maple is programmable over USB via our provided DFU bootloader, no extra hardware required! Users can also program the onboard program flash via external JTAG interface. Maple offers security support for read/write protected addresses, as well as User and Handler processor modes. It has a real-time sysTick, useful for a real time OS or any timing senstitive applications. 6 advanced interrupt timers will help you here as well. Maple can be powered via USB, a wall adapter, or it can run off of a rechargeable lipo battery (see below for more info). The Maple is compatible with shields designed for the Arduino Duemilanove or Diecimila.
Take care of this notice :
After refering to enough components datasheet , we find out that the max working voltage of mcp1700 which the official design use is 6 V , so we think that the max voltage 12 V from the maple official designe is too high.
And we think that silk-screen 7 to 18 V input voltage on the the board is wrong, although we can use 12 V power supply and never has met problems, but we suggest that it would be beeter that please don’t use input power supply higher than 6 V.
Maple is a great way to get started with an advanced 32 bit-processor that, until now, has principally lived in the commercial domain. Take your projects to the next level with Maple’s fast clock, sophisticated interrupt architecture, and loads of built-in peripherals.
Programming: See also Maple Development Environment documentation
Maple can be programmed using an Arduino-style, sketch-based programming environment, which is open-source and can be downloaded online at our website. The Cortex-M3 on Maple comes pre-programmed with a boot-loader – allowing users to upload new code onto it usin
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