This is a C++ framework for STM32F4 chips, based on ST-provided stm32f4xx.h

The frameworks provides a low-level abstraction of typical hardware components such as DMA channels, Timers, GPIOs, Interrupts, ADCs, and Buses. This low-level interface is located in the plat-inc and plat-stm folders in the Platform namespace.

On top of this abstraction layer we also have a series of higher level drivers which implement the protocol expected by the device. Examples are the HBridge driver, i2c compass, lidar, ESP8266 wifi serial bridge...

The folders are (most of the time) organized as follow:

• plat-* contain low level drivers. There is plat-unix which is are just stubs, and plat-stm with actual code. plat-inc are the matching headers. The philosphy behind them is to be a close match to actual STM32F4 registers. It hides the access to RCC clocks though, and there are some helper functions.

• lib contain higher level drivers. They are for components external to the STM32F4 itself.

Supported drivers:

• AX-12 (one half-duplex wire, three wires, En + Tx + Rx)
• Bluetooth
• Three wires Half H-Bridge (PWM + EnA + EnB)
• HD44780-like lcd
• WS82(1112b)
• Neato XV11 Lidar

Supported STM32F4 function:

• Adc (only one shot, no DMA)
• DMA
• EXTI
• GPIO
• NVIC
• SPI
• Timer
• Uart
• UsbSerial
• Watchdog