README.md

Hardware Abstraction Layer for STM32F4 devices in C++

This is a simple port of my HAL written in C, to learn and use C++ more frequently. It's a work in progress and is just me learning new ways to code in Embedded Systems.

Planned features

• Change project to pure Makefile project
• Add more features to the svd2cpp converter
• Add easy to use Register Abstraction
• Add GPIO
• Add UART
• Add I2C
• Add SPI
• Add Timers
• Add ADC
• Add EXTI
• Add RCC configuration
• Add PWR configuration
• Add DMA

Since this is a "work in progress" and I have alot of other projects I will add new features once I have the time to do so.
This kind of HAL is also available in C, so make sure to look at libstm32f4, where I have alot more peripherals already implemented.

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Example Usage

Simple GPIO usage example:

peripheral periph = peripheral::get_instance();
// Enable clock for GPIOA
periph.PA.enable_clock();
// setup PA8 as output
periph.PA[8].make_output();

while (true) {
    // Pull PA8 high
    periph.PA[8] = 1;
    // OR
    periph.PA[8].high();

    // Delay of undefined length
    undef_delay();
    // Pull PA8 low
    periph.PA[8] = 0;
    // OR
    periph.PA[8].low();

    // Delay of undefined length
    undef_delay();
}

You can also just use the registers directly:

using namespace stm32f4::regs;

rcc.AHB1ENR.modify(RCC_AHB1ENR_GPIOAEN);
// Setup PA8 as output
gpioa.MODER.modify(bit[2 * 8]);

while (true) {
    // Pull PA8 high
    gpioa.BSRR.modify(bit[8]);
    // OR
    gpioa.BSRR.modify(bits::bit16);
    undef_delay();

    // Pull PA8 low
    gpioa.BSRR.modify(bit[8 + 16]);
    // OR
    gpioa.BSRR.modify(bits::bit24);
    undef_delay();
}

Contact/Contribution

Hit me up if you want to talk about the project or contribute.

E-Mail: moonxraccoon@protonmail.com
Discord: moonraccoon#4788