Fast GPIO library

Minimum calculations at run time
Maximum calculations at and before compile time
C++

Project directories and files

./bash/

GPIO scripts

./src/ (cpu || board) / * .h

Board and CPU definitions

./src/ (cpu || board) / * / *_generator.cpp

Definitions generator for each CPU and Board
(calculations before compile time)

./src/ (cpu || board) / * / *_example.hpp

Example usung for each CPU and Board

./src/main.cpp

Example of using GPIO for all CPUs and Boards

./src/creator/creator.cpp

Template for new CPUs and boards

Available CPUs

Allwinner H2+ (Datasheet) (Example)
Broadcom BCM2835 (Datasheet) (Example)
Texas Instruments AM335x (Manual)

Available boards

BananaPi P2 Zero (BPI-P2 Zero) (Datasheet) (Example)
BeagleBone Black (Datasheet)
Raspberry Pi Zero rev 1.3 (Datasheet) (Example)

Example project

https://github.com/cortl0/device

Build

make
make clean
make install
make uninstall
Qt build

Usage

#include "board/bpi_p2_zero/bpi_p2_zero.h"

int main()
{
    gpio::cpu _cpu(BASE_ADDRESS_GPIO);
    
    _cpu.write_bits(CON2_P10_CFG_REG, CON2_P10_CFG_BIT, P_SELECT_INPUT, P_SELECT_LENGTH);
    _cpu.write_bits(CON2_P10_PUL_REG, CON2_P10_PUL_BIT, P_PULL_DOWN, P_PULL_LENGTH);
    bool state_CON2_P10 = _cpu.read_bit(CON2_P10_DAT_REG, CON2_P10_DAT_BIT);
    
    _cpu.write_bits(CON2_P07_CFG_REG, CON2_P07_CFG_BIT, P_SELECT_OUTPUT, P_SELECT_LENGTH);
    bool state_CON2_P07 = HIGH;
    _cpu.write_bit (CON2_P07_DAT_REG, CON2_P07_DAT_BIT, state_CON2_P07);
    
    return 0;
}

Author

Ilya Shishkin
mailto:cortl@8iter.ru

GitHub reference

https://github.com/cortl0/gpio

License

This project is licensed under the GPL v3.0 - see the LICENSE file for details