/* * Author: Houman Brinjcargorabi * Copyright (c) 2016 Intel Corporation. * * SPDX-License-Identifier: MIT * * Example usage: Demonstrates how to initialize and close different * peripherals */ /* standard headers */ #include #include #include /* mraa header */ #include "mraa.h" int main() { // GPIO-PIN mraa_gpio_context gpio = (mraa_gpio_context) init_io("gpio-1"); // GPIO-RAW-RAWPIN mraa_gpio_context gpioraw = (mraa_gpio_context) init_io("gpio-raw-131"); // AIO-PIN mraa_aio_context aio = (mraa_aio_context) init_io("aio-0"); // PWM-PIN mraa_pwm_context pwm = (mraa_pwm_context) init_io("pwm-6"); // PWM-RAW-CHIPID-PIN mraa_pwm_context pwmraw = (mraa_pwm_context) init_io("pwm-raw-0,1"); // UART-INDEX: the index is the one represented internally in the uart_dev array mraa_uart_context uart = (mraa_uart_context) init_io("uart-1"); // UART-RAW-PATH mraa_uart_context uartraw = (mraa_uart_context) init_io("uart-raw-/dev/ttyS0"); // SPI-INDEX: same as UART mraa_spi_context spi = (mraa_spi_context) init_io("spi-0"); // SPI-RAW-BUS-CS: USED to open and use /dev/spidev. mraa_spi_context spiraw = (mraa_spi_context) init_io("spi-raw-0-1"); // I2C-INDEX: same as UART mraa_i2c_context i2c = (mraa_i2c_context) init_io("i2c-0"); // I2C-RAW-BUS mraa_i2c_context i2craw = (mraa_i2c_context) init_io("i2c-raw-0"); // FREE STUFF mraa_gpio_close(gpio); mraa_gpio_close(gpioraw); mraa_aio_close(aio); mraa_pwm_close(pwm); mraa_pwm_close(pwmraw); mraa_uart_close(uart); mraa_uart_close(uartraw); mraa_spi_close(spi); mraa_spi_close(spiraw); mraa_i2c_close(i2c); mraa_i2c_close(i2craw); }