upm/examples/c/md.c
Mihai Tudor Panu 89d5de43e0 license: update to SPDX style license text throughout
Signed-off-by: Mihai Tudor Panu <mihai.tudor.panu@intel.com>
2020-03-05 15:13:36 -08:00

52 lines
1.1 KiB
C

/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2016 Intel Corporation.
*
* This program and the accompanying materials are made available under the
* terms of the The MIT License which is available at
* https://opensource.org/licenses/MIT.
*
* SPDX-License-Identifier: MIT
*/
#include <unistd.h>
#include <stdio.h>
#include <md.h>
#include <upm_utilities.h>
int main(int argc, char **argv)
{
//! [Interesting]
// Instantiate an I2C Motor Driver on I2C bus 0
md_context motors = md_init(MD_I2C_BUS, MD_DEFAULT_I2C_ADDR);
if (!motors)
{
printf("md_init() failed\n");
return 1;
}
// set direction to CW and set speed to 50%
printf("Spin M1 and M2 at half speed for 3 seconds\n");
md_set_motor_directions(motors, MD_DIR_CW, MD_DIR_CW);
md_set_motor_speeds(motors, 127, 127);
upm_delay(3);
// counter clockwise
printf("Reversing M1 and M2 for 3 seconds\n");
md_set_motor_directions(motors, MD_DIR_CCW, MD_DIR_CCW);
upm_delay(3);
printf("Stopping motors\n");
md_set_motor_speeds(motors, 0, 0);
printf("Exiting...\n");
md_close(motors);
//! [Interesting]
return 0;
}