upm/examples/c/my9221.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

77 lines
1.6 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 <signal.h>
#include <upm_utilities.h>
#include <my9221.h>
int shouldRun = true;
void sig_handler(int signo)
{
if (signo == SIGINT)
shouldRun = false;
}
int main ()
{
signal(SIGINT, sig_handler);
//! [Interesting]
// Instantiate a GroveLEDBar, we use D8 for the data, and D9 for the
// clock. We only use a single instance.
my9221_context leds = my9221_init(8, 9, 1);
if (!leds)
{
printf("my9221_init() failed\n");
return 1;
}
while (shouldRun)
{
// count up
printf("Counting up: ");
for (int i=0; i<my9221_get_max_leds(leds); i++)
{
printf("%d ", i);
my9221_clear_all(leds);
my9221_set_led(leds, i, true);
upm_delay_ms(100);
}
printf("\n");
upm_delay_ms(100);
// count down
printf("Counting down: ");
for (int i=my9221_get_max_leds(leds) - 1; i>=0; i--)
{
printf("%d ", i);
my9221_clear_all(leds);
my9221_set_led(leds, i, true);
upm_delay_ms(100);
}
printf("\n");
upm_delay_ms(100);
}
printf("Exiting...\n");
my9221_close(leds);
//! [Interesting]
return 0;
}