170bdd104f
Large change that removes the duplicated MIT notice withe a spdx tag Signed-off-by: Thomas Ingleby <thomas.ingleby@intel.com>
77 lines
1.5 KiB
C
77 lines
1.5 KiB
C
/*
|
|
* Author: Thomas Ingleby <thomas.c.ingleby@intel.com>
|
|
* Author: Brendan Le Foll <brendan.le.foll@intel.com>
|
|
* Contributors: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
|
|
* Copyright (c) 2014, 2015 Intel Corporation.
|
|
*
|
|
* SPDX-License-Identifier: MIT
|
|
*
|
|
* Example usage: Prints "Hello Mraa!" recursively. Press Ctrl+C to exit
|
|
*
|
|
*/
|
|
|
|
/* standard headers */
|
|
#include <signal.h>
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <unistd.h>
|
|
|
|
/* mraa header */
|
|
#include "mraa/uart.h"
|
|
|
|
#define UART 0
|
|
|
|
volatile sig_atomic_t flag = 1;
|
|
|
|
void
|
|
sig_handler(int signum)
|
|
{
|
|
if (signum == SIGINT) {
|
|
fprintf(stdout, "Exiting...\n");
|
|
flag = 0;
|
|
}
|
|
}
|
|
|
|
int
|
|
main(int argc, char** argv)
|
|
{
|
|
mraa_uart_context uart;
|
|
char buffer[] = "Hello Mraa!";
|
|
|
|
/* install signal handler */
|
|
signal(SIGINT, sig_handler);
|
|
|
|
/* initialize mraa for the platform (not needed most of the times) */
|
|
mraa_init();
|
|
|
|
//! [Interesting]
|
|
/* initialize UART */
|
|
uart = mraa_uart_init(UART);
|
|
if (uart == NULL) {
|
|
fprintf(stderr, "Failed to initialize UART\n");
|
|
goto err_exit;
|
|
}
|
|
|
|
while (flag) {
|
|
/* send data through UART */
|
|
mraa_uart_write(uart, buffer, sizeof(buffer));
|
|
|
|
sleep(1);
|
|
}
|
|
|
|
/* stop UART */
|
|
mraa_uart_stop(uart);
|
|
|
|
//! [Interesting]
|
|
/* deinitialize mraa for the platform (not needed most of the times) */
|
|
mraa_deinit();
|
|
|
|
return EXIT_SUCCESS;
|
|
|
|
err_exit:
|
|
/* deinitialize mraa for the platform (not needed most of the times) */
|
|
mraa_deinit();
|
|
|
|
return EXIT_FAILURE;
|
|
}
|