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/*
* Author: Thomas Ingleby <thomas.c.ingleby@intel.com>
* Copyright (c) 2014 Intel Corporation.
*
* Permission is hereby granted, free of charge, to any person obtaining
* a copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sublicense, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*/
#include "mraa.h"
#include <unistd.h>
#include <stdint.h>
int
main(int argc, char** argv)
{
mraa_init();
//! [Interesting]
mraa_spi_context spi;
spi = mraa_spi_init(0);
unsigned int response = 0;
printf("Hello, SPI initialised\n");
uint8_t data[] = { 0x00, 100 };
uint8_t* recv;
while (1) {
int i;
for (i = 90; i < 130; i++) {
data[1] = i;
recv = mraa_spi_write_buf(spi, data, 2);
printf("Writing -%i", i);
printf("RECIVED-%i-%i\n", recv[0], recv[1]);
usleep(100000);
}
for (i = 130; i > 90; i--) {
data[1] = i;
recv = mraa_spi_write_buf(spi, data, 2);
printf("Writing -%i", i);
printf("RECIVED-%i-%i\n", recv[0], recv[1]);
usleep(100000);
}
}
//! [Interesting]
}
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