2 * Author: Thomas Ingleby <thomas.c.ingleby@intel.com>
3 * Copyright (c) 2014 Intel Corporation.
5 * Permission is hereby granted, free of charge, to any person obtaining
6 * a copy of this software and associated documentation files (the
7 * "Software"), to deal in the Software without restriction, including
8 * without limitation the rights to use, copy, modify, merge, publish,
9 * distribute, sublicense, and/or sell copies of the Software, and to
10 * permit persons to whom the Software is furnished to do so, subject to
11 * the following conditions:
13 * The above copyright notice and this permission notice shall be
14 * included in all copies or substantial portions of the Software.
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
17 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
18 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
19 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
20 * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
21 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
22 * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
34 sig_handler(int signo)
36 if (signo == SIGINT) {
37 printf("closing spi nicely\n");
44 signal(SIGINT, sig_handler);
49 spi = new mraa::Spi(0);
51 uint8_t data[] = {0x00, 100};
54 while (running == 0) {
56 for (i = 90; i < 130; i++) {
58 recv = spi->write(data, 2);
59 printf("Writing -%i",i);
61 printf("RECIVED-%i-%i\n",recv[0],recv[1]);
66 for (i = 130; i > 90; i--) {
68 if (spi->transfer(data, rxBuf, 2) == MRAA_SUCCESS) {
69 printf("Writing -%i",i);
70 printf("RECIVED-%i-%i\n",rxBuf[0],rxBuf[1]);