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mraa/examples/c++/UartOW.cpp
Alex Tereschenko 32340f6819 examples: misc static code analysis fixes
Signed-off-by: Alex Tereschenko <alext.mkrs@gmail.com>
Signed-off-by: Brendan Le Foll <brendan.le.foll@intel.com>
2017-06-06 15:52:48 +02:00

83 lines
2.7 KiB
C++

/*
* Author: Jon Trulson <jtrulson@ics.com>
* Copyright (c) 2016 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 "stdio.h"
#include "iostream"
//! [Interesting]
#include "uart_ow.hpp"
int
main(int argc, char** argv)
{
mraa::UartOW* uart = new mraa::UartOW(0);
// Reset the ow bus and see if anything is present
mraa::Result rv;
if ((rv = uart->reset()) == mraa::SUCCESS) {
std::cout << "Reset succeeded, device(s) detected!" << std::endl;
} else {
std::cout << "Reset failed, returned " << int(rv) << ". No devices on bus?" << std::endl;
delete uart;
return 1;
}
std::cout << "Looking for devices..." << std::endl;
;
uint8_t count = 0;
// start the search from scratch
std::string id = uart->search(true);
if (id.empty()) {
std::cout << "No devices detected." << std::endl;
delete uart;
return 1;
}
while (!id.empty()) {
// hack so we don't need to cast each element of the romcode
// for printf purposes
uint8_t* ptr = (uint8_t*) id.data();
// The first byte (0) is the device type (family) code.
// The last byte (7) is the rom code CRC value. The
// intervening bytes are the unique 48 bit device ID.
printf("Device %02d Type 0x%02x ID %02x%02x%02x%02x%02x%02x CRC 0x%02x\n", count, ptr[0],
ptr[6], ptr[5], ptr[4], ptr[3], ptr[2], ptr[1], ptr[7]);
count++;
// continue the search with start argument set to false
id = uart->search(false);
}
std::cout << "Exiting..." << std::endl;
delete uart;
return 0;
}
//! [Interesting]