170bdd104f
Large change that removes the duplicated MIT notice withe a spdx tag Signed-off-by: Thomas Ingleby <thomas.ingleby@intel.com>
70 lines
1.8 KiB
C++
70 lines
1.8 KiB
C++
/*
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* Author: Jon Trulson <jtrulson@ics.com>
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* Copyright (c) 2016 Intel Corporation
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*
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* SPDX-License-Identifier: MIT
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*
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* Example usage: Search and print the found OW device ID recursively.
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*
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*/
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/* standard headers */
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#include <iostream>
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#include <stdlib.h>
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/* mraa headers */
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#include "mraa/common.hpp"
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#include "mraa/uart_ow.hpp"
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int
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main(void)
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{
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mraa::Result status;
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std::string id;
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uint8_t count = 0;
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uint8_t* ptr;
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//! [Interesting]
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mraa::UartOW uart(0);
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// Reset the ow bus and see if anything is present
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if ((status = uart.reset()) == mraa::SUCCESS) {
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std::cout << "Reset succeeded, device(s) detected!" << std::endl;
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} else {
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std::cout << "Reset failed, returned " << int(status) << ". No devices on bus?" << std::endl;
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return EXIT_FAILURE;
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}
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std::cout << "Looking for devices..." << std::endl;
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// start the search from scratch
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id = uart.search(true);
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if (id.empty()) {
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std::cout << "No devices detected." << std::endl;
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return EXIT_FAILURE;
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}
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while (!id.empty()) {
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// hack so we don't need to cast each element of the romcode
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// for printf purposes
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ptr = (uint8_t*) id.data();
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// The first byte (0) is the device type (family) code.
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// The last byte (7) is the rom code CRC value. The
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// intervening bytes are the unique 48 bit device ID.
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std::cout << "Device %02d Type 0x%02x ID %02x%02x%02x%02x%02x%02x CRC 0x%02x" << count << ptr[0]
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<< ptr[6] << ptr[5] << ptr[4] << ptr[3] << ptr[2] << ptr[1] << ptr[7] << std::endl;
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count++;
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// continue the search with start argument set to false
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id = uart.search(false);
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}
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std::cout << "Exiting..." << std::endl;
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//! [Interesting]
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return EXIT_SUCCESS;
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}
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