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This requires a new MRAA with UART sendbreak support. Signed-off-by: Jon Trulson <jtrulson@ics.com>
140 lines
4.1 KiB
C
140 lines
4.1 KiB
C
/*
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* Author: Jon Trulson <jtrulson@ics.com>
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* Copyright (c) 2017 Intel Corporation.
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*
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* Permission is hereby granted, free of charge, to any person obtaining
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* a copy of this software and associated documentation files (the
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* "Software"), to deal in the Software without restriction, including
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* without limitation the rights to use, copy, modify, merge, publish,
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* distribute, sublicense, and/or sell copies of the Software, and to
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* permit persons to whom the Software is furnished to do so, subject to
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* the following conditions:
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*
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* The above copyright notice and this permission notice shall be
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* included in all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
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* LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
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* OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
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* WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include <unistd.h>
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#include <stdio.h>
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#include <string.h>
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#include <signal.h>
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#include "rn2903.h"
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#include "upm_utilities.h"
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#include "upm_platform.h"
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bool shouldRun = true;
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void sig_handler(int signo)
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{
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if (signo == SIGINT)
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shouldRun = false;
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}
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#if defined(UPM_PLATFORM_ZEPHYR) && !defined(CONFIG_STDOUT_CONSOLE)
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# define printf printk
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#endif
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int main(int argc, char **argv)
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{
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//! [Interesting]
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char *defaultDev = "/dev/ttyUSB0";
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if (argc > 1)
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defaultDev = argv[1];
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printf("Using device: %s\n", defaultDev);
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// Instantiate a RN2903 sensor on defaultDev at 57600 baud.
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#if defined(UPM_PLATFORM_ZEPHYR)
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rn2903_context sensor = rn2903_init(0, RN2903_DEFAULT_BAUDRATE);
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#else
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rn2903_context sensor = rn2903_init_tty(defaultDev,
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RN2903_DEFAULT_BAUDRATE);
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#endif
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// To use an internal UART understood by MRAA, use the following
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// to inititialize rather than the above, which by default uses a
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// tty path.
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//
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// rn2903_context sensor = rn2903_init(0, RN2903_DEFAULT_BAUDRATE);
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if (!sensor)
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{
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printf("rn2903_init_tty() failed.\n");
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return 1;
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}
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// enable debugging
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// rn2903_set_debug(sensor, true);
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// get version
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if (rn2903_command(sensor, "sys get ver"))
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{
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printf("Failed to retrieve device version string\n");
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rn2903_close(sensor);
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return 1;
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}
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printf("Firmware version: %s\n", rn2903_get_response(sensor));
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printf("Hardware EUI: %s\n", rn2903_get_hardware_eui(sensor));
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// For this example, we will just try transmitting a packet over
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// LoRa. We reset the device to defaults, and we do not make any
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// adjustments to the radio configuration. You will probably want
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// to do so for a real life application.
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// The first thing to do is to suspend the LoRaWAN stack on the device.
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if (rn2903_mac_pause(sensor))
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{
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printf("Failed to pause the LoRaWAN stack\n");
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rn2903_close(sensor);
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return 1;
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}
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// the default radio watchdog timer is set for 15 seconds, so we
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// will send a packet every 10 seconds. In reality, local
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// restrictions limit the amount of time on the air, so in a real
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// implementation, you would not want to send packets that
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// frequently.
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int count = 0;
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while (shouldRun)
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{
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char pingbuf[32] = {};
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snprintf(pingbuf, 32, "Ping %d", count++);
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// All payloads must be hex encoded
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const char *payload = rn2903_to_hex(sensor, pingbuf, strlen(pingbuf));
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printf("Transmitting a packet, data: '%s' -> hex: '%s'\n",
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pingbuf, payload);
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RN2903_RESPONSE_T rv;
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rv = rn2903_radio_tx(sensor, payload);
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if (rv == RN2903_RESPONSE_OK)
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printf("Transmit successful.\n");
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else
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printf("Transmit failed with code %d.\n", rv);
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printf("\n");
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upm_delay(10);
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}
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printf("Exiting\n");
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rn2903_close(sensor);
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//! [Interesting]
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return 0;
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}
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