97 lines
2.4 KiB
C
Executable File
97 lines
2.4 KiB
C
Executable File
//------------------------------------------------------------------------------
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// Copyright (C) 2010-2012, Robert Johansson and contributors, Raditex AB
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// All rights reserved.
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//
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// rSCADA
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// http://www.rSCADA.se
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// info@rscada.se
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//
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// Contributors:
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// Large parts of this file was contributed by Stefan Wahren.
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//
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//------------------------------------------------------------------------------
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#include <string.h>
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#include <stdio.h>
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#include <mbus/mbus.h>
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//------------------------------------------------------------------------------
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// Execution starts here:
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//------------------------------------------------------------------------------
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int
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main(int argc, char **argv)
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{
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mbus_handle *handle;
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mbus_frame reply;
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char *device;
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int address, ret;
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long source_baudrate = 9600, target_baudrate;
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if (argc == 4)
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{
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device = argv[1];
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address = atoi(argv[2]);
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target_baudrate = atol(argv[3]);
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}
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else if (argc == 6 && strcmp(argv[1], "-b") == 0)
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{
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source_baudrate = atol(argv[2]);
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device = argv[3];
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address = atoi(argv[4]);
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target_baudrate = atol(argv[5]);
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}
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else
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{
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fprintf(stderr, "usage: %s [-b BAUDRATE] device address target-baudrate\n", argv[0]);
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return 0;
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}
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if ((handle = mbus_context_serial(device)) == NULL)
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{
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fprintf(stderr, "Could not initialize M-Bus context: %s\n", mbus_error_str());
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return 1;
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}
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if (mbus_connect(handle) == -1)
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{
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fprintf(stderr,"Failed to setup connection to M-bus gateway\n");
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return 1;
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}
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if (mbus_serial_set_baudrate(handle, source_baudrate) == -1)
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{
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fprintf(stderr,"Failed to set baud rate.\n");
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return 1;
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}
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if (mbus_send_switch_baudrate_frame(handle, address, target_baudrate) == -1)
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{
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fprintf(stderr,"Failed to send switch baudrate frame: %s\n", mbus_error_str());
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return 1;
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}
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ret = mbus_recv_frame(handle, &reply);
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if (ret == MBUS_RECV_RESULT_TIMEOUT)
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{
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fprintf(stderr,"No reply from device\n");
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return 1;
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}
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else if (mbus_frame_type(&reply) != MBUS_FRAME_TYPE_ACK)
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{
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fprintf(stderr,"Unknown reply:\n");
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mbus_frame_print(&reply);
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}
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else
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{
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printf("Switched baud rate of device to %ld\n", target_baudrate);
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}
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mbus_disconnect(handle);
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mbus_context_free(handle);
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return 0;
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}
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