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82 lines
2.0 KiB
C
82 lines
2.0 KiB
C
/*
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* defines.h
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*
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* Created on: Dec 12, 2015
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* Author: peter
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*/
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#ifndef GLOBALS_H_
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#define GLOBALS_H_
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#include "radio_config.h"
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#include "TXPowerSettings.h"
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#define MODEL "SEAWAIS_02"
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#define REVISION "0.5.1"
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/*
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* If this is defined, the device transmits low-power carrier on channel 86 (161.925MHz).
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* This is meant to be used for crystal calibration only
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*/
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//#define CALIBRATION_MODE 1
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// Undefine to disable transmission
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#define ENABLE_TX 1
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#ifdef ENABLE_TX
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//#define TX_TEST_MODE
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#endif
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#ifdef CALIBRATION_MODE
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#define TX_POWER_LEVEL PWR_M16
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#else
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#ifdef TX_TEST_MODE
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#define TX_POWER_LEVEL PWR_P16
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#else
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#define TX_POWER_LEVEL PWR_M27
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#endif
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#endif
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#define ENABLE_TERMINAL
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#define OUTPUT_GPS_NMEA
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#define ENABLE_PRINTF2
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// Some AIS messages can occupy 5 time slots (5x256 = 1280). Nothing we care about exceeds 2 slots.
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#define MAX_AIS_RX_PACKET_SIZE 512
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#ifdef TX_TEST_MODE
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// For testing, it's necessary to transmit longer packets for a basic RTL-SDR receiver to not "miss" them.
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#define MAX_AIS_TX_PACKET_SIZE 1280
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#else
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// As a class B transponder, we never transmit anything bigger than 240 bits.
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#define MAX_AIS_TX_PACKET_SIZE 300
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#endif
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// Maximum allowed backlog in TX queue
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#define MAX_TX_PACKETS_IN_QUEUE 4
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// Define this to set BT=0.4 for GMSK (as per ITU spec for AIS). Default is 0.5
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#define USE_BT_04
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// Default interval for message 18 (position report)
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#define DEFAULT_TX_INTERVAL 30
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// Default interval for message 24 A&B (static data report)
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#define MSG_24_TX_INTERVAL 180
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// The spec calls for Class B transmitters to listen for the first 20 bits of each frame before transmitting.
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// It takes the Si4463 a few bits' time to switch from RX to TX, so I arbitrarily picked the 12th bit.
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#define CCA_SLOT_BIT 11
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// Extra debugging using halting assertions
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#define DEV_MODE 1
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#endif /* GLOBALS_H_ */
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