al w / ARQ-radio

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arq.h@0:8e06c9b8b7f6, 2021-05-25 (annotated)

Committer:
quagga
Date:
Tue May 25 17:45:26 2021 +0000
Revision:
0:8e06c9b8b7f6
arq radio class; todo- crc check on message

Who changed what in which revision?

UserRevisionLine numberNew contents of line
quagga 0:8e06c9b8b7f6 1 #include"MicroBit.h"
quagga 0:8e06c9b8b7f6 2 //#define ARQ_DEBUG
quagga 0:8e06c9b8b7f6 3
quagga 0:8e06c9b8b7f6 4 #define ARQ_ID 4000
quagga 0:8e06c9b8b7f6 5 #define ARQ_MSG_RECVD_EVT 1
quagga 0:8e06c9b8b7f6 6 #define ARQ_MSG_SEND_FAIL 2
quagga 0:8e06c9b8b7f6 7 #define ARQ_MSG_ACK_RECVD 3
quagga 0:8e06c9b8b7f6 8 #define ARQ_POW_RECVD_EVT 4
quagga 0:8e06c9b8b7f6 9 #define ARQ_POW_SEND_FAIL 5
quagga 0:8e06c9b8b7f6 10 #define ARQ_POW_ACK_RECVD 6
quagga 0:8e06c9b8b7f6 11
quagga 0:8e06c9b8b7f6 12 #ifndef ARQ_H
quagga 0:8e06c9b8b7f6 13 #define ARQ_H
quagga 0:8e06c9b8b7f6 14
quagga 0:8e06c9b8b7f6 15 class Arq
quagga 0:8e06c9b8b7f6 16 {
quagga 0:8e06c9b8b7f6 17 public:
quagga 0:8e06c9b8b7f6 18 unsigned char power; //power of transmitter
quagga 0:8e06c9b8b7f6 19 unsigned char received_power;
quagga 0:8e06c9b8b7f6 20 unsigned int timeout; //time after send with no ACK before resend in microseconds CURRENTLY IRRELEVANT!!
quagga 0:8e06c9b8b7f6 21 unsigned int maxtries; //max number of attempts at sending before give up :( (default 10)
quagga 0:8e06c9b8b7f6 22 unsigned int mintries; //min number of attempts allowable (default 1)
quagga 0:8e06c9b8b7f6 23 unsigned int tries; //number of attempts at last go
quagga 0:8e06c9b8b7f6 24 unsigned int rssi; //rssi from last ACK received i.e. rssi reported by receiver
quagga 0:8e06c9b8b7f6 25 unsigned int min_rssi; //rssi below which power can be reduced (default 70)
quagga 0:8e06c9b8b7f6 26
quagga 0:8e06c9b8b7f6 27 MicroBit *uBit;
quagga 0:8e06c9b8b7f6 28 PacketBuffer packet;
quagga 0:8e06c9b8b7f6 29
quagga 0:8e06c9b8b7f6 30 Arq(MicroBit *bit);
quagga 0:8e06c9b8b7f6 31 ~Arq(){};
quagga 0:8e06c9b8b7f6 32
quagga 0:8e06c9b8b7f6 33 void off();
quagga 0:8e06c9b8b7f6 34 void receive();
quagga 0:8e06c9b8b7f6 35 void listen(MicroBitEvent e);
quagga 0:8e06c9b8b7f6 36 void send(PacketBuffer packet);
quagga 0:8e06c9b8b7f6 37
quagga 0:8e06c9b8b7f6 38 void incPower();
quagga 0:8e06c9b8b7f6 39 void decPower();
quagga 0:8e06c9b8b7f6 40 };
quagga 0:8e06c9b8b7f6 41
quagga 0:8e06c9b8b7f6 42 #endif
quagga 0:8e06c9b8b7f6 43
quagga 0:8e06c9b8b7f6 44 //1st byte ACK,POWER_TEST or MESSAGE if ACK, RSSI of RECEIVED MESSAGE ALSO
quagga 0:8e06c9b8b7f6 45 //128 64 32 16 8 4 2 1
quagga 0:8e06c9b8b7f6 46 // 1 1 1 0 0 0 0 0 - ACK -98 RSSI
quagga 0:8e06c9b8b7f6 47 // 1 0 1 1 0 0 0 1 - ACK -49 RSSI
quagga 0:8e06c9b8b7f6 48 // 0 0 0 0 0 0 0 0 - POWER_TEST
quagga 0:8e06c9b8b7f6 49 // 0 1 1 1 1 1 1 1 - MESSAGE
quagga 0:8e06c9b8b7f6 50
quagga 0:8e06c9b8b7f6 51 //if POWER_TEST 2nd byte is power
quagga 0:8e06c9b8b7f6 52 //if MESSAGE 2nd byte is start of message packet[1]
quagga 0:8e06c9b8b7f6 53
quagga 0:8e06c9b8b7f6 54