CSE477 / swimate_v2

Swimate V2 without RTOS code

Dependencies:   Adafruit_GFX_128x64 DS3231 PinDetect SDFileSystem USBDevice mbed RealtimeMath MODSERIAL

comms.h.orig@24:f2503d1256ad, 2014-06-09 (annotated)

Committer:
ellingjp
Date:
Mon Jun 09 04:55:16 2014 +0000
Revision:
24:f2503d1256ad
Parent:
22:9350752f5414 
Using RTC filenames

Who changed what in which revision?

UserRevisionLine numberNew contents of line
ellingjp 22:9350752f5414 1 #ifndef _COMMS_H
ellingjp 22:9350752f5414 2 #define _COMMS_H
ellingjp 22:9350752f5414 3
ellingjp 22:9350752f5414 4 #include "mbed.h"
ellingjp 22:9350752f5414 5 #include "MODSERIAL.h"
ellingjp 22:9350752f5414 6 #include <limits.h>
ellingjp 22:9350752f5414 7
ellingjp 22:9350752f5414 8 class Packet; // forward declaration
ellingjp 22:9350752f5414 9
ellingjp 22:9350752f5414 10 class Comms {
ellingjp 22:9350752f5414 11 public:
ellingjp 22:9350752f5414 12 Comms() : bt(P0_19, P0_18) { bt.baud(115200); }
ellingjp 22:9350752f5414 13
ellingjp 22:9350752f5414 14 int receivePacket(Packet **p, int timeout);
ellingjp 22:9350752f5414 15 void sendPacket(Packet *p);
ellingjp 22:9350752f5414 16
ellingjp 22:9350752f5414 17 private:
ellingjp 22:9350752f5414 18 Timer timer;
ellingjp 22:9350752f5414 19 void sendByte(uint8_t byte);
ellingjp 22:9350752f5414 20 void sendBytes(uint8_t *bytes, int nElms);
ellingjp 22:9350752f5414 21 bool getByte(uint8_t *c, int timeout = INT_MAX);
ellingjp 22:9350752f5414 22 bool getBytes(uint8_t *buf, int nElms, int timeout = INT_MAX);
ellingjp 22:9350752f5414 23 MODSERIAL bt; // tx, rx
ellingjp 22:9350752f5414 24 };
ellingjp 22:9350752f5414 25
ellingjp 22:9350752f5414 26 class Packet {
ellingjp 22:9350752f5414 27 public:
ellingjp 22:9350752f5414 28 static Packet *create(uint8_t cmd, uint16_t packetNumber, uint16_t dataLength, uint8_t *data);
ellingjp 22:9350752f5414 29 static Packet *createAndVerify(uint8_t cmd, uint16_t packetNumber, uint16_t dataLength, uint8_t *data, uint16_t checkSum);
ellingjp 22:9350752f5414 30 ~Packet();
ellingjp 22:9350752f5414 31
ellingjp 22:9350752f5414 32 uint8_t cmd;
ellingjp 22:9350752f5414 33 uint16_t packetNumber;
ellingjp 22:9350752f5414 34 uint16_t dataLength;
ellingjp 22:9350752f5414 35 uint8_t *data;
ellingjp 22:9350752f5414 36 uint16_t checkSum;
ellingjp 22:9350752f5414 37
ellingjp 22:9350752f5414 38 static const int HEADER_SIZE;
ellingjp 22:9350752f5414 39 private:
ellingjp 22:9350752f5414 40 Packet(uint8_t cmd, uint16_t packetNumber, uint16_t dataLength, uint8_t *data);
ellingjp 22:9350752f5414 41 };
ellingjp 22:9350752f5414 42
ellingjp 22:9350752f5414 43 #endif // _COMMS_H