fix lcd | change to simplest protocol | fix packet
This commit is contained in:
parent
90529c814f
commit
fb33a450e0
37
lcd.h
37
lcd.h
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@ -11,6 +11,7 @@
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uint8_t rows, cols;
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char* buffer = NULL;
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public:
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LCDWrapper(uint8_t addr, uint8_t cols, uint8_t rows, uint8_t charsize=LCD_5x8DOTS) : LiquidCrystal_I2C(addr,cols,rows,charsize) {
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this->cols = cols;
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@ -22,20 +23,6 @@
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LiquidCrystal_I2C::backlight();
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}
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void printf(const char *fmt, ...){
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buffer = (char*) malloc( BUFSIZE * sizeof(char*));
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buffer[0] = 0;
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va_list ap;
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va_start(ap, fmt);
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int size = vsnprintf(buffer, BUFSIZE, fmt, ap);
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va_end(ap);
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if( size < 0 || size > BUFSIZE ){ free(buffer); return; }
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LiquidCrystal_I2C::print(buffer);
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free(buffer);
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}
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void printfn(const uint8_t line, const char *fmt, ...){
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buffer = (char*) malloc( BUFSIZE * sizeof(char*));
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buffer[0] = 0;
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@ -44,7 +31,7 @@
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va_start(ap, fmt);
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int size = vsnprintf(buffer, BUFSIZE, fmt, ap);
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va_end(ap);
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if( size < 0 || size > BUFSIZE ){ free(buffer); return; }
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if( size < 0 || size >= BUFSIZE ){ free(buffer); return; }
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LiquidCrystal_I2C::setCursor(0, line);
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LiquidCrystal_I2C::print(buffer);
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@ -59,7 +46,9 @@
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va_start(ap, fmt);
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int size = vsnprintf(buffer, BUFSIZE, fmt, ap);
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va_end(ap);
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if( size < 0 || size > BUFSIZE ){ free(buffer); return; }
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buffer[BUFSIZE-1] = 0;
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if( size < 0 || size >= BUFSIZE ){ free(buffer); return; }
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LiquidCrystal_I2C::setCursor(0,line);
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LiquidCrystal_I2C::print(buffer);
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@ -67,12 +56,26 @@
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for( uint8_t offset = 1 ; offset <= size-cols ; offset++ ){
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delay(200);
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LiquidCrystal_I2C::setCursor(0,line);
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LiquidCrystal_I2C::print(buffer+offset);
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}
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free(buffer);
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}
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protected:
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void printf(const char *fmt, ...) {
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buffer = (char*) malloc( BUFSIZE * sizeof(char*));
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buffer[0] = 0;
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va_list ap;
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va_start(ap, fmt);
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int size = vsnprintf(buffer, BUFSIZE, fmt, ap);
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va_end(ap);
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if( size < 0 || size >= BUFSIZE ){ free(buffer); return; }
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LiquidCrystal_I2C::print(buffer);
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free(buffer);
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}
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};
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#endif
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@ -20,10 +20,9 @@ void setup() {
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Serial.println("+ ready");
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screen.begin();
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screen.printf("[ node ready ]");
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screen.printfn(0, "[ node ready ]");
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xbee.begin(38400);
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time = millis();
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}
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@ -35,7 +34,6 @@ void loop() {
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send_data();
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}
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/* [2] Listen for incoming data */
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if( xbee.receive(recv) != XBWRECV_OK )
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return;
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@ -43,11 +41,11 @@ void loop() {
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uint8_t opcode = recv.getOpcode();
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// 1. manage discover request
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if( opcode == 0 )
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if( opcode == OPCODE_DISCOVER )
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return manage_discover();
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// 2. manage message data
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else if( opcode == 1 )
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else if( opcode == OPCODE_MESSAGE )
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return manage_message();
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@ -56,21 +54,19 @@ void loop() {
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void send_data(){
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Serial.println(" -> message");
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// 1. prepare message
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send.setOpcode(1);
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send.setOpcode(OPCODE_MESSAGE);
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send.setSender(SENDERID);
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send.setDist(dist);
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send.setTTL(MESSAGE_TTL);
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uint8_t data[32] = {0};
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char data[64] = {0};
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strcpy(data, "https://git.xdrm.io");
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Serial.print("'");
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Serial.print( (char*) data);
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Serial.println("'");
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send.setData(data, strlen(data));
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send.setSender(SENDERID);
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send.setData(data);
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// 2. debug
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screen.clear();
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screen.printfn(0, "msg[%3d/%3d] %3d", send.getDist(), send.getTTL(), send.getSize());
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screen.printfn_overflow(1, "%s", send.getData());
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screen.printfn_overflow(1, "%s", (char*) send.getData());
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delay(1000);
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// 3. send
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xbee.broadcast(send);
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@ -79,13 +75,14 @@ void send_data(){
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void manage_discover(){
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Serial.println(" <- discover");
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// security
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if( recv.getDist() == 0 && recv.getSender() != SENDERID )
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return;
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Serial.print(" <- discover[ ");
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Serial.print(recv.getDist());
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Serial.print(" / ");
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Serial.print(recv.getWave());
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Serial.println(" ]");
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screen.clear();
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screen.printfn(0, "dsc[%3d] %3d/%3d", recv.getSender(), recv.getDist(), recv.getWave());
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screen.printfn(0, "dsc[ %3d / %3d ]", recv.getDist(), recv.getWave());
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// ignore if same wave
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if( recv.getWave() == wave_id ){
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@ -98,33 +95,44 @@ void manage_discover(){
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dist = recv.getDist()+1;
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// propagate wave
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send.setOpcode(0);
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send.setOpcode(OPCODE_DISCOVER);
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send.setWave(wave_id);
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send.setDist(dist);
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send.setSender(SENDERID);
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screen.printfn(1, "dsc[%3d] %3d/%3d", send.getSender(), send.getDist(), send.getWave());
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screen.printfn(1, "dsc[ %3d / %3d ]", send.getDist(), send.getWave());
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xbee.broadcast(send);
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}
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void manage_message(){
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Serial.println(" <- message");
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if( recv.getTTL() <= 0 )
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return;
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Serial.print(" <- message[");
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Serial.print(recv.getDist());
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Serial.print("/");
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Serial.print(recv.getTTL());
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Serial.print("] ");
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Serial.print(recv.getSize());
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Serial.print(" '");
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Serial.print((char*) recv.getData());
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Serial.println("'");
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screen.clear();
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screen.printfn(0, "msg[%3d/%3d] %3d", recv.getDist(), recv.getTTL(), recv.getSize());
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delay(500);
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screen.printfn_overflow(0, "%s", recv.getData());
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screen.printfn_overflow(1, "%s", (char*) recv.getData());
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delay(1000);
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// ignore
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if( recv.getTTL() <= 0 || recv.getDist() > dist ){
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if( recv.getDist() > dist ){
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screen.printfn(1, "x ");
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return;
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}
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// propagation
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send.setOpcode(1);
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send.setOpcode(OPCODE_MESSAGE);
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send.setTTL(recv.getTTL()-1);
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send.setDist(dist);
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send.setData(recv.getData(), recv.getSize());
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send.setData(recv.getData());
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screen.printfn(1, "msg[%3d/%3d] %3d", send.getDist(), send.getTTL(), send.getSize());
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xbee.broadcast(send);
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78
packet.cpp
78
packet.cpp
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@ -1,10 +1,12 @@
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#include "packet.h"
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Packet::Packet(){
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msg.data = malloc(1 * sizeof(char));
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}
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/* PUBLIC
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----------------------------------------*/
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// builds a packet from raw data and returns the error code
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uint8_t Packet::read(uint8_t buf[], const size_t size){
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uint8_t Packet::read(uint8_t* buf, const size_t size){
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// 1. fail on invalid size
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if( size < 1 ) return PKTREAD_EMPTY;
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if( size > PROTO_SIZE ) return PKTREAD_OVERFLOW;
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@ -18,7 +20,7 @@ uint8_t Packet::read(uint8_t buf[], const size_t size){
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};
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// writes the binary representation of the packet
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size_t Packet::write(uint8_t buf[]){
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size_t Packet::write(uint8_t* buf){
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if( opcode == 0 )
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return write_discover(buf);
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@ -33,8 +35,8 @@ void Packet::setOpcode(uint8_t value) { opcode = value; dsc.opcode = value; msg.
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uint8_t Packet::getWave() { return dsc.wave; }
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void Packet::setWave(uint8_t value) { dsc.wave = value; }
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uint8_t Packet::getSender() { return (opcode == 0) ? dsc.sender : msg.sender; }
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void Packet::setSender(uint8_t value) { if(opcode == 0) dsc.sender = value; else msg.sender = value; }
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uint8_t Packet::getSender() { return msg.sender; }
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void Packet::setSender(uint8_t value) { msg.sender = value; }
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uint8_t Packet::getDist() { return (opcode == 0) ? dsc.dist : msg.dist; }
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void Packet::setDist(uint8_t value) { if(opcode == 0) dsc.dist = value; else msg.dist = value; }
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@ -45,13 +47,21 @@ void Packet::setTTL(uint8_t value) { msg.ttl = value; }
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uint8_t Packet::getSize() { return msg.size; }
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uint8_t* Packet::getData(){ return msg.data; }
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void Packet::setData(uint8_t *buffer, uint8_t size) { memcpy(msg.data, buffer, size); msg.size = size; }
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void Packet::setData(uint8_t *buffer) {
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if( strlen(buffer) >= 255 )
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return;
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msg.size = strlen(buffer);
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resizeMessage();
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strcpy(msg.data, buffer);
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}
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/* PRIVATE
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----------------------------------------*/
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uint8_t Packet::read_discover(uint8_t buf[], const size_t size){
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uint8_t Packet::read_discover(uint8_t *buf, const size_t size){
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// 1. fail on invalid size
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if( size != DISCOVER_SIZE )
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return PKTREAD_INVALID_DISCOVER_FORMAT;
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@ -59,52 +69,52 @@ uint8_t Packet::read_discover(uint8_t buf[], const size_t size){
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dsc.opcode = buf[0];
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dsc.wave = buf[1];
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dsc.dist = buf[2];
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dsc.sender = buf[3];
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return PKTREAD_OK;
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};
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uint8_t Packet::read_message(uint8_t buf[], const size_t size){
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size_t Packet::write_discover(uint8_t *buf){
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buf[0] = dsc.opcode;
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buf[1] = dsc.wave;
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buf[2] = dsc.dist;
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return 3;
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};
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uint8_t Packet::read_message(uint8_t *buf, const size_t size){
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// 1. fail on invalid size
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if( size < MESSAGE_MIN_SIZE || size > MESSAGE_MAX_SIZE )
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return PKTREAD_INVALID_MESSAGE_FORMAT;
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// 2. fill values
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msg.opcode = buf[0];
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msg.dist = buf[1];
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msg.ttl = buf[2];
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msg.size = buf[3];
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msg.sender = buf[1];
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msg.dist = buf[2];
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msg.ttl = buf[3];
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msg.size = buf[4];
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// 3. check message size
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if( size - 5 - 1 != msg.size )
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if( size - 5 != msg.size )
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return PKTREAD_INVALID_MESSAGE_FORMAT;
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// 4. extract message
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memcpy(msg.data, buf+4, msg.size);
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// 5. add sender id
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msg.sender = buf[msg.size+4+1];
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resizeMessage();
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strncpy(msg.data, buf+5, msg.size);
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return PKTREAD_OK;
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};
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size_t Packet::write_discover(uint8_t buf[]){
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buf[0] = dsc.opcode;
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buf[1] = dsc.wave;
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buf[2] = dsc.dist;
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buf[3] = dsc.sender;
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return 4;
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};
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size_t Packet::write_message(uint8_t buf[]){
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size_t Packet::write_message(uint8_t *buf){
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buf[0] = msg.opcode;
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buf[1] = msg.dist;
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buf[2] = msg.ttl;
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buf[3] = msg.size;
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buf[1] = msg.sender;
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buf[2] = msg.dist;
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buf[3] = msg.ttl;
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buf[4] = msg.size;
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memcpy( buf+4, msg.data, msg.size );
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buf = realloc(buf, (5+msg.size+1)* sizeof(uint8_t));
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strncpy(buf+5, msg.data, msg.size);
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buf[msg.size+5] = msg.sender;
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return 4 + msg.size;
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return 5 + msg.size;
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};
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22
packet.h
22
packet.h
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@ -20,17 +20,19 @@
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struct message msg;
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// 3. helpers
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uint8_t read_discover(uint8_t buf[], const size_t size);
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uint8_t read_message(uint8_t buf[], const size_t size);
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size_t write_discover(uint8_t buf[]);
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size_t write_message(uint8_t buf[]);
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uint8_t read_discover(uint8_t* buf, const size_t size);
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uint8_t read_message(uint8_t* buf, const size_t size);
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size_t write_discover(uint8_t* buf);
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size_t write_message(uint8_t* buf);
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public:
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Packet();
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// builds a packet from raw data and returns the status code
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uint8_t read(uint8_t buf[], const size_t size);
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uint8_t read(uint8_t* buf, const size_t size);
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// writes the binary representation of the packet returns the size
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size_t write(uint8_t buf[]);
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size_t write(uint8_t* buf);
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// GETTERS / SETTERS
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uint8_t getOpcode();
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@ -51,7 +53,13 @@
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uint8_t getSize();
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uint8_t* getData();
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void setData(uint8_t *buffer, uint8_t size);
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void setData(uint8_t *buffer);
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protected:
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resizeMessage(){
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msg.data = realloc(msg.data, (msg.size+1) * sizeof(uint8_t));
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// memset(msg.data, 0, msg.size+1);
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}
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};
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39
protocol.h
39
protocol.h
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@ -7,56 +7,29 @@
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#define SENDERID 42
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#define MESSAGE_TTL 10
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#define OPCODE_DISCOVER 0
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#define OPCODE_MESSAGE 1
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// discover request (c.f. class node)
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#define DISCOVER_SIZE sizeof(uint8_t)*4
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#define DISCOVER_SIZE sizeof(uint8_t)*3
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struct discover {
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uint8_t opcode; // opcode = 0
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uint8_t wave; // id de la wave
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uint8_t dist; // current node's distance
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uint8_t sender; // sender id
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};
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#define MESSAGE_MIN_SIZE sizeof(uint8_t)*5
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#define MESSAGE_MAX_SIZE sizeof(uint8_t)*5+sizeof(uint8_t)*255
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#define MESSAGE_MAX_SIZE (5 + 255) * sizeof(uint8_t)
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struct message {
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uint8_t opcode; // opcode = 1
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uint8_t sender; // sender id
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uint8_t dist; // distance of the last sender
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uint8_t ttl; // time to live default = 10
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uint8_t size; // size of message in bytes
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uint8_t *data; // actual message
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uint8_t sender; // sender id
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};
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#define PROTO_SIZE MESSAGE_MAX_SIZE
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// A <node> object is held by each node which values are determined thanks
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// to the DISCOVER requests it receives; each node broadcasts a DISCOVER
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// request every DISCOVER_TTL milliseconds
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// class node{
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// private:
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// // unique id of the node : MAC ADDR
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// int id;
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// // last received wave id
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// uint8_t last_wave;
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// // relative node-distance to the well
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// // WELL : dist = 0
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// // NODE1 can reach WELL : dist = 1
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// // NODE2 can reach NODE1 : dist = 2
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// // and so on...
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// uint8_t dist;
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// public:
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// // send a discover request
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// bool discover();
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// // update the current node according to a (received)
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// // discover request
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// bool update(struct discover dsc);
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// };
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#endif
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@ -17,7 +17,7 @@ void setup() {
|
|||
Serial.println("+ ready");
|
||||
|
||||
screen.begin();
|
||||
screen.printf("[ well ready ]");
|
||||
screen.printfn(0, "[ well ready ]");
|
||||
|
||||
xbee.begin(38400);
|
||||
|
||||
|
|
@ -31,13 +31,12 @@ void loop() {
|
|||
time = millis();
|
||||
|
||||
// increment wave id (will overflow from 255 to 0)
|
||||
send.setOpcode(0);
|
||||
send.setOpcode(OPCODE_DISCOVER);
|
||||
send.setWave(++wave_id);
|
||||
send.setDist(0);
|
||||
send.setSender(SENDERID);
|
||||
|
||||
screen.clear();
|
||||
screen.printfn(0, "dsc[%3d] %3d/%3d", send.getSender(), send.getDist(), send.getWave());
|
||||
screen.printfn(0, "dsc[ %3d / %3d ]", send.getDist(), send.getWave());
|
||||
|
||||
if( xbee.broadcast(send) == XBWSEND_OK ) screen.printfn(1, "sent");
|
||||
else screen.printfn(1, "failed");
|
||||
|
|
|
|||
|
|
@ -49,21 +49,14 @@ uint8_t XBeeWrapper::broadcast(Packet& pkt){
|
|||
XBeeAddress64 bcast = XBeeAddress64(0x00000000, 0x0000FFFF);
|
||||
|
||||
// build payload from packet
|
||||
uint8_t payload[PROTO_SIZE];
|
||||
uint8_t* payload = malloc(6 * sizeof(uint8_t));
|
||||
size_t payload_size = pkt.write(payload);
|
||||
|
||||
// send
|
||||
Tx64Request tx = Tx64Request(bcast, payload, payload_size);
|
||||
xbee.send(tx);
|
||||
|
||||
// // check status
|
||||
// TxStatusResponse txStatus = TxStatusResponse();
|
||||
// xbee.readPacket();
|
||||
// if( xbee.getResponse().isAvailable() ){
|
||||
// if( xbee.getResponse().getApiId() == TX_STATUS_RESPONSE ){
|
||||
// xbee.getResponse().getTxStatusResponse(txStatus);
|
||||
// return txStatus.isSuccess() ? XBWSEND_OK : XBWSEND_ERROR;
|
||||
// }
|
||||
// }
|
||||
free(payload);
|
||||
|
||||
return XBWSEND_OK;
|
||||
};
|
||||
Loading…
Reference in New Issue