Miguel Ruiz
JPEG compressor
Dependencies: SDL_lib SX1276Lib mbed
Revision 2:f256eebcade8, committed 2017-01-11
- Comitter:
- miruga27
- Date:
- Wed Jan 11 20:20:00 2017 +0000
- Parent:
- 1:f0c646dfe574
- Commit message:
- JPEG Compressor and SX1276 transmitter
Changed in this revision
--- a/encoder.cpp Thu Sep 22 00:01:55 2016 +0000
+++ b/encoder.cpp Wed Jan 11 20:20:00 2017 +0000
@@ -8,34 +8,36 @@
#include <math.h>
#include "SDL_lib/SDL.h"
#include "functions.h"
-//#include "lora2.h"
+#include "lora2.h"
+//#include "sx1276-hal.h"
+//#include "debug.h"
#include "lora_tansc.h"
-DigitalOut myled(LED1);
+//DigitalOut led(LED1);
DigitalIn button(PC_13);
-Serial uart(PA_2, PA_3);
+//Serial uart(PA_2, PA_3);
#define BPS 128000
#define BITS 8
#define STOP_BITS 1
-
int main(int argc, char *argv[]){
Serial pc(USBTX, USBRX);
pc.baud(BPS);
pc.format (BITS,SerialBase::None, STOP_BITS) ;
+
+ /*led=1;
- myled=1;
- wait (5);
- myled=0;
+ wait (2);
+ led=!led;*/
short int m[HEIGHT][WIDTH][3];
int i,j,veces=0;
+ //debug( "start of transmission...\r\n" );
+for(veces=0;veces<30;veces++){
-for(veces=0;veces<120;veces++){
-
- myled=0;
+ //myled=0;
for(i=0;i<8;i++){
for(j=0;j<320;j++){
@@ -49,15 +51,15 @@
}
}
-
+
- myled=1;
+ //myled=1;
rgb_to_yuv(m);
-
+ //debug( "DCT...\r\n" );
int mat[8][8][3];
for(i=0;i<HEIGHT;i+=8){
for(j=0;j<WIDTH;j+=8){
@@ -79,51 +81,89 @@
}
DCT(mat,m,i,j);// 'i' 'j' índices de los pixeles en x e y del macrobloque
-
+
}
}
-
+ //debug( "CUANTIZAR...\r\n" );
cuantizador(m);
short int *matriz =(short int *) malloc(sizeof(short int)*HEIGHT*WIDTH*3);
-
+ //debug( "zig-zag...\r\n" );
zig_zag(m,matriz);//OJO!!!!!
-
- short int acumulador[3]={0,0,0};
+ //debug( "rlc...\r\n" );
+ short int acumulador[3]={0x0000,0x0000,0x0000};
RLC(matriz,acumulador);
short int * temp1= (short int *) malloc(sizeof(short int)*acumulador[0]);//reserva de memoria exacta para cada una de las componenetes y u v
- short int * temp2= (short int *) malloc(sizeof(short int)*acumulador[1]);
- short int * temp3= (short int *) malloc(sizeof(short int)*acumulador[2]);
+ short int * temp2= (short int *) malloc(sizeof(short int)*acumulador[1]);//U
+ short int * temp3= (short int *) malloc(sizeof(short int)*acumulador[2]);//V
+
RLC2(matriz,temp1,temp2,temp3);
free(matriz);
+ /*acumulador[0]=20;
+ acumulador[1]=20;
+ acumulador[2]=20;*/
lora(temp1,acumulador[0],temp2,acumulador[1],temp3,acumulador[2]);
-
+ //debug( "end of transmission...\r\n" );
+
+
free(temp1);
free(temp2);
free(temp3);
+
while(!pc.writeable());
- pc.printf("1");//OJO con ponerlo aqui arriba
+ pc.printf("1");//OJO con ponerlo aqui arriba*/
+
+ char h;
+ h=acumulador[0]&0xff;
+
+ while(!pc.writeable());
+ pc.printf("%c",h);
+
+ h=(acumulador[0]>>8) & 0xff;
+
+ while(!pc.writeable());
+ pc.printf("%c",h);
+
+ h=acumulador[1]&0xff;
+
+ while(!pc.writeable());
+ pc.printf("%c",h);
+
+ h=(acumulador[1]>>8)&0xff;
+
+ while(!pc.writeable());
+ pc.printf("%c",h);
+
+
+ h=acumulador[2]&0xff;
+
+ while(!pc.writeable());
+ pc.printf("%c",h);
+
+ h=(acumulador[2]>>8)&0xff;
+
+ while(!pc.writeable());
+ pc.printf("%c",h);//OJO con ponerlo aqui arriba
}
-
+fuera:
//http://www.martin-gardner.co.uk/how-to-connect-your-old-sd-card-to-an-arduino/
+ DigitalOut led(LED1);
while(1){
- myled=1;
- wait(0.2);
- myled=0;
- wait(0.2);
+ led=1;
+ wait(0.5);
+ led=0;
+ wait(0.5);
}
-
}
-
--- a/functions.h Thu Sep 22 00:01:55 2016 +0000
+++ b/functions.h Wed Jan 11 20:20:00 2017 +0000
@@ -9,6 +9,15 @@
#define DEPTH 24
#define RAIZ2 1.414214
#define PI16 0.19635
+const float coeff[8][8]={
+ {1.000, 0.980658, 0.923381, 0.830384, 0.705265, 0.552863, 0.379075, 0.190623},
+ {1.000000, 0.830384, 0.379075, -0.200829, -0.712605, -0.982642, -0.919336, -0.544161},
+ {1.000000, 0.552863, -0.388685, -0.982642, -0.697848, 0.211013, 0.931171, 0.818607},
+ {1.000000, 0.190623, -0.927326, -0.544161, 0.719867, 0.818607, -0.407777, -0.974070},
+ {1.000000, -0.200829, -0.919336, 0.570086, 0.690356, -0.847373, -0.350003, 0.987954},
+ {1.000000, -0.561505, -0.369424, 0.976372, -0.727052, -0.159885, 0.906605, -0.858241},
+ {1.000000, -0.836138, 0.398253, 0.170150, -0.682790, 0.971663, -0.942098, 0.603785},
+ {1.000000, -0.982642, 0.931171, -0.847373, 0.734158, -0.595456, 0.436082, -0.261569} };
void DCT(int matrix[8][8][3],short int f[HEIGHT][WIDTH][3],int p_fil,int p_col){
@@ -44,8 +53,11 @@
for(j=0;j<8;j++){
- dato=(float)(cos((float)(((j*2)+1)*(v-p_col)*PI16)));
- dato2=(float)(cos((float)(((i*2)+1)*(u-p_fil)*PI16)));
+ /*dato=(float)(cos((float)(((j*2)+1)*(v-p_col)*PI16)));
+ dato2=(float)(cos((float)(((i*2)+1)*(u-p_fil)*PI16)));*/
+
+ dato=coeff[j][v-p_col];//(float)(cos((float)(((j*2)+1)*(v-p_col)*PI16)));//
+ dato2=coeff[i][u-p_fil];
acum0+=(float)(dato*dato2*(matrix[i][j][0]));//crominancia V
acum1+=(float)(dato*dato2*(matrix[i][j][1]));//crominancia U
@@ -197,10 +209,10 @@
int i,k=0,acum_y=0,acum_u=0,acum_v=0;
short int y,u,v,y_ant=0,u_ant=0,v_ant=0,flag=0;
- int cont[3]={1,1,1};
- acumulador[0]=0;
- acumulador[1]=0;
- acumulador[2]=0;
+ short int cont[3]={1,1,1};
+ acumulador[0]=0x0000;
+ acumulador[1]=0x0000;
+ acumulador[2]=0x0000;
int index=0;
for(i=0;i<WIDTH*HEIGHT*3;i+=3){
--- a/lora2.h Thu Sep 22 00:01:55 2016 +0000 +++ b/lora2.h Wed Jan 11 20:20:00 2017 +0000 @@ -115,4 +115,3 @@ #endif // __MAIN_H__ -int lora(short int *m,int *cont_y,int *cont_u,int *cont_v) ; \ No newline at end of file
--- a/lora_tansc.h Thu Sep 22 00:01:55 2016 +0000
+++ b/lora_tansc.h Wed Jan 11 20:20:00 2017 +0000
@@ -1,30 +1,25 @@
-//Author: Miguel Ruiz García
-//Company: University of Cantabria. 2016
-//mail: mrg47@alumnos.unican.es
-//code for TX & RX
#include "mbed.h"
#include "lora2.h"
#include "sx1276-hal.h"
#include "debug.h"
-//#include "functions.h"
+
/* Set this flag to '1' to display debug messages on the console */
-#define DEBUG_MESSAGE 1
-
-
+#define DEBUG_MESSAGE 0
+
/* Set this flag to '1' to use the LoRa modulation or to '0' to use FSK modulation */
#define USE_MODEM_LORA 1
#define USE_MODEM_FSK !USE_MODEM_LORA
-
-#define RF_FREQUENCY 869000000 // Hz
-#define TX_OUTPUT_POWER 14 // 14 dBm
-
+
+#define RF_FREQUENCY 868000000 // Hz
+#define TX_OUTPUT_POWER 20 // 14 dBm
+
#if USE_MODEM_LORA == 1
-
- #define LORA_BANDWIDTH 1 // [0: 125 kHz,
+
+ #define LORA_BANDWIDTH 2 // [0: 125 kHz,
// 1: 250 kHz,
// 2: 500 kHz,
// 3: Reserved]
- #define LORA_SPREADING_FACTOR 10 // [SF7..SF12]
+ #define LORA_SPREADING_FACTOR 7 // [SF7..SF12]
#define LORA_CODINGRATE 1 // [1: 4/5,
// 2: 4/6,
// 3: 4/7,
@@ -32,13 +27,13 @@
#define LORA_PREAMBLE_LENGTH 8 // Same for Tx and Rx
#define LORA_SYMBOL_TIMEOUT 5 // Symbols
#define LORA_FIX_LENGTH_PAYLOAD_ON false
- #define LORA_FHSS_ENABLED true
+ #define LORA_FHSS_ENABLED false
#define LORA_NB_SYMB_HOP 4
#define LORA_IQ_INVERSION_ON false
#define LORA_CRC_ENABLED true
#elif USE_MODEM_FSK == 1
-
+
#define FSK_FDEV 25000 // Hz
#define FSK_DATARATE 19200 // bps
#define FSK_BANDWIDTH 50000 // Hz
@@ -50,17 +45,16 @@
#else
#error "Please define a modem in the compiler options."
#endif
-
-#define RX_TIMEOUT_VALUE 3500000 // in us
-#define BUFFER_SIZE 255 // Define the payload size here [min:1 max:255]
-
+
+#define RX_TIMEOUT_VALUE 7500000 // in us
+#define BUFFER_SIZE 32 // Define the payload size here
+
#if( defined ( TARGET_KL25Z ) || defined ( TARGET_LPC11U6X ) )
DigitalOut led(LED2);
#else
DigitalOut led(LED1);
#endif
-
-
+
/*
* Global variables declarations
*/
@@ -79,82 +73,86 @@
CAD,
CAD_DONE
}AppStates_t;
-
+
volatile AppStates_t State = LOWPOWER;
-
+
/*!
* Radio events function pointer
*/
static RadioEvents_t RadioEvents;
-
+
/*
* Global variables declarations
*/
SX1276MB1xAS Radio( NULL );
-
+
const uint8_t PingMsg[] = "PING";
const uint8_t PongMsg[] = "PONG";
+
+
const uint8_t AckMsg[] = "ACK";
const uint8_t EOPMsg[] = "EOP";
const uint8_t RfSMsg[] = "RfS";
+
+const uint8_t RfSY[] = "RfSy";
+const uint8_t RfSU[] = "RfSu";
+const uint8_t RfSV[] = "RfSv";
+const uint8_t InitMsg[] = "INIT";
+const uint8_t PaqMsg[] = "\t\n";
+
int py=0,pu=0,pv=0,py2=0,pu2=0,pv2=0;
int py_ant=0,pu_ant=0,pv_ant=0;
int flag_y=0,flag_u=0,flag_v=0;
uint16_t BufferSize = BUFFER_SIZE;
uint8_t Buffer[BUFFER_SIZE];
+int empezar=0;
//uint8_t Buffer2[4];
-
+int init=0;
int16_t RssiValue = 0.0;
int8_t SnrValue = 0.0;
-
+short int init_packet=0;
+int start=0;
bool first_y=true,first_u=true,first_v=true;
-void lora(short int *temp1,short int index1,short int *temp2,short int index2,short int *temp3,short int index3)
+
+void lora(short int *temp1,short int index1,short int *temp2,short int index2,short int *temp3,short int index3)
{
- //index1=300;index2=300;index3=300;
uint8_t i;
- bool isMaster = true;//MASTER (TX) OR SLAVE(RX) ?
+ bool isMaster = true;
- //pc.baud(BPS);
- //pc.format (BITS,SerialBase::None, STOP_BITS) ;
-
-
- //debug( "\n\n\r SX1276 Ping Pong Demo Application \n\n\r" );
- //pc.printf("\n\n\r SX1276 Image transfer Application \n\n\r");
-
+// debug( "\n\n\r SX1276 JPEG Compressor Application \n\n\r" );
+
// Initialize Radio driver
RadioEvents.TxDone = OnTxDone;
RadioEvents.RxDone = OnRxDone;
RadioEvents.RxError = OnRxError;
RadioEvents.TxTimeout = OnTxTimeout;
RadioEvents.RxTimeout = OnRxTimeout;
- RadioEvents.FhssChangeChannel = OnFhssChangeChannel;
Radio.Init( &RadioEvents );
// verify the connection with the board
- goto start;
while( Radio.Read( REG_VERSION ) == 0x00 )
{
- //debug( "Radio could not be detected!\n\r", NULL );
- //pc.printf( "Radio could not be detected!\n\r", NULL );
+
+ debug( "Radio could not be detected!\n\r", NULL );
wait( 1 );
}
- start:
+
//debug_if( ( DEBUG_MESSAGE & ( Radio.DetectBoardType( ) == SX1276MB1LAS ) ) , "\n\r > Board Type: SX1276MB1LAS < \n\r" );
//debug_if( ( DEBUG_MESSAGE & ( Radio.DetectBoardType( ) == SX1276MB1MAS ) ) , "\n\r > Board Type: SX1276MB1MAS < \n\r" );
- Radio.SetChannel( HoppingFrequencies[0] );
-
+ Radio.SetChannel( RF_FREQUENCY );
+
#if USE_MODEM_LORA == 1
- //debug_if( LORA_FHSS_ENABLED, "\n\n\r > LORA FHSS Mode < \n\n\r");
+// debug_if( LORA_FHSS_ENABLED, "\n\n\r > LORA FHSS Mode < \n\n\r");
//debug_if( !LORA_FHSS_ENABLED, "\n\n\r > LORA Mode < \n\n\r");
-
+
Radio.SetTxConfig( MODEM_LORA, TX_OUTPUT_POWER, 0, LORA_BANDWIDTH,
LORA_SPREADING_FACTOR, LORA_CODINGRATE,
LORA_PREAMBLE_LENGTH, LORA_FIX_LENGTH_PAYLOAD_ON,
LORA_CRC_ENABLED, LORA_FHSS_ENABLED, LORA_NB_SYMB_HOP,
- LORA_IQ_INVERSION_ON, 4000000 );
+ LORA_IQ_INVERSION_ON, 2000000 );
Radio.SetRxConfig( MODEM_LORA, LORA_BANDWIDTH, LORA_SPREADING_FACTOR,
LORA_CODINGRATE, 0, LORA_PREAMBLE_LENGTH,
@@ -163,12 +161,12 @@
LORA_IQ_INVERSION_ON, true );
#elif USE_MODEM_FSK == 1
-
+
debug("\n\n\r > FSK Mode < \n\n\r");
Radio.SetTxConfig( MODEM_FSK, TX_OUTPUT_POWER, FSK_FDEV, 0,
FSK_DATARATE, 0,
FSK_PREAMBLE_LENGTH, FSK_FIX_LENGTH_PAYLOAD_ON,
- FSK_CRC_ENABLED, 0, 0, 0, 3000000 );
+ FSK_CRC_ENABLED, 0, 0, 0, 2000000 );
Radio.SetRxConfig( MODEM_FSK, FSK_BANDWIDTH, FSK_DATARATE,
0, FSK_AFC_BANDWIDTH, FSK_PREAMBLE_LENGTH,
@@ -176,18 +174,20 @@
0, 0, false, true );
#else
-
+
#error "Please define a modem in the compiler options."
-
+
#endif
-
- //debug_if( DEBUG_MESSAGE, "Starting image transmission loop\r\n" );
- //pc.printf("Starting image transmission loop\r\n");
+
+ //debug_if( DEBUG_MESSAGE, "Starting Ping-Pong loop\r\n" );
led = 0;
-
+ flag_y=0,flag_u=0,flag_v=0;
+ first_y=true,first_u=true,first_v=true;
+
+ int finish=0,start=0;
Radio.Rx( RX_TIMEOUT_VALUE );
- State=TX;
+
while( 1 )
{
switch( State )
@@ -195,35 +195,190 @@
case RX:
if( isMaster == true )
{
- //debug( "waiting for response....\r\n" );
if( BufferSize > 0 )
{
- if( strncmp( ( const char* )Buffer, ( const char* )AckMsg, 3 ) != 0 )
+ if( strncmp( ( const char* )Buffer, ( const char* )AckMsg, 3 ) == 0 )
{
led = !led;
- //debug( "Packet acknoledged....\r\n" );
- // pc.printf( "Packet acknoledged....\r\n" );
- // Send the next frame
- State = TX;
+ // debug( "...Ack RX\r\n" );
+
+ Buffer[0]='\t';
+ Buffer[1]='\n';
+ //index1=22;index2=25;index3=25;
+ int pointer=0;
+ py_ant=py;pu_ant=pu;pv_ant=pv;
+ for(pointer=2;pointer<BufferSize;pointer+=2){
+
+ if(flag_y==0) {//se comprueba si se ha cargado en el buffer de transmisión cada una de las componentes
+ if(first_y == true) {//en primer lugar se manda la longitud de la componente y u v
+ Buffer[pointer]=index1&0xff;//Se carga la parte baja del short int y en el siguiente byte se carga la parte alta.
+ Buffer[pointer+1]=(index1>>8)&0xff;
+ // debug("%c %c \r\n",Buffer[pointer],Buffer[pointer+1]);
+ first_y = false;
+ // debug( "transmitting y length...\r\n" );
+ // debug( " %u %u ...\r\n",Buffer[pointer],Buffer[pointer+1]);
+ }
+ else{
+ // debug( "py= %i..\r\n",py );
+ Buffer[pointer]=*(temp1+py) & 0xff;
+
+ Buffer[pointer+1]=(*(temp1+py)>>8) & 0xff;
+ py++;
+ // debug( "transmitting y data %i..\r\n",py );
+ if(py >= index1) {
+ // debug( "py final = %i...\r\n",py );
+ flag_y=1;
+
+ break;
+
+ }
+ }
+ }
+ else if(flag_u==0){
+ if(first_u == true) {
+ // debug( "pu= %i..\r\n",pu );
+ Buffer[pointer]=index2&0xff;
+ Buffer[pointer+1]=(index2>>8)&0xff;
+ first_u = false;
+ // debug( "transmitting u length...\r\n" );
+ // debug( " %u %u ...\r\n",Buffer[pointer],Buffer[pointer+1]);
+ }
+ else{
+
+ Buffer[pointer]=*(temp2+pu) & 0xff;
+ Buffer[pointer+1]=(*(temp2+pu)>>8) & 0xff;
+ pu++;
+ // debug( "transmitting u data...\r\n" );
+ if(pu>= index2) {
+ flag_u=1;
+
+ break;
+ }
+ }
+ }
+
+ else{
+ if(first_v == true) {
+ Buffer[pointer]=index3&0xff;
+ Buffer[pointer+1]=(index3>>8)&0xff;
+ first_v = false;
+ // debug( "transmitting v length...\r\n" );
+ // debug( " %u %u ...\r\n",Buffer[pointer],Buffer[pointer+1]);
+ }
+ else{
+ // debug( "pv= %i..\r\n",pv );
+ Buffer[pointer]=*(temp3+pv) & 0xff;
+ Buffer[pointer+1]=(*(temp3+pv)>>8) & 0xff;
+ pv++;
+ // debug( "transmitting v data ...\r\n" );
+ if(pv >= index3) {
+ flag_v=1;
+
+ break;
+ }
+ }
+ }
+
+
+ }
+ if(finish==1){
+ flag_y=0;flag_u=0;flag_v=0;
+ py=0;pu=0;pv=0;
+ first_y=true;first_u=true;first_v=true;
+ start=0;
+ goto end;
}
-
- else if( strncmp( ( const char* )Buffer, ( const char* )RfSMsg, 3 ) == 0 ){
- led = !led;
- debug( "Retransmit packet....\r\n" );
- // pc.printf( "Retransmit packet....\r\n" );
- // Send the next frame
- State = TX;
- py=py_ant; pu=pu_ant; pv=pv_ant;//Si hay que reenviar el paquete se reestablecen los valores de punteros.
- }
+ //debug( "end of cycle..\r\n" );
- else // valid reception but neither a message
+ if(flag_y==1 && flag_u==1 && flag_v==1){
+ //flag_y=0;flag_u=0;flag_v=0;
+ //py_ant=0;pu_ant=0;pv_ant=0;
+ py=0;pu=0;pv=0;
+ //start=0;
+ // debug( "finished transmission ...\r\n" );
+ //first_y=true;first_u=true;first_v=true;
+ finish=1;
+
+
+ }
+
+
+
+ for( i = pointer; i < BufferSize; i++ )
+ {
+ Buffer[i] = i - 4;
+ }
+ wait_ms( 10 );
+ // debug( "Sending packet...\r\n" );
+ Radio.Send( Buffer, BufferSize );
+ //if(finish==1) goto end;
+ }
+
+ else // valid reception but neither a PING or a PONG message
{ // Set device as master ans start again
- debug( "no message received...\r\n" );
- // pc.printf( "hola...\r\n" );
- isMaster = true;//this intruction is DANGEROUS!!!!!!
- Radio.Rx( RX_TIMEOUT_VALUE );
+ isMaster = true;
+ // debug("RfS received...\r\n");
+ if(strncmp( ( const char* )Buffer, ( const char* )RfSY, 4 ) == 0 ) {
+
+ py=py_ant;
+ //py-=15;
+ /*py=0xff & Buffer[6];
+ py=py<<8;
+ py=py | (Buffer[5] & 0xff);*/
+ flag_y=0;
+ if(py<=0) {
+ first_y=true;
+ py=0;
+ }
+
+ }
+ else if(strncmp( ( const char* )Buffer, ( const char* )RfSU, 4 ) == 0) {
+ pu=pu_ant;
+ //pu-=15;
+ /* pu=0xff & Buffer[6];
+ pu=pu<<8;
+ pu=pu | (Buffer[5] & 0xff);*/
+ flag_u=0;
+ if(pu<=0) {
+ first_u=true;
+ pu=0;
+ }
+
+ }
+ else {
+ pv=pv_ant;
+ //pv-=15;
+ /*pv=0xff & Buffer[6];
+ pv=pv<<8;
+ pv=pv | (Buffer[5] & 0xff);*/
+
+ flag_v=0;
+ if(pv<=0) {
+ first_v=true;
+ pv=0;
+ }
+
+ }
+
+ strcpy( ( char* )Buffer, ( char* )InitMsg );
+ Buffer[4]=py&0xff;
+ Buffer[5]=(py>>8)&0xff;
+
+ Buffer[6]=pu&0xff;
+ Buffer[7]=(pu>>8)&0xff;
+ Buffer[8]=pv&0xff;
+ Buffer[9]=(pv>>8)&0xff;
+ // We fill the buffer with numbers for the payload
+ for( i = 10; i < BufferSize; i++ )
+ {
+ Buffer[i] = i - 4;
+ }
+ wait_ms( 10 );
+ Radio.Send( Buffer, BufferSize );
+
+
}
}
}
@@ -231,331 +386,145 @@
{
if( BufferSize > 0 )
{
-
+ if( strncmp( ( const char* )Buffer, ( const char* )InitMsg, 4 ) == 0 )
+ {
led = !led;
- debug( "Reading... \r\n" );
- // pc.printf( "Reading... \r\n" );
-
- int pointer=0;
- int length_y=0,length_v=0,length_u=0;
- for(pointer=0;pointer<254;pointer+=4){
- if(flag_y==0) {//se comprueba si se ha cargado en el buffer de transmisión cada una de las componentes
- if(first_y == true) {//EL PRIMER DATO ES LA LONGITUD
- length_y=0xff & Buffer[pointer+1];
- length_y=length_y<<8;
- length_y=length_y | Buffer[pointer];
- first_y = false;
- temp1=(short int *)malloc(sizeof(short int)*length_y);
- pointer-=2;//this is to avoid lose the first byte of the component
- //in the cycle 'pointer+=4' but in the first package of the component there´s no a pair [length,value]
-
- }
- else{
- if(Buffer[pointer]!='\t'){//VERIFY the character is not EOC (end of component y u v)
-
- short int num=0;
- num=0xff & Buffer[pointer+1];
- num=num<<8;
- num=num | Buffer[pointer];
- *(temp1+py2)=num;
- py2++;
-
- if (py2 > length_y) {flag_y=1;}
-
- num=0xff & Buffer[pointer+3];
- num=num<<8;
- num=num | Buffer[pointer+2];
- *(temp1+py2)=num;
- py2++;
-
- if (py2 > length_y) {flag_y=1;}//if all bytes of the component are read, flag raised
- //originally designed with goto.
- }
- else {
- flag_y=1;
- }
- }
- }
-
-
- else if(flag_u==0){
- if(first_u == true) {
- length_u=0xff & Buffer[pointer+1];
- length_u=length_u<<8;
- length_u=length_u | Buffer[pointer];
- first_u = false;
- temp2=(short int *)malloc(sizeof(short int)*length_u);
- pointer-=2;
- }
- else{
- if(Buffer[pointer]!='\t'){//VERIFY the character is not "end of component"
-
- short int num=0;
- num=0xff & Buffer[pointer+1];
- num=num<<8;
- num=num | Buffer[pointer];
- *(temp2+pu2)=num;
- pu2++;
-
- if (pu2 > length_u) {flag_u=1;}
-
- num=0xff & Buffer[pointer+3];
- num=num<<8;
- num=num | Buffer[pointer+2];
- *(temp2+pu2)=num;
- pu2++;
-
- if (pu2 > length_u) {flag_u=1;}
- }
- else {
- flag_u=1;
- }
- }
- }
-
- else{
- if(first_v == true) {
- length_v=0xff & Buffer[pointer+1];
- length_v=length_v<<8;
- length_v=length_v | Buffer[pointer];
- first_v = false;
- temp3=(short int *)malloc(sizeof(short int)*length_v);
- pointer-=2;
- }
- else{
- if(Buffer[pointer]!='\n'){//VERIFY the character is not EOT
-
- short int num=0;
- num=0xff & Buffer[pointer+1];
- num=num<<8;
- num=num | Buffer[pointer];
- *(temp3+pv2)=num;
- py2++;
-
- if (pv2 > length_v) {flag_v=1;}
-
- num=0xff & Buffer[pointer+3];
- num=num<<8;
- num=num | Buffer[pointer+2];
- *(temp3+pv2)=num;
- pv2++;
-
- if (pv2 > length_v) {flag_v=1;}
- }
- else {
- flag_v=1;
- break;
- }
- }
- }
-
-
- }
- if(flag_y==1 && flag_u==1 && flag_v ==1){
+ // debug( "...Init received\r\n" );
+ // Send the reply to the PING string
strcpy( ( char* )Buffer, ( char* )AckMsg );
// We fill the buffer with numbers for the payload
- for( i = 4; i < BufferSize; i++ )
- {
+ for( i = 3; i < BufferSize; i++ )
+ {
Buffer[i] = i - 4;
- }
+ }
wait_ms( 10 );
Radio.Send( Buffer, BufferSize );
-
- first_y=true;first_u=true;first_v=true;
+ }
+ else if( strncmp( ( const char* )Buffer, ( const char* )PaqMsg, 2 ) == 0 )
+ { // A master already exists then become a slave
- // debug( "Packet received \r\n" );
- // pc.printf( "Packet received \r\n" );
- State = LOWPOWER;
- goto end;
-
+ // debug( "...Receiving data TX \r\n" );
+ led = !led;
+ //isMaster = false;
+ // Send the next PONG frame
+ strcpy( ( char* )Buffer, ( char* )AckMsg );
+ // We fill the buffer with numbers for the payload
+ for( i = 4; i < BufferSize; i++ )
+ {
+ Buffer[i] = i - 4;
+ }
+ wait_ms( 10 );
+ Radio.Send( Buffer, BufferSize );
}
-
- State=TX;
+ else // RfS
+ { // Set device as master and start again
+
+ Radio.Rx( RX_TIMEOUT_VALUE );
+ }
}
}
-
+ State = LOWPOWER;
break;
case TX:
led = !led;
if( isMaster == true )
{
- //debug( "transmission of packet (320x8)...\r\n" );
- //pc.printf( "transmission of packet (320x8)...\r\n" );
- int pointer=0;
-
- py_ant=py;pu_ant=pu;pv_ant=pv;
- for(pointer=0;pointer<254;pointer+=2){
-
- if(flag_y==0) {//se comprueba si se ha cargado en el buffer de transmisión cada una de las componentes
- if(first_y == true) {//en primer lugar se manda la longitud de la componente y u v
- Buffer[pointer]=index1&0xff;
- Buffer[pointer+1]=(index1>>8)&0xff;
- first_y = false;
- //debug( "transmitting y length...\r\n" );
- }
- else{
- Buffer[pointer]=*(temp1+py) & 0x00ff;
- Buffer[pointer+1]=(*(temp1+py)>>8) & 0x00ff;
- py++;
- // debug( "transmitting y data..\r\n" );
- if(py >= index1) {
- flag_y=1;
- Buffer[pointer+2]='\t';
- pointer+=2;
- }
- }
- }
- else if(flag_u==0){
- if(first_u == true) {
- Buffer[pointer]=index2&0xff;
- Buffer[pointer+1]=(index2>>8)&0xff;
- first_u = false;
- //debug( "transmitting u length...\r\n" );
- }
- else{
- Buffer[pointer]=*(temp2+pu) & 0x00ff;
- Buffer[pointer+1]=(*(temp2+pu)>>8) & 0x00ff;
- pu++;
- //debug( "transmitting u data...\r\n" );
- if(pu>= index2) {
- flag_u=1;
- Buffer[pointer+2]='\t';
- pointer+=2;
- }
- }
- }
-
- else{
- if(first_v == true) {
- Buffer[pointer]=index2&0xff;
- Buffer[pointer+1]=(index2>>8)&0xff;
- first_v = false;
- //debug( "transmitting v length...\r\n" );
- }
- else{
- Buffer[pointer]=*(temp3+pv) & 0x00ff;
- Buffer[pointer+1]=(*(temp3+pv)>>8) & 0x00ff;
- pv++;
- //debug( "transmitting v data ...\r\n" );
- if(pv >= index3) {
- flag_v=1;
- Buffer[pointer+2]='\n';//salto de línea es EOT
- pointer+=2;
- break;
- }
- }
- }
-
-
- }
-
- if(flag_y==1 && flag_u==1 && flag_v==1){
- Buffer[pointer]='\n';//salto de línea es EOT
- flag_y=0;flag_u=0;flag_v=0;
- //debug( "finished transmission ...\r\n" );
- first_y=true;first_u=true;first_v=true;
- goto end;
- for( i = Buffer[pointer]; i < BufferSize; i++ )
- {
- Buffer[i] = i - 4;
- }
- }
- else{
- for( i = Buffer[pointer]; i < BufferSize; i++ )
- {
- Buffer[i] = i - 4;
- }
- }
-
-
-
- wait_ms( 10 );
- //debug( "Sending packet...\r\n" );
- Radio.Send( Buffer, BufferSize );
-
- // pc.printf( "Sending packet...\r\n" );
+ // debug( "Iransmitting packet TX...\r\n" );
+ //if(finish==1) goto end;
}
-
else
{
- //debug( "hola...\r\n" );
- //pc.printf( "hola...\r\n" );
- strcpy( ( char* )Buffer, ( char* )AckMsg );
- for( i = 4; i < BufferSize; i++ )
- {
- Buffer[i] = i - 4;
- }
- wait_ms( 10 );
- Radio.Send( Buffer, BufferSize );
- Radio.Rx( RX_TIMEOUT_VALUE );
- }
-
- State = RX;
+ // debug( "ACK RX...\r\n" );
+ }
+ Radio.Rx( RX_TIMEOUT_VALUE );
+ State = LOWPOWER;
break;
case RX_TIMEOUT:
if( isMaster == true )
{
- //debug( "hola rx_timeout...\r\n" );
- //pc.printf( "hola...\r\n" );
+ // Send the next PING frame
+
+
+ // debug("start!\r\n");//empezamos aqui
+ //py-=15;pu-=15;pv-=15;
+ if(start==0) {
+ py=0;pu=0;pv=0;
+ start=1;
+ }
+ else{
+ py=py_ant;pu=pu_ant;pv=pv_ant;
+
+ if(pv<=0) {
+ flag_v=0;
+ first_v=true;
+ pv=0;
+ }
+ if(pu<=0) {
+ flag_u=0;
+ first_v=true;
+ pu=0;
+ }
+ if(py<=0) {
+ flag_y=0;
+ first_v=true;
+ py=0;
+ }
+ }
+ strcpy( ( char* )Buffer, ( char* )InitMsg );
+ Buffer[4]=py&0xff;
+ Buffer[5]=(py>>8)&0xff;
+
+ Buffer[6]=pu&0xff;
+ Buffer[7]=(pu>>8)&0xff;
+ Buffer[8]=pv&0xff;
+ Buffer[9]=(pv>>8)&0xff;
+ for( i = 10; i < BufferSize; i++ )
+ {
+ Buffer[i] = i - 4;
+ }
+
+ wait_ms( 10 );
+ Radio.Send( Buffer, BufferSize );
+
+
+ Radio.Rx( RX_TIMEOUT_VALUE );
+ }
+ else
+ {
+ Radio.Rx( RX_TIMEOUT_VALUE );
+ }
+ State = LOWPOWER;
+ break;
+ case RX_ERROR:
+ // We have received a Packet with a CRC error, send reply as if packet was correct
+ if( isMaster == true )
+ {
// Send the next PING frame
strcpy( ( char* )Buffer, ( char* )RfSMsg );
for( i = 4; i < BufferSize; i++ )
{
Buffer[i] = i - 4;
}
- wait_ms( 10 );
+ // debug("CRC error!\r\n");//empezamos aqui
+ //py=py_ant;pu=pu_ant;pv=pv_ant;
+ wait_ms( 10 );
Radio.Send( Buffer, BufferSize );
+
+
}
else
{
- //debug( "hola...\r\n" );
- //pc.printf( "hola...\r\n" );
- strcpy( ( char* )Buffer, ( char* )RfSMsg );
+ // Send the next PONG frame
+ strcpy( ( char* )Buffer, ( char* )AckMsg );
for( i = 4; i < BufferSize; i++ )
{
Buffer[i] = i - 4;
}
- wait_ms( 10 );
- Radio.Send( Buffer, BufferSize );
- Radio.Rx( RX_TIMEOUT_VALUE );
- }
- State = LOWPOWER;
- break;
-
- case RX_ERROR:
- // We have received a Packet with a CRC error, request packet again.
- if( isMaster == true )
- {
-
- //debug( "hola rx_error...\r\n" );
- //pc.printf( "hola...\r\n" );
- strcpy( ( char* )Buffer, ( char* )RfSMsg);
- for( i = 4; i < BufferSize; i++ )
- {
- Buffer[i] = i - 4;
- }
-
wait_ms( 10 );
Radio.Send( Buffer, BufferSize );
- State = LOWPOWER;
}
- else
- {
- //debug( "hola ...\r\n" );
- //pc.printf( "hola...\r\n" );
- // Send the RfS again
- strcpy( ( char* )Buffer, ( char* )RfSMsg);
- for( i = 4; i < BufferSize; i++ )
- {
- Buffer[i] = i - 4;
- }
- py=py_ant;pu=pu_ant;pv=pv_ant;
- wait_ms( 10 );
- Radio.Send( Buffer, BufferSize );
- State = LOWPOWER;
- }
- //State = LOWPOWER;
+ State = LOWPOWER;
break;
case TX_TIMEOUT:
Radio.Rx( RX_TIMEOUT_VALUE );
@@ -571,18 +540,16 @@
end:
int a;
}
-
+
void OnTxDone( void )
{
- Radio.SetChannel( HoppingFrequencies[0] );
Radio.Sleep( );
State = TX;
debug_if( DEBUG_MESSAGE, "> OnTxDone\n\r" );
}
-
+
void OnRxDone( uint8_t *payload, uint16_t size, int16_t rssi, int8_t snr)
{
- Radio.SetChannel( HoppingFrequencies[0] );
Radio.Sleep( );
BufferSize = size;
memcpy( Buffer, payload, BufferSize );
@@ -591,34 +558,25 @@
State = RX;
debug_if( DEBUG_MESSAGE, "> OnRxDone\n\r" );
}
-
+
void OnTxTimeout( void )
{
- Radio.SetChannel( HoppingFrequencies[0] );
Radio.Sleep( );
State = TX_TIMEOUT;
- //debug_if( DEBUG_MESSAGE, "> OnTxTimeout\n\r" );
+ debug_if( DEBUG_MESSAGE, "> OnTxTimeout\n\r" );
}
-
+
void OnRxTimeout( void )
{
- Radio.SetChannel( HoppingFrequencies[0] );
Radio.Sleep( );
Buffer[ BufferSize ] = 0;
State = RX_TIMEOUT;
- //debug_if( DEBUG_MESSAGE, "> OnRxTimeout\n\r" );
+ debug_if( DEBUG_MESSAGE, "> OnRxTimeout\n\r" );
}
-
+
void OnRxError( void )
{
- Radio.SetChannel( HoppingFrequencies[0] );
Radio.Sleep( );
State = RX_ERROR;
debug_if( DEBUG_MESSAGE, "> OnRxError\n\r" );
}
-
-void OnFhssChangeChannel( uint8_t channelIndex )
-{
- Radio.SetChannel( HoppingFrequencies[channelIndex] );
- debug_if( DEBUG_MESSAGE, "F%d-", channelIndex);
-}