shubham c
Repository for CDMS code
Dependencies: SimpleDMA mbed-rtos mbed eeprom
Fork of
COM_MNG_TMTC_SIMPLE
by 
Shreesha S
Compression.h
- Committer:
- ee12b079
- Date:
- 2016-01-07
- Revision:
- 35:3beac900a034
- Parent:
- 1:a0055b3280c8
- Child:
- 93:4d76de54a699
File content as of revision 35:3beac900a034:
int disk_write(const uint8_t *, uint64_t);
uint64_t RTC_TIME; //need to be changed to uint_64
unsigned char SDcard_lastWritten[512] = {0};
namespace Science_TMframe {
#define OUTLENGTH 360 //length of the output frame after convolution
#define SDcard_block 512 //block size of the sd card
Convolution ConvObj; //object which stores the frame after convolution
bool fresh[3] = {true,true,true}; // True only for the first time
unsigned char frames[3][134] = {0}; // "frame" stores the address of the current frame...."first_frame_address" stores the address of the first node made.
unsigned int FCN[4] = {0}; //frame count number
unsigned int data_starting_point[3] = {8,5,10};
unsigned int max_data[3] = {124,127,122}; //number of bytes in each frame excluding TMID,FCN,first_header_point,crc
unsigned char TM_convoluted_data[270] = {0}; //270 bytes is the size after convolution of 1072 bits
unsigned char complete_frame[SDcard_block] = {0};
uint64_t SDC_address = 200;
bool SCH_FCCH_FLAG = true;
void add_SCH_FCCH(){
int i = 0;
complete_frame[0] = 0x0a;
complete_frame[1] = 0x3f;;
complete_frame[2] = 0x46;
complete_frame[3] = 0xb4;
complete_frame[4] = 0x00;
for(i = 149 ; i < 159 ; i ++){
complete_frame[i] = 0 ;
}
complete_frame[159] = 0x0a;
complete_frame[160] = 0x3f;;
complete_frame[161] = 0x46;
complete_frame[162] = 0xb4;
complete_frame[163] = 0x00;
for(i = 308 ; i < 318 ; i ++){
complete_frame[i] = 0 ;
}
}
void making_frameHeader(unsigned char TMID){
unsigned char frame_type_identifier = 0; // not conform about the values , yet to be done
frames[TMID][0] = (frame_type_identifier<<7) + ( (TMID + 1)<<3 ) + ( (FCN[TMID]>>24) & 0x7 ); //frame number should be less than 2^23 since 23 bits are assigned for that
frames[TMID][1] = ((FCN[TMID]>>16) & 0xff );
frames[TMID][2] = ( (FCN[TMID]>>8 )& 0xff );
frames[TMID][3] = ( FCN[TMID] & 0xff ); // first bit for (frame identifier), next 4 for (TMID) and next 27 for FCN
if(TMID == 0){
frames[TMID][5] =( (RTC_TIME>>29) & 0xff );
frames[TMID][6] =( (RTC_TIME>>21) & 0xff );
frames[TMID][7] =( (RTC_TIME>>13) & 0xff );
}else if(TMID == 2){
frames[TMID][5] =( (RTC_TIME>>32) & 0xff );
frames[TMID][6] =( (RTC_TIME>>24) & 0xff );
frames[TMID][7] =( (RTC_TIME>>16) & 0xff );
frames[TMID][8] =( (RTC_TIME>>8 ) & 0xff );
frames[TMID][9] =( (RTC_TIME ) & 0xff );
}
}
void convolution (unsigned char * ptr){
ConvObj.convolutionEncode(ptr , TM_convoluted_data);
ConvObj.convolutionEncode(ptr + 67, TM_convoluted_data + 135);
}
/*
@brief : take the address of array of LCR or HCR and stores it into a frame
@parameters: type->L or H , deprnding on wheather it is LCR or HCR respectively
@return: nothing
*/
// type 2 yet to be done
void making_frame(unsigned char TMID ,unsigned char type, unsigned char* pointer){
TMID--; //TMID goes from 1 to 3 , convinient to ue from 0 to 2
static int frame_space_number[3] = {0}; //this variable represents the register number of the frame in which LCR or HCR data to be written not including header
int packet_len = 0;
int copy_count = 0 ;
switch(int(TMID)){
case 0: //SCP
if(type == 'L'){ //below threshold
packet_len = 22;
}
else if(type == 'H'){ //above threshold
packet_len = 26;
}
break;
case 1: //SFP above threshold
packet_len = 35;
break;
case 2: //SFP below threshold
packet_len = 23;
break;
}
if(SCH_FCCH_FLAG){
add_SCH_FCCH();
SCH_FCCH_FLAG = false;
}
if(fresh[TMID]){
//welcome to first frame
making_frameHeader(TMID);
frames[TMID][4] = 0;
fresh[TMID] = false;
}
while(copy_count < packet_len){ // 22 bytes is the size of the LCR
frames[TMID][ frame_space_number[TMID] + data_starting_point[TMID] ]= *(pointer + copy_count);
frame_space_number[TMID]++;
copy_count++;
if( frame_space_number[TMID] == max_data[TMID] ){ //frame space number can go from 0 to 126 as data is written from 0+5 to 126+5
FCN[TMID]++;
// convolution and save frame in the sd card
// copying crc in 132 and 133
int temp_crc;
temp_crc = crc16_gen(frames[TMID],132);
frames[TMID][132] = temp_crc>>8;
frames[TMID][133] = temp_crc & 0xff;
// xor
for(int j = 0 ; j < 134 ; j++){
// frames[TMID][j] = frames[TMID][j]^exorThisWithTMFrame[j];
}
//convolution and interleaving
convolution(frames[TMID]);
interleave(TM_convoluted_data , complete_frame + 5);
interleave(TM_convoluted_data+ 135,complete_frame + 164);
// writing the SDC_address in a buffer , to store it in SDcard at address 5
SDcard_lastWritten[0] = SDC_address>>56;
SDcard_lastWritten[1] = (SDC_address>>48)&0xFF;
SDcard_lastWritten[2] = (SDC_address>>40)&0xFF;
SDcard_lastWritten[3] = (SDC_address>>32)&0xFF;
SDcard_lastWritten[4] = (SDC_address>>24)&0xFF;
SDcard_lastWritten[5] = (SDC_address>>16)&0xFF;
SDcard_lastWritten[6] = (SDC_address>>8)&0xFF;
SDcard_lastWritten[7] = (SDC_address)&0xFF;
SPI_mutex.lock();
disk_write(complete_frame , SDC_address);
SPI_mutex.unlock();
SDC_address++;
//now save to the sd card TM_convoluted_data
// std::bitset<8> b;
// printf("\nthis is frame %d\n",TMID); //for printing frame
// for(int j =0; j<134;j++){
// printf(" %d",frames[TMID][j]);
//// b = frames[TMID][j];
//// cout<<b;
// }
frame_space_number[TMID] = 0;
making_frameHeader(TMID);
frames[TMID][4]=packet_len - copy_count;
//write time here also
continue;
}
}
// printf("\nthis is frame %d\n",TMID); //for printing frame
// for(int j =0; j<134;j++){
// printf(" %d",frames[TMID][j]);
// }
}
}
namespace Science_Data_Compression{
# define PACKET_SEQUENCE_COUNT 1 //1 byte
# define NUM_PROTON_BIN 17 //2 byte each
# define NUM_ELECTRON_BIN 14 //2 byte each
# define VETO 1 //2 byte
# define FASTCHAIN 2 //4 byte each
#define RAW_PACKET_LENGTH 73 //73 bytes
// #define PACKET_SEQ_COUNT 1
// #define PROTON_BIN_SIZE 2
// #define ELECTRON_BIN_SIZE 2
// #define VETO 2
// #define FAST_CHAIN 4
/*
@brief: read one uint16_t equivalent of first two chars from the stream. short int because 16 bits
@param: pointer to the start of the short int
@return: uint16_t
*/
unsigned int read_2byte(unsigned char* ptr){
unsigned int output = (unsigned int) *(ptr+1);
output += ( (unsigned int)(*ptr) ) << 8;
return output;
}
/*
@brief: read one int equivalent of first four chars from the stream. int because 32 bits
@param: pointer to the start of the short int
@return: unsigned int
*/
unsigned int read_4byte(unsigned char* ptr){
unsigned int output = (unsigned int) *(ptr+3);
output += (unsigned int)*(ptr+2)<<8;
output += (unsigned int)*(ptr+1)<<16;
output += (unsigned int)*(ptr)<<24;
return output;
}
unsigned int SFP_thresholds[35]={0 ,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100,100};//threashold values
unsigned int SCP_thresholds[35]={0 ,500,500,500,500,500,500,500,500,500,500,500,500,500,500,500,500,500,500,500,500,500,500,500,500,500,500,500,500,500,500,500,0 ,0 ,0 };
unsigned int SFP_bin[35];
unsigned int SCP_bin[35]={0};
unsigned char SFP_outputBT[23]; //BT = below threshold
unsigned char SFP_outputAT[35];
unsigned char SCP_outputLCR[22];
unsigned char SCP_outputHCR[26];
//**********************************************************************************************************************************************************************
//lots of compression functions are listed below
unsigned char SFP_compress4_BT(unsigned int input){ //for veto
int de_4 = 0;
unsigned char output;
if(input<= 3){
// DE = 0;
output = 0x0;
de_4 = 0;
}
else if(input <= 12){
// DE = 01;
output = 0x1;
de_4 = 2;
}
else if(input <= 48){
// DE = 10
output = 0x2;
de_4 = 4;
}
else {
// DE = 11
output = 0x3;
de_4 = 6;
}
unsigned short int temp = input >> de_4;
output += (temp ) << 2;
return output;
}
unsigned char SFP_compress5_BT(unsigned int input){
int de_4 = 0; //number by which bin value need to be shifted
unsigned char output;
if(input <= 15){
// D = 0 [0]
output = 0x0;
de_4 = 0;
}
else if(input <= 60){
// D = 1
output = 0x1;
de_4 = 2;
}
unsigned short int temp = input >> de_4;
output += (temp ) << 1;
return output;
};
unsigned char SFP_compress6_BT(unsigned int input){
int de_4 = 0;;
unsigned char output;
if(input <= 31){
// E = 0 [0]
output = 0x0;
de_4 = 0;
}
else if(input <= 124){
// E = 1
output = 0x1;
de_4 = 2;
}
unsigned short int temp = input >> de_4;
output += (temp ) << 1;
return output;
};
unsigned char SFP_compress7_AT(unsigned int input){
int de_4 = 0;
unsigned char output;
if(input <= 31){
// DE = 00 [0]
output = 0x0;
de_4 = 0;
}
else if(input <= 124){
// DE = 01 [1]
output = 0x1;
de_4 = 2;
}
else if(input <= 496){
// DE = 10 [2]
output = 0x2;
de_4 = 4;
}
else if(input <= 1984){
// DE = 11 [3]
output = 0x3;
de_4 = 6;
}
unsigned short int temp = input >> de_4;
output += (temp ) << 2;
return output;
};
unsigned char SFP_compress8_AT(unsigned int input){
int de_4 = 0;;
unsigned char output;
if(input <= 63){
// DE = 00 [0]
output = 0x0;
de_4 = 0;
}
else if(input <= 252){
// DE = 01 [1]
output = 0x1;
de_4 = 2;
}
else if(input <= 1008){
// DE = 10 [2]
output = 0x2;
de_4 = 4;
}
else {
// DE = 11 [3]
output = 0x3;
de_4 = 6;
}
unsigned short int temp = input >> de_4;
output += (temp ) << 2;
return output;
};
unsigned char SFP_compress5_AT(unsigned int input){
int de_4 = 0;;
unsigned char output;
if(input <= 3){
// DE = 000 [0]
output = 0x0;
de_4 = 0;
}
else if(input <= 12){
// DE = 001 [1]
output = 0x1;
de_4 = 2;
}
else if(input <= 48){
// DE = 010 [2]
output = 0x2;
de_4 = 4;
}
else if(input <= 192) {
// DE = 011 [3]
output = 0x3;
de_4 = 6;
}
else if(input <= 768) {
// DE = 100 [4]
output = 0x4;
de_4 = 8;
}
else if(input <= 3072) {
// DE = 101 [5]
output = 0x5;
de_4 = 10;
}
else if(input <= 12288) {
// DE = 110 [6]
output = 0x6;
de_4 = 12;
}
else {
// DE = 111 [7]
output = 0x7;
de_4 = 14;
}
unsigned short int temp = input >> de_4;
output += (temp ) << 3;
return output;
}
unsigned char SFP_compress7FC_AT(unsigned int input){ // for fast chain above threshold
int de_4 = 0;;
unsigned char output;
if(input <= 15){
// DE = 000 [0]
output = 0x0;
de_4 = 0;
}
else if(input <= 60){
// DE = 001 [1]
output = 0x1;
de_4 = 2;
}
else if(input <= 240){
// DE = 010 [2]
output = 0x2;
de_4 = 4;
}
else if(input <= 960) {
// DE = 011 [3]
output = 0x3;
de_4 = 6;
}
else if(input <= 3840) {
// DE = 100 [4]
output = 0x4;
de_4 = 8;
}
else if(input <= 15360) {
// DE = 101 [5]
output = 0x5;
de_4 = 10;
}
else if(input <= 61440) {
// DE = 110 [6]
output = 0x6;
de_4 = 12;
}
else {
// DE = 111 [7]
output = 0x7;
de_4 = 14;
}
unsigned short int temp = input >> de_4;
output += (temp ) << 3;
return output;
}
//++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
unsigned char SCP_compress6(unsigned int input){
int ef_4;
unsigned char output;
if(input <= 15){
// EF = 00
output = 0x0;
ef_4 = 0;
}
else if(input <= 60 ){
// EF = 01 [1]
output = 0x01;
ef_4 = 2;
}
else if(input <= 240){
// EF = 10 [2]
output = 0x02;
ef_4 = 4;
}
else{
// EF = 11 [3]
output = 0x03;
ef_4 = 6;
}
unsigned short int temp = input >> ef_4;
output += (temp & 0xf) << 2;
return output;
}
unsigned char SCP_compress5(unsigned int input){
int de_4 = 0;;
unsigned char output;
if(input <= 7){
// DE = 00 [0]
output = 0x0;
de_4 = 0;
}
else if(input <= 28){
// DE = 01 [1]
output = 0x01;
de_4 = 2;
}
else if(input <= 112){
// DE = 10 [2]
output = 0x02;
de_4 = 4;
}
else{
// DE = 11 [3]
output = 0x03;
de_4 = 6;
}
unsigned short int temp = input >> de_4;
output += (temp & 0x7) << 2;
return output;
}
unsigned char SCP_compress6h(unsigned int input) {
int ef_4;
unsigned char output;
if(input <=7){
// EF = 000 [0]
output = 0x00;
ef_4 = 0;
}
else if(input <=28){
// EF = 001 [1]
output = 0x01;
ef_4 = 2;
}
else if(input <= 112){
// EF = 010 [2]
output = 0x02;
ef_4 = 4;
}
else if(input <= 448){
// EF = 011 [3]
output = 0x03;
ef_4 = 6;
}
else if(input <= 1792){
// EF = 100 [4]
output = 0x04;
ef_4 = 8;
}
else if(input <= 7168){
// EF = 101 [5]
output = 0x05;
ef_4 = 10;
}
else if(input <= 28672){
// EF = 110 [6]
output = 0x06;
ef_4 = 12;
}
else{
// EF = 111 [7]
output = 0x07;
ef_4 =14;
}
unsigned short int temp = input >> ef_4;
output += (temp & 0x7) << 3;
return output;
}
unsigned char SCP_compress7h(unsigned int input) {
int fg_4;
unsigned char output;
if(input <= 15){
// EF = 000 [0]
output = 0x0;
fg_4 = 0;
}
else if(input <= 60){
// EF = 001 [1]
output = 0x01;
fg_4 = 2;
}
else if(input <= 240){
// EF = 010 [2]
output = 0x02;
fg_4 = 4;
}
else if(input <= 960){
// EF = 011 [3]
output = 0x03;
fg_4 = 6;
}
else if(input <= 3840){
// EF = 100 [4]
output = 0x04;
fg_4 = 8;
}
else if(input <= 15360){
// EF = 101 [5]
output = 0x05;
fg_4 = 10;
}
else if(input <= 61440){
// EF = 110 [6]
output = 0x06;
fg_4 = 12;
}
else{
// EF = 111 [7]
output = 0x07;
fg_4 =14;
}
unsigned short int temp = input >> fg_4;
output += (temp & 0xf) << 3;
return output;
}
//+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
void SCP_compress_data();
void SFP_compress_data(unsigned char* input){
bool LCR = true;
int i = 0;
static int packet_no = 0; //takes value from 0 to 29
//TRAVERSE THE LIST TO DETERMINE LCR OR HCR and stroing the values in proton_bin and electron bin
SFP_bin[0] = *input;
for(i=1 ; i<= NUM_PROTON_BIN + NUM_ELECTRON_BIN + VETO ; ++i){ //storing the bin values into an array name bin
SFP_bin[i]=read_2byte(input+1+((i-1)<<1)); //proton bin and elecron bin are 2 byte, hence read_2byte and
SCP_bin[i]+=SFP_bin[i];
if(SFP_bin[i] > SFP_thresholds[i]){ //fast cahin is 4 byte hence read_4byte
LCR = false; // if a single value is above threshold then lcr becomes false
i++;
break;
}
}
for( ; i<= NUM_PROTON_BIN + NUM_ELECTRON_BIN + VETO ; ++i){
SCP_bin[i]+=SFP_bin[i];
SFP_bin[i] = read_2byte(input + 1 + ( (i-1)<<1) );
}
SFP_bin[i] = read_4byte(input+1+ ((i-1)<<1)) ;
SCP_bin[i]+=SFP_bin[i];
if(SFP_bin[i]>SFP_thresholds[i])
LCR = false; //since veto starts from location (input + 65) and (input + 69)
SFP_bin[i+1] = read_4byte(input+69);
SCP_bin[i]+=SFP_bin[i];
if(SFP_bin[i]>SFP_thresholds[i])
LCR = false;
// printf("\n"); //for printing the sfp bin
// for (i=0;i<35;i++){
// printf("sfp[%d] = %d",i,SFP_bin[i]);
// }
// printf("\n");
if(LCR){
SFP_outputBT[0] = (packet_no<<3) + ( SFP_compress5_BT(SFP_bin[1])>>2 );
SFP_outputBT[1] = ( SFP_compress5_BT(SFP_bin[1])<<6 ) + ( SFP_compress5_BT(SFP_bin[2])<<1 ) + ( SFP_compress5_BT(SFP_bin[3])>>4 );
SFP_outputBT[2] = ( SFP_compress5_BT(SFP_bin[3])<<4 ) + ( SFP_compress5_BT(SFP_bin[4])>>1 );
SFP_outputBT[3] = ( SFP_compress5_BT(SFP_bin[4])<<7 ) + ( SFP_compress5_BT(SFP_bin[5])<<2 ) + ( SFP_compress5_BT(SFP_bin[6])>>3 );
SFP_outputBT[4] = ( SFP_compress5_BT(SFP_bin[6])<<5 ) + ( SFP_compress5_BT(SFP_bin[7]) );
SFP_outputBT[5] = ( SFP_compress5_BT(SFP_bin[8])<<3 ) + ( SFP_compress5_BT(SFP_bin[9])>>2 );
SFP_outputBT[6] = ( SFP_compress5_BT(SFP_bin[9])<<6 ) + ( SFP_compress5_BT(SFP_bin[10])<<1 ) + ( SFP_compress5_BT(SFP_bin[11])>>4 );
SFP_outputBT[7] = ( SFP_compress5_BT(SFP_bin[11])<<4 ) + ( SFP_compress5_BT(SFP_bin[12])>>1 );
SFP_outputBT[8] = ( SFP_compress5_BT(SFP_bin[12])<<7 ) + ( SFP_compress5_BT(SFP_bin[13])<<2 ) + ( SFP_compress5_BT(SFP_bin[14])>>3 );
SFP_outputBT[9] = ( SFP_compress5_BT(SFP_bin[14])<<5 ) + ( SFP_compress5_BT(SFP_bin[15]) );
SFP_outputBT[10] = ( SFP_compress5_BT(SFP_bin[16])<<3 ) + ( SFP_compress5_BT(SFP_bin[17])>>2 );
SFP_outputBT[11] = ( SFP_compress5_BT(SFP_bin[17])<<6 ) + ( SFP_compress6_BT(SFP_bin[18]) );
SFP_outputBT[12] = ( SFP_compress6_BT(SFP_bin[19])<<2 ) + ( SFP_compress6_BT(SFP_bin[20])>>4 );
SFP_outputBT[13] = ( SFP_compress6_BT(SFP_bin[20])<<4 ) + ( SFP_compress5_BT(SFP_bin[21])>>1 );
SFP_outputBT[14] = ( SFP_compress5_BT(SFP_bin[21])<<7 ) + ( SFP_compress5_BT(SFP_bin[22])<<2 ) + ( SFP_compress5_BT(SFP_bin[23])>>3 );
SFP_outputBT[15] = ( SFP_compress5_BT(SFP_bin[23])<<5 ) + ( SFP_compress5_BT(SFP_bin[24]) );
SFP_outputBT[16] = ( SFP_compress5_BT(SFP_bin[25])<<3 ) + ( SFP_compress5_BT(SFP_bin[26])>>2 );
SFP_outputBT[17] = ( SFP_compress5_BT(SFP_bin[26])<<6 ) + ( SFP_compress5_BT(SFP_bin[27])<<1 ) + ( SFP_compress5_BT(SFP_bin[28])>>4);
SFP_outputBT[18] = ( SFP_compress5_BT(SFP_bin[28])<<4 ) + ( SFP_compress5_BT(SFP_bin[29])>>1) ;
SFP_outputBT[19] = ( SFP_compress5_BT(SFP_bin[29])<<7 ) + ( SFP_compress5_BT(SFP_bin[30])<<2 ) + ( SFP_compress5_BT(SFP_bin[31])>>3) ;
SFP_outputBT[20] = ( SFP_compress5_BT(SFP_bin[31])<<5 ) + ( SFP_compress4_BT(SFP_bin[32])<<1) + ( SCP_compress5(SFP_bin[33])>>4 ) ; //
SFP_outputBT[21] = ( SCP_compress5(SFP_bin[33])<<4 ) + ( SCP_compress5(SFP_bin[34])>>1 ); //here intentionally SCP_compress is used instead of SCP_compress5 is different than SFP_compress5
SFP_outputBT[22] = ( SCP_compress5(SFP_bin[34])<<7 ); //7 bits are spare
Science_TMframe::making_frame(3,'L',SFP_outputBT);
if(++packet_no == 30){
packet_no=0;
SCP_compress_data();
for(i=0;i<PACKET_SEQUENCE_COUNT + NUM_PROTON_BIN + NUM_ELECTRON_BIN + VETO + FASTCHAIN;i++){
if(packet_no==0){
SCP_bin[i]=0;
}
}
}
}
else {
SFP_outputAT[0] = (RTC_TIME>>27)&(0xff);
SFP_outputAT[1] = (RTC_TIME>>19)&(0xff);
SFP_outputAT[2] = (RTC_TIME>>11)&(0xff);
SFP_outputAT[3] = (RTC_TIME>>3 )&(0xff);
SFP_outputAT[4] = (RTC_TIME<<5 )&(0xff) + (packet_no);
SFP_outputAT[5] = ( SFP_compress7_AT(SFP_bin[1])<<1 ) + ( SFP_compress7_AT(SFP_bin[2])>>6 );
SFP_outputAT[6] = ( SFP_compress7_AT(SFP_bin[2])<<2 ) + ( SFP_compress7_AT(SFP_bin[3])>>5 );
SFP_outputAT[7] = ( SFP_compress7_AT(SFP_bin[3])<<3 ) + ( SFP_compress7_AT(SFP_bin[4])>>4 );
SFP_outputAT[8] = ( SFP_compress7_AT(SFP_bin[4])<<4 ) + ( SFP_compress7_AT(SFP_bin[5])>>3 );
SFP_outputAT[9] = ( SFP_compress7_AT(SFP_bin[5])<<5 ) + ( SFP_compress7_AT(SFP_bin[6])>>2 );
SFP_outputAT[10] = ( SFP_compress7_AT(SFP_bin[6])<<6 ) + ( SFP_compress7_AT(SFP_bin[7])>>1 );
SFP_outputAT[11] = ( SFP_compress7_AT(SFP_bin[7])<<7 ) + ( SFP_compress7_AT(SFP_bin[8]) );
SFP_outputAT[12] = ( SFP_compress7_AT(SFP_bin[9])<<1 ) + ( SFP_compress7_AT(SFP_bin[10])>>6);
SFP_outputAT[13] = ( SFP_compress7_AT(SFP_bin[10])<<2 ) + ( SFP_compress7_AT(SFP_bin[11])>>5);
SFP_outputAT[14] = ( SFP_compress7_AT(SFP_bin[11])<<3 ) + ( SFP_compress7_AT(SFP_bin[12])>>4);
SFP_outputAT[15] = ( SFP_compress7_AT(SFP_bin[12])<<4 ) + ( SFP_compress7_AT(SFP_bin[13])>>3);
SFP_outputAT[16] = ( SFP_compress7_AT(SFP_bin[13])<<5 ) + ( SFP_compress7_AT(SFP_bin[14])>>2);
SFP_outputAT[17] = ( SFP_compress7_AT(SFP_bin[14])<<6 ) + ( SFP_compress7_AT(SFP_bin[15])>>1);
SFP_outputAT[18] = ( SFP_compress7_AT(SFP_bin[15])<<7 ) + ( SFP_compress7_AT(SFP_bin[16]));
SFP_outputAT[19] = ( SFP_compress7_AT(SFP_bin[17])<<1 ) + ( SFP_compress8_AT(SFP_bin[18])>>7 );
SFP_outputAT[20] = ( SFP_compress8_AT(SFP_bin[18])<<1 ) + ( SFP_compress8_AT(SFP_bin[19])>>7 );
SFP_outputAT[21] = ( SFP_compress8_AT(SFP_bin[19])<<1 ) + ( SFP_compress8_AT(SFP_bin[20])>>7 );
SFP_outputAT[22] = ( SFP_compress8_AT(SFP_bin[20])<<1 ) + ( SFP_compress7_AT(SFP_bin[21])>>6 );
SFP_outputAT[23] = ( SFP_compress7_AT(SFP_bin[21])<<2 ) + ( SFP_compress7_AT(SFP_bin[22])>>5 );
SFP_outputAT[24] = ( SFP_compress7_AT(SFP_bin[22])<<3 ) + ( SFP_compress7_AT(SFP_bin[23])>>4 );
SFP_outputAT[25] = ( SFP_compress7_AT(SFP_bin[23])<<4 ) + ( SFP_compress7_AT(SFP_bin[24])>>3 );
SFP_outputAT[26] = ( SFP_compress7_AT(SFP_bin[24])<<5 ) + ( SFP_compress7_AT(SFP_bin[25])>>2 );
SFP_outputAT[27] = ( SFP_compress7_AT(SFP_bin[25])<<6 ) + ( SFP_compress7_AT(SFP_bin[26])>>1 );
SFP_outputAT[28] = ( SFP_compress7_AT(SFP_bin[26])<<7 ) + ( SFP_compress7_AT(SFP_bin[27]) );
SFP_outputAT[29] = ( SFP_compress7_AT(SFP_bin[28])<<1 ) + ( SFP_compress7_AT(SFP_bin[29])>>6);
SFP_outputAT[30] = ( SFP_compress7_AT(SFP_bin[29])<<2 ) + ( SFP_compress7_AT(SFP_bin[30])>>5);
SFP_outputAT[31] = ( SFP_compress7_AT(SFP_bin[30])<<3 ) +( SFP_compress7_AT(SFP_bin[31])>>4);
SFP_outputAT[32] = ( SFP_compress7_AT(SFP_bin[31])<<4 ) +( SFP_compress5_AT(SFP_bin[32])>>1);
SFP_outputAT[33] = ( SFP_compress5_AT(SFP_bin[32])<<7 ) +( SFP_compress7FC_AT(SFP_bin[33]));
SFP_outputAT[34] = ( SFP_compress7FC_AT(SFP_bin[34])<<1 ); // 1 bit is spare
Science_TMframe::making_frame(2,'H',SFP_outputAT);
if(++packet_no == 30){
packet_no=0;
SCP_compress_data();
for(i=0;i<PACKET_SEQUENCE_COUNT + NUM_PROTON_BIN + NUM_ELECTRON_BIN + VETO + FASTCHAIN;i++){
if(packet_no==0){
SCP_bin[i]=0;
}
}
}
}
}
/*
brief: takes the pointer of the raw data string and return the address of the array which stores the address of 30 packets.
input: pointer to the raw data.
output : void
*/
void complete_compression(unsigned char *SRP,uint64_t x){
RTC_TIME = x;
int i; //30 times because 3 second data
for(i=0;i<30;i++){
SFP_compress_data(SRP + 73*i);
}
}
/////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
/*
@brief: compresses the given input stream and return output packet
@param: pointer to input stream. Input stream always has the fixed size of RAW_PACKET_LENGTH
@return: pointer to output stream. Output stream has the size of 22 or 26 bytes
*/
void SCP_compress_data(){
bool LCR = true;
int i = 0;
for(i=1;i<=PACKET_SEQUENCE_COUNT + NUM_PROTON_BIN + NUM_ELECTRON_BIN + VETO + FASTCHAIN ;i++){
if(SCP_bin[i]>SCP_thresholds[i]){
LCR = false;
break;
}
}
// printf("\n"); //for printing the scp bin
// for (i=0;i<35;i++){
// printf(" scp[%d] = %d ",i,SCP_bin[i]);
// }
// printf("\n");
// compressing the data
if(LCR){
SCP_outputLCR[0] = (RTC_TIME>>5)&(0xff); //first 13 bits for time tagging
SCP_outputLCR[1] = (RTC_TIME<<3)&(0xff); //then 4 bits for attitude tag
SCP_outputLCR[2] = 0x00; //only attitude tag is left
SCP_outputLCR[2] += ( SCP_compress5(SCP_bin[0])<<1 ) + ( SCP_compress5(SCP_bin[1])>>4 );
SCP_outputLCR[3] = ( SCP_compress5(SCP_bin[1])<<4 ) + ( SCP_compress5(SCP_bin[2])>>1 );
SCP_outputLCR[4] = ( SCP_compress5(SCP_bin[2])<<7 ) + ( SCP_compress5(SCP_bin[3])<<2 ) + ( SCP_compress5(SCP_bin[4])>>3 );
SCP_outputLCR[5] = ( SCP_compress5(SCP_bin[4])<<5 ) + ( SCP_compress5(SCP_bin[5]) );
SCP_outputLCR[6] = ( SCP_compress5(SCP_bin[6])<<3 ) + ( SCP_compress5(SCP_bin[7])>>2 );
SCP_outputLCR[7] = ( SCP_compress5(SCP_bin[7])<<6 ) + ( SCP_compress5(SCP_bin[8])<<1 ) + ( SCP_compress5(SCP_bin[9])>>4 );
SCP_outputLCR[8] = ( SCP_compress5(SCP_bin[9])<<4 ) + ( SCP_compress5(SCP_bin[10])>>1 );
SCP_outputLCR[9] = ( SCP_compress5(SCP_bin[10])<<7 ) + ( SCP_compress5(SCP_bin[11])<<2) + ( SCP_compress5(SCP_bin[12])>>3 );
SCP_outputLCR[10] = ( SCP_compress5(SCP_bin[12])<<5 ) + ( SCP_compress5(SCP_bin[13]) );
SCP_outputLCR[11] = ( SCP_compress5(SCP_bin[14])<<3 ) + ( SCP_compress5(SCP_bin[15])>>2 );
SCP_outputLCR[12] = ( SCP_compress5(SCP_bin[15])<<6 ) + ( SCP_compress5(SCP_bin[16])<<1) + ( SCP_compress6(SCP_bin[17])>>5 );
SCP_outputLCR[13] = ( SCP_compress6(SCP_bin[17])<<3 ) + ( SCP_compress6(SCP_bin[18])>>3 );
SCP_outputLCR[14] = ( SCP_compress5(SCP_bin[18])<<5 ) + ( SCP_compress6(SCP_bin[19])>>1 );
SCP_outputLCR[15] = ( SCP_compress6(SCP_bin[19])<<7 ) + ( SCP_compress5(SCP_bin[20])<<2 ) + ( SCP_compress5(SCP_bin[21])>>3 );
SCP_outputLCR[16] = ( SCP_compress5(SCP_bin[21])<<5 ) + ( SCP_compress5(SCP_bin[22]) );
SCP_outputLCR[17] = ( SCP_compress5(SCP_bin[23])<<3 ) + ( SCP_compress5(SCP_bin[24])>>2 );
SCP_outputLCR[18] = ( SCP_compress5(SCP_bin[24])<<6 ) + ( SCP_compress5(SCP_bin[25])<<1) + ( SCP_compress5(SCP_bin[26])>>4 );
SCP_outputLCR[19] = ( SCP_compress5(SCP_bin[26])<<4 ) + ( SCP_compress5(SCP_bin[27])>>1 );
SCP_outputLCR[20] = ( SCP_compress5(SCP_bin[27])<<7 ) + ( SCP_compress5(SCP_bin[28])<<2 ) + ( SCP_compress5(SCP_bin[29])>>3 );
SCP_outputLCR[21] = ( SCP_compress5(SCP_bin[29])<<5 ) + ( SCP_compress5(SCP_bin[30]) );
Science_TMframe::making_frame(1,'L',SCP_outputLCR);
}
else{
SCP_outputLCR[0] = (RTC_TIME>>5)&(0xff); //first 13 bits for time tagging
SCP_outputLCR[1] = (RTC_TIME<<3)&(0xff);
SCP_outputHCR[2] = 0x40;
SCP_outputHCR[2] += ( SCP_compress6h(SCP_bin[0])<<6 ) ;
SCP_outputHCR[3] = ( SCP_compress6h(SCP_bin[1])<<2 ) + ( SCP_compress6h(SCP_bin[2])>>4) ;
SCP_outputHCR[4] = ( SCP_compress6h(SCP_bin[2])<<4 ) + ( SCP_compress6h(SCP_bin[3])>>2) ;
SCP_outputHCR[5] = ( SCP_compress6h(SCP_bin[3])<<6 ) + ( SCP_compress6h(SCP_bin[4])) ;
SCP_outputHCR[6] = ( SCP_compress6h(SCP_bin[5])<<2 ) + ( SCP_compress6h(SCP_bin[6])>>4) ;
SCP_outputHCR[7] = ( SCP_compress6h(SCP_bin[6])<<4 ) + ( SCP_compress6h(SCP_bin[7])>>2) ;
SCP_outputHCR[8] = ( SCP_compress6h(SCP_bin[7])<<6 ) + ( SCP_compress6h(SCP_bin[8])) ;
SCP_outputHCR[9] = ( SCP_compress6h(SCP_bin[9])<<2 ) + ( SCP_compress6h(SCP_bin[10])>>4) ;
SCP_outputHCR[10] = ( SCP_compress6h(SCP_bin[10])<<4 ) + ( SCP_compress6h(SCP_bin[11])>>2);
SCP_outputHCR[11] = ( SCP_compress6h(SCP_bin[11])<<6 ) + ( SCP_compress6h(SCP_bin[12])) ;
SCP_outputHCR[12] = ( SCP_compress6h(SCP_bin[13])<<2 ) + ( SCP_compress6h(SCP_bin[14])>>4) ;
SCP_outputHCR[13] = ( SCP_compress6h(SCP_bin[14])<<4 ) + ( SCP_compress6h(SCP_bin[15])>>2) ;
SCP_outputHCR[14] = ( SCP_compress6h(SCP_bin[15])<<6 ) + ( SCP_compress6h(SCP_bin[16])) ;
SCP_outputHCR[15] = ( SCP_compress7h(SCP_bin[17])<<1 ) + ( SCP_compress7h(SCP_bin[18])>>6) ;
SCP_outputHCR[16] = ( SCP_compress7h(SCP_bin[18])<<2 ) + ( SCP_compress7h(SCP_bin[19])>>5) ;
SCP_outputHCR[17] = ( SCP_compress7h(SCP_bin[19])<<3 ) + ( SCP_compress6h(SCP_bin[20])>>3) ;
SCP_outputHCR[18] = ( SCP_compress6h(SCP_bin[20])<<5 ) + ( SCP_compress6h(SCP_bin[21])>>1) ;
SCP_outputHCR[19] = ( SCP_compress6h(SCP_bin[21])<<7 ) + ( SCP_compress6h(SCP_bin[22])<<1) + ( SCP_compress6h(SCP_bin[23])>>5) ;
SCP_outputHCR[20] = ( SCP_compress6h(SCP_bin[23])<<3 ) + ( SCP_compress6h(SCP_bin[24])>>3) ;
SCP_outputHCR[21] = ( SCP_compress6h(SCP_bin[24])<<5 ) + ( SCP_compress6h(SCP_bin[25])>>1) ;
SCP_outputHCR[22] = ( SCP_compress6h(SCP_bin[25])<<7 ) + ( SCP_compress6h(SCP_bin[26])<<1) + ( SCP_compress6h(SCP_bin[27])>>5) ;
SCP_outputHCR[23] = ( SCP_compress6h(SCP_bin[27])<<3 ) + ( SCP_compress6h(SCP_bin[28])>>3) ;
SCP_outputHCR[24] = ( SCP_compress6h(SCP_bin[28])<<5 ) + ( SCP_compress6h(SCP_bin[29])>>1) ;
SCP_outputHCR[25] = ( SCP_compress6h(SCP_bin[29])<<7 ) + ( SCP_compress6h(SCP_bin[30])<<1) ; //last bit is empty
/* for (i=0;i<26;i++){
printf("\nscp[%d] = %d",i,SCP_outputHCR[i]);
}*/
Science_TMframe::making_frame(1,'H',SCP_outputHCR);
}
}
}
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Repository details
| Type: | Program |
|---|---|
| Mbed OS support: | Mbed 2 deprecated |
| Created: | 01 Apr 2016 |
| Imports: | 46 |
| Forks: | 7 |
| Commits: | 352 |
| Dependents: | 0 |
| Dependencies: | 4 |
| Followers: | 8 |
