Dheeraj M Pai / Mbed 2 deprecated send_tn_intgration_sss_clone1_13Jan2016

Configuration according to flowchart included. (UPTO PHY_ON). INclusion of #define functions

Dependencies:   mbed

Fork of send_tn_intgration_sss by krishan prajapat

convolutionHeader2.h@5:9664602e1ceb, 2016-01-13 (annotated)

Committer:
dheerajmpai23
Date:
Wed Jan 13 11:49:09 2016 +0000
Revision:
5:9664602e1ceb
Parent:
0:da506debc107 
Changes Made:; ; inclusion of 1. #define functions 2.config_f() function without PHY_TX; ; file from krishan's a/c

Who changed what in which revision?

UserRevisionLine numberNew contents of line
krishanprajapat 0:da506debc107 1
krishanprajapat 0:da506debc107 2
krishanprajapat 0:da506debc107 3 class Convolution{
krishanprajapat 0:da506debc107 4
krishanprajapat 0:da506debc107 5 private:
krishanprajapat 0:da506debc107 6 typedef struct ConvNode{
krishanprajapat 0:da506debc107 7 //next state
krishanprajapat 0:da506debc107 8 //format : 8 bits mapped as [1]xxxx [0]xxxx
krishanprajapat 0:da506debc107 9 unsigned char nextState;
krishanprajapat 0:da506debc107 10
krishanprajapat 0:da506debc107 11 //output
krishanprajapat 0:da506debc107 12 // format : 8 bits mapped as
krishanprajapat 0:da506debc107 13 // **** xxxx{2} [1]-[0] {1} [1]-[0] i.e. ****xxxx
krishanprajapat 0:da506debc107 14 // x = data, * = junk
krishanprajapat 0:da506debc107 15 unsigned char output;
krishanprajapat 0:da506debc107 16 }ConvNode;
krishanprajapat 0:da506debc107 17
krishanprajapat 0:da506debc107 18 ConvNode convStateList[16];
krishanprajapat 0:da506debc107 19
krishanprajapat 0:da506debc107 20 public:
krishanprajapat 0:da506debc107 21 /*
krishanprajapat 0:da506debc107 22 @brief: Constructor : Initialise all the variables
krishanprajapat 0:da506debc107 23 @param: none
krishanprajapat 0:da506debc107 24 @return: none
krishanprajapat 0:da506debc107 25 */
krishanprajapat 0:da506debc107 26 Convolution(){
krishanprajapat 0:da506debc107 27
krishanprajapat 0:da506debc107 28 convStateList[0].nextState = 0x10;
krishanprajapat 0:da506debc107 29 convStateList[1].nextState = 0x32;
krishanprajapat 0:da506debc107 30 convStateList[2].nextState = 0x54;
krishanprajapat 0:da506debc107 31 convStateList[3].nextState = 0x76;
krishanprajapat 0:da506debc107 32 convStateList[4].nextState = 0x98;
krishanprajapat 0:da506debc107 33 convStateList[5].nextState = 0xBA;
krishanprajapat 0:da506debc107 34 convStateList[6].nextState = 0xDC;
krishanprajapat 0:da506debc107 35 convStateList[7].nextState = 0xFE;
krishanprajapat 0:da506debc107 36 convStateList[8].nextState = 0x10;
krishanprajapat 0:da506debc107 37 convStateList[9].nextState = 0x32;
krishanprajapat 0:da506debc107 38 convStateList[10].nextState = 0x54;
krishanprajapat 0:da506debc107 39 convStateList[11].nextState = 0x76;
krishanprajapat 0:da506debc107 40 convStateList[12].nextState = 0x98;
krishanprajapat 0:da506debc107 41 convStateList[13].nextState = 0xBA;
krishanprajapat 0:da506debc107 42 convStateList[14].nextState = 0xDC;
krishanprajapat 0:da506debc107 43 convStateList[15].nextState = 0xFE;
krishanprajapat 0:da506debc107 44
krishanprajapat 0:da506debc107 45 convStateList[0].output = 0x0A;
krishanprajapat 0:da506debc107 46 convStateList[1].output = 0x06;
krishanprajapat 0:da506debc107 47 convStateList[2].output = 0x06;
krishanprajapat 0:da506debc107 48 convStateList[3].output = 0x0A;
krishanprajapat 0:da506debc107 49 convStateList[4].output = 0x09;
krishanprajapat 0:da506debc107 50 convStateList[5].output = 0x05;
krishanprajapat 0:da506debc107 51 convStateList[6].output = 0x05;
krishanprajapat 0:da506debc107 52 convStateList[7].output = 0x09;
krishanprajapat 0:da506debc107 53 convStateList[8].output = 0x05;
krishanprajapat 0:da506debc107 54 convStateList[9].output = 0x09;
krishanprajapat 0:da506debc107 55 convStateList[10].output = 0x09;
krishanprajapat 0:da506debc107 56 convStateList[11].output = 0x05;
krishanprajapat 0:da506debc107 57 convStateList[12].output = 0x06;
krishanprajapat 0:da506debc107 58 convStateList[13].output = 0x0A;
krishanprajapat 0:da506debc107 59 convStateList[14].output = 0x0A;
krishanprajapat 0:da506debc107 60 convStateList[15].output = 0x06;
krishanprajapat 0:da506debc107 61 }
krishanprajapat 0:da506debc107 62
krishanprajapat 0:da506debc107 63
krishanprajapat 0:da506debc107 64 /*
krishanprajapat 0:da506debc107 65 @brief: convolution encode the input bytes : in sync with => (1-TM-Frame -> 2-T-Frame)
krishanprajapat 0:da506debc107 66 @param: inPtr : pointer to input unsigned char array
krishanprajapat 0:da506debc107 67 inLength : length in bytes of input array
krishanprajapat 0:da506debc107 68 outPtr : pointer to the output bytes, define it outside the function
krishanprajapat 0:da506debc107 69 outLength : length of output array in bytes [call by reference, edited inside the function]
krishanprajapat 0:da506debc107 70 @return: none
krishanprajapat 0:da506debc107 71 */
krishanprajapat 0:da506debc107 72 void convolutionEncode(unsigned char *input, unsigned char *output){
krishanprajapat 0:da506debc107 73
krishanprajapat 0:da506debc107 74 // cout << "inside convolution" << endl;
krishanprajapat 0:da506debc107 75
krishanprajapat 0:da506debc107 76 unsigned int convState = 0;
krishanprajapat 0:da506debc107 77
krishanprajapat 0:da506debc107 78 int inBit = 7;
krishanprajapat 0:da506debc107 79 unsigned int inByte = 0;
krishanprajapat 0:da506debc107 80
krishanprajapat 0:da506debc107 81 unsigned int outState = 0;
krishanprajapat 0:da506debc107 82 unsigned int outByte = 0;
krishanprajapat 0:da506debc107 83
krishanprajapat 0:da506debc107 84 for(unsigned int j = 0 ; j < 536 ; ++j){
krishanprajapat 0:da506debc107 85 // printf("j = %u, inByte = %u\n", j, inByte);
krishanprajapat 0:da506debc107 86 // read a new bit from input stream
krishanprajapat 0:da506debc107 87 // cout << "inByte " <<inByte;
krishanprajapat 0:da506debc107 88 unsigned char tempBit = (input[inByte] >> inBit) & 1;
krishanprajapat 0:da506debc107 89 --inBit;
krishanprajapat 0:da506debc107 90
krishanprajapat 0:da506debc107 91 // convolute and write output
krishanprajapat 0:da506debc107 92 switch(outState){
krishanprajapat 0:da506debc107 93 case 0:
krishanprajapat 0:da506debc107 94 outState = 2;
krishanprajapat 0:da506debc107 95 output[outByte] = ( (convStateList[convState].output >> tempBit) & 1 ) << 7;
krishanprajapat 0:da506debc107 96 output[outByte] += ( (convStateList[convState].output >> (tempBit + 2)) & 1 ) << 6;
krishanprajapat 0:da506debc107 97 break;
krishanprajapat 0:da506debc107 98 case 2:
krishanprajapat 0:da506debc107 99 outState = 4;
krishanprajapat 0:da506debc107 100 output[outByte] += ( (convStateList[convState].output >> tempBit) & 1 ) << 5;
krishanprajapat 0:da506debc107 101 output[outByte] += ( (convStateList[convState].output >> (tempBit + 2)) & 1 ) << 4;
krishanprajapat 0:da506debc107 102 break;
krishanprajapat 0:da506debc107 103 case 4:
krishanprajapat 0:da506debc107 104 outState = 6;
krishanprajapat 0:da506debc107 105 output[outByte] += ( (convStateList[convState].output >> tempBit) & 1 ) << 3;
krishanprajapat 0:da506debc107 106 output[outByte] += ( (convStateList[convState].output >> (tempBit + 2)) & 1 ) << 2;
krishanprajapat 0:da506debc107 107 break;
krishanprajapat 0:da506debc107 108 case 6:
krishanprajapat 0:da506debc107 109 outState = 0;
krishanprajapat 0:da506debc107 110 output[outByte] += ( (convStateList[convState].output >> tempBit) & 1 ) << 1;
krishanprajapat 0:da506debc107 111 output[outByte] += ( (convStateList[convState].output >> (tempBit + 2)) & 1 );
krishanprajapat 0:da506debc107 112 ++outByte;
krishanprajapat 0:da506debc107 113 output[outByte] = 0x00;
krishanprajapat 0:da506debc107 114 break;
krishanprajapat 0:da506debc107 115 }
krishanprajapat 0:da506debc107 116
krishanprajapat 0:da506debc107 117 // next state transition
krishanprajapat 0:da506debc107 118 switch(tempBit){
krishanprajapat 0:da506debc107 119 case 0:
krishanprajapat 0:da506debc107 120 convState = (convStateList[convState].nextState) & 0xF;
krishanprajapat 0:da506debc107 121 break;
krishanprajapat 0:da506debc107 122 case 1:
krishanprajapat 0:da506debc107 123 convState = (convStateList[convState].nextState >> 4) & 0xF;
krishanprajapat 0:da506debc107 124 break;
krishanprajapat 0:da506debc107 125 }
krishanprajapat 0:da506debc107 126
krishanprajapat 0:da506debc107 127 if(inBit == -1){
krishanprajapat 0:da506debc107 128 // printf("in byte = %u\n", inByte);
krishanprajapat 0:da506debc107 129 ++inByte;
krishanprajapat 0:da506debc107 130 inBit = 7;
krishanprajapat 0:da506debc107 131 }
krishanprajapat 0:da506debc107 132
krishanprajapat 0:da506debc107 133 }
krishanprajapat 0:da506debc107 134
krishanprajapat 0:da506debc107 135 // printf("normal iteration complete, outByte = %u\n", outByte);
krishanprajapat 0:da506debc107 136
krishanprajapat 0:da506debc107 137 for(unsigned int j = 0 ; j < 4 ; ++j){
krishanprajapat 0:da506debc107 138 // printf("j = %u\n, outByte = %u\n", j, outByte);
krishanprajapat 0:da506debc107 139 // append zero at the end
krishanprajapat 0:da506debc107 140 switch(outState){
krishanprajapat 0:da506debc107 141 case 0:
krishanprajapat 0:da506debc107 142 outState = 2;
krishanprajapat 0:da506debc107 143 output[outByte] = ( (convStateList[convState].output) & 1 ) << 7;
krishanprajapat 0:da506debc107 144 output[outByte] += ( (convStateList[convState].output >> 2) & 1 ) << 6;
krishanprajapat 0:da506debc107 145 break;
krishanprajapat 0:da506debc107 146 case 2:
krishanprajapat 0:da506debc107 147 outState = 4;
krishanprajapat 0:da506debc107 148 output[outByte] += ( (convStateList[convState].output) & 1 ) << 5;
krishanprajapat 0:da506debc107 149 output[outByte] += ( (convStateList[convState].output >> 2) & 1 ) << 4;
krishanprajapat 0:da506debc107 150 break;
krishanprajapat 0:da506debc107 151 case 4:
krishanprajapat 0:da506debc107 152 outState = 6;
krishanprajapat 0:da506debc107 153 output[outByte] += ( (convStateList[convState].output ) & 1 ) << 3;
krishanprajapat 0:da506debc107 154 output[outByte] += ( (convStateList[convState].output >> 2) & 1 ) << 2;
krishanprajapat 0:da506debc107 155 break;
krishanprajapat 0:da506debc107 156 case 6:
krishanprajapat 0:da506debc107 157 outState = 0;
krishanprajapat 0:da506debc107 158 output[outByte] += ( (convStateList[convState].output ) & 1 ) << 1;
krishanprajapat 0:da506debc107 159 output[outByte] += ( (convStateList[convState].output >> 2) & 1 );
krishanprajapat 0:da506debc107 160 ++outByte;
krishanprajapat 0:da506debc107 161 // printf("outByte @ end of switch = %u\n", outByte);
krishanprajapat 0:da506debc107 162 break;
krishanprajapat 0:da506debc107 163 }
krishanprajapat 0:da506debc107 164 // next state transition
krishanprajapat 0:da506debc107 165 convState = (convStateList[convState].nextState) & 0xF;
krishanprajapat 0:da506debc107 166 }
krishanprajapat 0:da506debc107 167 // printf("complete\n");
krishanprajapat 0:da506debc107 168 }
krishanprajapat 0:da506debc107 169
krishanprajapat 0:da506debc107 170 };