David Jung / Mbed OS MAX86140_Authenication_SHA256_test

intiial commit

Dependencies:   MAX8614X USBDevice max32630hsp_test

main.cpp@15:2616528b4007, 2018-08-16 (annotated)

Committer:
phonemacro
Date:
Thu Aug 16 21:35:56 2018 +0000
Revision:
15:2616528b4007
Parent:
14:1939758a03cf
Child:
16:d0f8cf9f160d
six challenges successful

Who changed what in which revision?

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phonemacro 0:9e5a4f845510 1 /**********************************************************************
phonemacro 1:854f8a89a527 2 * Copyright (C) 2018 Maxim Integrated Products, Inc., All Rights Reserved.
phonemacro 0:9e5a4f845510 3 *
phonemacro 0:9e5a4f845510 4 * Permission is hereby granted, free of charge, to any person obtaining a
phonemacro 0:9e5a4f845510 5 * copy of this software and associated documentation files (the "Software"),
phonemacro 0:9e5a4f845510 6 * to deal in the Software without restriction, including without limitation
phonemacro 0:9e5a4f845510 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
phonemacro 0:9e5a4f845510 8 * and/or sell copies of the Software, and to permit persons to whom the
phonemacro 0:9e5a4f845510 9 * Software is furnished to do so, subject to the following conditions:
phonemacro 0:9e5a4f845510 10 *
phonemacro 0:9e5a4f845510 11 * The above copyright notice and this permission notice shall be included
phonemacro 0:9e5a4f845510 12 * in all copies or substantial portions of the Software.
phonemacro 0:9e5a4f845510 13 *
phonemacro 0:9e5a4f845510 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
phonemacro 0:9e5a4f845510 15 * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
phonemacro 0:9e5a4f845510 16 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
phonemacro 0:9e5a4f845510 17 * IN NO EVENT SHALL MAXIM INTEGRATED BE LIABLE FOR ANY CLAIM, DAMAGES
phonemacro 0:9e5a4f845510 18 * OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
phonemacro 0:9e5a4f845510 19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
phonemacro 0:9e5a4f845510 20 * OTHER DEALINGS IN THE SOFTWARE.
phonemacro 0:9e5a4f845510 21 *
phonemacro 0:9e5a4f845510 22 * Except as contained in this notice, the name of Maxim Integrated
phonemacro 0:9e5a4f845510 23 * Products, Inc. shall not be used except as stated in the Maxim Integrated
phonemacro 0:9e5a4f845510 24 * Products, Inc. Branding Policy.
phonemacro 0:9e5a4f845510 25 *
phonemacro 0:9e5a4f845510 26 * The mere transfer of this software does not imply any licenses
phonemacro 0:9e5a4f845510 27 * of trade secrets, proprietary technology, copyrights, patents,
phonemacro 0:9e5a4f845510 28 * trademarks, maskwork rights, or any other form of intellectual
phonemacro 0:9e5a4f845510 29 * property whatsoever. Maxim Integrated Products, Inc. retains all
phonemacro 0:9e5a4f845510 30 * ownership rights.
phonemacro 0:9e5a4f845510 31 **********************************************************************/
phonemacro 0:9e5a4f845510 32
phonemacro 0:9e5a4f845510 33
phonemacro 0:9e5a4f845510 34 #include "mbed.h"
phonemacro 0:9e5a4f845510 35 //#include "max32630fthr.h"
phonemacro 0:9e5a4f845510 36 #include "max32630hsp.h"
phonemacro 0:9e5a4f845510 37 #include "MAX8614X.h"
phonemacro 0:9e5a4f845510 38 #include "USBSerial.h"
phonemacro 12:fc888315e5fd 39 void executeSha256(MAX8614X &m, uint8_t *challenge, unsigned int challengeLen, bool romID);
phonemacro 7:5b7f7ec9efe0 40
phonemacro 0:9e5a4f845510 41
phonemacro 0:9e5a4f845510 42 MAX32630HSP icarus(MAX32630HSP::VIO_1V8);
phonemacro 0:9e5a4f845510 43 // MAX32630FTHR mbed_board(MAX32630FTHR::VIO_1V8);
phonemacro 0:9e5a4f845510 44 SPI spi(P5_1, P5_2, P5_0); /* mosi, miso, sclk */
phonemacro 3:2272f89aad7e 45 //DigitalOut cs(P3_0);
phonemacro 3:2272f89aad7e 46 DigitalOut cs(P5_3);
phonemacro 6:0ec9dd0e8eb0 47 //PinName interrupt_pin = P3_3;
phonemacro 6:0ec9dd0e8eb0 48 //PinnName interrupt_pin = P5_7;
phonemacro 6:0ec9dd0e8eb0 49 //PinName interrupt_pin = P5_5;
phonemacro 6:0ec9dd0e8eb0 50 //PinName interrupt_pin = P3_6;
phonemacro 6:0ec9dd0e8eb0 51 //PinName interrupt_pin = P3_7;
phonemacro 6:0ec9dd0e8eb0 52 //PinName interrupt_pin = P3_2;
phonemacro 6:0ec9dd0e8eb0 53 PinName interrupt_pin = P5_4;
phonemacro 0:9e5a4f845510 54 // Virtual serial port over USB
phonemacro 0:9e5a4f845510 55 USBSerial microUSB;
phonemacro 0:9e5a4f845510 56
phonemacro 0:9e5a4f845510 57 DigitalOut rLED(LED1);
phonemacro 0:9e5a4f845510 58 DigitalOut gLED(LED2);
phonemacro 0:9e5a4f845510 59 DigitalOut bLED(LED3);
phonemacro 0:9e5a4f845510 60 int main()
phonemacro 0:9e5a4f845510 61 {
phonemacro 7:5b7f7ec9efe0 62 #define CHALLENGE_SZ_NO_SECRET 20
phonemacro 15:2616528b4007 63 uint8_t challenge_A[CHALLENGE_SZ_NO_SECRET] = { // 160 bit, no ROM
phonemacro 15:2616528b4007 64 0x00, 0x00, 0x00, 0x01,
phonemacro 15:2616528b4007 65 0x00, 0x00, 0x00, 0x00,
phonemacro 15:2616528b4007 66 0x00, 0x00, 0x00, 0x00,
phonemacro 15:2616528b4007 67 0x00, 0x00, 0x00, 0x00,
phonemacro 15:2616528b4007 68 0x00, 0x00, 0x00, 0x00
phonemacro 15:2616528b4007 69 };
phonemacro 10:0b940aff3bb8 70 uint8_t challenge_1[CHALLENGE_SZ_NO_SECRET] = { // 160 bit
phonemacro 10:0b940aff3bb8 71 0x5e, 0x81, 0x35, 0x24,
phonemacro 10:0b940aff3bb8 72 0x56, 0x63, 0xd6, 0x09,
phonemacro 10:0b940aff3bb8 73 0x99, 0x8d, 0x7b, 0x0d,
phonemacro 10:0b940aff3bb8 74 0x52, 0x12, 0x84, 0x65,
phonemacro 10:0b940aff3bb8 75 0xcd, 0x0d, 0xe3, 0x01
phonemacro 4:46919eec2c28 76 };
phonemacro 4:46919eec2c28 77
phonemacro 14:1939758a03cf 78 uint8_t challenge_2[CHALLENGE_SZ_NO_SECRET] = { // 160 bit, no ROM
phonemacro 13:97854f761347 79 0xd2, 0xaa, 0x84, 0xc5,
phonemacro 13:97854f761347 80 0x72, 0x77, 0xf7, 0xe5,
phonemacro 13:97854f761347 81 0xdb, 0x8f, 0xd6, 0x12,
phonemacro 13:97854f761347 82 0x96, 0xce, 0x69, 0xf2,
phonemacro 13:97854f761347 83 0x4e, 0xc5, 0x7a, 0xe8
phonemacro 13:97854f761347 84 };
phonemacro 14:1939758a03cf 85
phonemacro 14:1939758a03cf 86 uint8_t challenge_3[CHALLENGE_SZ_NO_SECRET] = { // 160 bit, no ROM
phonemacro 14:1939758a03cf 87 0x21, 0x20, 0x22, 0x80,
phonemacro 14:1939758a03cf 88 0xcc, 0x9d, 0x45, 0xaa,
phonemacro 14:1939758a03cf 89 0xb8, 0x13, 0x3e, 0x96,
phonemacro 14:1939758a03cf 90 0xd6, 0x53, 0x38, 0x0d,
phonemacro 14:1939758a03cf 91 0x2a, 0xd5, 0xdd, 0x6b
phonemacro 14:1939758a03cf 92 };
phonemacro 15:2616528b4007 93 uint8_t challenge_4[CHALLENGE_SZ_NO_SECRET] = { // 160 bit, no ROM
phonemacro 15:2616528b4007 94 0x4c, 0x3c, 0x0a, 0xca,
phonemacro 15:2616528b4007 95 0x61, 0x8a, 0xbd, 0xf2,
phonemacro 15:2616528b4007 96 0x34, 0xd8, 0xb3, 0x41,
phonemacro 15:2616528b4007 97 0x12, 0x89, 0xf3, 0x78,
phonemacro 15:2616528b4007 98 0x65, 0xb6, 0x0d, 0xeb
phonemacro 15:2616528b4007 99 };
phonemacro 5:df9f75bee8ac 100 #define MAC_SZ 32
phonemacro 7:5b7f7ec9efe0 101
phonemacro 0:9e5a4f845510 102
phonemacro 0:9e5a4f845510 103 // daplink.printf("daplink serial port\r\n");
phonemacro 0:9e5a4f845510 104 // microUSB.printf("micro USB serial port\r\n");
phonemacro 0:9e5a4f845510 105 rLED = LED_ON;
phonemacro 0:9e5a4f845510 106 gLED = LED_ON;
phonemacro 0:9e5a4f845510 107 bLED = LED_OFF;
phonemacro 0:9e5a4f845510 108
phonemacro 0:9e5a4f845510 109 rLED = LED_OFF;
phonemacro 1:854f8a89a527 110 printf("\r\n\rmax86140 authenication software\r\n");
phonemacro 11:ec7998257ec2 111 MAX8614X m(spi,cs,interrupt_pin);
phonemacro 11:ec7998257ec2 112 // MAX8614X m(spi,cs,interrupt_pin);
phonemacro 7:5b7f7ec9efe0 113 // m.readRegister(MAX8614X::MAX8614X_PART_ID_REG, data, 1);
phonemacro 7:5b7f7ec9efe0 114 // printf("device id should be 0x24, reg %02X = %02X\r\n", MAX8614X::MAX8614X_PART_ID_REG, data[0]);
phonemacro 3:2272f89aad7e 115
phonemacro 15:2616528b4007 116 executeSha256(m, challenge_A, CHALLENGE_SZ_NO_SECRET, 1);
phonemacro 12:fc888315e5fd 117 executeSha256(m, challenge_1, CHALLENGE_SZ_NO_SECRET, 1);
phonemacro 13:97854f761347 118 executeSha256(m, challenge_2, CHALLENGE_SZ_NO_SECRET, 0);
phonemacro 14:1939758a03cf 119 executeSha256(m, challenge_3, CHALLENGE_SZ_NO_SECRET, 1);
phonemacro 15:2616528b4007 120 executeSha256(m, challenge_4, CHALLENGE_SZ_NO_SECRET, 0);
phonemacro 13:97854f761347 121 //- Compare MAC from MAX86140 wth Host's precalculated MAC.
phonemacro 13:97854f761347 122 //- Check PASS or FAIL.
phonemacro 13:97854f761347 123 //- Disable SHA_EN bit ( Write 0 to SHA_EN bit).
phonemacro 0:9e5a4f845510 124 while(1) {
phonemacro 1:854f8a89a527 125 gLED = !gLED;
phonemacro 0:9e5a4f845510 126 wait(1.0);
phonemacro 0:9e5a4f845510 127 }
phonemacro 0:9e5a4f845510 128 }
phonemacro 0:9e5a4f845510 129
phonemacro 10:0b940aff3bb8 130 #if 0
phonemacro 7:5b7f7ec9efe0 131 void transformData(uint8_t *inData, uint8_t *outData, unsigned int challengeLen)
phonemacro 7:5b7f7ec9efe0 132 {
phonemacro 7:5b7f7ec9efe0 133 int i, j, k;
phonemacro 7:5b7f7ec9efe0 134 k = 0;
phonemacro 7:5b7f7ec9efe0 135 for (i = 0; i < (challengeLen/4); i++) {
phonemacro 7:5b7f7ec9efe0 136 for (j = 3; j >= 0; j--) {
phonemacro 7:5b7f7ec9efe0 137 outData[j+(i*4)] = inData[k];
phonemacro 7:5b7f7ec9efe0 138 k++;
phonemacro 7:5b7f7ec9efe0 139 }
phonemacro 7:5b7f7ec9efe0 140 }
phonemacro 7:5b7f7ec9efe0 141 }
phonemacro 10:0b940aff3bb8 142 #endif
phonemacro 10:0b940aff3bb8 143 void transformData(uint8_t *inData, uint8_t *outData, unsigned int challengeLen)
phonemacro 10:0b940aff3bb8 144 {
phonemacro 10:0b940aff3bb8 145 int i, j, k;
phonemacro 10:0b940aff3bb8 146 k = 0;
phonemacro 10:0b940aff3bb8 147 for (i = 0; i < (challengeLen/4); i++) {
phonemacro 10:0b940aff3bb8 148 for (j = 3; j >= 0; j--) {
phonemacro 10:0b940aff3bb8 149 outData[j+(i*4)] = inData[k];
phonemacro 10:0b940aff3bb8 150 // printf("%02X ",inData[k]);
phonemacro 10:0b940aff3bb8 151 k++;
phonemacro 10:0b940aff3bb8 152 }
phonemacro 10:0b940aff3bb8 153 // printf("\r\n");
phonemacro 10:0b940aff3bb8 154 }
phonemacro 10:0b940aff3bb8 155 for (i=0; i < challengeLen; i++) {
phonemacro 10:0b940aff3bb8 156 // if (!(i % 4))
phonemacro 10:0b940aff3bb8 157 // printf("\r\n ");
phonemacro 10:0b940aff3bb8 158 // printf("%02X ",outData[i]);
phonemacro 10:0b940aff3bb8 159 }
phonemacro 10:0b940aff3bb8 160 }
phonemacro 7:5b7f7ec9efe0 161
phonemacro 7:5b7f7ec9efe0 162
phonemacro 12:fc888315e5fd 163 void executeSha256(MAX8614X &m, uint8_t *challenge, unsigned int challengeLen, bool romID)
phonemacro 7:5b7f7ec9efe0 164 {
phonemacro 10:0b940aff3bb8 165 int i, j, k;
phonemacro 7:5b7f7ec9efe0 166 uint8_t macData[256];
phonemacro 10:0b940aff3bb8 167 uint8_t inData[256];
phonemacro 7:5b7f7ec9efe0 168 uint8_t xData[256];
phonemacro 10:0b940aff3bb8 169 uint32_t x32Data[64];
phonemacro 7:5b7f7ec9efe0 170 uint32_t tmpData;
phonemacro 10:0b940aff3bb8 171 const unsigned int responseLen32 = 8;
phonemacro 7:5b7f7ec9efe0 172 uint8_t data[5];
phonemacro 11:ec7998257ec2 173
phonemacro 13:97854f761347 174 //- Enable SHA_DONE Interrupt
phonemacro 7:5b7f7ec9efe0 175 m.writeRegister(MAX8614X::MAX8614X_INT_ENABLE2_REG, MAX8614X::MAX8614X_IE_SHA_DONE_EN);
phonemacro 7:5b7f7ec9efe0 176
phonemacro 7:5b7f7ec9efe0 177 m.writeRegister(MAX8614X::MAX8614X_INT_ENABLE1_REG, 0); // Disable all other interrupts
phonemacro 7:5b7f7ec9efe0 178
phonemacro 13:97854f761347 179 //- Enable SHA_EN bit.
phonemacro 7:5b7f7ec9efe0 180 m.writeRegister(MAX8614X::MAX8614X_SHA_CFG_REG,MAX8614X::MAX8614X_SHACFG_SHA_EN);
phonemacro 7:5b7f7ec9efe0 181
phonemacro 13:97854f761347 182 //- Write 160-bit random challenge value to RAM using registers MEM_IDX and MEM_DATA.
phonemacro 7:5b7f7ec9efe0 183 // Enable Memory Write, Select Bank 0, address 0x00 to 0xFF
phonemacro 7:5b7f7ec9efe0 184 m.writeRegister(MAX8614X::MAX8614X_MEMORY_CONTROL_REG, MAX8614X::MAX8614X_MEMCNTRL_WR_EN_MASK | MAX8614X::MAX8614X_MEMCNTRL_BANK0_MASK);
phonemacro 7:5b7f7ec9efe0 185
phonemacro 7:5b7f7ec9efe0 186 printf("\r\n Raw Input Data\r\n\r\n");
phonemacro 7:5b7f7ec9efe0 187 for (i = 0; i < challengeLen; i++) {
phonemacro 10:0b940aff3bb8 188 if (!(i % 4))
phonemacro 10:0b940aff3bb8 189 printf("\r\n ");
phonemacro 10:0b940aff3bb8 190 printf("%02x", challenge[i]);
phonemacro 7:5b7f7ec9efe0 191 }
phonemacro 7:5b7f7ec9efe0 192 printf("\r\n");
phonemacro 10:0b940aff3bb8 193 #if 0
phonemacro 7:5b7f7ec9efe0 194 k = 0;
phonemacro 10:0b940aff3bb8 195 for (i = 0; i < (challengeLen/4); i++) {
phonemacro 10:0b940aff3bb8 196 for (j = 3; j >= 0; j--) {
phonemacro 10:0b940aff3bb8 197
phonemacro 10:0b940aff3bb8 198 inData[j+(i*4)] = challenge[k];
phonemacro 10:0b940aff3bb8 199 k++;
phonemacro 7:5b7f7ec9efe0 200 }
phonemacro 10:0b940aff3bb8 201 }
phonemacro 10:0b940aff3bb8 202 #endif
phonemacro 10:0b940aff3bb8 203
phonemacro 10:0b940aff3bb8 204 transformData(challenge, xData, challengeLen);
phonemacro 7:5b7f7ec9efe0 205
phonemacro 7:5b7f7ec9efe0 206 printf("\r\n Transformed Input Data\r\n\r\n");
phonemacro 10:0b940aff3bb8 207 for (i = 0; i < challengeLen; i++) {
phonemacro 7:5b7f7ec9efe0 208 if (!(i % 4))
phonemacro 7:5b7f7ec9efe0 209 printf("\r\n ");
phonemacro 7:5b7f7ec9efe0 210 printf("%02x", xData[i]);
phonemacro 7:5b7f7ec9efe0 211 }
phonemacro 7:5b7f7ec9efe0 212 printf("\r\n ");
phonemacro 7:5b7f7ec9efe0 213 printf("\r\n ");
phonemacro 7:5b7f7ec9efe0 214
phonemacro 10:0b940aff3bb8 215 for (i = 0; i < (challengeLen); i++) {
phonemacro 7:5b7f7ec9efe0 216 m.writeRegister(MAX8614X::MAX8614X_MEMORY_INDEX_REG, i);
phonemacro 7:5b7f7ec9efe0 217 m.writeRegister(MAX8614X::MAX8614X_MEMORY_DATA_REG, xData[i]);
phonemacro 10:0b940aff3bb8 218 //}
phonemacro 10:0b940aff3bb8 219 }
phonemacro 7:5b7f7ec9efe0 220 printf("%\r\n");
phonemacro 7:5b7f7ec9efe0 221 // The message block consists of a 160-bit secret, a 160-bit challenge and 192 bits of constant data. Optionally, the 64-bit
phonemacro 7:5b7f7ec9efe0 222 // ROM ID replaces 64 of the 192 bits of constant data used in the hash operation. 16 bits out of the 160-bit secret and 16
phonemacro 7:5b7f7ec9efe0 223 // bits of ROM ID are programmable–8 bits each in metal and 8 bits each in OTP bits
phonemacro 13:97854f761347 224 //- Write command, with ROM ID (0x35) or without ROM ID (0x36), to SHA_CMD register
phonemacro 12:fc888315e5fd 225 if (romID) {
phonemacro 12:fc888315e5fd 226 printf("ROMID \r\n");
phonemacro 13:97854f761347 227 // m.writeRegister(MAX8614X::MAX8614X_SHA_CMD_REG, MAX8614X::MAX8614X_SHACMD_MAC_ROM_ID);
phonemacro 12:fc888315e5fd 228 m.writeRegister(MAX8614X::MAX8614X_SHA_CMD_REG, MAX8614X::MAX8614X_SHACMD_MAC_ROM_ID);
phonemacro 12:fc888315e5fd 229 wait(1);
phonemacro 12:fc888315e5fd 230 }
phonemacro 12:fc888315e5fd 231 else
phonemacro 12:fc888315e5fd 232 {
phonemacro 12:fc888315e5fd 233 printf("no ROMID \r\n");
phonemacro 13:97854f761347 234 // m.writeRegister(MAX8614X::MAX8614X_SHA_CMD_REG,MAX8614X::MAX8614X_SHACMD_MAC_NO_ROM_ID);
phonemacro 12:fc888315e5fd 235 m.writeRegister(MAX8614X::MAX8614X_SHA_CMD_REG,MAX8614X::MAX8614X_SHACMD_MAC_NO_ROM_ID);
phonemacro 12:fc888315e5fd 236 wait(1);
phonemacro 12:fc888315e5fd 237 }
phonemacro 12:fc888315e5fd 238
phonemacro 12:fc888315e5fd 239
phonemacro 12:fc888315e5fd 240 // m.writeRegister(MAX8614X::MAX8614X_SHA_CMD_REG,MAX8614X::MAX8614X_SHACMD_MAC_ROM_ID);
phonemacro 7:5b7f7ec9efe0 241 // m.writeRegister(MAX8614X::MAX8614X_SHA_CMD_REG,MAX8614X::MAX8614X_SHACMD_MAC_NO_ROM_ID);
phonemacro 7:5b7f7ec9efe0 242
phonemacro 7:5b7f7ec9efe0 243
phonemacro 10:0b940aff3bb8 244 m.readRegister(MAX8614X::MAX8614X_SHA_CMD_REG, data, 1);
phonemacro 14:1939758a03cf 245 /// printf("sha cmd reg should be 0x35 mac rom id, reg %02X = %02X\r\n", MAX8614X::MAX8614X_SHA_CMD_REG, data[0]);
phonemacro 10:0b940aff3bb8 246 m.readRegister(MAX8614X::MAX8614X_INT_STATUS2_REG, data, 1);
phonemacro 14:1939758a03cf 247 /// printf("int status2, reg %02X = %X\r\n", MAX8614X::MAX8614X_INT_STATUS2_REG, data[0]);
phonemacro 7:5b7f7ec9efe0 248 //● Write 1 to SHA_START and 1 to SHA_EN bit.
phonemacro 7:5b7f7ec9efe0 249 m.writeRegister(MAX8614X::MAX8614X_SHA_CFG_REG,MAX8614X::MAX8614X_SHACFG_SHA_EN | MAX8614X::MAX8614X_SHACFG_SHA_START);
phonemacro 10:0b940aff3bb8 250 m.readRegister(MAX8614X::MAX8614X_SHA_CFG_REG, data, 1);
phonemacro 14:1939758a03cf 251 /// printf("sha CFG reg should be 0x3, reg %02X = %02X\r\n", MAX8614X::MAX8614X_SHA_CFG_REG, data[0]);
phonemacro 7:5b7f7ec9efe0 252
phonemacro 10:0b940aff3bb8 253 //● Wait for SHA_DONE interrupt.
phonemacro 10:0b940aff3bb8 254 m.clearShaComplete();
phonemacro 7:5b7f7ec9efe0 255 data[0] = 0;
phonemacro 10:0b940aff3bb8 256 // while(!m.isShaComplete()) {
phonemacro 10:0b940aff3bb8 257 while(!m.isShaComplete() && !data[0] ) {
phonemacro 7:5b7f7ec9efe0 258 m.readRegister(MAX8614X::MAX8614X_INT_STATUS2_REG, data, 1);
phonemacro 10:0b940aff3bb8 259 printf("int status2, reg %02X = %X\r\n", MAX8614X::MAX8614X_INT_STATUS2_REG, data[0]);
phonemacro 10:0b940aff3bb8 260
phonemacro 7:5b7f7ec9efe0 261 }
phonemacro 7:5b7f7ec9efe0 262 // ● Read 256 MAC value from RAM using registers MEM_IDX and MEM_DATA.
phonemacro 10:0b940aff3bb8 263 printf("\r\n Raw Output\r\n\r\n");
phonemacro 7:5b7f7ec9efe0 264 for (i = 64; i < 64+32; i++) {
phonemacro 7:5b7f7ec9efe0 265 if (!(i % 4))
phonemacro 7:5b7f7ec9efe0 266 printf("\r\n ");
phonemacro 7:5b7f7ec9efe0 267 m.writeRegister(MAX8614X::MAX8614X_MEMORY_INDEX_REG, i);
phonemacro 7:5b7f7ec9efe0 268 m.readRegister(MAX8614X::MAX8614X_MEMORY_DATA_REG, data, 1);
phonemacro 10:0b940aff3bb8 269 xData[i-64] = data[0];
phonemacro 7:5b7f7ec9efe0 270 printf("%02x", data[0]);
phonemacro 7:5b7f7ec9efe0 271 }
phonemacro 10:0b940aff3bb8 272 printf("%\r\n");
phonemacro 10:0b940aff3bb8 273
phonemacro 10:0b940aff3bb8 274 transformData(xData,macData, 32);
phonemacro 10:0b940aff3bb8 275 #if 0
phonemacro 10:0b940aff3bb8 276 printf("\r\n Formatted Response\r\n\r\n");
phonemacro 10:0b940aff3bb8 277 for (i = 0; i < 32; i++) {
phonemacro 10:0b940aff3bb8 278 if (!(i % 4))
phonemacro 10:0b940aff3bb8 279 printf("\r\n ");
phonemacro 10:0b940aff3bb8 280 printf("%02x", macData[i]);
phonemacro 10:0b940aff3bb8 281 }
phonemacro 10:0b940aff3bb8 282 printf("\r\n\r\n");
phonemacro 10:0b940aff3bb8 283
phonemacro 10:0b940aff3bb8 284 #endif
phonemacro 10:0b940aff3bb8 285 // transform data to Little-Endian
phonemacro 10:0b940aff3bb8 286 k = 0;
phonemacro 10:0b940aff3bb8 287 for (i = 0; i < (responseLen32); i++) {
phonemacro 10:0b940aff3bb8 288 tmpData = challenge[i];
phonemacro 10:0b940aff3bb8 289 x32Data[i] = 0;
phonemacro 10:0b940aff3bb8 290 for (j = 3; j >= 0; j--) {
phonemacro 10:0b940aff3bb8 291 x32Data[i] = x32Data[i] << 8;
phonemacro 10:0b940aff3bb8 292 x32Data[i] |= macData[k] & 0xFF;
phonemacro 10:0b940aff3bb8 293 k++;
phonemacro 10:0b940aff3bb8 294 }
phonemacro 10:0b940aff3bb8 295
phonemacro 10:0b940aff3bb8 296 }
phonemacro 10:0b940aff3bb8 297
phonemacro 10:0b940aff3bb8 298 printf("\r\n Formatted Response\r\n\r\n");
phonemacro 10:0b940aff3bb8 299 for (i = 0; i < responseLen32; i++) {
phonemacro 10:0b940aff3bb8 300 printf(" %08X \r\n",x32Data[i]);
phonemacro 10:0b940aff3bb8 301 }
phonemacro 10:0b940aff3bb8 302
phonemacro 10:0b940aff3bb8 303
phonemacro 7:5b7f7ec9efe0 304 }