Ashwath M Pavithran / Mbed OS csi066_rev0p3_harald_prog

Publishing for sharing with Harald

Dependencies:   csi059

adc_test.cpp@4:1c48c9fa44fc, 2020-05-22 (annotated)

Committer:
CactusSemi
Date:
Fri May 22 19:19:45 2020 +0000
Revision:
4:1c48c9fa44fc
Publishing for sharing with Harald

Who changed what in which revision?

UserRevisionLine numberNew contents of line
CactusSemi 4:1c48c9fa44fc 1 #include "mbed.h"
CactusSemi 4:1c48c9fa44fc 2
CactusSemi 4:1c48c9fa44fc 3 extern Serial pc;
CactusSemi 4:1c48c9fa44fc 4 extern int frequ; //unit kHz
CactusSemi 4:1c48c9fa44fc 5 extern char dev_addr; //fixed
CactusSemi 4:1c48c9fa44fc 6
CactusSemi 4:1c48c9fa44fc 7 char get_half_byte(int *); //defined in I2C_read.cpp
CactusSemi 4:1c48c9fa44fc 8 char get_byte(int *); //defined in EasyFuse_Prog.cpp
CactusSemi 4:1c48c9fa44fc 9 void i2c_write_fn(I2C *, char , char );//defined in Easy Fuse Prog
CactusSemi 4:1c48c9fa44fc 10 char i2c_read_fn(I2C *, char ); //defined in Easy Fuse Prog
CactusSemi 4:1c48c9fa44fc 11 void read_bit(int ); // defined in I2C_hot_read
CactusSemi 4:1c48c9fa44fc 12
CactusSemi 4:1c48c9fa44fc 13 void i2c_hotread_fn(I2C *i2c_obj, char ptr, int bit_position) {
CactusSemi 4:1c48c9fa44fc 14 int flag1;
CactusSemi 4:1c48c9fa44fc 15 char temp;
CactusSemi 4:1c48c9fa44fc 16 wait_us(10);
CactusSemi 4:1c48c9fa44fc 17 (*i2c_obj).start();
CactusSemi 4:1c48c9fa44fc 18 flag1 = (*i2c_obj).write(dev_addr);
CactusSemi 4:1c48c9fa44fc 19 if (flag1 != 1) pc.printf("\n\n\n\r\tNo Ack for dev addr :(");
CactusSemi 4:1c48c9fa44fc 20 flag1 = (*i2c_obj).write(ptr);
CactusSemi 4:1c48c9fa44fc 21 if (flag1 != 1) pc.printf("\n\n\r\tNo Ack reg pointer :(");
CactusSemi 4:1c48c9fa44fc 22 (*i2c_obj).stop();
CactusSemi 4:1c48c9fa44fc 23 wait_us(300);
CactusSemi 4:1c48c9fa44fc 24 pc.printf("\n\n\n\r\tPress 's' to start hot read : ");
CactusSemi 4:1c48c9fa44fc 25 while(temp!='s') {
CactusSemi 4:1c48c9fa44fc 26 temp = pc.getc();
CactusSemi 4:1c48c9fa44fc 27 }
CactusSemi 4:1c48c9fa44fc 28 //(*i2c_obj).start();
CactusSemi 4:1c48c9fa44fc 29 //flag1 = (*i2c_obj).write(dev_addr | 0x01); //lsb 1 for read
CactusSemi 4:1c48c9fa44fc 30 //if (flag1 != 1) pc.printf("\n\n\r\tNo Ack for dev addr :(");
CactusSemi 4:1c48c9fa44fc 31 read_bit(bit_position); // hot-read function
CactusSemi 4:1c48c9fa44fc 32 (*i2c_obj).stop();
CactusSemi 4:1c48c9fa44fc 33 }
CactusSemi 4:1c48c9fa44fc 34
CactusSemi 4:1c48c9fa44fc 35 void draw_sig_line() {
CactusSemi 4:1c48c9fa44fc 36 pc.printf("\033[%dm ", 33);//change text color to yellow
CactusSemi 4:1c48c9fa44fc 37 pc.printf("\n\n\n\n\r \304");
CactusSemi 4:1c48c9fa44fc 38 for ( int i = 0; i<80; i++) pc.printf("\304");
CactusSemi 4:1c48c9fa44fc 39 pc.printf("\033[%dm ", 32);//change text color to green
CactusSemi 4:1c48c9fa44fc 40 pc.printf("\n\n\r");
CactusSemi 4:1c48c9fa44fc 41 }
CactusSemi 4:1c48c9fa44fc 42
CactusSemi 4:1c48c9fa44fc 43 void get_new_val (char *reg_val06) {
CactusSemi 4:1c48c9fa44fc 44 int flag1 = 0;
CactusSemi 4:1c48c9fa44fc 45 pc.printf("\n\n\n\r\t\033[%dmChoose a Range trim from the above table (\033[%dmRecommended values are highlighted in red\033[%dm)",36,31,36);
CactusSemi 4:1c48c9fa44fc 46 while (!flag1) {
CactusSemi 4:1c48c9fa44fc 47 pc.printf("\n\n\r\tEnter new Range trim in hex (00 to ff): 0x");
CactusSemi 4:1c48c9fa44fc 48 *reg_val06 = get_byte(&flag1);
CactusSemi 4:1c48c9fa44fc 49 if ( *reg_val06 > 0x1F ) flag1 = 0; //Range trim is only 5 bits
CactusSemi 4:1c48c9fa44fc 50 if (flag1 == 0) pc.printf(" \033[%dm Invalid Chracter!! No worries, let us try again \033[%dm",41,40);
CactusSemi 4:1c48c9fa44fc 51 }
CactusSemi 4:1c48c9fa44fc 52 pc.printf("\033[%dm",32);
CactusSemi 4:1c48c9fa44fc 53 }
CactusSemi 4:1c48c9fa44fc 54
CactusSemi 4:1c48c9fa44fc 55 void adc_meas (I2C *i2c_obj, char count, char lsb) {
CactusSemi 4:1c48c9fa44fc 56 char adc_op;
CactusSemi 4:1c48c9fa44fc 57 int voc;
CactusSemi 4:1c48c9fa44fc 58 char temp;
CactusSemi 4:1c48c9fa44fc 59
CactusSemi 4:1c48c9fa44fc 60 voc = lsb * count;
CactusSemi 4:1c48c9fa44fc 61
CactusSemi 4:1c48c9fa44fc 62 temp = 0;
CactusSemi 4:1c48c9fa44fc 63 pc.printf("\n\n\n\r\t\033[%dmSet Voc = %d mV (%d mV x %d). Press 'c' to continue: \033[%dm", 36, voc, lsb, count, 32);
CactusSemi 4:1c48c9fa44fc 64 while ( temp!='c') {
CactusSemi 4:1c48c9fa44fc 65 temp = pc.getc();
CactusSemi 4:1c48c9fa44fc 66 }
CactusSemi 4:1c48c9fa44fc 67 i2c_write_fn(i2c_obj,0x14,count - 2); //Writing starting value in ADC
CactusSemi 4:1c48c9fa44fc 68 wait_ms(5);
CactusSemi 4:1c48c9fa44fc 69 i2c_write_fn(i2c_obj,0x0D,0x03); //tm_adc_en = tm_adc_go = 1; start conversion
CactusSemi 4:1c48c9fa44fc 70 wait_ms(20); //to make sure conversion is complete
CactusSemi 4:1c48c9fa44fc 71 adc_op = i2c_read_fn(i2c_obj,0x14);
CactusSemi 4:1c48c9fa44fc 72 pc.printf("\n\n\n\r\t\033[%dmadc_op%d_%dmv = 0x%2.2X\033[%dm", 45, count, lsb, adc_op, 40);//displaying in Magenta background
CactusSemi 4:1c48c9fa44fc 73 return;
CactusSemi 4:1c48c9fa44fc 74 }
CactusSemi 4:1c48c9fa44fc 75
CactusSemi 4:1c48c9fa44fc 76
CactusSemi 4:1c48c9fa44fc 77 void adc_test() {
CactusSemi 4:1c48c9fa44fc 78
CactusSemi 4:1c48c9fa44fc 79 I2C i2c(p9,p10);
CactusSemi 4:1c48c9fa44fc 80 char temp;
CactusSemi 4:1c48c9fa44fc 81 char reg_val06;
CactusSemi 4:1c48c9fa44fc 82 char reg_val06_max = 0x1F; //for debug, change to 0x1F
CactusSemi 4:1c48c9fa44fc 83 char reg_val05;
CactusSemi 4:1c48c9fa44fc 84 char reg_val05_strt;
CactusSemi 4:1c48c9fa44fc 85 char reg_val04;
CactusSemi 4:1c48c9fa44fc 86 char reg_val07;
CactusSemi 4:1c48c9fa44fc 87 char adc_op31[32];
CactusSemi 4:1c48c9fa44fc 88 char adc_op223[32];
CactusSemi 4:1c48c9fa44fc 89 char d_adc_op192[32] = {0x00};
CactusSemi 4:1c48c9fa44fc 90 char adc_op8 = 0x07;
CactusSemi 4:1c48c9fa44fc 91 char adc_op8_old;
CactusSemi 4:1c48c9fa44fc 92 char adc_op8_disp[32];
CactusSemi 4:1c48c9fa44fc 93 char d_adc_op = 0x00;
CactusSemi 4:1c48c9fa44fc 94 char d_adc_op_old = 0x00;
CactusSemi 4:1c48c9fa44fc 95 int i = 0;
CactusSemi 4:1c48c9fa44fc 96 int x = 0;
CactusSemi 4:1c48c9fa44fc 97
CactusSemi 4:1c48c9fa44fc 98 i2c.frequency((frequ/2)*1000);
CactusSemi 4:1c48c9fa44fc 99 LPC_PINCON->PINMODE_OD0 = (LPC_PINCON->PINMODE_OD0 | 0x0003); // To make p9 & P10 open_drain
CactusSemi 4:1c48c9fa44fc 100 i2c.stop(); //add a stop after hot-read
CactusSemi 4:1c48c9fa44fc 101
CactusSemi 4:1c48c9fa44fc 102 pc.printf("\033[%dm ", 31);//change text color to red
CactusSemi 4:1c48c9fa44fc 103 pc.printf("\n\n\n\r\tStarting adc test \n\r\t");
CactusSemi 4:1c48c9fa44fc 104 for ( i = 0; i<18; i++) pc.printf("\334");
CactusSemi 4:1c48c9fa44fc 105 pc.printf("\n\n\r\033[%dm", 32);//change text color to blue
CactusSemi 4:1c48c9fa44fc 106
CactusSemi 4:1c48c9fa44fc 107 i2c_write_fn(&i2c,0x17,0x03); //dmux op = adc_conversion. DATA2_CLK will be high when adc conversion is ongoing
CactusSemi 4:1c48c9fa44fc 108
CactusSemi 4:1c48c9fa44fc 109 pc.printf("\033[%dm", 34);//change text color to blue
CactusSemi 4:1c48c9fa44fc 110 pc.printf("\n\n\n\r\tConditions: \n\r\t");
CactusSemi 4:1c48c9fa44fc 111 for ( i = 0; i<13; i++) pc.printf("\304");
CactusSemi 4:1c48c9fa44fc 112 pc.printf("\n\n\r\t 1. ASIC in test-mode ");
CactusSemi 4:1c48c9fa44fc 113 pc.printf("\n\n\r\t 2. Short input Rin (5ohms) resistor ");
CactusSemi 4:1c48c9fa44fc 114 pc.printf("\n\n\r\t 3. Please Monitor DATA2_CLK on oscilloscope. DATA2_CLK = 'adc_conversion'");
CactusSemi 4:1c48c9fa44fc 115 pc.printf("\n\n\r\t 4. Positive input polarity");
CactusSemi 4:1c48c9fa44fc 116 pc.printf("\033[%dm ", 32);//change text color to green
CactusSemi 4:1c48c9fa44fc 117 temp = 0;
CactusSemi 4:1c48c9fa44fc 118 pc.printf("\n\n\n\r\t\033[%dmPress 'c' to continue: \033[%dm",36,32);
CactusSemi 4:1c48c9fa44fc 119 while ( temp!='c') {
CactusSemi 4:1c48c9fa44fc 120 temp = pc.getc();
CactusSemi 4:1c48c9fa44fc 121 }
CactusSemi 4:1c48c9fa44fc 122 i2c_write_fn(&i2c,0x0F,0x00); //Disabling Flyback
CactusSemi 4:1c48c9fa44fc 123
CactusSemi 4:1c48c9fa44fc 124 //reg_val06 = i2c_read_fn(&i2c,0x06); //reading the initial range trim
CactusSemi 4:1c48c9fa44fc 125 i2c_write_fn(&i2c,0x0D,0x01); //tm_adc_en = 1
CactusSemi 4:1c48c9fa44fc 126
CactusSemi 4:1c48c9fa44fc 127 draw_sig_line();
CactusSemi 4:1c48c9fa44fc 128
CactusSemi 4:1c48c9fa44fc 129 //*****************************************************************
CactusSemi 4:1c48c9fa44fc 130 //****** ADC Range trim test
CactusSemi 4:1c48c9fa44fc 131 //*****************************************************************
CactusSemi 4:1c48c9fa44fc 132
CactusSemi 4:1c48c9fa44fc 133 pc.printf("\033[%dm ", 31);//change text color to red
CactusSemi 4:1c48c9fa44fc 134 pc.printf("\n\n\n\r\tStarting Range trim \n\r\t");
CactusSemi 4:1c48c9fa44fc 135 for ( i = 0; i<19; i++) pc.printf("\315");
CactusSemi 4:1c48c9fa44fc 136 pc.printf("\033[%dm ", 32);//change text color to green
CactusSemi 4:1c48c9fa44fc 137
CactusSemi 4:1c48c9fa44fc 138 temp = 0;
CactusSemi 4:1c48c9fa44fc 139 pc.printf("\n\n\n\r\t\033[%dmSet Voc = 63mV (2mV x 31.5). Press 'c' to continue: \033[%dm",36,32);
CactusSemi 4:1c48c9fa44fc 140 while ( temp!='c') {
CactusSemi 4:1c48c9fa44fc 141 temp = pc.getc();
CactusSemi 4:1c48c9fa44fc 142 }
CactusSemi 4:1c48c9fa44fc 143 //Making sure input polarity detector outputs are correct.
CactusSemi 4:1c48c9fa44fc 144 i2c_write_fn(&i2c,0x10,0x10); //tm_PolComp_en = 1
CactusSemi 4:1c48c9fa44fc 145 wait_ms(1);
CactusSemi 4:1c48c9fa44fc 146 i2c_write_fn(&i2c,0x10,0x00); //tm_PolComp_en = 0
CactusSemi 4:1c48c9fa44fc 147 pc.printf("\n\n\r\tFinding ADC outputs for all adc range with input = 63mV");
CactusSemi 4:1c48c9fa44fc 148 //Finding ADC outputs for all adc range with input = 63mV
CactusSemi 4:1c48c9fa44fc 149
CactusSemi 4:1c48c9fa44fc 150 for ( reg_val06 = 0x00; reg_val06 <= reg_val06_max; reg_val06 = (reg_val06 + 1)) {
CactusSemi 4:1c48c9fa44fc 151
CactusSemi 4:1c48c9fa44fc 152 i2c_write_fn(&i2c,0x06,reg_val06);
CactusSemi 4:1c48c9fa44fc 153
CactusSemi 4:1c48c9fa44fc 154 //Write initial value into ADC register
CactusSemi 4:1c48c9fa44fc 155 if ( reg_val06 == 0x00 ) i2c_write_fn(&i2c,0x14,0x64); //starting value = 100. ADC reading will reduce as range trim increases
CactusSemi 4:1c48c9fa44fc 156 else i2c_write_fn(&i2c,0x14,adc_op31[(reg_val06 - 1)]); //starting with previous measurement value
CactusSemi 4:1c48c9fa44fc 157
CactusSemi 4:1c48c9fa44fc 158 wait_ms(5);
CactusSemi 4:1c48c9fa44fc 159 i2c_write_fn(&i2c,0x0D,0x03); //tm_adc_en = tm_adc_go = 1; start conversion
CactusSemi 4:1c48c9fa44fc 160 wait_ms(20); //to make sure conversion is complete
CactusSemi 4:1c48c9fa44fc 161 adc_op31[reg_val06] = i2c_read_fn(&i2c,0x14);
CactusSemi 4:1c48c9fa44fc 162 pc.printf(".");
CactusSemi 4:1c48c9fa44fc 163 }
CactusSemi 4:1c48c9fa44fc 164
CactusSemi 4:1c48c9fa44fc 165 temp = 0;
CactusSemi 4:1c48c9fa44fc 166 pc.printf("\n\n\n\r\t\033[%dmSet Voc = 447mV (2mV x 223.5). Press 'c' to continue: \033[%dm",36,32);
CactusSemi 4:1c48c9fa44fc 167 while ( temp!='c') {
CactusSemi 4:1c48c9fa44fc 168 temp = pc.getc();
CactusSemi 4:1c48c9fa44fc 169 }
CactusSemi 4:1c48c9fa44fc 170 pc.printf("\n\n\r\tFinding ADC outputs for all adc range with input = 447mV");
CactusSemi 4:1c48c9fa44fc 171 for ( reg_val06 = 0x00; reg_val06 <= reg_val06_max; reg_val06 = (reg_val06 + 1)) {
CactusSemi 4:1c48c9fa44fc 172
CactusSemi 4:1c48c9fa44fc 173 i2c_write_fn(&i2c,0x06,reg_val06);
CactusSemi 4:1c48c9fa44fc 174
CactusSemi 4:1c48c9fa44fc 175 //Write initial value into ADC register
CactusSemi 4:1c48c9fa44fc 176 if ( reg_val06 == 0x00 ) i2c_write_fn(&i2c,0x14,0x64); //starting value = 100. ADC reading will reduce as range trim increases
CactusSemi 4:1c48c9fa44fc 177 else i2c_write_fn(&i2c,0x14,adc_op223[(reg_val06 - 1)]); //starting with previous measurement value
CactusSemi 4:1c48c9fa44fc 178
CactusSemi 4:1c48c9fa44fc 179 wait_ms(5);
CactusSemi 4:1c48c9fa44fc 180 i2c_write_fn(&i2c,0x0D,0x03); //tm_adc_en = tm_adc_go = 1; start conversion
CactusSemi 4:1c48c9fa44fc 181 wait_ms(20); //to make sure conversion is complete
CactusSemi 4:1c48c9fa44fc 182 adc_op223[reg_val06] = i2c_read_fn(&i2c,0x14);
CactusSemi 4:1c48c9fa44fc 183 d_adc_op192[reg_val06] = adc_op223[reg_val06] - adc_op31[reg_val06];
CactusSemi 4:1c48c9fa44fc 184 pc.printf(".");
CactusSemi 4:1c48c9fa44fc 185 }
CactusSemi 4:1c48c9fa44fc 186 //Printing results
CactusSemi 4:1c48c9fa44fc 187 pc.printf("\n\n\n\r\t\332");
CactusSemi 4:1c48c9fa44fc 188 for ( i = 0; i < 4; i++ ) {
CactusSemi 4:1c48c9fa44fc 189 for ( x = 0; x < 23; x++ ) pc.printf("\304");
CactusSemi 4:1c48c9fa44fc 190 pc.printf("\302");
CactusSemi 4:1c48c9fa44fc 191 }
CactusSemi 4:1c48c9fa44fc 192
CactusSemi 4:1c48c9fa44fc 193 pc.printf("\n\r\t\263\t\033[%dmRange Trim\033[%dm\t\263\t\033[%dmadc_op31\033[%dm\t\263\t\033[%dmadc_op223\033[%dm\t\263\t\033[%dmdelta_adc_op\033[%dm\t\263",34,32,34,32,34,32,34,32);
CactusSemi 4:1c48c9fa44fc 194
CactusSemi 4:1c48c9fa44fc 195 //d_adc_op192[3] = 0xC0; //added for debug. Remove!
CactusSemi 4:1c48c9fa44fc 196
CactusSemi 4:1c48c9fa44fc 197 for ( reg_val06 = 0x00; reg_val06 <= reg_val06_max; reg_val06 = (reg_val06 + 1)) {
CactusSemi 4:1c48c9fa44fc 198
CactusSemi 4:1c48c9fa44fc 199 pc.printf("\n\r\t\303");
CactusSemi 4:1c48c9fa44fc 200 for ( i = 0; i < 4; i++ ) {
CactusSemi 4:1c48c9fa44fc 201 for ( x = 0; x < 23; x++ ) pc.printf("\304");
CactusSemi 4:1c48c9fa44fc 202 if ( i < 3) pc.printf("\305");
CactusSemi 4:1c48c9fa44fc 203 else pc.printf("\264");
CactusSemi 4:1c48c9fa44fc 204 }
CactusSemi 4:1c48c9fa44fc 205 if ( (d_adc_op192[reg_val06] > 0xBE) && (d_adc_op192[reg_val06] < 0xC2))
CactusSemi 4:1c48c9fa44fc 206 pc.printf("\n\r\t\263\t\033[%dm 0x%2.2X\t\t\263\t 0x%2.2X\t\t\263\t 0x%2.2X\t\t\263\t 0x%2.2X\033[%dm\t\263", 31, reg_val06, adc_op31[reg_val06], adc_op223[reg_val06], d_adc_op192[reg_val06], 32);
CactusSemi 4:1c48c9fa44fc 207 else
CactusSemi 4:1c48c9fa44fc 208 pc.printf("\n\r\t\263\t 0x%2.2X\t\t\263\t 0x%2.2X\t\t\263\t 0x%2.2X\t\t\263\t 0x%2.2X\t\263", reg_val06, adc_op31[reg_val06], adc_op223[reg_val06], d_adc_op192[reg_val06]);
CactusSemi 4:1c48c9fa44fc 209 }
CactusSemi 4:1c48c9fa44fc 210
CactusSemi 4:1c48c9fa44fc 211 pc.printf("\n\r\t\300");
CactusSemi 4:1c48c9fa44fc 212 for ( i = 0; i < 4; i++ ) {
CactusSemi 4:1c48c9fa44fc 213 for ( x = 0; x < 23; x++ ) pc.printf("\304");
CactusSemi 4:1c48c9fa44fc 214 if ( i < 3) pc.printf("\301");
CactusSemi 4:1c48c9fa44fc 215 else pc.printf("\331");
CactusSemi 4:1c48c9fa44fc 216 }
CactusSemi 4:1c48c9fa44fc 217
CactusSemi 4:1c48c9fa44fc 218 get_new_val(&reg_val06);
CactusSemi 4:1c48c9fa44fc 219 i2c_write_fn(&i2c,0x06,reg_val06);
CactusSemi 4:1c48c9fa44fc 220
CactusSemi 4:1c48c9fa44fc 221
CactusSemi 4:1c48c9fa44fc 222 pc.printf("\n\n\n\r\t\033[%dmFinal Range trim = 0x%2.2X\033[%dm ", 45, reg_val06, 40);
CactusSemi 4:1c48c9fa44fc 223
CactusSemi 4:1c48c9fa44fc 224 pc.printf("\n\n\n\r\t\033[%dmDo you want to continue with offset trim. Press ",36);
CactusSemi 4:1c48c9fa44fc 225 pc.printf("\n\n\r\t 'c' - Continue ");
CactusSemi 4:1c48c9fa44fc 226 pc.printf("\n\n\r\t 'e' - Exit ");
CactusSemi 4:1c48c9fa44fc 227 pc.printf("\n\n\n\r\tYour Selection : \033[%dm",32);
CactusSemi 4:1c48c9fa44fc 228 temp = 0;
CactusSemi 4:1c48c9fa44fc 229 while ( temp!='c' && temp!='e') {
CactusSemi 4:1c48c9fa44fc 230 temp = pc.getc();
CactusSemi 4:1c48c9fa44fc 231 }
CactusSemi 4:1c48c9fa44fc 232 if (temp == 'e') return;
CactusSemi 4:1c48c9fa44fc 233
CactusSemi 4:1c48c9fa44fc 234 //*****************************************************************
CactusSemi 4:1c48c9fa44fc 235 //****** ADC Offset trim test
CactusSemi 4:1c48c9fa44fc 236 //*****************************************************************
CactusSemi 4:1c48c9fa44fc 237
CactusSemi 4:1c48c9fa44fc 238
CactusSemi 4:1c48c9fa44fc 239 draw_sig_line();
CactusSemi 4:1c48c9fa44fc 240
CactusSemi 4:1c48c9fa44fc 241 pc.printf("\033[%dm ", 31);//change text color to red
CactusSemi 4:1c48c9fa44fc 242 pc.printf("\n\n\n\n\r\tStarting Offset trim \n\r\t");
CactusSemi 4:1c48c9fa44fc 243 for ( i = 0; i<19; i++) pc.printf("\315");
CactusSemi 4:1c48c9fa44fc 244 pc.printf("\033[%dm ", 32);//change text color to green
CactusSemi 4:1c48c9fa44fc 245
CactusSemi 4:1c48c9fa44fc 246 temp = 0;
CactusSemi 4:1c48c9fa44fc 247 pc.printf("\n\n\n\r\t\033[%dmSet Voc = 16mV (2mV x 8). Press 'c' to continue: \033[%dm",36,32);
CactusSemi 4:1c48c9fa44fc 248 while ( temp!='c') {
CactusSemi 4:1c48c9fa44fc 249 temp = pc.getc();
CactusSemi 4:1c48c9fa44fc 250 }
CactusSemi 4:1c48c9fa44fc 251 // determine trim direction
CactusSemi 4:1c48c9fa44fc 252
CactusSemi 4:1c48c9fa44fc 253 i2c_write_fn(&i2c,0x14,adc_op8); //Writing starting value in ADC
CactusSemi 4:1c48c9fa44fc 254 pc.printf("\n\n\r\tAbout to start ADC conversion. 0 -> 1 -> 0 transition should be seen on DATA2_CLK");
CactusSemi 4:1c48c9fa44fc 255 wait_ms(5);
CactusSemi 4:1c48c9fa44fc 256 i2c_write_fn(&i2c,0x0D,0x03); //tm_adc_en = tm_adc_go = 1; start conversion
CactusSemi 4:1c48c9fa44fc 257 wait_ms(20); //to make sure conversion is complete
CactusSemi 4:1c48c9fa44fc 258 adc_op8 = i2c_read_fn(&i2c,0x14);
CactusSemi 4:1c48c9fa44fc 259 pc.printf("\n\n\r\tadc_op8 = 0x%2.2X ",adc_op8);
CactusSemi 4:1c48c9fa44fc 260
CactusSemi 4:1c48c9fa44fc 261 temp = 0;
CactusSemi 4:1c48c9fa44fc 262 if (adc_op8 == 0x08) {
CactusSemi 4:1c48c9fa44fc 263 temp = 1; // no trimming procedure
CactusSemi 4:1c48c9fa44fc 264 pc.printf("\n\n\r\tNo Trimming Required. Woohoo");
CactusSemi 4:1c48c9fa44fc 265 reg_val05 = i2c_read_fn(&i2c,0x05);
CactusSemi 4:1c48c9fa44fc 266 adc_op8_disp[reg_val05] = adc_op8; // for displaying
CactusSemi 4:1c48c9fa44fc 267 }
CactusSemi 4:1c48c9fa44fc 268
CactusSemi 4:1c48c9fa44fc 269
CactusSemi 4:1c48c9fa44fc 270 adc_op8_old = adc_op8; //storing previous value in case the trim loop is not entered
CactusSemi 4:1c48c9fa44fc 271
CactusSemi 4:1c48c9fa44fc 272
CactusSemi 4:1c48c9fa44fc 273 if (adc_op8_old < 0x08) {
CactusSemi 4:1c48c9fa44fc 274 pc.printf("\n\n\r\tadc_op08 < 0x08; need to perform positive trim");
CactusSemi 4:1c48c9fa44fc 275 reg_val05 = 0x10;
CactusSemi 4:1c48c9fa44fc 276 adc_op8 = 0x10;//decimal 16. Set for proper function of the trim procedure
CactusSemi 4:1c48c9fa44fc 277 }
CactusSemi 4:1c48c9fa44fc 278
CactusSemi 4:1c48c9fa44fc 279 if (adc_op8_old > 0x08) {
CactusSemi 4:1c48c9fa44fc 280 pc.printf("\n\n\r\tadc_op08 > 0x08; need to perform negative trim");
CactusSemi 4:1c48c9fa44fc 281 reg_val05 = 0x00;
CactusSemi 4:1c48c9fa44fc 282 //adc_op8 = 0x00;
CactusSemi 4:1c48c9fa44fc 283 }
CactusSemi 4:1c48c9fa44fc 284
CactusSemi 4:1c48c9fa44fc 285 reg_val05_strt = reg_val05; //storing the starting value
CactusSemi 4:1c48c9fa44fc 286
CactusSemi 4:1c48c9fa44fc 287 //Start trim
CactusSemi 4:1c48c9fa44fc 288
CactusSemi 4:1c48c9fa44fc 289 while (temp != 1) {
CactusSemi 4:1c48c9fa44fc 290 i2c_write_fn(&i2c,0x05,reg_val05); //programming offset trim
CactusSemi 4:1c48c9fa44fc 291 adc_op8_old = adc_op8; //storing previous value
CactusSemi 4:1c48c9fa44fc 292 i2c_write_fn(&i2c,0x14,adc_op8); //Writing starting value in ADC
CactusSemi 4:1c48c9fa44fc 293 wait_ms(5);
CactusSemi 4:1c48c9fa44fc 294 i2c_write_fn(&i2c,0x0D,0x03); //tm_adc_en = tm_adc_go = 1; start conversion
CactusSemi 4:1c48c9fa44fc 295 wait_ms(20); //to make sure conversion is complete
CactusSemi 4:1c48c9fa44fc 296 adc_op8 = i2c_read_fn(&i2c,0x14);
CactusSemi 4:1c48c9fa44fc 297 adc_op8_disp[reg_val05] = adc_op8; // for displaying
CactusSemi 4:1c48c9fa44fc 298
CactusSemi 4:1c48c9fa44fc 299 if ((adc_op8 == 0x08) || ((adc_op8 > 0x08) && (adc_op8_old < 0x08)) || ((adc_op8 < 0x08) && (adc_op8_old > 0x08))) {
CactusSemi 4:1c48c9fa44fc 300 // pc.printf("\n\n\r\tI'm exiting.");
CactusSemi 4:1c48c9fa44fc 301 // pc.printf("\n\r\t\t\263\t adc_op8 = 0x%2.2X\t\t\263\t adc_op8_old = 0x%2.2X\t\t\263 ", adc_op8, adc_op8_old);
CactusSemi 4:1c48c9fa44fc 302 break; // exit loop
CactusSemi 4:1c48c9fa44fc 303 }
CactusSemi 4:1c48c9fa44fc 304 if ((reg_val05 == 0x0F) || (reg_val05 == 0x1F)) {
CactusSemi 4:1c48c9fa44fc 305 pc.printf("\n\n\r\tTest Failed.");
CactusSemi 4:1c48c9fa44fc 306 break; // exit loop
CactusSemi 4:1c48c9fa44fc 307 }
CactusSemi 4:1c48c9fa44fc 308 reg_val05 = reg_val05 + 0x01;
CactusSemi 4:1c48c9fa44fc 309 // pc.printf("\n\r\t\t\263\t reg_val05 = 0x%2.2X\t\t\263\t adc_op8 = 0x%2.2X\t\t\263 ", reg_val05, adc_op8);
CactusSemi 4:1c48c9fa44fc 310
CactusSemi 4:1c48c9fa44fc 311 }
CactusSemi 4:1c48c9fa44fc 312 //Printing Result table
CactusSemi 4:1c48c9fa44fc 313
CactusSemi 4:1c48c9fa44fc 314 pc.printf("\n\n\n\r\t\t\332");
CactusSemi 4:1c48c9fa44fc 315 for ( i = 0; i < 2; i++ ) {
CactusSemi 4:1c48c9fa44fc 316 for ( x = 0; x < 23; x++ ) pc.printf("\304");
CactusSemi 4:1c48c9fa44fc 317 pc.printf("\302");
CactusSemi 4:1c48c9fa44fc 318 }
CactusSemi 4:1c48c9fa44fc 319 pc.printf("\n\r\t\t\263\t\033[%dmOffset Trim\033[%dm\t\263\t\033[%dmadc_op8\033[%dm\t\t\263", 34, 32, 34, 32);
CactusSemi 4:1c48c9fa44fc 320 for ( temp = reg_val05_strt; temp <= reg_val05; temp = (temp + 1) ) {
CactusSemi 4:1c48c9fa44fc 321
CactusSemi 4:1c48c9fa44fc 322 pc.printf("\n\r\t\t\303");
CactusSemi 4:1c48c9fa44fc 323 for ( i = 0; i < 2; i++ ) {
CactusSemi 4:1c48c9fa44fc 324 for ( x = 0; x < 23; x++ ) pc.printf("\304");
CactusSemi 4:1c48c9fa44fc 325 if ( i < 1) pc.printf("\305");
CactusSemi 4:1c48c9fa44fc 326 else pc.printf("\264");
CactusSemi 4:1c48c9fa44fc 327 }
CactusSemi 4:1c48c9fa44fc 328 pc.printf("\n\r\t\t\263\t 0x%2.2X\t\t\263\t 0x%2.2X\t\t\263 ", temp, adc_op8_disp[temp]);
CactusSemi 4:1c48c9fa44fc 329 }
CactusSemi 4:1c48c9fa44fc 330
CactusSemi 4:1c48c9fa44fc 331 pc.printf("\n\r\t\t\300");
CactusSemi 4:1c48c9fa44fc 332 for ( i = 0; i < 2; i++ ) {
CactusSemi 4:1c48c9fa44fc 333 for ( x = 0; x < 23; x++ ) pc.printf("\304");
CactusSemi 4:1c48c9fa44fc 334 if ( i < 1) pc.printf("\301");
CactusSemi 4:1c48c9fa44fc 335 else pc.printf("\331");
CactusSemi 4:1c48c9fa44fc 336 }
CactusSemi 4:1c48c9fa44fc 337
CactusSemi 4:1c48c9fa44fc 338 if (adc_op8 > 0x08) d_adc_op = adc_op8 - 0x08;
CactusSemi 4:1c48c9fa44fc 339 else d_adc_op = 0x08 - adc_op8;
CactusSemi 4:1c48c9fa44fc 340
CactusSemi 4:1c48c9fa44fc 341 if (adc_op8_old > 0x08) d_adc_op_old = adc_op8_old - 0x08;
CactusSemi 4:1c48c9fa44fc 342 else d_adc_op_old = 0x08 - adc_op8_old;
CactusSemi 4:1c48c9fa44fc 343
CactusSemi 4:1c48c9fa44fc 344 if (d_adc_op > d_adc_op_old) {
CactusSemi 4:1c48c9fa44fc 345 reg_val05 = reg_val05 - 0x01;
CactusSemi 4:1c48c9fa44fc 346 i2c_write_fn(&i2c,0x05,reg_val05); //programming offset trim
CactusSemi 4:1c48c9fa44fc 347 }
CactusSemi 4:1c48c9fa44fc 348 pc.printf("\n\n\n\r\t\033[%dmFinal Offset trim = 0x%2.2X\033[%dm", 45, reg_val05, 40);//displaying in Magenta background
CactusSemi 4:1c48c9fa44fc 349
CactusSemi 4:1c48c9fa44fc 350 pc.printf("\n\n\n\r\t\033[%dmDo you want to continue with rest of the adc test. Press ",36);
CactusSemi 4:1c48c9fa44fc 351 pc.printf("\n\n\r\t 'c' - Continue ");
CactusSemi 4:1c48c9fa44fc 352 pc.printf("\n\n\r\t 'e' - Exit ");
CactusSemi 4:1c48c9fa44fc 353 pc.printf("\n\n\n\r\tYour Selection : \033[%dm",32);
CactusSemi 4:1c48c9fa44fc 354 temp = 0;
CactusSemi 4:1c48c9fa44fc 355 while ( temp!='c' && temp!='e') {
CactusSemi 4:1c48c9fa44fc 356 temp = pc.getc();
CactusSemi 4:1c48c9fa44fc 357 }
CactusSemi 4:1c48c9fa44fc 358 if (temp == 'e') return;
CactusSemi 4:1c48c9fa44fc 359 draw_sig_line();
CactusSemi 4:1c48c9fa44fc 360
CactusSemi 4:1c48c9fa44fc 361 //*****************************************************************
CactusSemi 4:1c48c9fa44fc 362 //****** measuring adc outputs different inputs
CactusSemi 4:1c48c9fa44fc 363 //*****************************************************************
CactusSemi 4:1c48c9fa44fc 364
CactusSemi 4:1c48c9fa44fc 365 pc.printf("\033[%dm ", 31);//change text color to red
CactusSemi 4:1c48c9fa44fc 366 pc.printf("\n\n\n\n\r\tMeasure ADC output for different inputs \n\r\t");
CactusSemi 4:1c48c9fa44fc 367 for ( i = 0; i<39; i++) pc.printf("\315");
CactusSemi 4:1c48c9fa44fc 368 pc.printf("\033[%dm ", 32);//change text color to green
CactusSemi 4:1c48c9fa44fc 369
CactusSemi 4:1c48c9fa44fc 370 adc_meas(&i2c,16,2); //adc measurement for 16 x 2mV
CactusSemi 4:1c48c9fa44fc 371 adc_meas(&i2c,24,2);
CactusSemi 4:1c48c9fa44fc 372 adc_meas(&i2c,32,2);
CactusSemi 4:1c48c9fa44fc 373 adc_meas(&i2c,64,2);
CactusSemi 4:1c48c9fa44fc 374 adc_meas(&i2c,97,2);
CactusSemi 4:1c48c9fa44fc 375 adc_meas(&i2c,128,2);
CactusSemi 4:1c48c9fa44fc 376 adc_meas(&i2c,196,2);
CactusSemi 4:1c48c9fa44fc 377 adc_meas(&i2c,250,2);
CactusSemi 4:1c48c9fa44fc 378
CactusSemi 4:1c48c9fa44fc 379 pc.printf("\n\n\n\r\t\033[%dmDo you want to continue with rest of the adc test. Press ",36);
CactusSemi 4:1c48c9fa44fc 380 pc.printf("\n\n\r\t 'c' - Continue ");
CactusSemi 4:1c48c9fa44fc 381 pc.printf("\n\n\r\t 'e' - Exit ");
CactusSemi 4:1c48c9fa44fc 382 pc.printf("\n\n\n\r\tYour Selection : \033[%dm",32);
CactusSemi 4:1c48c9fa44fc 383 temp = 0;
CactusSemi 4:1c48c9fa44fc 384 while ( temp!='c' && temp!='e') {
CactusSemi 4:1c48c9fa44fc 385 temp = pc.getc();
CactusSemi 4:1c48c9fa44fc 386 }
CactusSemi 4:1c48c9fa44fc 387 if (temp == 'e') return;
CactusSemi 4:1c48c9fa44fc 388 draw_sig_line();
CactusSemi 4:1c48c9fa44fc 389
CactusSemi 4:1c48c9fa44fc 390 //*****************************************************************
CactusSemi 4:1c48c9fa44fc 391 //****** measuring adc outputs different Range Settings
CactusSemi 4:1c48c9fa44fc 392 //*****************************************************************
CactusSemi 4:1c48c9fa44fc 393
CactusSemi 4:1c48c9fa44fc 394 pc.printf("\033[%dm ", 31);//change text color to red
CactusSemi 4:1c48c9fa44fc 395 pc.printf("\n\n\n\n\r\tMeasure ADC output for different range settings \n\r\t");
CactusSemi 4:1c48c9fa44fc 396 for ( i = 0; i<47; i++) pc.printf("\315");
CactusSemi 4:1c48c9fa44fc 397 pc.printf("\033[%dm ", 32);//change text color to green
CactusSemi 4:1c48c9fa44fc 398
CactusSemi 4:1c48c9fa44fc 399 reg_val04 = i2c_read_fn(&i2c,0x04); //Bits [3:2] of 0x04 contains range settings
CactusSemi 4:1c48c9fa44fc 400
CactusSemi 4:1c48c9fa44fc 401 i2c_write_fn(&i2c,0x04,(reg_val04 & 0xF3)); //Range = 00 => 1mV
CactusSemi 4:1c48c9fa44fc 402 adc_meas(&i2c,128,1); //adc measurement for 16 x 2mV
CactusSemi 4:1c48c9fa44fc 403
CactusSemi 4:1c48c9fa44fc 404 i2c_write_fn(&i2c,0x04,(reg_val04 | 0x0C)); //Range = 11 => 4mV
CactusSemi 4:1c48c9fa44fc 405 adc_meas(&i2c,32,4); //adc measurement for 32 x 4mV
CactusSemi 4:1c48c9fa44fc 406
CactusSemi 4:1c48c9fa44fc 407 i2c_write_fn(&i2c,0x04,reg_val04); //Setting back the original value
CactusSemi 4:1c48c9fa44fc 408
CactusSemi 4:1c48c9fa44fc 409 pc.printf("\n\n\n\r\t\033[%dmDo you want to continue with rest of the adc test. Press ",36);
CactusSemi 4:1c48c9fa44fc 410 pc.printf("\n\n\r\t 'c' - Continue ");
CactusSemi 4:1c48c9fa44fc 411 pc.printf("\n\n\r\t 'e' - Exit ");
CactusSemi 4:1c48c9fa44fc 412 pc.printf("\n\n\n\r\tYour Selection : \033[%dm",32);
CactusSemi 4:1c48c9fa44fc 413 temp = 0;
CactusSemi 4:1c48c9fa44fc 414 while ( temp!='c' && temp!='e') {
CactusSemi 4:1c48c9fa44fc 415 temp = pc.getc();
CactusSemi 4:1c48c9fa44fc 416 }
CactusSemi 4:1c48c9fa44fc 417 if (temp == 'e') return;
CactusSemi 4:1c48c9fa44fc 418 draw_sig_line();
CactusSemi 4:1c48c9fa44fc 419
CactusSemi 4:1c48c9fa44fc 420 //*****************************************************************
CactusSemi 4:1c48c9fa44fc 421 //****** measuring adc outputs for negative inputs
CactusSemi 4:1c48c9fa44fc 422 //*****************************************************************
CactusSemi 4:1c48c9fa44fc 423
CactusSemi 4:1c48c9fa44fc 424 pc.printf("\033[%dm ", 31);//change text color to red
CactusSemi 4:1c48c9fa44fc 425 pc.printf("\n\n\n\n\r\tMeasure ADC output for negative inputs \n\r\t");
CactusSemi 4:1c48c9fa44fc 426 for ( i = 0; i<39; i++) pc.printf("\315");
CactusSemi 4:1c48c9fa44fc 427 pc.printf("\033[%dm ", 32);//change text color to green
CactusSemi 4:1c48c9fa44fc 428
CactusSemi 4:1c48c9fa44fc 429 pc.printf("\033[%dm", 34);//change text color to blue
CactusSemi 4:1c48c9fa44fc 430 pc.printf("\n\n\n\r\tInstructions: \n\r\t");
CactusSemi 4:1c48c9fa44fc 431 for ( i = 0; i<13; i++) pc.printf("\304");
CactusSemi 4:1c48c9fa44fc 432 pc.printf("\n\n\r\t 1. Set Voc = 0. Wait for a second ");
CactusSemi 4:1c48c9fa44fc 433 pc.printf("\n\n\r\t 2. Change the input connnection such that the input is negative ");
CactusSemi 4:1c48c9fa44fc 434 pc.printf("\n\n\r\t 3. Increase Voc to 450mV");
CactusSemi 4:1c48c9fa44fc 435 pc.printf("\033[%dm ", 32);//change text color to green
CactusSemi 4:1c48c9fa44fc 436 temp = 0;
CactusSemi 4:1c48c9fa44fc 437 pc.printf("\n\n\n\r\t\033[%dmPress 'c' to continue: \033[%dm",36,32);
CactusSemi 4:1c48c9fa44fc 438 while ( temp!='c') {
CactusSemi 4:1c48c9fa44fc 439 temp = pc.getc();
CactusSemi 4:1c48c9fa44fc 440 }
CactusSemi 4:1c48c9fa44fc 441 //Making sure input polarity detector outputs are correct.
CactusSemi 4:1c48c9fa44fc 442 i2c_write_fn(&i2c,0x10,0x10); //tm_PolComp_en = 1
CactusSemi 4:1c48c9fa44fc 443 pc.printf("\n\n\n\r\tPolarity comparitor was enabled to have correct outputs (vinB_high = 1)");
CactusSemi 4:1c48c9fa44fc 444 wait_ms(1);
CactusSemi 4:1c48c9fa44fc 445 i2c_write_fn(&i2c,0x10,0x00); //tm_PolComp_en = 0
CactusSemi 4:1c48c9fa44fc 446 pc.printf("\n\n\r\tPolarity comparitor disabled");
CactusSemi 4:1c48c9fa44fc 447 adc_meas(&i2c,16,2); //adc measurement for 16 x 2mV
CactusSemi 4:1c48c9fa44fc 448 adc_meas(&i2c,128,2);
CactusSemi 4:1c48c9fa44fc 449 adc_meas(&i2c,250,2);
CactusSemi 4:1c48c9fa44fc 450
CactusSemi 4:1c48c9fa44fc 451 pc.printf("\n\n\n\r\t\033[%dmDo you want to continue to ADC ACP mode test. Press ",36);
CactusSemi 4:1c48c9fa44fc 452 pc.printf("\n\n\r\t 'c' - Continue ");
CactusSemi 4:1c48c9fa44fc 453 pc.printf("\n\n\r\t 'e' - Exit ");
CactusSemi 4:1c48c9fa44fc 454 pc.printf("\n\n\n\r\tYour Selection : \033[%dm",32);
CactusSemi 4:1c48c9fa44fc 455 temp = 0;
CactusSemi 4:1c48c9fa44fc 456 while ( temp!='c' && temp!='e') {
CactusSemi 4:1c48c9fa44fc 457 temp = pc.getc();
CactusSemi 4:1c48c9fa44fc 458 }
CactusSemi 4:1c48c9fa44fc 459 if (temp == 'e') return;
CactusSemi 4:1c48c9fa44fc 460 draw_sig_line();
CactusSemi 4:1c48c9fa44fc 461
CactusSemi 4:1c48c9fa44fc 462 //*****************************************************************
CactusSemi 4:1c48c9fa44fc 463 //****** Verify ADC operation for ACP mode
CactusSemi 4:1c48c9fa44fc 464 //*****************************************************************
CactusSemi 4:1c48c9fa44fc 465
CactusSemi 4:1c48c9fa44fc 466 pc.printf("\033[%dm ", 31);//change text color to red
CactusSemi 4:1c48c9fa44fc 467 pc.printf("\n\n\n\n\r\tVerify ADC operation in ACP mode \n\r\t");
CactusSemi 4:1c48c9fa44fc 468 for ( i = 0; i<32; i++) pc.printf("\315");
CactusSemi 4:1c48c9fa44fc 469 pc.printf("\033[%dm ", 32);//change text color to green
CactusSemi 4:1c48c9fa44fc 470 reg_val07 = i2c_read_fn(&i2c,0x07); //reading the initial pmos off setting
CactusSemi 4:1c48c9fa44fc 471 i2c_write_fn(&i2c,0x07,(reg_val07 | 0x0F)); //PMOS_off = 4’hF → ACP mode. In this mode ADC operates as a comparator checking input against 250*lsb
CactusSemi 4:1c48c9fa44fc 472 pc.printf("\n\n\r\tCSI066a switched to ACP mode by setting PMOS_off = 4'hF");
CactusSemi 4:1c48c9fa44fc 473
CactusSemi 4:1c48c9fa44fc 474 pc.printf("\033[%dm", 34);//change text color to blue
CactusSemi 4:1c48c9fa44fc 475 pc.printf("\n\n\n\r\tInstructions: \n\r\t");
CactusSemi 4:1c48c9fa44fc 476 for ( i = 0; i<13; i++) pc.printf("\304");
CactusSemi 4:1c48c9fa44fc 477 pc.printf("\n\n\r\t 1. Set Voc to 480mV (240 x 2mV)");
CactusSemi 4:1c48c9fa44fc 478 pc.printf("\033[%dm ", 32);//change text color to green
CactusSemi 4:1c48c9fa44fc 479 temp = 0;
CactusSemi 4:1c48c9fa44fc 480 pc.printf("\n\n\n\r\t\033[%dmPress 'c' to continue: \033[%dm",36,32);
CactusSemi 4:1c48c9fa44fc 481 while ( temp!='c') {
CactusSemi 4:1c48c9fa44fc 482 temp = pc.getc();
CactusSemi 4:1c48c9fa44fc 483 }
CactusSemi 4:1c48c9fa44fc 484 pc.printf("\n\n\n\r\tPerforming hot-read on adc_comp_out (0x13[3])");
CactusSemi 4:1c48c9fa44fc 485 pc.printf("\033[%dm", 34);//change text color to blue
CactusSemi 4:1c48c9fa44fc 486 pc.printf("\n\n\n\r\tInstructions: \n\r\t");
CactusSemi 4:1c48c9fa44fc 487 for ( i = 0; i<13; i++) pc.printf("\304");
CactusSemi 4:1c48c9fa44fc 488 pc.printf("\n\n\r\t 1. Monitor DATA1_clk on oscilloscope. DATA1_clk should be low in the beginning ");
CactusSemi 4:1c48c9fa44fc 489 pc.printf("\n\n\r\t 2. Ramp Voc from 480mV --> 520mV (240lsb --> 260lsb). Stop when DATA1_CLK transitions from 0 --> 1 ");
CactusSemi 4:1c48c9fa44fc 490 pc.printf("\n\n\r\t 3. Record Voc / 2mV. Record it as\033[%dm ACP_neg_fb_dis \033[%dm", 47, 40); //background white
CactusSemi 4:1c48c9fa44fc 491 pc.printf("\033[%dm ", 32);//change text color to green
CactusSemi 4:1c48c9fa44fc 492
CactusSemi 4:1c48c9fa44fc 493 i2c_hotread_fn(&i2c,0x13,3); //Performing hot-read on [3] of 0x13
CactusSemi 4:1c48c9fa44fc 494
CactusSemi 4:1c48c9fa44fc 495 pc.printf("\033[%dm", 34);//change text color to blue
CactusSemi 4:1c48c9fa44fc 496 pc.printf("\n\n\n\r\tInstructions: \n\r\t");
CactusSemi 4:1c48c9fa44fc 497 for ( i = 0; i<13; i++) pc.printf("\304");
CactusSemi 4:1c48c9fa44fc 498 pc.printf("\n\n\r\t 1. Reduce Voc to 0V. ");
CactusSemi 4:1c48c9fa44fc 499 pc.printf("\n\n\r\t 2. Switch input connections such that input is positive");
CactusSemi 4:1c48c9fa44fc 500 pc.printf("\n\n\r\t 3. Set Voc to 480mV (240 x 2mV)");
CactusSemi 4:1c48c9fa44fc 501 pc.printf("\033[%dm ", 32);//change text color to green
CactusSemi 4:1c48c9fa44fc 502 temp = 0;
CactusSemi 4:1c48c9fa44fc 503 pc.printf("\n\n\n\r\t\033[%dmPress 'c' to continue: \033[%dm",36,32);
CactusSemi 4:1c48c9fa44fc 504 while ( temp!='c') {
CactusSemi 4:1c48c9fa44fc 505 temp = pc.getc();
CactusSemi 4:1c48c9fa44fc 506 }
CactusSemi 4:1c48c9fa44fc 507 i2c.~I2C();
CactusSemi 4:1c48c9fa44fc 508 I2C i2c2(p9,p10); //Creating new object after hot-read
CactusSemi 4:1c48c9fa44fc 509 i2c2.frequency((frequ/2)*1000);
CactusSemi 4:1c48c9fa44fc 510 LPC_PINCON->PINMODE_OD0 = (LPC_PINCON->PINMODE_OD0 | 0x0003); // To make p9 & P10 open_drain
CactusSemi 4:1c48c9fa44fc 511 i2c2.stop(); //add a stop after hot-read
CactusSemi 4:1c48c9fa44fc 512 //Making sure input polarity detector outputs are correct.
CactusSemi 4:1c48c9fa44fc 513 i2c_write_fn(&i2c2,0x10,0x10); //tm_PolComp_en = 1
CactusSemi 4:1c48c9fa44fc 514 pc.printf("\n\n\n\r\tPolarity comparitor was enabled to have correct outputs (vinB_high = 1)");
CactusSemi 4:1c48c9fa44fc 515 wait_ms(1);
CactusSemi 4:1c48c9fa44fc 516 i2c_write_fn(&i2c2,0x10,0x00); //tm_PolComp_en = 0
CactusSemi 4:1c48c9fa44fc 517 pc.printf("\n\n\r\tPolarity comparitor disabled");
CactusSemi 4:1c48c9fa44fc 518
CactusSemi 4:1c48c9fa44fc 519 pc.printf("\n\n\n\r\tPerforming hot-read on adc_comp_out (0x13[3])");
CactusSemi 4:1c48c9fa44fc 520
CactusSemi 4:1c48c9fa44fc 521 pc.printf("\033[%dm", 34);//change text color to blue
CactusSemi 4:1c48c9fa44fc 522 pc.printf("\n\n\n\r\tInstructions: \n\r\t");
CactusSemi 4:1c48c9fa44fc 523 for ( i = 0; i<13; i++) pc.printf("\304");
CactusSemi 4:1c48c9fa44fc 524 pc.printf("\n\n\r\t 1. Monitor DATA1_CLk on the oscillscope ");
CactusSemi 4:1c48c9fa44fc 525 pc.printf("\n\n\r\t 2. DATA1_CLk should be low initially");
CactusSemi 4:1c48c9fa44fc 526 pc.printf("\n\n\r\t 3. Ramp Voc from 480mV --> 520mV (240lsb --> 260lsb). Stop when DATA1_CLK transitions from 0 --> 1 ");
CactusSemi 4:1c48c9fa44fc 527 pc.printf("\n\n\r\t 4. Record Voc / 2mV. Record it as\033[%dm ACP_pos_fb_dis \033[%dm", 47, 40); //yellow background
CactusSemi 4:1c48c9fa44fc 528 pc.printf("\033[%dm ", 32);//change text color to green
CactusSemi 4:1c48c9fa44fc 529
CactusSemi 4:1c48c9fa44fc 530 i2c_hotread_fn(&i2c2,0x13,3); //Performing hot-read on [3] of 0x13
CactusSemi 4:1c48c9fa44fc 531
CactusSemi 4:1c48c9fa44fc 532 i2c2.~I2C();
CactusSemi 4:1c48c9fa44fc 533 I2C i2c3(p9,p10); //Creating new object after hot-read
CactusSemi 4:1c48c9fa44fc 534 i2c3.frequency((frequ/2)*1000);
CactusSemi 4:1c48c9fa44fc 535 LPC_PINCON->PINMODE_OD0 = (LPC_PINCON->PINMODE_OD0 | 0x0003); // To make p9 & P10 open_drain
CactusSemi 4:1c48c9fa44fc 536 i2c3.stop(); //add a stop after hot-read
CactusSemi 4:1c48c9fa44fc 537 i2c_write_fn(&i2c3,0x07,reg_val07); //Restoring Reg 0x07 value
CactusSemi 4:1c48c9fa44fc 538 pc.printf("\n\n\n\r\t\033[%dmADC Test finally done!.. Phew\033[%dm", 45, 40);//displaying in Magenta background
CactusSemi 4:1c48c9fa44fc 539
CactusSemi 4:1c48c9fa44fc 540 }
CactusSemi 4:1c48c9fa44fc 541