Team Walter / Mbed OS PICO_I2C_FW

PICO I2C FW

Dependencies:   USBDevice

main.cpp@12:aa9fff0aec91, 2018-07-03 (annotated)

Committer:
cyberjoey
Date:
Tue Jul 03 16:41:47 2018 +0000
Revision:
12:aa9fff0aec91
Parent:
11:94a7379c0db8
Child:
13:674c647d12dd
removed echo when serial client send commands so client does not have to read dummy line

Who changed what in which revision?

UserRevisionLine numberNew contents of line
switches 0:60a522ae2e35 1 #include "mbed.h"
switches 1:90313362ec11 2 #include "SDFileSystem.h"
cyberjoey 9:36ba3626aab7 3 #include "max32630fthr.h"
cyberjoey 9:36ba3626aab7 4 #include "USBSerial.h"
cyberjoey 11:94a7379c0db8 5 #include <ctype.h>
switches 0:60a522ae2e35 6
cyberjoey 9:36ba3626aab7 7
cyberjoey 9:36ba3626aab7 8 #define I2C_ADDRESS 0x30 // DS2484 I2C address
cyberjoey 9:36ba3626aab7 9 #define DS2484_ADD 0x30 // DS2484 I2C write address
cyberjoey 9:36ba3626aab7 10
cyberjoey 9:36ba3626aab7 11
cyberjoey 9:36ba3626aab7 12 #define PERIOD 10 // Logging period in seconds
cyberjoey 9:36ba3626aab7 13
cyberjoey 9:36ba3626aab7 14 //DS2484 Status register bits
cyberjoey 9:36ba3626aab7 15 #define OWB 0x01 // status reg, One Wire Busy
cyberjoey 9:36ba3626aab7 16 #define PPD 0x02 // status reg, Presence Pulse Detected
cyberjoey 9:36ba3626aab7 17 #define SD 0x04 // status reg, Short Detected
cyberjoey 9:36ba3626aab7 18 #define LL 0x08 // status reg, Logic Level
cyberjoey 9:36ba3626aab7 19 #define RST 0x10 // status reg, Device Reset (DS2484 Reset)
cyberjoey 9:36ba3626aab7 20 #define SBR 0x20 // status reg, Single Bit Result
cyberjoey 9:36ba3626aab7 21 #define TSB 0x40 // status reg, Triplet Second Bit
cyberjoey 9:36ba3626aab7 22 #define DIR 0x80 // status reg, Branch Direction Taken
cyberjoey 9:36ba3626aab7 23 //DS2484 Command bytes
cyberjoey 9:36ba3626aab7 24 #define RESET 0xF0 // DS2484 Reset
cyberjoey 9:36ba3626aab7 25 #define SRP 0xE1 // DS2484 Set Read Pointer
cyberjoey 9:36ba3626aab7 26 #define WDC 0xD2 // DS2484 Write Device Configuration
cyberjoey 9:36ba3626aab7 27 #define ACP 0xC3 // DS2484 Adjust one wire Control Port
cyberjoey 9:36ba3626aab7 28 #define OW_RESET 0xB4 // DS2484 One Wire Reset
cyberjoey 9:36ba3626aab7 29 #define OW_SB 0x87 // One Wire Single Bit (write or read)
cyberjoey 9:36ba3626aab7 30 #define OWWB 0xA5 // One Wire Write Byte
cyberjoey 9:36ba3626aab7 31 #define OWRB 0x96 // One Wire Read Byte
cyberjoey 9:36ba3626aab7 32 #define OWT 0x78 // One Wire Triplet (read 2 bits, write 1 bit)
cyberjoey 9:36ba3626aab7 33 //One Wire Commands
cyberjoey 9:36ba3626aab7 34 #define OW_SEARCH 0xF0 // Search Rom
cyberjoey 9:36ba3626aab7 35 #define OW_READ 0x33 // Read Rom
cyberjoey 9:36ba3626aab7 36 #define OW_MATCH 0x55 // Match Rom
cyberjoey 9:36ba3626aab7 37 #define OW_SKIP 0xCC // Skip Rom
cyberjoey 9:36ba3626aab7 38 #define OW_OD_MATCH 0x69 // Match Rom
cyberjoey 9:36ba3626aab7 39 #define OW_OD_SKIP 0x3C // Skip Rom
cyberjoey 9:36ba3626aab7 40 #define OW_ALARM 0xEC // Alarm Search
cyberjoey 9:36ba3626aab7 41 // OT07 OW commands
cyberjoey 9:36ba3626aab7 42 #define OT07_OW_CONVERT 0x44 //OT07 OW convert temperature command
cyberjoey 9:36ba3626aab7 43 #define OT07_OW_WRITE 0xCC // OT07 OW Write Register command
cyberjoey 9:36ba3626aab7 44 #define OT07_OW_READ 0x33 // OT07 OW Read Register command
cyberjoey 9:36ba3626aab7 45 #define OT07_OW_RESET 0x82 // OT07 OW Soft Reset command
switches 3:247c750f9f3d 46
cyberjoey 9:36ba3626aab7 47 //OT07 Registers
cyberjoey 9:36ba3626aab7 48 #define OT07_STATUS 0x00 // OT07 status regiter
cyberjoey 9:36ba3626aab7 49 #define OT07_INT_EN 0x01 // OT07 Interrupt Enable
cyberjoey 9:36ba3626aab7 50 #define OT07_FIFO_W 0x04 // OT07 FIFO Write Pointer
cyberjoey 9:36ba3626aab7 51 #define OT07_FIFO_R 0x05 // OT07 FIFO Read Pointer
cyberjoey 9:36ba3626aab7 52 #define OT07_FIFO_OF 0x06 // OT07 FIFO Overflow Counter
cyberjoey 9:36ba3626aab7 53 #define OT07_FIFO_COUNT 0x07 // OT07 FIFO Data Count
cyberjoey 9:36ba3626aab7 54 #define OT07_FIFO_DATA 0x08 // OT07 FIFO Data
cyberjoey 9:36ba3626aab7 55 #define OT07_FIFO_CNFG1 0x09 // OT07 FIFO Configuration 1 (FIFO_A_FULL)
cyberjoey 9:36ba3626aab7 56 #define OT07_FIFO_CNFG2 0x0A // OT07 FIFO Configuration 2
cyberjoey 9:36ba3626aab7 57 #define OT07_SYS 0x0C // OT07 System Configuration
cyberjoey 9:36ba3626aab7 58 #define OT07_ALARM_HIGH_MSB 0x10 // OT07 Alarm High MSB
cyberjoey 9:36ba3626aab7 59 #define OT07_ALARM_HIGH_LSB 0x11 // OT07 Alarm High LSB
cyberjoey 9:36ba3626aab7 60 #define OT07_ALARM_LOW_MSB 0x12 // OT07 Alarm Low MSB
cyberjoey 9:36ba3626aab7 61 #define OT07_ALARM_LOW_LSB 0x13 // OT07 Alarm LOW LSB
cyberjoey 9:36ba3626aab7 62 #define OT07_ADC_BITS 0x14 // OT07 Temp Seneor Setup (ADC_RES[7:6])
cyberjoey 9:36ba3626aab7 63 #define OT07_GPIO_SETUP 0x20 // OT07 GPIO Setup, sets GPIO modes
cyberjoey 9:36ba3626aab7 64 #define Ot07_GPIO_CTRL 0x21 // OT07 GPIO control
cyberjoey 9:36ba3626aab7 65 #define OT07_ROM_ID 0x30 // OT07 ROM_ID address of LSB?
cyberjoey 9:36ba3626aab7 66
cyberjoey 9:36ba3626aab7 67
cyberjoey 9:36ba3626aab7 68 #define MAX_DEVICES 64 // Maximum number of rom devices allowed
cyberjoey 9:36ba3626aab7 69 #define ID_LENGTH 8 // Rom ID length in bytes
cyberjoey 9:36ba3626aab7 70
cyberjoey 9:36ba3626aab7 71
cyberjoey 9:36ba3626aab7 72 #define BS 8 // ASCII Back Space
cyberjoey 9:36ba3626aab7 73 #define CR 13 // ASCII Carriage Return
cyberjoey 9:36ba3626aab7 74
cyberjoey 10:148da21c297e 75 const char* settings_file = "/sd/settings.txt";
cyberjoey 10:148da21c297e 76 const char* log_file = "/sd/MAX30207Log.csv";
cyberjoey 10:148da21c297e 77
cyberjoey 9:36ba3626aab7 78 //global variable
cyberjoey 9:36ba3626aab7 79
cyberjoey 9:36ba3626aab7 80 //******************** init Feather Boared Hardware ***********************
cyberjoey 9:36ba3626aab7 81
cyberjoey 9:36ba3626aab7 82 MAX32630FTHR pegasus(MAX32630FTHR::VIO_3V3);
cyberjoey 9:36ba3626aab7 83
cyberjoey 9:36ba3626aab7 84 //microSD logging file system setup
cyberjoey 9:36ba3626aab7 85 SDFileSystem sd(P0_5, P0_6, P0_4, P0_7, "sd"); // mosi, miso, sclk, cs
cyberjoey 9:36ba3626aab7 86
cyberjoey 9:36ba3626aab7 87 //SD card insertion detection pin
cyberjoey 9:36ba3626aab7 88 DigitalIn SDDetect(P2_2, PullUp);
cyberjoey 11:94a7379c0db8 89 InterruptIn SDInsert(P2_2);
cyberjoey 9:36ba3626aab7 90
cyberjoey 9:36ba3626aab7 91
cyberjoey 9:36ba3626aab7 92 // Virtual serial port over USB
cyberjoey 9:36ba3626aab7 93 //USBSerial pc;
cyberjoey 9:36ba3626aab7 94 USBSerial pc(0x0B6A, 0x0042, 0x0001, true);
cyberjoey 9:36ba3626aab7 95
cyberjoey 9:36ba3626aab7 96 // I2C setup
cyberjoey 9:36ba3626aab7 97 I2C i2c(P3_4,P3_5); // P3_4 -> I2C1_SDA, P3_5-> I2C1_SCL
cyberjoey 9:36ba3626aab7 98
cyberjoey 9:36ba3626aab7 99 //Timer setup
cyberjoey 9:36ba3626aab7 100 Ticker timer_1; // timer for blinking led heartbeat
cyberjoey 9:36ba3626aab7 101
cyberjoey 9:36ba3626aab7 102 bool tick_flag; // used for counting seconds
cyberjoey 9:36ba3626aab7 103 bool log_flag = false;
cyberjoey 9:36ba3626aab7 104 bool led_toggle_flag = false;
cyberjoey 9:36ba3626aab7 105 bool button_flag = false;
cyberjoey 11:94a7379c0db8 106 bool sd_insert_flag = false;
cyberjoey 9:36ba3626aab7 107 bool error_flag;
cyberjoey 9:36ba3626aab7 108 int error_ticks;
cyberjoey 9:36ba3626aab7 109
cyberjoey 9:36ba3626aab7 110 //LED blink setup
switches 1:90313362ec11 111 DigitalOut rLED(LED1);
switches 1:90313362ec11 112 DigitalOut gLED(LED2);
cyberjoey 9:36ba3626aab7 113 DigitalOut bLED(LED3);
switches 0:60a522ae2e35 114
cyberjoey 9:36ba3626aab7 115 InterruptIn button(SW1);
cyberjoey 9:36ba3626aab7 116
cyberjoey 9:36ba3626aab7 117
cyberjoey 9:36ba3626aab7 118 void LED_blink_callback(){ // LED Heart beat
cyberjoey 9:36ba3626aab7 119
cyberjoey 9:36ba3626aab7 120 led_toggle_flag = !led_toggle_flag;
cyberjoey 9:36ba3626aab7 121
cyberjoey 9:36ba3626aab7 122 if(log_flag) //if logging
cyberjoey 9:36ba3626aab7 123 {
cyberjoey 9:36ba3626aab7 124
cyberjoey 9:36ba3626aab7 125 if(led_toggle_flag)
cyberjoey 9:36ba3626aab7 126 {
cyberjoey 9:36ba3626aab7 127 //toggle red led
cyberjoey 9:36ba3626aab7 128 rLED = LED_ON;
cyberjoey 9:36ba3626aab7 129 }
cyberjoey 9:36ba3626aab7 130 else
cyberjoey 9:36ba3626aab7 131 {
cyberjoey 9:36ba3626aab7 132 rLED = LED_OFF;
cyberjoey 9:36ba3626aab7 133 gLED = LED_OFF;
cyberjoey 9:36ba3626aab7 134 bLED = LED_OFF;
cyberjoey 9:36ba3626aab7 135 }
cyberjoey 9:36ba3626aab7 136 }
cyberjoey 9:36ba3626aab7 137 else if(error_flag) //if error (no sd card)
cyberjoey 9:36ba3626aab7 138 {
cyberjoey 9:36ba3626aab7 139 if(led_toggle_flag)
cyberjoey 9:36ba3626aab7 140 {
cyberjoey 9:36ba3626aab7 141 //toggle red led
cyberjoey 9:36ba3626aab7 142 rLED = LED_ON;
cyberjoey 9:36ba3626aab7 143 gLED = LED_ON;
cyberjoey 9:36ba3626aab7 144 }
cyberjoey 9:36ba3626aab7 145 else
cyberjoey 9:36ba3626aab7 146 {
cyberjoey 9:36ba3626aab7 147 rLED = LED_OFF;
cyberjoey 9:36ba3626aab7 148 gLED = LED_OFF;
cyberjoey 9:36ba3626aab7 149 bLED = LED_OFF;
cyberjoey 9:36ba3626aab7 150 }
cyberjoey 9:36ba3626aab7 151 error_ticks--;
cyberjoey 9:36ba3626aab7 152 if(error_ticks <= 0)
cyberjoey 9:36ba3626aab7 153 error_flag = false;
cyberjoey 9:36ba3626aab7 154 }
cyberjoey 9:36ba3626aab7 155 else
cyberjoey 9:36ba3626aab7 156 {
cyberjoey 9:36ba3626aab7 157 if(led_toggle_flag)
cyberjoey 9:36ba3626aab7 158 {
cyberjoey 9:36ba3626aab7 159 //toggle teal leds
cyberjoey 9:36ba3626aab7 160 gLED = LED_ON;
cyberjoey 9:36ba3626aab7 161 bLED = LED_ON;
cyberjoey 9:36ba3626aab7 162 }
cyberjoey 9:36ba3626aab7 163 else
cyberjoey 9:36ba3626aab7 164 {
cyberjoey 9:36ba3626aab7 165 rLED = LED_OFF;
cyberjoey 9:36ba3626aab7 166 gLED = LED_OFF;
cyberjoey 9:36ba3626aab7 167 bLED = LED_OFF;
cyberjoey 9:36ba3626aab7 168 }
cyberjoey 9:36ba3626aab7 169 }
cyberjoey 9:36ba3626aab7 170
cyberjoey 9:36ba3626aab7 171 tick_flag = true;
cyberjoey 9:36ba3626aab7 172 }
cyberjoey 9:36ba3626aab7 173
cyberjoey 9:36ba3626aab7 174 void btn_pressed() //button pressed isr
cyberjoey 9:36ba3626aab7 175 {
cyberjoey 9:36ba3626aab7 176 button_flag = true;
cyberjoey 9:36ba3626aab7 177 }
cyberjoey 9:36ba3626aab7 178
cyberjoey 11:94a7379c0db8 179 void sd_insert() //sd_insert pressed isr
cyberjoey 11:94a7379c0db8 180 {
cyberjoey 11:94a7379c0db8 181 sd_insert_flag = true;
cyberjoey 11:94a7379c0db8 182 }
cyberjoey 11:94a7379c0db8 183
cyberjoey 9:36ba3626aab7 184 /*
cyberjoey 9:36ba3626aab7 185 void take_data_flag_callback(){ // set data sample time flag
cyberjoey 9:36ba3626aab7 186
cyberjoey 9:36ba3626aab7 187 take_data_flag = true;
cyberjoey 9:36ba3626aab7 188 }
cyberjoey 9:36ba3626aab7 189 */
cyberjoey 9:36ba3626aab7 190
cyberjoey 9:36ba3626aab7 191 // *****************************************************************************
cyberjoey 9:36ba3626aab7 192 // Define CRC-8 Table
cyberjoey 9:36ba3626aab7 193 // *****************************************************************************
cyberjoey 9:36ba3626aab7 194
cyberjoey 9:36ba3626aab7 195 static unsigned char crc_table[] = {
cyberjoey 9:36ba3626aab7 196 0, 94,188,226, 97, 63,221,131,194,156,126, 32,163,253, 31, 65,
cyberjoey 9:36ba3626aab7 197 157,195, 33,127,252,162, 64, 30, 95, 1,227,189, 62, 96,130,220,
cyberjoey 9:36ba3626aab7 198 35,125,159,193, 66, 28,254,160,225,191, 93, 3,128,222, 60, 98,
cyberjoey 9:36ba3626aab7 199 190,224, 2, 92,223,129, 99, 61,124, 34,192,158, 29, 67,161,255,
cyberjoey 9:36ba3626aab7 200 70, 24,250,164, 39,121,155,197,132,218, 56,102,229,187, 89, 7,
cyberjoey 9:36ba3626aab7 201 219,133,103, 57,186,228, 6, 88, 25, 71,165,251,120, 38,196,154,
cyberjoey 9:36ba3626aab7 202 101, 59,217,135, 4, 90,184,230,167,249, 27, 69,198,152,122, 36,
cyberjoey 9:36ba3626aab7 203 248,166, 68, 26,153,199, 37,123, 58,100,134,216, 91, 5,231,185,
cyberjoey 9:36ba3626aab7 204 140,210, 48,110,237,179, 81, 15, 78, 16,242,172, 47,113,147,205,
cyberjoey 9:36ba3626aab7 205 17, 79,173,243,112, 46,204,146,211,141,111, 49,178,236, 14, 80,
cyberjoey 9:36ba3626aab7 206 175,241, 19, 77,206,144,114, 44,109, 51,209,143, 12, 82,176,238,
cyberjoey 9:36ba3626aab7 207 50,108,142,208, 83, 13,239,177,240,174, 76, 18,145,207, 45,115,
cyberjoey 9:36ba3626aab7 208 202,148,118, 40,171,245, 23, 73, 8, 86,180,234,105, 55,213,139,
cyberjoey 9:36ba3626aab7 209 87, 9,235,181, 54,104,138,212,149,203, 41,119,244,170, 72, 22,
cyberjoey 9:36ba3626aab7 210 233,183, 85, 11,136,214, 52,106, 43,117,151,201, 74, 20,246,168,
cyberjoey 9:36ba3626aab7 211 116, 42,200,150, 21, 75,169,247,182,232, 10, 84,215,137,107, 53};
cyberjoey 9:36ba3626aab7 212
cyberjoey 9:36ba3626aab7 213
cyberjoey 9:36ba3626aab7 214
cyberjoey 9:36ba3626aab7 215 // -----------------------------------------------------------------------------
cyberjoey 9:36ba3626aab7 216 // Calculate the CRC8 of the byte value provided with the current total
cyberjoey 9:36ba3626aab7 217 // calc_crc8(unsigned char, unsigned char) crc8 total, byte to add
cyberjoey 9:36ba3626aab7 218 // pass crc8 total = 0 to start new crc sum.
cyberjoey 9:36ba3626aab7 219
cyberjoey 9:36ba3626aab7 220 // Returns new crc8 total
cyberjoey 9:36ba3626aab7 221 // -----------------------------------------------------------------------------
cyberjoey 9:36ba3626aab7 222
cyberjoey 9:36ba3626aab7 223 unsigned char calc_crc8(unsigned char crc8, unsigned char value){
cyberjoey 9:36ba3626aab7 224
cyberjoey 9:36ba3626aab7 225 return crc_table[crc8 ^ value];
cyberjoey 9:36ba3626aab7 226 }
cyberjoey 9:36ba3626aab7 227
cyberjoey 9:36ba3626aab7 228 // *****************************************************************************
cyberjoey 9:36ba3626aab7 229 // OW_reset()
cyberjoey 9:36ba3626aab7 230 // returns 0 no device present, 1 device present
cyberjoey 9:36ba3626aab7 231 // *****************************************************************************
cyberjoey 9:36ba3626aab7 232
cyberjoey 9:36ba3626aab7 233 int OW_reset(){
cyberjoey 9:36ba3626aab7 234 char data[2]; // define as minimun array size so 'data' is a pointer
cyberjoey 9:36ba3626aab7 235 data[0] = OW_RESET; // One Wire Reset 0xB4
cyberjoey 9:36ba3626aab7 236 i2c.write(DS2484_ADD,data,1,0); // write reset command to DS2484
cyberjoey 9:36ba3626aab7 237 wait_ms(1);
cyberjoey 9:36ba3626aab7 238 do{ // poll OW-busy
cyberjoey 9:36ba3626aab7 239 i2c.read(DS2484_ADD,data,1); // read back status byte from DS2484
cyberjoey 9:36ba3626aab7 240 }while(OWB & data[0]);
cyberjoey 9:36ba3626aab7 241 if(PPD & data[0])return 1; // Presence Pulse Detected bit true?
cyberjoey 9:36ba3626aab7 242 return 0; // else
cyberjoey 9:36ba3626aab7 243 } // end OW_reset()
cyberjoey 9:36ba3626aab7 244
cyberjoey 9:36ba3626aab7 245 // *****************************************************************************
cyberjoey 9:36ba3626aab7 246 // OW_write_byte(char) takes char to send over one wire
cyberjoey 9:36ba3626aab7 247 // returns DS2484 status byte
cyberjoey 9:36ba3626aab7 248 // *****************************************************************************
cyberjoey 9:36ba3626aab7 249
cyberjoey 9:36ba3626aab7 250 char OW_write_byte(char byte){
cyberjoey 9:36ba3626aab7 251
cyberjoey 9:36ba3626aab7 252 char data[2];
cyberjoey 9:36ba3626aab7 253 data[0] = 0xA5;
cyberjoey 9:36ba3626aab7 254 data[1] = byte;
cyberjoey 9:36ba3626aab7 255 i2c.write(DS2484_ADD,data,2,1);
cyberjoey 9:36ba3626aab7 256 i2c.read(DS2484_ADD,data,1); // read status byte
cyberjoey 9:36ba3626aab7 257
cyberjoey 9:36ba3626aab7 258 // db.printf("[%02X]",byte);
cyberjoey 9:36ba3626aab7 259 wait_us(700); // assumes normal speed OW write
cyberjoey 9:36ba3626aab7 260 return data[0]; // return DS2484 Status byte
cyberjoey 9:36ba3626aab7 261
cyberjoey 9:36ba3626aab7 262 }// end OW_write_byte()
cyberjoey 9:36ba3626aab7 263
cyberjoey 9:36ba3626aab7 264
cyberjoey 9:36ba3626aab7 265 // *****************************************************************************
cyberjoey 9:36ba3626aab7 266 // OW_read_byte(char *, int) char* (save data pointer)
cyberjoey 9:36ba3626aab7 267 // int (number of bytes to read)
cyberjoey 9:36ba3626aab7 268 // returns 0x00
cyberjoey 9:36ba3626aab7 269 //
cyberjoey 9:36ba3626aab7 270 // assumes OW_reset, OW_match rom, and OW device register read address already sent.
cyberjoey 9:36ba3626aab7 271 //
cyberjoey 9:36ba3626aab7 272 // *****************************************************************************
cyberjoey 9:36ba3626aab7 273
cyberjoey 9:36ba3626aab7 274 char OW_read_byte(char* a, int n){
cyberjoey 9:36ba3626aab7 275
cyberjoey 9:36ba3626aab7 276 char data[2];
cyberjoey 9:36ba3626aab7 277 int i;
cyberjoey 9:36ba3626aab7 278
cyberjoey 9:36ba3626aab7 279 //read n bytes of data
cyberjoey 9:36ba3626aab7 280 i=0;
cyberjoey 9:36ba3626aab7 281 do{
cyberjoey 9:36ba3626aab7 282 data[0] = OWRB; // send 0x96; DS2484 command, OW read byte
cyberjoey 9:36ba3626aab7 283 i2c.write(DS2484_ADD,data,1,0);
cyberjoey 9:36ba3626aab7 284 wait_us(600);
cyberjoey 9:36ba3626aab7 285 do{
cyberjoey 9:36ba3626aab7 286 i2c.read(DS2484_ADD,data,1); // read status byte and test OW-busy?
cyberjoey 9:36ba3626aab7 287 }while(data[0]&0x01 == 1); // status bit[0] set --> OW busy
cyberjoey 9:36ba3626aab7 288
cyberjoey 9:36ba3626aab7 289 //get byte from DS2484
cyberjoey 9:36ba3626aab7 290 data[0] = SRP; // send 0xE1, set read pointer
cyberjoey 9:36ba3626aab7 291 data[1] = 0xE1; // set read pointer address 0xE1 read OW data
cyberjoey 9:36ba3626aab7 292 i2c.write(DS2484_ADD,data,2,1);
cyberjoey 9:36ba3626aab7 293 i2c.read(DS2484_ADD,data,1); // read bytes from OW register
cyberjoey 9:36ba3626aab7 294
cyberjoey 9:36ba3626aab7 295 a[i] = data[0];
cyberjoey 9:36ba3626aab7 296
cyberjoey 9:36ba3626aab7 297 i++;
cyberjoey 9:36ba3626aab7 298 //pc.printf("[%02X] ",data[0]);
cyberjoey 9:36ba3626aab7 299 }while(i<n);
cyberjoey 9:36ba3626aab7 300 //for(i=0;i<n;i++) db.printf("OW_read_byte - [%2d][%02X]\r\n",i,a[i]);
cyberjoey 9:36ba3626aab7 301 return 0x00;
cyberjoey 9:36ba3626aab7 302 }// end OW_read_byte()
cyberjoey 9:36ba3626aab7 303
cyberjoey 9:36ba3626aab7 304
cyberjoey 9:36ba3626aab7 305
cyberjoey 9:36ba3626aab7 306 // *****************************************************************************
cyberjoey 9:36ba3626aab7 307 // OW_match_rom(char *) pointer to device_id byte array
cyberjoey 9:36ba3626aab7 308 // returns 0x00
cyberjoey 9:36ba3626aab7 309 // assumes OW_reset alread sent
cyberjoey 9:36ba3626aab7 310 // *****************************************************************************
cyberjoey 9:36ba3626aab7 311
cyberjoey 9:36ba3626aab7 312 char OW_match_rom(char *device_id){
cyberjoey 9:36ba3626aab7 313
cyberjoey 9:36ba3626aab7 314 int i;
cyberjoey 9:36ba3626aab7 315 //Match rom
cyberjoey 9:36ba3626aab7 316 OW_write_byte(OW_MATCH); // send 0x55, match rom command
cyberjoey 9:36ba3626aab7 317 //send rom code for device
cyberjoey 9:36ba3626aab7 318 for(i=0;i<8;i++){
cyberjoey 9:36ba3626aab7 319 OW_write_byte(device_id[i]); //I2C write ow byte
cyberjoey 9:36ba3626aab7 320 }
cyberjoey 9:36ba3626aab7 321 return 0x00;
cyberjoey 9:36ba3626aab7 322
cyberjoey 9:36ba3626aab7 323 }// end OW_macth_rom
cyberjoey 9:36ba3626aab7 324
cyberjoey 9:36ba3626aab7 325
cyberjoey 9:36ba3626aab7 326 // *****************************************************************************
cyberjoey 9:36ba3626aab7 327 // search_rom(char *) pointer to start of 2D array rom_id_list
cyberjoey 9:36ba3626aab7 328 // returns number of devices found
cyberjoey 9:36ba3626aab7 329 // *****************************************************************************
cyberjoey 9:36ba3626aab7 330
cyberjoey 9:36ba3626aab7 331
cyberjoey 9:36ba3626aab7 332 int search_rom(char rom_id_list[MAX_DEVICES][ID_LENGTH]){ // searches for all device on OW bus, returns # found
cyberjoey 9:36ba3626aab7 333
cyberjoey 9:36ba3626aab7 334 int bit_num;
cyberjoey 9:36ba3626aab7 335 int byte_num;
cyberjoey 9:36ba3626aab7 336 int last_zero;
cyberjoey 9:36ba3626aab7 337 int last_discrep;
cyberjoey 9:36ba3626aab7 338 int search_dir;
cyberjoey 9:36ba3626aab7 339 int rom_count;
cyberjoey 9:36ba3626aab7 340 char byte_mask;
cyberjoey 9:36ba3626aab7 341 int last_device;
cyberjoey 9:36ba3626aab7 342 int i;
cyberjoey 9:36ba3626aab7 343
cyberjoey 9:36ba3626aab7 344 char rom_id[8]; //used in rom search
cyberjoey 9:36ba3626aab7 345 char data[8];
cyberjoey 9:36ba3626aab7 346 char crc;
cyberjoey 9:36ba3626aab7 347
cyberjoey 9:36ba3626aab7 348 //init for first search only
cyberjoey 9:36ba3626aab7 349 last_device = 0;
cyberjoey 9:36ba3626aab7 350 last_discrep = 0;
cyberjoey 9:36ba3626aab7 351 rom_count = 0;
cyberjoey 9:36ba3626aab7 352
cyberjoey 9:36ba3626aab7 353 for(i=0;i<8;i++)rom_id[i] = 0x00; //clear rom_id
cyberjoey 9:36ba3626aab7 354
cyberjoey 9:36ba3626aab7 355 do{ // loop for each rom search (end when last_device = 1)
cyberjoey 9:36ba3626aab7 356 //db.printf("\r\nsearch next rom [%2d]",rom_count);
cyberjoey 9:36ba3626aab7 357
cyberjoey 9:36ba3626aab7 358 //init variable for each search
cyberjoey 9:36ba3626aab7 359 bit_num = 1;
cyberjoey 9:36ba3626aab7 360 byte_num = 0;
cyberjoey 9:36ba3626aab7 361 byte_mask = 1;
cyberjoey 9:36ba3626aab7 362 last_zero = 0;
cyberjoey 9:36ba3626aab7 363
cyberjoey 9:36ba3626aab7 364
cyberjoey 9:36ba3626aab7 365 //OW reset
cyberjoey 9:36ba3626aab7 366 if(OW_reset()){ //returns 1 if at least one device present
cyberjoey 9:36ba3626aab7 367 //test if last device found
cyberjoey 9:36ba3626aab7 368 if(last_device!=1){ // more devices to find
cyberjoey 9:36ba3626aab7 369 search_dir = 0;
cyberjoey 9:36ba3626aab7 370 OW_write_byte(OW_SEARCH); //send 0xF0 over one wire to init search rom
cyberjoey 9:36ba3626aab7 371
cyberjoey 9:36ba3626aab7 372 do{
cyberjoey 9:36ba3626aab7 373 //determine search direction
cyberjoey 9:36ba3626aab7 374 if(bit_num < last_discrep){ //before last discrepancy
cyberjoey 9:36ba3626aab7 375 if((rom_id[byte_num] & byte_mask) > 0){// use last rom path
cyberjoey 9:36ba3626aab7 376 search_dir = 1; // last path was 1
cyberjoey 9:36ba3626aab7 377 }else{
cyberjoey 9:36ba3626aab7 378 search_dir = 0; // last path was 0
cyberjoey 9:36ba3626aab7 379 }
cyberjoey 9:36ba3626aab7 380 }else{ // at or past last discrepancy
cyberjoey 9:36ba3626aab7 381 if(bit_num == last_discrep){ // at last discrepancy
cyberjoey 9:36ba3626aab7 382 search_dir = 1; //been here before so use 1
cyberjoey 9:36ba3626aab7 383 }else{
cyberjoey 9:36ba3626aab7 384 search_dir = 0; //past last discrepancy so use 0
cyberjoey 9:36ba3626aab7 385 }
cyberjoey 9:36ba3626aab7 386 }
cyberjoey 9:36ba3626aab7 387
cyberjoey 9:36ba3626aab7 388 //write direction bit and get reply
cyberjoey 9:36ba3626aab7 389 data[0] = 0x78;
cyberjoey 9:36ba3626aab7 390 data[1] = search_dir << 7; //sets bit 7 of status reg to search_dir
cyberjoey 9:36ba3626aab7 391 i2c.write(DS2484_ADD,data,2,1);
cyberjoey 9:36ba3626aab7 392
cyberjoey 9:36ba3626aab7 393 wait_us(250);
cyberjoey 9:36ba3626aab7 394
cyberjoey 9:36ba3626aab7 395 //read in rom_id bits
cyberjoey 9:36ba3626aab7 396 i2c.read(DS2484_ADD,data,1); // read status byte
cyberjoey 9:36ba3626aab7 397
cyberjoey 9:36ba3626aab7 398 //(todo) check for no device error here
cyberjoey 9:36ba3626aab7 399
cyberjoey 9:36ba3626aab7 400 //get search direction used by triplet command
cyberjoey 9:36ba3626aab7 401
cyberjoey 9:36ba3626aab7 402 if(data[0]&0x80){ //true --> DIR bit = 1
cyberjoey 9:36ba3626aab7 403 search_dir = 1;
cyberjoey 9:36ba3626aab7 404 }else{
cyberjoey 9:36ba3626aab7 405 search_dir = 0;
cyberjoey 9:36ba3626aab7 406 }
cyberjoey 9:36ba3626aab7 407
cyberjoey 9:36ba3626aab7 408 //test for discrepancy (both 0 and 1 present at current bit number)(TSB = 0 (1's present) and SBR = 0 (0's present))
cyberjoey 9:36ba3626aab7 409 if(!(data[0] & 0x60)){ // true --> discrepancy exist, both TSB and SBR = 0
cyberjoey 9:36ba3626aab7 410 if(search_dir == 0)last_zero = bit_num;
cyberjoey 9:36ba3626aab7 411 }
cyberjoey 9:36ba3626aab7 412 if(search_dir == 1){ // write search dir to rom bit
cyberjoey 9:36ba3626aab7 413 rom_id[byte_num] |= byte_mask;
cyberjoey 9:36ba3626aab7 414 }else{
cyberjoey 9:36ba3626aab7 415 rom_id[byte_num] &= ~byte_mask;
cyberjoey 9:36ba3626aab7 416 }
cyberjoey 9:36ba3626aab7 417
cyberjoey 9:36ba3626aab7 418 //increment bit_num and byte_num if needed
cyberjoey 9:36ba3626aab7 419 bit_num++;
cyberjoey 9:36ba3626aab7 420 byte_mask <<= 1; //rotate 1 bit left
cyberjoey 9:36ba3626aab7 421 if(byte_mask == 0){ //if bit shifts out of byte set byte to 1
cyberjoey 9:36ba3626aab7 422 byte_num++; //also increnent byt num
cyberjoey 9:36ba3626aab7 423 byte_mask = 1;
cyberjoey 9:36ba3626aab7 424 }
cyberjoey 9:36ba3626aab7 425 // pc.printf("sdx[%d] lz[%2d] byte[%d] mask[%02X] bn[%d] ROM[%02X %02X %02X]\n\r",search_dir,last_zero,byte_num,byte_mask, byte_num, rom_id[2], rom_id[1], rom_id[0]);
cyberjoey 9:36ba3626aab7 426
cyberjoey 9:36ba3626aab7 427
cyberjoey 9:36ba3626aab7 428 }while(bit_num<65); //bit nun started at 1 so end after 64
cyberjoey 9:36ba3626aab7 429 last_discrep = last_zero;
cyberjoey 9:36ba3626aab7 430 if(last_discrep == 0)last_device = 1;
cyberjoey 9:36ba3626aab7 431 //copy rom_id into rom_id_list and calc crc of first 7 bytes
cyberjoey 9:36ba3626aab7 432 crc = 0x00; // reset crc8 total to 0
cyberjoey 9:36ba3626aab7 433 //db.printf(" -- rom id[ ");
cyberjoey 9:36ba3626aab7 434 for(i=7;i>=0;i--){
cyberjoey 9:36ba3626aab7 435 rom_id_list[rom_count][i] = rom_id[i] ;
cyberjoey 9:36ba3626aab7 436 //db.printf("%02X ",rom_id[i]);
cyberjoey 9:36ba3626aab7 437 }
cyberjoey 9:36ba3626aab7 438 //db.printf("]\r\n");
cyberjoey 9:36ba3626aab7 439 //db.printf("last_device[%2d]\r\n",last_device);
cyberjoey 9:36ba3626aab7 440 //db.printf("last_zero[%2d]\r\n",last_zero);
cyberjoey 9:36ba3626aab7 441 //db.printf("last_discrep[%2d]\r\n",last_discrep);
cyberjoey 9:36ba3626aab7 442
cyberjoey 9:36ba3626aab7 443 //clac_crc of rom ID
cyberjoey 9:36ba3626aab7 444 for (i=0;i<7;i++){
cyberjoey 9:36ba3626aab7 445 crc = calc_crc8(crc, rom_id[i]);
cyberjoey 9:36ba3626aab7 446 }
cyberjoey 9:36ba3626aab7 447 //db.printf("crc8 = [%02X]\r\n",crc);
cyberjoey 9:36ba3626aab7 448
cyberjoey 9:36ba3626aab7 449
cyberjoey 9:36ba3626aab7 450 rom_count++;
cyberjoey 9:36ba3626aab7 451 }//if(last_device..)
cyberjoey 9:36ba3626aab7 452 }else{//if prescent -- if no device present rom count is 0
cyberjoey 9:36ba3626aab7 453 return 0;
cyberjoey 9:36ba3626aab7 454 }
cyberjoey 9:36ba3626aab7 455 }while(last_device == 0);
cyberjoey 9:36ba3626aab7 456 return rom_count;
cyberjoey 9:36ba3626aab7 457 }// end search_rom()
cyberjoey 9:36ba3626aab7 458
cyberjoey 9:36ba3626aab7 459 // *****************************************************************************
cyberjoey 9:36ba3626aab7 460 // alarm_search(char *) pointer to start of 2D array rom_id_list
cyberjoey 9:36ba3626aab7 461 // returns number of devices found with alarm triggered
cyberjoey 9:36ba3626aab7 462 // *****************************************************************************
cyberjoey 9:36ba3626aab7 463
cyberjoey 9:36ba3626aab7 464 int alarm_search(char rom_id_list[MAX_DEVICES][ID_LENGTH]){ // searches for all devices with alarm triggered on OW bus, returns # found
switches 0:60a522ae2e35 465
cyberjoey 9:36ba3626aab7 466 int bit_num;
cyberjoey 9:36ba3626aab7 467 int byte_num;
cyberjoey 9:36ba3626aab7 468 int last_zero;
cyberjoey 9:36ba3626aab7 469 int last_discrep;
cyberjoey 9:36ba3626aab7 470 int search_dir;
cyberjoey 9:36ba3626aab7 471 int rom_count;
cyberjoey 9:36ba3626aab7 472 char byte_mask;
cyberjoey 9:36ba3626aab7 473 int last_device;
cyberjoey 9:36ba3626aab7 474 int i;
cyberjoey 9:36ba3626aab7 475
cyberjoey 9:36ba3626aab7 476 char rom_id[8]; //used in rom search
cyberjoey 9:36ba3626aab7 477 char data[8];
cyberjoey 9:36ba3626aab7 478 char crc;
cyberjoey 9:36ba3626aab7 479
cyberjoey 9:36ba3626aab7 480 //init for first search only
cyberjoey 9:36ba3626aab7 481 last_device = 0;
cyberjoey 9:36ba3626aab7 482 last_discrep = 0;
cyberjoey 9:36ba3626aab7 483 rom_count = 0;
cyberjoey 9:36ba3626aab7 484
cyberjoey 9:36ba3626aab7 485 for(i=0;i<8;i++)rom_id[i] = 0x00; //clear rom_id
cyberjoey 9:36ba3626aab7 486
cyberjoey 9:36ba3626aab7 487 do{ // loop for each rom search (end when last_device = 1)
cyberjoey 9:36ba3626aab7 488
cyberjoey 9:36ba3626aab7 489 //init variable for each search
cyberjoey 9:36ba3626aab7 490 bit_num = 1;
cyberjoey 9:36ba3626aab7 491 byte_num = 0;
cyberjoey 9:36ba3626aab7 492 byte_mask = 1;
cyberjoey 9:36ba3626aab7 493 last_zero = 0;
cyberjoey 9:36ba3626aab7 494
cyberjoey 9:36ba3626aab7 495
cyberjoey 9:36ba3626aab7 496 //OW reset
cyberjoey 9:36ba3626aab7 497 if(OW_reset()){ //returns 1 if at least one device present
cyberjoey 9:36ba3626aab7 498 //test if last device found
cyberjoey 9:36ba3626aab7 499 if(last_device!=1){ // more devices to find
cyberjoey 9:36ba3626aab7 500 search_dir = 0;
cyberjoey 9:36ba3626aab7 501 OW_write_byte(OW_ALARM); //send 0xEC over one wire to init alarm search
cyberjoey 9:36ba3626aab7 502
cyberjoey 9:36ba3626aab7 503 do{
cyberjoey 9:36ba3626aab7 504 //determine search direction
cyberjoey 9:36ba3626aab7 505 if(bit_num < last_discrep){ //before last discrepancy
cyberjoey 9:36ba3626aab7 506 if((rom_id[byte_num] & byte_mask) > 0){// use last rom path
cyberjoey 9:36ba3626aab7 507 search_dir = 1; // last path was 1
cyberjoey 9:36ba3626aab7 508 }else{
cyberjoey 9:36ba3626aab7 509 search_dir = 0; // last path was 0
cyberjoey 9:36ba3626aab7 510 }
cyberjoey 9:36ba3626aab7 511 }else{ // at or past last discrepancy
cyberjoey 9:36ba3626aab7 512 if(bit_num == last_discrep){ // at last discrepancy
cyberjoey 9:36ba3626aab7 513 search_dir = 1; //been here before so use 1
cyberjoey 9:36ba3626aab7 514 }else{
cyberjoey 9:36ba3626aab7 515 search_dir = 0; //past last discrepancy so use 0
cyberjoey 9:36ba3626aab7 516 }
cyberjoey 9:36ba3626aab7 517 }
cyberjoey 9:36ba3626aab7 518
cyberjoey 9:36ba3626aab7 519 //write direction bit and get reply
cyberjoey 9:36ba3626aab7 520 data[0] = 0x78;
cyberjoey 9:36ba3626aab7 521 data[1] = search_dir << 7; //sets bit 7 of status reg to search_dir
cyberjoey 9:36ba3626aab7 522 i2c.write(DS2484_ADD,data,2,1);
cyberjoey 9:36ba3626aab7 523
cyberjoey 9:36ba3626aab7 524 wait_us(250);
cyberjoey 9:36ba3626aab7 525
cyberjoey 9:36ba3626aab7 526 //read in rom_id bits
cyberjoey 9:36ba3626aab7 527 i2c.read(DS2484_ADD,data,1); // read status byte
cyberjoey 9:36ba3626aab7 528
cyberjoey 9:36ba3626aab7 529 //(todo) check for no device error here
cyberjoey 9:36ba3626aab7 530
cyberjoey 9:36ba3626aab7 531 //get search direction used by triplet command
cyberjoey 9:36ba3626aab7 532
cyberjoey 9:36ba3626aab7 533 if(data[0]&0x80){ //true --> DIR bit = 1
cyberjoey 9:36ba3626aab7 534 search_dir = 1;
cyberjoey 9:36ba3626aab7 535 }else{
cyberjoey 9:36ba3626aab7 536 search_dir = 0;
cyberjoey 9:36ba3626aab7 537 }
cyberjoey 9:36ba3626aab7 538
cyberjoey 9:36ba3626aab7 539 //test for discrepancy (both 0 and 1 present at current bit number)(TSB = 0 (1's present) and SBR = 0 (0's present))
cyberjoey 9:36ba3626aab7 540 if(!(data[0] & 0x60)){ // true --> discrepancy exist, both TSB and SBR = 0
cyberjoey 9:36ba3626aab7 541 if(search_dir == 0)last_zero = bit_num;
cyberjoey 9:36ba3626aab7 542 }
cyberjoey 9:36ba3626aab7 543 if(search_dir == 1){ // write search dir to rom bit
cyberjoey 9:36ba3626aab7 544 rom_id[byte_num] |= byte_mask;
cyberjoey 9:36ba3626aab7 545 }else{
cyberjoey 9:36ba3626aab7 546 rom_id[byte_num] &= ~byte_mask;
cyberjoey 9:36ba3626aab7 547 }
cyberjoey 9:36ba3626aab7 548
cyberjoey 9:36ba3626aab7 549 //increment bit_num and byte_num if needed
cyberjoey 9:36ba3626aab7 550 bit_num++;
cyberjoey 9:36ba3626aab7 551 byte_mask <<= 1; //rotate 1 bit left
cyberjoey 9:36ba3626aab7 552 if(byte_mask == 0){ //if bit shifts out of byte set byte to 1
cyberjoey 9:36ba3626aab7 553 byte_num++; //also increnent byt num
cyberjoey 9:36ba3626aab7 554 byte_mask = 1;
cyberjoey 9:36ba3626aab7 555 }
cyberjoey 9:36ba3626aab7 556
cyberjoey 9:36ba3626aab7 557
cyberjoey 9:36ba3626aab7 558 }while(bit_num<65); //bit nun started at 1 so end after 64
cyberjoey 9:36ba3626aab7 559 last_discrep = last_zero;
cyberjoey 9:36ba3626aab7 560 if(last_discrep == 0)last_device = 1;
cyberjoey 9:36ba3626aab7 561 //copy rom_id into rom_id_list and calc crc of first 7 bytes
cyberjoey 9:36ba3626aab7 562 crc = 0x00; // reset crc8 total to 0
cyberjoey 9:36ba3626aab7 563 //db.printf(" -- rom id[ ");
cyberjoey 9:36ba3626aab7 564 for(i=7;i>=0;i--){
cyberjoey 9:36ba3626aab7 565 rom_id_list[rom_count][i] = rom_id[i];
cyberjoey 9:36ba3626aab7 566 }
cyberjoey 9:36ba3626aab7 567
cyberjoey 9:36ba3626aab7 568 //clac_crc of rom ID
cyberjoey 9:36ba3626aab7 569 for (i=0;i<7;i++){
cyberjoey 9:36ba3626aab7 570 crc = calc_crc8(crc, rom_id[i]);
cyberjoey 9:36ba3626aab7 571 }
cyberjoey 9:36ba3626aab7 572
cyberjoey 9:36ba3626aab7 573 rom_count++;
cyberjoey 9:36ba3626aab7 574 }//if(last_device..)
cyberjoey 9:36ba3626aab7 575 }else{//if prescent -- if no device present rom count is 0
cyberjoey 9:36ba3626aab7 576 return 0;
cyberjoey 9:36ba3626aab7 577 }
cyberjoey 9:36ba3626aab7 578 }while(last_device == 0);
cyberjoey 9:36ba3626aab7 579
cyberjoey 9:36ba3626aab7 580 //check if rom_id from alarm search is all 1s (this means there was a presence pulse but no alarm is triggered)
cyberjoey 9:36ba3626aab7 581 bool bad_rom_id = true;
cyberjoey 9:36ba3626aab7 582 for(int i = 0; i < 7; i++)
cyberjoey 9:36ba3626aab7 583 {
cyberjoey 9:36ba3626aab7 584 if(rom_id_list[0][i] != 0xFF)
cyberjoey 9:36ba3626aab7 585 bad_rom_id = false; //found a byte in the rom id that isn't all 1s
cyberjoey 9:36ba3626aab7 586 }
cyberjoey 9:36ba3626aab7 587 if(bad_rom_id)
cyberjoey 9:36ba3626aab7 588 return 0;
cyberjoey 9:36ba3626aab7 589
cyberjoey 9:36ba3626aab7 590 return rom_count;
cyberjoey 9:36ba3626aab7 591 }// end alarm_search()
cyberjoey 9:36ba3626aab7 592
cyberjoey 9:36ba3626aab7 593
cyberjoey 9:36ba3626aab7 594 // ******************** write_OW_register() ********************************
cyberjoey 9:36ba3626aab7 595 // write_OW_register(char*, int, int, char*)
cyberjoey 9:36ba3626aab7 596 // char* pointer to rom_id
cyberjoey 9:36ba3626aab7 597 // int start address
cyberjoey 9:36ba3626aab7 598 // int number of bytes to write
cyberjoey 9:36ba3626aab7 599 // char* pointer to write data location
cyberjoey 9:36ba3626aab7 600 // returns 0 if CRC match data
cyberjoey 9:36ba3626aab7 601 // returns -1 if CRC does not match data
cyberjoey 9:36ba3626aab7 602 //
cyberjoey 9:36ba3626aab7 603 // *****************************************************************************
cyberjoey 9:36ba3626aab7 604
cyberjoey 9:36ba3626aab7 605
cyberjoey 9:36ba3626aab7 606
cyberjoey 9:36ba3626aab7 607 int write_OW_register(char *device_ID, int start_add, int n, char *data){
cyberjoey 9:36ba3626aab7 608 int i;
cyberjoey 9:36ba3626aab7 609 //select device
cyberjoey 9:36ba3626aab7 610 OW_reset();
cyberjoey 9:36ba3626aab7 611 OW_match_rom(device_ID);
cyberjoey 9:36ba3626aab7 612 //set start address
cyberjoey 9:36ba3626aab7 613 OW_write_byte(OT07_OW_WRITE); // send 0xCC, OW write register command for OT07
cyberjoey 9:36ba3626aab7 614 OW_write_byte(start_add); // send write register start address
cyberjoey 9:36ba3626aab7 615 OW_write_byte(n-1); // send length of bytes to write (00-> one byte)
cyberjoey 9:36ba3626aab7 616 for(i=0;i<n;i++){ // send n bytes of data
cyberjoey 9:36ba3626aab7 617 OW_write_byte(data[i]);
cyberjoey 9:36ba3626aab7 618 }
cyberjoey 9:36ba3626aab7 619 OW_read_byte(data,2); // read 2 byte CRC
cyberjoey 9:36ba3626aab7 620
cyberjoey 9:36ba3626aab7 621 // --- todo ----
cyberjoey 9:36ba3626aab7 622 // calculate CRC of
cyberjoey 9:36ba3626aab7 623 // Command + length + n bytes sent
cyberjoey 9:36ba3626aab7 624 // compare with 2 bytes read
cyberjoey 9:36ba3626aab7 625
cyberjoey 9:36ba3626aab7 626 return 0;
cyberjoey 9:36ba3626aab7 627
cyberjoey 9:36ba3626aab7 628 }//end write_OW_register
cyberjoey 9:36ba3626aab7 629
cyberjoey 9:36ba3626aab7 630
cyberjoey 9:36ba3626aab7 631
cyberjoey 9:36ba3626aab7 632
cyberjoey 9:36ba3626aab7 633 // ******************** read_OW_register() ********************************
cyberjoey 9:36ba3626aab7 634 // read_OW_register(char*, int, int, char*)
cyberjoey 9:36ba3626aab7 635 // char* pointer to rom_id
cyberjoey 9:36ba3626aab7 636 // int start address
cyberjoey 9:36ba3626aab7 637 // int number of bytes to read, not including CRC bytes
cyberjoey 9:36ba3626aab7 638 // char* pointer to save data location
cyberjoey 9:36ba3626aab7 639 // returns 0 if CRC match data
cyberjoey 9:36ba3626aab7 640 // returns -1 if CRC does not match data
cyberjoey 9:36ba3626aab7 641 //
cyberjoey 9:36ba3626aab7 642 // *****************************************************************************
cyberjoey 9:36ba3626aab7 643
cyberjoey 9:36ba3626aab7 644
cyberjoey 9:36ba3626aab7 645
cyberjoey 9:36ba3626aab7 646 int read_OW_register(char *device_ID, int start_add, int n, char *data){
cyberjoey 9:36ba3626aab7 647
cyberjoey 9:36ba3626aab7 648 //int i;
cyberjoey 9:36ba3626aab7 649 //select device
cyberjoey 9:36ba3626aab7 650 OW_reset();
cyberjoey 9:36ba3626aab7 651 OW_match_rom(device_ID);
cyberjoey 9:36ba3626aab7 652 //set start address
cyberjoey 9:36ba3626aab7 653 OW_write_byte(OT07_OW_READ); // send 0x33, OW read register command for OT07
cyberjoey 9:36ba3626aab7 654 OW_write_byte(start_add); // send read register start address
cyberjoey 9:36ba3626aab7 655 OW_write_byte(n-1); // send length of bytes to read (0 -> 1 byte)
cyberjoey 9:36ba3626aab7 656 OW_read_byte(data,n+2); // read n bytes plus 2 byte CRC
cyberjoey 9:36ba3626aab7 657
cyberjoey 9:36ba3626aab7 658 // debug output
cyberjoey 9:36ba3626aab7 659 //for(i=0;i<n+2;i++) db.printf("read_OW_register - [%2d][%02X]\r\n",i,data[i]);
cyberjoey 9:36ba3626aab7 660
cyberjoey 9:36ba3626aab7 661
cyberjoey 9:36ba3626aab7 662 // --- todo ----
cyberjoey 9:36ba3626aab7 663 // calculate CRC of
cyberjoey 9:36ba3626aab7 664 // Command + length + n bytes
cyberjoey 9:36ba3626aab7 665 // compare with last 2 bytes read
cyberjoey 9:36ba3626aab7 666 return 0;
cyberjoey 9:36ba3626aab7 667
cyberjoey 9:36ba3626aab7 668 }//end read_OW_register
cyberjoey 9:36ba3626aab7 669
cyberjoey 9:36ba3626aab7 670 int set_test_mode(char *device_id){
cyberjoey 9:36ba3626aab7 671 char data[4];
cyberjoey 9:36ba3626aab7 672
cyberjoey 9:36ba3626aab7 673 // enter test mode
cyberjoey 9:36ba3626aab7 674 OW_reset();
cyberjoey 9:36ba3626aab7 675 OW_match_rom(device_id); // match ROM
cyberjoey 9:36ba3626aab7 676 OW_write_byte(OT07_OW_WRITE); // device write register command
cyberjoey 9:36ba3626aab7 677 OW_write_byte(0xFF); // device register address
cyberjoey 9:36ba3626aab7 678 OW_write_byte(0x00); // number of bytes to write -1
cyberjoey 9:36ba3626aab7 679 OW_write_byte(0x54); // first half of test mode pass code
cyberjoey 9:36ba3626aab7 680 OW_read_byte(data,2); // read 2 byte CRC
cyberjoey 9:36ba3626aab7 681
cyberjoey 9:36ba3626aab7 682 OW_reset();
cyberjoey 9:36ba3626aab7 683 OW_match_rom(device_id);
cyberjoey 9:36ba3626aab7 684 OW_write_byte(OT07_OW_WRITE); // device write register command
cyberjoey 9:36ba3626aab7 685 OW_write_byte(0xFF); // device register address
cyberjoey 9:36ba3626aab7 686 OW_write_byte(0x00); // number of bytes to write -1
cyberjoey 9:36ba3626aab7 687 OW_write_byte(0x4D); // second half of test mode pass code
cyberjoey 9:36ba3626aab7 688 OW_read_byte(data,2); // read 2 byte CRC
cyberjoey 9:36ba3626aab7 689
cyberjoey 9:36ba3626aab7 690 // set ADC_ENABLED
cyberjoey 9:36ba3626aab7 691 OW_reset();
cyberjoey 9:36ba3626aab7 692 OW_match_rom(device_id);
cyberjoey 9:36ba3626aab7 693 OW_write_byte(OT07_OW_WRITE); // device write register command
cyberjoey 9:36ba3626aab7 694 OW_write_byte(0x81); // device register address
cyberjoey 9:36ba3626aab7 695 OW_write_byte(0x00); // number of bytes to write -1
cyberjoey 9:36ba3626aab7 696 OW_write_byte(0x04); // ADC_ENABLED code
cyberjoey 9:36ba3626aab7 697 OW_read_byte(data,2); // read 2 byte CRC
cyberjoey 9:36ba3626aab7 698
cyberjoey 9:36ba3626aab7 699 OW_reset();
cyberjoey 9:36ba3626aab7 700 OW_match_rom(device_id);
cyberjoey 9:36ba3626aab7 701 OW_write_byte(OT07_OW_WRITE); // device write register command
cyberjoey 9:36ba3626aab7 702 OW_write_byte(0x98); // device register address
cyberjoey 9:36ba3626aab7 703 OW_write_byte(0x05); // number of bytes to write -1
cyberjoey 9:36ba3626aab7 704 OW_write_byte(0x40); // add 98 data 40
cyberjoey 9:36ba3626aab7 705 OW_write_byte(0xD4); // add 99 data D4
cyberjoey 9:36ba3626aab7 706 OW_write_byte(0xE0); // add 9A data E0
cyberjoey 9:36ba3626aab7 707 OW_write_byte(0xB3); // add 9B data B3
cyberjoey 9:36ba3626aab7 708 OW_write_byte(0x09); // add 9C data 09
cyberjoey 9:36ba3626aab7 709 OW_write_byte(0xBA); // add 9D data BA
cyberjoey 9:36ba3626aab7 710 OW_read_byte(data,2); // read 2 byte CRC
cyberjoey 9:36ba3626aab7 711
cyberjoey 9:36ba3626aab7 712
cyberjoey 9:36ba3626aab7 713 //OTP copy
cyberjoey 9:36ba3626aab7 714 OW_reset();
cyberjoey 9:36ba3626aab7 715 OW_match_rom(device_id);
cyberjoey 9:36ba3626aab7 716 OW_write_byte(OT07_OW_WRITE); // device write register command
cyberjoey 9:36ba3626aab7 717 OW_write_byte(0x80); // device register address
cyberjoey 9:36ba3626aab7 718 OW_write_byte(0x00); // number of bytes to write -1
cyberjoey 9:36ba3626aab7 719 OW_write_byte(0x82); //
cyberjoey 9:36ba3626aab7 720 OW_read_byte(data,2); // read 2 byte CRC
cyberjoey 9:36ba3626aab7 721
cyberjoey 9:36ba3626aab7 722 OW_reset();
cyberjoey 9:36ba3626aab7 723 OW_match_rom(device_id);
cyberjoey 9:36ba3626aab7 724 OW_write_byte(OT07_OW_WRITE); // device write register command
cyberjoey 9:36ba3626aab7 725 OW_write_byte(0x80); // device register address
cyberjoey 9:36ba3626aab7 726 OW_write_byte(0x00); // number of bytes to write -1
cyberjoey 9:36ba3626aab7 727 OW_write_byte(0x02); //
cyberjoey 9:36ba3626aab7 728 OW_read_byte(data,2); // read 2 byte CRC
cyberjoey 9:36ba3626aab7 729
cyberjoey 9:36ba3626aab7 730
cyberjoey 9:36ba3626aab7 731 OW_reset();
cyberjoey 9:36ba3626aab7 732 OW_match_rom(device_id);
cyberjoey 9:36ba3626aab7 733 OW_write_byte(OT07_OW_WRITE); // device write register command
cyberjoey 9:36ba3626aab7 734 OW_write_byte(0xFF); // device register address
cyberjoey 9:36ba3626aab7 735 OW_write_byte(0x00); // number of bytes to write -1
cyberjoey 9:36ba3626aab7 736 OW_write_byte(0x00); // exit Test mode
cyberjoey 9:36ba3626aab7 737 OW_read_byte(data,2); // read 2 byte CRC
cyberjoey 9:36ba3626aab7 738 return 0;
cyberjoey 9:36ba3626aab7 739 }// end set_test_mode()
cyberjoey 9:36ba3626aab7 740
cyberjoey 9:36ba3626aab7 741
cyberjoey 9:36ba3626aab7 742
cyberjoey 9:36ba3626aab7 743 // ******************** convert_temperature() ********************************
cyberjoey 9:36ba3626aab7 744 // convert_temperature()
cyberjoey 9:36ba3626aab7 745 // returns 0
cyberjoey 9:36ba3626aab7 746 // dose not block for 0.75 seconds.
cyberjoey 9:36ba3626aab7 747 // *****************************************************************************
cyberjoey 9:36ba3626aab7 748
cyberjoey 9:36ba3626aab7 749 int convert_temperature(){ // convert sent to all OW devices
cyberjoey 9:36ba3626aab7 750
cyberjoey 9:36ba3626aab7 751 char data[8];
cyberjoey 9:36ba3626aab7 752 OW_reset();
cyberjoey 9:36ba3626aab7 753
cyberjoey 9:36ba3626aab7 754 OW_write_byte(OW_SKIP); // send 0xCC, skip rom command
cyberjoey 9:36ba3626aab7 755
cyberjoey 9:36ba3626aab7 756 // activate strong pullup
cyberjoey 9:36ba3626aab7 757 data[0] = WDC; // send 0xD2 Write Device Configuration
cyberjoey 9:36ba3626aab7 758 data[1] = 0xA5; // 1010 0101 b strong and active pullup on
cyberjoey 9:36ba3626aab7 759 i2c.write(DS2484_ADD,data,2,0);
cyberjoey 9:36ba3626aab7 760
cyberjoey 9:36ba3626aab7 761 //convert command
cyberjoey 9:36ba3626aab7 762 OW_write_byte(OT07_OW_CONVERT); // send 0x44, Convert Temperature
cyberjoey 9:36ba3626aab7 763 OW_read_byte(data,2); // read 2 byte CRC
cyberjoey 9:36ba3626aab7 764 return 0;
cyberjoey 9:36ba3626aab7 765 }
cyberjoey 9:36ba3626aab7 766
cyberjoey 9:36ba3626aab7 767
cyberjoey 9:36ba3626aab7 768 // ******************** convert_temperature() ********************************
cyberjoey 9:36ba3626aab7 769 // convert_temperature(char *) takes 8 byte rom_id as input
cyberjoey 9:36ba3626aab7 770 // returns 0
cyberjoey 9:36ba3626aab7 771 // dose not block for 0.75 seconds.
cyberjoey 9:36ba3626aab7 772 // *****************************************************************************
cyberjoey 9:36ba3626aab7 773
cyberjoey 9:36ba3626aab7 774 int convert_temperature(char *device_id){
cyberjoey 9:36ba3626aab7 775
cyberjoey 9:36ba3626aab7 776 char data[8];
cyberjoey 9:36ba3626aab7 777 OW_reset();
cyberjoey 9:36ba3626aab7 778 OW_match_rom(device_id); // send device id
cyberjoey 9:36ba3626aab7 779
cyberjoey 9:36ba3626aab7 780 // activate strong pullup
cyberjoey 9:36ba3626aab7 781 data[0] = WDC; // send 0xD2 Write Device Configuration
cyberjoey 9:36ba3626aab7 782 data[1] = 0xA5; // 1010 0101 b strong and active pullup on
cyberjoey 9:36ba3626aab7 783 i2c.write(DS2484_ADD,data,2,0);
cyberjoey 9:36ba3626aab7 784
cyberjoey 9:36ba3626aab7 785 //convert command
cyberjoey 9:36ba3626aab7 786 OW_write_byte(OT07_OW_CONVERT); // send 0x44, Convert Temperature
cyberjoey 9:36ba3626aab7 787 OW_read_byte(data,2); // read 2 byte CRC
cyberjoey 9:36ba3626aab7 788 return 0;
cyberjoey 9:36ba3626aab7 789 }
cyberjoey 9:36ba3626aab7 790
cyberjoey 9:36ba3626aab7 791 //************************ get_temperature() *********************************
cyberjoey 9:36ba3626aab7 792 // get_temperature(char *) takes 8 byte rom_id as input
cyberjoey 9:36ba3626aab7 793 // returns double temperature in oC
cyberjoey 9:36ba3626aab7 794 //******************************************************************************
cyberjoey 9:36ba3626aab7 795
cyberjoey 9:36ba3626aab7 796 double get_temperature(char *device_id){
cyberjoey 9:36ba3626aab7 797
cyberjoey 9:36ba3626aab7 798 char t[4];
cyberjoey 9:36ba3626aab7 799 double T;
cyberjoey 9:36ba3626aab7 800 int count;
cyberjoey 9:36ba3626aab7 801 // char data[2];
cyberjoey 9:36ba3626aab7 802
cyberjoey 9:36ba3626aab7 803 read_OW_register(device_id,OT07_FIFO_DATA,0x02,t); // Read temperature from FIFO, 2 bytes
cyberjoey 9:36ba3626aab7 804 //db.printf("get_temperature -- FIFO[%02X %02X] CRC[%02X %02X]\r\n",t[0],t[1],t[2],t[3]);
cyberjoey 9:36ba3626aab7 805 //calculate temperture from data
cyberjoey 9:36ba3626aab7 806 count = (int)(t[0]*256 + t[1]);
cyberjoey 9:36ba3626aab7 807 if (count >= 32768)count = count - 65536; // 2s comp
cyberjoey 9:36ba3626aab7 808 T = (double)count*0.005;
cyberjoey 9:36ba3626aab7 809
cyberjoey 9:36ba3626aab7 810 //db.printf("T = %f count[%5d]\r\n", T,count);
cyberjoey 9:36ba3626aab7 811 return T;
cyberjoey 9:36ba3626aab7 812 }// end get_temperature()
cyberjoey 9:36ba3626aab7 813
cyberjoey 9:36ba3626aab7 814
cyberjoey 10:148da21c297e 815 void write_settings_file(int interval, bool device_logged[MAX_DEVICES])
cyberjoey 10:148da21c297e 816 {
cyberjoey 10:148da21c297e 817 FILE *fp = fopen(settings_file, "w");
cyberjoey 10:148da21c297e 818 if (fp != NULL)
cyberjoey 10:148da21c297e 819 {
cyberjoey 10:148da21c297e 820 fprintf(fp, "i %d\r\n", interval);
cyberjoey 10:148da21c297e 821
cyberjoey 10:148da21c297e 822 fprintf(fp, "d");
cyberjoey 10:148da21c297e 823
cyberjoey 10:148da21c297e 824 for(int i = 0; i < MAX_DEVICES; i++)
cyberjoey 10:148da21c297e 825 {
cyberjoey 10:148da21c297e 826 if(device_logged[i] == true)
cyberjoey 10:148da21c297e 827 {
cyberjoey 10:148da21c297e 828 fprintf(fp," %d", i);
cyberjoey 10:148da21c297e 829 }
cyberjoey 10:148da21c297e 830 }
cyberjoey 10:148da21c297e 831 fprintf(fp,"\r\n");
cyberjoey 10:148da21c297e 832
cyberjoey 10:148da21c297e 833 fclose(fp);
cyberjoey 10:148da21c297e 834 }
cyberjoey 10:148da21c297e 835 return;
cyberjoey 10:148da21c297e 836 }
cyberjoey 10:148da21c297e 837
cyberjoey 10:148da21c297e 838 bool print_settings_file()
cyberjoey 10:148da21c297e 839 {
cyberjoey 10:148da21c297e 840 FILE *fp = fopen(settings_file, "r");
cyberjoey 10:148da21c297e 841 if (fp != NULL)
cyberjoey 10:148da21c297e 842 {
cyberjoey 10:148da21c297e 843 pc.printf("*\r\n");
cyberjoey 10:148da21c297e 844
cyberjoey 10:148da21c297e 845 // Read contents from file
cyberjoey 10:148da21c297e 846 char c = fgetc(fp);
cyberjoey 11:94a7379c0db8 847
cyberjoey 10:148da21c297e 848 while (!feof(fp))
cyberjoey 10:148da21c297e 849 {
cyberjoey 10:148da21c297e 850 pc.printf("%c", c);
cyberjoey 10:148da21c297e 851 c = fgetc(fp);
cyberjoey 10:148da21c297e 852 }
cyberjoey 10:148da21c297e 853
cyberjoey 10:148da21c297e 854 pc.printf("*\r\n");
cyberjoey 10:148da21c297e 855
cyberjoey 10:148da21c297e 856 fclose(fp);
cyberjoey 10:148da21c297e 857 }
cyberjoey 10:148da21c297e 858 else
cyberjoey 10:148da21c297e 859 {
cyberjoey 10:148da21c297e 860 return false;
cyberjoey 10:148da21c297e 861 }
cyberjoey 10:148da21c297e 862 return true;
cyberjoey 10:148da21c297e 863 }
cyberjoey 10:148da21c297e 864
cyberjoey 10:148da21c297e 865 bool print_log_file()
cyberjoey 10:148da21c297e 866 {
cyberjoey 10:148da21c297e 867 FILE *fp = fopen(log_file, "r");
cyberjoey 10:148da21c297e 868 if (fp != NULL)
cyberjoey 10:148da21c297e 869 {
cyberjoey 10:148da21c297e 870 pc.printf("*\r\n");
cyberjoey 10:148da21c297e 871
cyberjoey 10:148da21c297e 872 // Read contents from file
cyberjoey 10:148da21c297e 873 char c = fgetc(fp);
cyberjoey 10:148da21c297e 874 while (!feof(fp))
cyberjoey 10:148da21c297e 875 {
cyberjoey 10:148da21c297e 876 pc.printf("%c", c);
cyberjoey 10:148da21c297e 877 c = fgetc(fp);
cyberjoey 10:148da21c297e 878 }
cyberjoey 10:148da21c297e 879
cyberjoey 10:148da21c297e 880 pc.printf("*\r\n");
cyberjoey 10:148da21c297e 881
cyberjoey 10:148da21c297e 882 fclose(fp);
cyberjoey 10:148da21c297e 883 }
cyberjoey 10:148da21c297e 884 else
cyberjoey 10:148da21c297e 885 {
cyberjoey 10:148da21c297e 886 return false;
cyberjoey 10:148da21c297e 887 }
cyberjoey 10:148da21c297e 888 return true;
cyberjoey 10:148da21c297e 889 }
cyberjoey 10:148da21c297e 890
cyberjoey 11:94a7379c0db8 891 int getline(char **lineptr, int *n, FILE *stream) {
cyberjoey 11:94a7379c0db8 892 char *bufptr = NULL;
cyberjoey 11:94a7379c0db8 893 char *p = bufptr;
cyberjoey 11:94a7379c0db8 894 size_t size;
cyberjoey 11:94a7379c0db8 895 int c;
cyberjoey 11:94a7379c0db8 896
cyberjoey 11:94a7379c0db8 897 if (lineptr == NULL) {
cyberjoey 11:94a7379c0db8 898 return -1;
cyberjoey 11:94a7379c0db8 899 }
cyberjoey 11:94a7379c0db8 900 if (stream == NULL) {
cyberjoey 11:94a7379c0db8 901 return -1;
cyberjoey 11:94a7379c0db8 902 }
cyberjoey 11:94a7379c0db8 903 if (n == NULL) {
cyberjoey 11:94a7379c0db8 904 return -1;
cyberjoey 11:94a7379c0db8 905 }
cyberjoey 11:94a7379c0db8 906 bufptr = *lineptr;
cyberjoey 11:94a7379c0db8 907 size = *n;
cyberjoey 11:94a7379c0db8 908
cyberjoey 11:94a7379c0db8 909 c = fgetc(stream);
cyberjoey 11:94a7379c0db8 910 if (c == EOF) {
cyberjoey 11:94a7379c0db8 911 return -1;
cyberjoey 11:94a7379c0db8 912 }
cyberjoey 11:94a7379c0db8 913 if (bufptr == NULL) {
cyberjoey 11:94a7379c0db8 914 bufptr = (char *)malloc(128);
cyberjoey 11:94a7379c0db8 915 if (bufptr == NULL) {
cyberjoey 11:94a7379c0db8 916 return -1;
cyberjoey 11:94a7379c0db8 917 }
cyberjoey 11:94a7379c0db8 918 size = 128;
cyberjoey 11:94a7379c0db8 919 }
cyberjoey 11:94a7379c0db8 920 p = bufptr;
cyberjoey 11:94a7379c0db8 921 while(c != EOF) {
cyberjoey 11:94a7379c0db8 922 if ((p - bufptr) > (size - 1)) {
cyberjoey 11:94a7379c0db8 923 size = size + 128;
cyberjoey 11:94a7379c0db8 924 bufptr = (char *)realloc(bufptr, size);
cyberjoey 11:94a7379c0db8 925 if (bufptr == NULL) {
cyberjoey 11:94a7379c0db8 926 return -1;
cyberjoey 11:94a7379c0db8 927 }
cyberjoey 11:94a7379c0db8 928 }
cyberjoey 11:94a7379c0db8 929 *p++ = c;
cyberjoey 11:94a7379c0db8 930 if (c == '\n') {
cyberjoey 11:94a7379c0db8 931 break;
cyberjoey 11:94a7379c0db8 932 }
cyberjoey 11:94a7379c0db8 933 c = fgetc(stream);
cyberjoey 11:94a7379c0db8 934 }
cyberjoey 11:94a7379c0db8 935
cyberjoey 11:94a7379c0db8 936 *p++ = '\0';
cyberjoey 11:94a7379c0db8 937 *lineptr = bufptr;
cyberjoey 11:94a7379c0db8 938 *n = size;
cyberjoey 11:94a7379c0db8 939
cyberjoey 11:94a7379c0db8 940 return p - bufptr - 1;
cyberjoey 11:94a7379c0db8 941 }
cyberjoey 11:94a7379c0db8 942
cyberjoey 11:94a7379c0db8 943 //returns true if settings file exists and is in the proper format
cyberjoey 11:94a7379c0db8 944 bool apply_settings_file(bool (&logged_devices)[MAX_DEVICES], int& interval)
cyberjoey 11:94a7379c0db8 945 {
cyberjoey 11:94a7379c0db8 946 //int log_interval = 10;
cyberjoey 11:94a7379c0db8 947 //bool devices[MAX_DEVICES];
cyberjoey 11:94a7379c0db8 948
cyberjoey 11:94a7379c0db8 949 char * line = NULL;
cyberjoey 11:94a7379c0db8 950 int len = 0;
cyberjoey 11:94a7379c0db8 951 int line_number = 0;
cyberjoey 11:94a7379c0db8 952
cyberjoey 11:94a7379c0db8 953
cyberjoey 11:94a7379c0db8 954 FILE *fp = fopen("/sd/settings.txt", "r");
cyberjoey 11:94a7379c0db8 955 if (fp != NULL)
cyberjoey 11:94a7379c0db8 956 {
cyberjoey 11:94a7379c0db8 957
cyberjoey 11:94a7379c0db8 958 //initialize devices to all false;
cyberjoey 11:94a7379c0db8 959 for(int i = 0; i < MAX_DEVICES; i++)
cyberjoey 11:94a7379c0db8 960 {
cyberjoey 11:94a7379c0db8 961 logged_devices[i] = false;
cyberjoey 11:94a7379c0db8 962 }
cyberjoey 11:94a7379c0db8 963
cyberjoey 11:94a7379c0db8 964
cyberjoey 11:94a7379c0db8 965 // Read contents from file
cyberjoey 11:94a7379c0db8 966 while ((getline(&line, &len, fp)) != -1)
cyberjoey 11:94a7379c0db8 967 {
cyberjoey 11:94a7379c0db8 968 line_number++;
cyberjoey 11:94a7379c0db8 969
cyberjoey 11:94a7379c0db8 970 char i = 0;
cyberjoey 11:94a7379c0db8 971 char c = line[i];
cyberjoey 11:94a7379c0db8 972 while(c != '\0')
cyberjoey 11:94a7379c0db8 973 {
cyberjoey 11:94a7379c0db8 974 int number;
cyberjoey 11:94a7379c0db8 975 int n;
cyberjoey 11:94a7379c0db8 976 sscanf((line+i), "%d%n", &number, &n);
cyberjoey 11:94a7379c0db8 977 if(isdigit(c))
cyberjoey 11:94a7379c0db8 978 {
cyberjoey 11:94a7379c0db8 979 if(line_number == 1)
cyberjoey 11:94a7379c0db8 980 {
cyberjoey 11:94a7379c0db8 981 interval = number;
cyberjoey 11:94a7379c0db8 982 }
cyberjoey 11:94a7379c0db8 983 else if(line_number == 2)
cyberjoey 11:94a7379c0db8 984 {
cyberjoey 11:94a7379c0db8 985 logged_devices[number] = true;
cyberjoey 11:94a7379c0db8 986 }
cyberjoey 11:94a7379c0db8 987 if(n > 1)
cyberjoey 11:94a7379c0db8 988 i = i + (n - 1);
cyberjoey 11:94a7379c0db8 989 }
cyberjoey 11:94a7379c0db8 990 i++;
cyberjoey 11:94a7379c0db8 991 c = line[i];
cyberjoey 11:94a7379c0db8 992 }
cyberjoey 11:94a7379c0db8 993 }
cyberjoey 11:94a7379c0db8 994
cyberjoey 11:94a7379c0db8 995 fclose(fp);
cyberjoey 11:94a7379c0db8 996 }
cyberjoey 11:94a7379c0db8 997 else
cyberjoey 11:94a7379c0db8 998 {
cyberjoey 11:94a7379c0db8 999 return false;
cyberjoey 11:94a7379c0db8 1000 }
cyberjoey 11:94a7379c0db8 1001
cyberjoey 11:94a7379c0db8 1002 return true;
cyberjoey 11:94a7379c0db8 1003
cyberjoey 11:94a7379c0db8 1004 }
cyberjoey 11:94a7379c0db8 1005
cyberjoey 11:94a7379c0db8 1006
cyberjoey 11:94a7379c0db8 1007
cyberjoey 10:148da21c297e 1008
cyberjoey 9:36ba3626aab7 1009 //******************************************************************************
cyberjoey 9:36ba3626aab7 1010 // main()
cyberjoey 9:36ba3626aab7 1011 //******************************************************************************
cyberjoey 9:36ba3626aab7 1012
cyberjoey 9:36ba3626aab7 1013
switches 0:60a522ae2e35 1014 int main()
switches 0:60a522ae2e35 1015 {
cyberjoey 9:36ba3626aab7 1016
cyberjoey 9:36ba3626aab7 1017 char data[130];
cyberjoey 9:36ba3626aab7 1018 int device_count = 0; // number of OW devices found by search_rom()
cyberjoey 9:36ba3626aab7 1019 int i;
cyberjoey 9:36ba3626aab7 1020 int j;
cyberjoey 9:36ba3626aab7 1021 int k;
cyberjoey 9:36ba3626aab7 1022
cyberjoey 9:36ba3626aab7 1023
cyberjoey 9:36ba3626aab7 1024 char device_id[ID_LENGTH]; //8 byte rom id of current slected device
cyberjoey 9:36ba3626aab7 1025 char rom_id_list[MAX_DEVICES][ID_LENGTH]; //List of rom id for each device on OW bus
cyberjoey 9:36ba3626aab7 1026
cyberjoey 9:36ba3626aab7 1027 double T[MAX_DEVICES];
cyberjoey 9:36ba3626aab7 1028
cyberjoey 10:148da21c297e 1029 bool device_logged[MAX_DEVICES];
cyberjoey 11:94a7379c0db8 1030 //initialize device_logged to all false;
cyberjoey 11:94a7379c0db8 1031 for(int i = 0; i < MAX_DEVICES; i++)
cyberjoey 11:94a7379c0db8 1032 {
cyberjoey 11:94a7379c0db8 1033 device_logged[i] = false;
cyberjoey 11:94a7379c0db8 1034 }
cyberjoey 10:148da21c297e 1035
cyberjoey 9:36ba3626aab7 1036 // i/o variables
cyberjoey 9:36ba3626aab7 1037 char rx_buff[128]; // comport input buffer
cyberjoey 9:36ba3626aab7 1038 int rx_index; // rx_buffer pointer
cyberjoey 9:36ba3626aab7 1039 char c; // command type character
cyberjoey 9:36ba3626aab7 1040 int n; // argument count
cyberjoey 9:36ba3626aab7 1041 int arg1; // argumnet 1
cyberjoey 9:36ba3626aab7 1042 int arg2; // argument 2
cyberjoey 9:36ba3626aab7 1043 int device; // device argument
cyberjoey 9:36ba3626aab7 1044 int num_bytes;
cyberjoey 9:36ba3626aab7 1045
cyberjoey 9:36ba3626aab7 1046 int time_count;
cyberjoey 9:36ba3626aab7 1047 int log_interval = PERIOD;
cyberjoey 9:36ba3626aab7 1048 int time_to_sample;
cyberjoey 9:36ba3626aab7 1049
cyberjoey 11:94a7379c0db8 1050 apply_settings_file(device_logged, log_interval);
cyberjoey 11:94a7379c0db8 1051
cyberjoey 9:36ba3626aab7 1052 //************* init ticker timer callbacks ****************
cyberjoey 12:aa9fff0aec91 1053 timer_1.attach(&LED_blink_callback,0.5); //start ticker, once per sec.
cyberjoey 9:36ba3626aab7 1054
cyberjoey 9:36ba3626aab7 1055
cyberjoey 12:aa9fff0aec91 1056 i2c.frequency(400000); //set I2C clock to 400kHz
cyberjoey 9:36ba3626aab7 1057
cyberjoey 9:36ba3626aab7 1058 //wait(1); //wait 1 sec for USB serial port to init.
cyberjoey 9:36ba3626aab7 1059
cyberjoey 9:36ba3626aab7 1060 //db.printf("--- OT07 - Base Logger Firmware uisng DS2484 bridge V0.2 ---\r\ndaplink serial port\r\n");
cyberjoey 9:36ba3626aab7 1061 //pc.printf("--- OT07 - Base Logger Firmware uisng DS2484 bridge V0.2 ---\r\nmicro USB serial port\r\n");
cyberjoey 9:36ba3626aab7 1062
cyberjoey 9:36ba3626aab7 1063 rLED = LED_OFF;
switches 6:96d8d823e292 1064 gLED = LED_ON;
cyberjoey 9:36ba3626aab7 1065 bLED = LED_ON;
cyberjoey 9:36ba3626aab7 1066
cyberjoey 9:36ba3626aab7 1067
cyberjoey 9:36ba3626aab7 1068 // reset DS2484
cyberjoey 9:36ba3626aab7 1069 data[0] = 0xE1;
cyberjoey 9:36ba3626aab7 1070 data[1] = 0xF0;
cyberjoey 9:36ba3626aab7 1071 i2c.write(DS2484_ADD,data,1,1);
cyberjoey 9:36ba3626aab7 1072 i2c.read(DS2484_ADD,data,1);
cyberjoey 9:36ba3626aab7 1073
cyberjoey 9:36ba3626aab7 1074 //db.printf("DS2484 Reset --> status[%02X]\r\n",data[0]);
cyberjoey 9:36ba3626aab7 1075
cyberjoey 9:36ba3626aab7 1076 // ****************** search for all OW devices on bus *****************
cyberjoey 9:36ba3626aab7 1077
cyberjoey 9:36ba3626aab7 1078 device_count = search_rom(rom_id_list);
cyberjoey 10:148da21c297e 1079
cyberjoey 9:36ba3626aab7 1080
cyberjoey 9:36ba3626aab7 1081 // print out rom codes found
cyberjoey 9:36ba3626aab7 1082 /*pc.printf("\r\nsearch rom\r\n");
cyberjoey 9:36ba3626aab7 1083 for(j=0;j<device_count;j++){
cyberjoey 9:36ba3626aab7 1084 //pc.printf("device[%02X] rom id[ ",j);
cyberjoey 9:36ba3626aab7 1085 for(i=7;i>=0;i--){
cyberjoey 9:36ba3626aab7 1086 pc.printf("%02X",rom_id_list[j][i]);
cyberjoey 9:36ba3626aab7 1087 }
cyberjoey 9:36ba3626aab7 1088 pc.printf("]\r\n");
cyberjoey 9:36ba3626aab7 1089 }
cyberjoey 9:36ba3626aab7 1090 pc.printf("\r\n");*/
cyberjoey 9:36ba3626aab7 1091
cyberjoey 9:36ba3626aab7 1092 for(j=0;j<device_count;j++){
cyberjoey 9:36ba3626aab7 1093 for(k=0;k<8;k++){
cyberjoey 9:36ba3626aab7 1094 device_id[k] = rom_id_list[j][k]; // get device_id from rom_id_list
cyberjoey 9:36ba3626aab7 1095 }
cyberjoey 9:36ba3626aab7 1096 set_test_mode(device_id);
cyberjoey 9:36ba3626aab7 1097 //db.printf("device[%2X] in test mode\r\n",j);
cyberjoey 9:36ba3626aab7 1098 }
cyberjoey 9:36ba3626aab7 1099
cyberjoey 9:36ba3626aab7 1100
cyberjoey 9:36ba3626aab7 1101 rx_index = 0; //character buffer index for input from PC
cyberjoey 9:36ba3626aab7 1102
cyberjoey 9:36ba3626aab7 1103 button.fall(&btn_pressed);
cyberjoey 11:94a7379c0db8 1104 SDInsert.fall(&sd_insert);
cyberjoey 11:94a7379c0db8 1105
cyberjoey 11:94a7379c0db8 1106 sd.disk_initialize(); //initialize sd card
cyberjoey 9:36ba3626aab7 1107
cyberjoey 9:36ba3626aab7 1108 //db.printf("start Main loop\r\n");
cyberjoey 9:36ba3626aab7 1109 //db.printf("tf[%d]\r\n",tick_flag);
cyberjoey 9:36ba3626aab7 1110 while(1) { // start main loop, take data if logging, check for input, repeat
cyberjoey 9:36ba3626aab7 1111
cyberjoey 11:94a7379c0db8 1112 if(sd_insert_flag == true)
cyberjoey 11:94a7379c0db8 1113 {
cyberjoey 11:94a7379c0db8 1114 sd.disk_initialize();
cyberjoey 11:94a7379c0db8 1115 sd_insert_flag = false;
cyberjoey 11:94a7379c0db8 1116 }
cyberjoey 11:94a7379c0db8 1117
cyberjoey 9:36ba3626aab7 1118 if(button_flag == true)
cyberjoey 9:36ba3626aab7 1119 {
cyberjoey 9:36ba3626aab7 1120 if(log_flag == false){ //start logging
cyberjoey 9:36ba3626aab7 1121
cyberjoey 9:36ba3626aab7 1122 if(SDDetect)//if SD card not detected
cyberjoey 9:36ba3626aab7 1123 {
cyberjoey 9:36ba3626aab7 1124 error_flag = true;
cyberjoey 9:36ba3626aab7 1125 error_ticks = 6;
cyberjoey 9:36ba3626aab7 1126 log_flag = false;
cyberjoey 9:36ba3626aab7 1127 }
cyberjoey 9:36ba3626aab7 1128 else
cyberjoey 9:36ba3626aab7 1129 {
cyberjoey 11:94a7379c0db8 1130 apply_settings_file(device_logged, log_interval);
cyberjoey 11:94a7379c0db8 1131
cyberjoey 10:148da21c297e 1132 FILE *fp = fopen(log_file, "a");
cyberjoey 9:36ba3626aab7 1133 if (fp != NULL)
cyberjoey 9:36ba3626aab7 1134 {
cyberjoey 9:36ba3626aab7 1135 fprintf(fp, "Time(s)");
cyberjoey 9:36ba3626aab7 1136
cyberjoey 9:36ba3626aab7 1137 for(j=0;j<device_count;j++)
cyberjoey 9:36ba3626aab7 1138 {
cyberjoey 11:94a7379c0db8 1139 if(device_logged[j])
cyberjoey 11:94a7379c0db8 1140 fprintf(fp,", Device %d Temperature (C)",j);
cyberjoey 9:36ba3626aab7 1141 }
cyberjoey 9:36ba3626aab7 1142 fprintf(fp,"\r\n");
cyberjoey 9:36ba3626aab7 1143
cyberjoey 9:36ba3626aab7 1144 fclose(fp);
cyberjoey 9:36ba3626aab7 1145 }
cyberjoey 9:36ba3626aab7 1146
cyberjoey 9:36ba3626aab7 1147 time_count = 0;
cyberjoey 9:36ba3626aab7 1148
cyberjoey 9:36ba3626aab7 1149 time_to_sample = 0; // force sample at time = 0;
cyberjoey 9:36ba3626aab7 1150 tick_flag = true; // force sample at time = 0;
cyberjoey 9:36ba3626aab7 1151 log_flag = true;
cyberjoey 9:36ba3626aab7 1152 }
cyberjoey 9:36ba3626aab7 1153 }else{
cyberjoey 9:36ba3626aab7 1154 //pc.printf("<stop logging>\r\n");
cyberjoey 9:36ba3626aab7 1155 log_flag = false;
cyberjoey 9:36ba3626aab7 1156 }
cyberjoey 9:36ba3626aab7 1157 button_flag = false;
cyberjoey 9:36ba3626aab7 1158 }
switches 1:90313362ec11 1159
cyberjoey 9:36ba3626aab7 1160 while(tick_flag == false){ //check for input while waiting for next tick
cyberjoey 9:36ba3626aab7 1161
cyberjoey 9:36ba3626aab7 1162 // ----------------------------------------------------------------------------
cyberjoey 9:36ba3626aab7 1163 // test for charater input for USB com port
cyberjoey 9:36ba3626aab7 1164 // ----------------------------------------------------------------------------
cyberjoey 9:36ba3626aab7 1165
cyberjoey 9:36ba3626aab7 1166 //test if PC sent some charaters
cyberjoey 9:36ba3626aab7 1167 while(pc.readable()){ //characters in buffer, get them
cyberjoey 9:36ba3626aab7 1168 rx_buff[rx_index] = pc.getc();
cyberjoey 9:36ba3626aab7 1169 //pc.putc(rx_buff[rx_index]); //echo character
cyberjoey 9:36ba3626aab7 1170 //pc.printf("<[%02x] %c i[%d]>",rx_buff[i],rx_buff[i],i); //echo charater
cyberjoey 9:36ba3626aab7 1171
cyberjoey 9:36ba3626aab7 1172
cyberjoey 9:36ba3626aab7 1173 if(rx_buff[rx_index] == CR){
cyberjoey 9:36ba3626aab7 1174 //db.printf("\r\n");
cyberjoey 12:aa9fff0aec91 1175 //pc.printf("\r\n");
cyberjoey 9:36ba3626aab7 1176 rx_buff[++rx_index] = 0;
cyberjoey 9:36ba3626aab7 1177 //db.printf("%s\r\n",rx_buff);
cyberjoey 9:36ba3626aab7 1178 //pc.printf("%s\r\n",rx_buff);
cyberjoey 9:36ba3626aab7 1179 rx_index = -1; // because i++ at end of while give i=0 on next loop
cyberjoey 9:36ba3626aab7 1180 device = 0;
cyberjoey 9:36ba3626aab7 1181 arg1 = 0;
cyberjoey 9:36ba3626aab7 1182 arg2 = 0;
cyberjoey 9:36ba3626aab7 1183
cyberjoey 9:36ba3626aab7 1184 n = sscanf(rx_buff, " %c %d %x %x", &c, & device, &arg1, &arg2);
cyberjoey 9:36ba3626aab7 1185
cyberjoey 9:36ba3626aab7 1186 //db.printf("c[%c] d[%d] a1[%x] a2[%x] n[%d]\r\n",c,device,arg1,arg2,n); //echo values read in
cyberjoey 9:36ba3626aab7 1187 //process input
cyberjoey 9:36ba3626aab7 1188 if(n > 0){//got input so process it
cyberjoey 9:36ba3626aab7 1189 switch(c){
cyberjoey 9:36ba3626aab7 1190 case 'a':
cyberjoey 9:36ba3626aab7 1191 case 'A': // alarm search
cyberjoey 9:36ba3626aab7 1192 // ****************** search for all OW devices with alarm triggered on bus *****************
cyberjoey 9:36ba3626aab7 1193
cyberjoey 9:36ba3626aab7 1194 device_count = alarm_search(rom_id_list);
cyberjoey 9:36ba3626aab7 1195
cyberjoey 9:36ba3626aab7 1196 pc.printf("%d devices:\r\n", device_count);
cyberjoey 9:36ba3626aab7 1197 for(j=0;j<device_count;j++){
cyberjoey 9:36ba3626aab7 1198 pc.printf("device[%02X] rom id[",j);
cyberjoey 9:36ba3626aab7 1199 for(i=7;i>=0;i--){
cyberjoey 9:36ba3626aab7 1200 pc.printf("%02X",rom_id_list[j][i]);
cyberjoey 9:36ba3626aab7 1201 }
cyberjoey 9:36ba3626aab7 1202 pc.printf("]\r\n");
cyberjoey 9:36ba3626aab7 1203 }
cyberjoey 9:36ba3626aab7 1204 break;
cyberjoey 11:94a7379c0db8 1205 case 'c':
cyberjoey 11:94a7379c0db8 1206 case 'C':
cyberjoey 11:94a7379c0db8 1207 if(!SDDetect)
cyberjoey 11:94a7379c0db8 1208 pc.printf("y\r\n");
cyberjoey 11:94a7379c0db8 1209 else
cyberjoey 11:94a7379c0db8 1210 pc.printf("n\r\n");
cyberjoey 11:94a7379c0db8 1211 break;
cyberjoey 10:148da21c297e 1212 case 'd':
cyberjoey 10:148da21c297e 1213 case 'D':
cyberjoey 10:148da21c297e 1214 if(n==1) // if no device number is given
cyberjoey 10:148da21c297e 1215 {
cyberjoey 10:148da21c297e 1216 //clear device_logged array
cyberjoey 10:148da21c297e 1217 for(int i = 0; i < MAX_DEVICES; i++)
cyberjoey 10:148da21c297e 1218 {
cyberjoey 10:148da21c297e 1219 device_logged[i] = false;
cyberjoey 10:148da21c297e 1220 }
cyberjoey 10:148da21c297e 1221
cyberjoey 10:148da21c297e 1222 write_settings_file(log_interval, device_logged);
cyberjoey 10:148da21c297e 1223 }
cyberjoey 10:148da21c297e 1224 if(n == 2)
cyberjoey 10:148da21c297e 1225 {
cyberjoey 10:148da21c297e 1226 device_logged[device] = true;
cyberjoey 10:148da21c297e 1227 write_settings_file(log_interval, device_logged);
cyberjoey 10:148da21c297e 1228 }
cyberjoey 10:148da21c297e 1229 break;
cyberjoey 9:36ba3626aab7 1230 case 'f':
cyberjoey 9:36ba3626aab7 1231 case 'F': //f is for "flash" for microSD
cyberjoey 12:aa9fff0aec91 1232 if(!SDDetect)
cyberjoey 9:36ba3626aab7 1233 pc.printf("y\r\n");
cyberjoey 9:36ba3626aab7 1234 else
cyberjoey 12:aa9fff0aec91 1235 pc.printf("n\r\n");
cyberjoey 12:aa9fff0aec91 1236 /*apply_settings_file(device_logged, log_interval);
cyberjoey 11:94a7379c0db8 1237 pc.printf("Interval: %d\r\n", log_interval);
cyberjoey 11:94a7379c0db8 1238 bool no_devices = true;
cyberjoey 11:94a7379c0db8 1239 for(i = 0; i < MAX_DEVICES; i ++)
cyberjoey 11:94a7379c0db8 1240 {
cyberjoey 11:94a7379c0db8 1241 if(device_logged[i])
cyberjoey 11:94a7379c0db8 1242 {
cyberjoey 11:94a7379c0db8 1243 pc.printf("Device %d is being logged.\r\n", i);
cyberjoey 11:94a7379c0db8 1244 no_devices = false;
cyberjoey 11:94a7379c0db8 1245 }
cyberjoey 11:94a7379c0db8 1246
cyberjoey 11:94a7379c0db8 1247 }
cyberjoey 11:94a7379c0db8 1248 if(no_devices)
cyberjoey 12:aa9fff0aec91 1249 pc.printf("No devices being logged.\r\n", i);*/
cyberjoey 9:36ba3626aab7 1250 break;
cyberjoey 10:148da21c297e 1251 case 'g':
cyberjoey 10:148da21c297e 1252 case 'G':
cyberjoey 10:148da21c297e 1253 //0 means get config, 1 means get log
cyberjoey 10:148da21c297e 1254 if(n == 2)
cyberjoey 10:148da21c297e 1255 {
cyberjoey 10:148da21c297e 1256 bool fileExists = false;
cyberjoey 10:148da21c297e 1257 if(device == 0)//get config
cyberjoey 10:148da21c297e 1258 {
cyberjoey 10:148da21c297e 1259 fileExists = print_settings_file();
cyberjoey 10:148da21c297e 1260 }
cyberjoey 10:148da21c297e 1261 if(device == 1)//get log
cyberjoey 10:148da21c297e 1262 {
cyberjoey 10:148da21c297e 1263 fileExists = print_log_file();
cyberjoey 10:148da21c297e 1264 }
cyberjoey 10:148da21c297e 1265 if(!fileExists)
cyberjoey 10:148da21c297e 1266 {
cyberjoey 10:148da21c297e 1267 pc.printf("no_file\r\n");
cyberjoey 10:148da21c297e 1268 }
cyberjoey 10:148da21c297e 1269 }
cyberjoey 10:148da21c297e 1270 break;
cyberjoey 9:36ba3626aab7 1271 case 'i':
cyberjoey 9:36ba3626aab7 1272 case 'I': //Set Logging sample intreval in seconds
cyberjoey 9:36ba3626aab7 1273
cyberjoey 9:36ba3626aab7 1274 log_interval = device;
cyberjoey 9:36ba3626aab7 1275 if(log_interval < 1)log_interval = 1;
cyberjoey 10:148da21c297e 1276 if(log_interval > 60)log_interval = 60;
cyberjoey 10:148da21c297e 1277 write_settings_file(log_interval, device_logged);
cyberjoey 9:36ba3626aab7 1278 break;
cyberjoey 9:36ba3626aab7 1279 case 'l':
cyberjoey 9:36ba3626aab7 1280 case 'L': // Toggle logging
cyberjoey 9:36ba3626aab7 1281
cyberjoey 9:36ba3626aab7 1282 if(log_flag == false){ //start logging
cyberjoey 9:36ba3626aab7 1283 if(SDDetect)//if SD card not detected
cyberjoey 9:36ba3626aab7 1284 {
cyberjoey 9:36ba3626aab7 1285 error_flag = true;
cyberjoey 9:36ba3626aab7 1286 error_ticks = 6;
cyberjoey 9:36ba3626aab7 1287 log_flag = false;
cyberjoey 9:36ba3626aab7 1288 }
cyberjoey 9:36ba3626aab7 1289 else
cyberjoey 9:36ba3626aab7 1290 {
cyberjoey 10:148da21c297e 1291 FILE *fp = fopen(log_file, "a");
cyberjoey 9:36ba3626aab7 1292 if (fp != NULL)
cyberjoey 9:36ba3626aab7 1293 {
cyberjoey 9:36ba3626aab7 1294 fprintf(fp, "Time(s)");
cyberjoey 9:36ba3626aab7 1295
cyberjoey 9:36ba3626aab7 1296 for(j=0;j<device_count;j++)
cyberjoey 9:36ba3626aab7 1297 {
cyberjoey 9:36ba3626aab7 1298 fprintf(fp,", Device %d Temperature (C)",j);
cyberjoey 9:36ba3626aab7 1299 }
cyberjoey 9:36ba3626aab7 1300 fprintf(fp,"\r\n");
cyberjoey 9:36ba3626aab7 1301
cyberjoey 9:36ba3626aab7 1302 fclose(fp);
cyberjoey 9:36ba3626aab7 1303 }
cyberjoey 9:36ba3626aab7 1304
cyberjoey 9:36ba3626aab7 1305 time_count = 0;
cyberjoey 9:36ba3626aab7 1306
cyberjoey 9:36ba3626aab7 1307 time_to_sample = 0; // force sample at time = 0;
cyberjoey 9:36ba3626aab7 1308 tick_flag = true; // force sample at time = 0;
cyberjoey 9:36ba3626aab7 1309 log_flag = true;
cyberjoey 9:36ba3626aab7 1310 }
cyberjoey 9:36ba3626aab7 1311 }else{
cyberjoey 9:36ba3626aab7 1312 //pc.printf("<stop logging>\r\n");
cyberjoey 9:36ba3626aab7 1313 log_flag = false;
cyberjoey 9:36ba3626aab7 1314 }
cyberjoey 9:36ba3626aab7 1315 break;
cyberjoey 9:36ba3626aab7 1316 case 'P':
cyberjoey 9:36ba3626aab7 1317 case 'p': // power down One Wire buss
cyberjoey 9:36ba3626aab7 1318 if(n == 2){
cyberjoey 9:36ba3626aab7 1319 if (device == 0){ // power down mode ON.
cyberjoey 9:36ba3626aab7 1320 data[0] = WDC; // 0xD2 Write Device Config
cyberjoey 9:36ba3626aab7 1321 data[1] = 0xD2; // 1101 0010 set 1WS = 0, SPU = 0, PDN = 1, APU = 0
cyberjoey 9:36ba3626aab7 1322 i2c.write(DS2484_ADD,data,2,0);
cyberjoey 9:36ba3626aab7 1323 pc.printf("<Power down DQ>\r\n");
cyberjoey 9:36ba3626aab7 1324 }else{ // power down mode OFF
cyberjoey 9:36ba3626aab7 1325 data[0] = WDC; // 0xD2 Write Device Config
cyberjoey 9:36ba3626aab7 1326 data[1] = 0xE1; // 1110 0001 set 1WS = 0, SPU = 0, PDN = 0, APU = 1
cyberjoey 9:36ba3626aab7 1327 i2c.write(DS2484_ADD,data,2,0);
cyberjoey 9:36ba3626aab7 1328 pc.printf("<Power up DQ>\r\n");
cyberjoey 9:36ba3626aab7 1329 }
cyberjoey 9:36ba3626aab7 1330 }
cyberjoey 9:36ba3626aab7 1331 break;
cyberjoey 9:36ba3626aab7 1332 case 'r':
cyberjoey 9:36ba3626aab7 1333 case 'R': //read register "r device radd.start radd.end"
cyberjoey 9:36ba3626aab7 1334 for(k=0;k<8;k++){
cyberjoey 9:36ba3626aab7 1335 device_id[k] = rom_id_list[device][k]; // get device_id from rom_id_list
cyberjoey 9:36ba3626aab7 1336 }
cyberjoey 9:36ba3626aab7 1337 if(n==3){ //read single register from selected device
cyberjoey 9:36ba3626aab7 1338 read_OW_register(device_id,arg1,1,data);
cyberjoey 9:36ba3626aab7 1339 pc.printf("device[%02X] add[%02X] data[%02X] crc[%02X %02X]\r\n",device,arg1,data[0],data[1],data[2]);
cyberjoey 9:36ba3626aab7 1340 }
cyberjoey 9:36ba3626aab7 1341 if(n==4){ //read a range of regesters from selected device
cyberjoey 9:36ba3626aab7 1342 num_bytes = arg2-arg1 + 1; // calculate number of bytes to read
cyberjoey 9:36ba3626aab7 1343 if (num_bytes < 1) num_bytes = 1; // if arg2 <= arg 1 just read arg1 address.
cyberjoey 9:36ba3626aab7 1344 read_OW_register(device_id,arg1,num_bytes,data);
cyberjoey 9:36ba3626aab7 1345 for(i=0;i<num_bytes;i++){
cyberjoey 9:36ba3626aab7 1346 pc.printf("\r\ndevice[%02X] add[%02X] data[%02X]",device,arg1+i,data[i]);
cyberjoey 9:36ba3626aab7 1347 }
cyberjoey 9:36ba3626aab7 1348 pc.printf(" crc[%02X %02X]\r\n",data[i],data[i+1]);
cyberjoey 9:36ba3626aab7 1349 }
cyberjoey 9:36ba3626aab7 1350 break;
cyberjoey 9:36ba3626aab7 1351
cyberjoey 9:36ba3626aab7 1352 case 's':
cyberjoey 9:36ba3626aab7 1353 case 'S': // search rom
cyberjoey 9:36ba3626aab7 1354 // ****************** search for all OW devices on bus *****************
cyberjoey 9:36ba3626aab7 1355
cyberjoey 9:36ba3626aab7 1356 device_count = search_rom(rom_id_list);
cyberjoey 9:36ba3626aab7 1357
cyberjoey 9:36ba3626aab7 1358 // print out rom codes found
cyberjoey 9:36ba3626aab7 1359 //pc.printf("\r\nsearch rom\r\n");
cyberjoey 9:36ba3626aab7 1360 pc.printf("%d devices:\r\n", device_count);
cyberjoey 9:36ba3626aab7 1361 for(j=0;j<device_count;j++){
cyberjoey 9:36ba3626aab7 1362 pc.printf("device[%02X] rom id[",j);
cyberjoey 9:36ba3626aab7 1363 for(i=7;i>=0;i--){
cyberjoey 9:36ba3626aab7 1364 pc.printf("%02X",rom_id_list[j][i]);
cyberjoey 9:36ba3626aab7 1365 }
cyberjoey 9:36ba3626aab7 1366 pc.printf("]\r\n");
cyberjoey 9:36ba3626aab7 1367 }
cyberjoey 9:36ba3626aab7 1368 //pc.printf("\r\n");
cyberjoey 9:36ba3626aab7 1369 break;
cyberjoey 9:36ba3626aab7 1370
cyberjoey 9:36ba3626aab7 1371 case 'T':
cyberjoey 9:36ba3626aab7 1372 case 't':
cyberjoey 9:36ba3626aab7 1373 if(n == 2){//get temperatures from selected device
cyberjoey 9:36ba3626aab7 1374 for(k=0;k<8;k++){
cyberjoey 9:36ba3626aab7 1375 device_id[k] = rom_id_list[device][k]; // get device_id from rom_id_list
cyberjoey 9:36ba3626aab7 1376 }
cyberjoey 9:36ba3626aab7 1377 convert_temperature(device_id); //send OW convert selected device
cyberjoey 9:36ba3626aab7 1378 wait(0.02); //wait 20 ms for convert temperature to complete
cyberjoey 9:36ba3626aab7 1379 T[0] = get_temperature(device_id);
cyberjoey 9:36ba3626aab7 1380 pc.printf("device[%02X] temperature[%.3f]\r\n",device,T[0]);
cyberjoey 9:36ba3626aab7 1381 //pc.printf("\r\n");
cyberjoey 9:36ba3626aab7 1382 }
cyberjoey 9:36ba3626aab7 1383 if(n == 3){ // "t 1 5" get temperature for devices 1 thru 5
cyberjoey 9:36ba3626aab7 1384
cyberjoey 9:36ba3626aab7 1385 convert_temperature(); //send OW convert to all devices
cyberjoey 9:36ba3626aab7 1386 wait(0.02); //wait 750 ms for convert temperature to complete
cyberjoey 9:36ba3626aab7 1387 for(j=device;j<=arg1;j++){
cyberjoey 9:36ba3626aab7 1388 for(k=0;k<8;k++){
cyberjoey 9:36ba3626aab7 1389 device_id[k] = rom_id_list[j][k]; // get device_id from rom_id_list
cyberjoey 9:36ba3626aab7 1390 }
cyberjoey 9:36ba3626aab7 1391 pc.printf("device[%02X] temperature[%.3f]\r\n",j,get_temperature(device_id));
cyberjoey 9:36ba3626aab7 1392 }
cyberjoey 9:36ba3626aab7 1393 //pc.printf("\r\n");
cyberjoey 9:36ba3626aab7 1394 }
cyberjoey 9:36ba3626aab7 1395 break;
cyberjoey 9:36ba3626aab7 1396
cyberjoey 9:36ba3626aab7 1397 case 'w':
cyberjoey 9:36ba3626aab7 1398 case 'W': //write register "w device w.addr data"
cyberjoey 9:36ba3626aab7 1399 for(k=0;k<8;k++){
cyberjoey 9:36ba3626aab7 1400 device_id[k] = rom_id_list[device][k]; // get device_id from rom_id_list
cyberjoey 9:36ba3626aab7 1401 }
cyberjoey 9:36ba3626aab7 1402 data[0] = arg2;
cyberjoey 9:36ba3626aab7 1403 write_OW_register(device_id, arg1, 1, data);
cyberjoey 9:36ba3626aab7 1404
cyberjoey 9:36ba3626aab7 1405 pc.printf("write -- device[%02X] add[%02X] data[%02X] ",device,arg1,arg2);
cyberjoey 9:36ba3626aab7 1406
cyberjoey 9:36ba3626aab7 1407 // get CRC
cyberjoey 9:36ba3626aab7 1408 //OW_read_byte(data,2);
cyberjoey 9:36ba3626aab7 1409 pc.printf("crc[%02X %02X]\r\n",data[0],data[1]);
cyberjoey 9:36ba3626aab7 1410
cyberjoey 9:36ba3626aab7 1411 break;
cyberjoey 9:36ba3626aab7 1412
cyberjoey 9:36ba3626aab7 1413 case 'x':
cyberjoey 9:36ba3626aab7 1414 case 'X': // experimental modes
cyberjoey 9:36ba3626aab7 1415 // ****************** set up ADC enabled in test mode*****************
cyberjoey 9:36ba3626aab7 1416 pc.printf("<set ADC_ENABLED in test mode>\r\n");
cyberjoey 9:36ba3626aab7 1417
cyberjoey 9:36ba3626aab7 1418 for(j=0;j<device_count;j++){
cyberjoey 9:36ba3626aab7 1419 for(k=0;k<8;k++){
cyberjoey 9:36ba3626aab7 1420 device_id[k] = rom_id_list[j][k]; // get device_id from rom_id_list
cyberjoey 9:36ba3626aab7 1421 }
cyberjoey 9:36ba3626aab7 1422 set_test_mode(device_id);
cyberjoey 9:36ba3626aab7 1423 //db.printf("device[%2X] in test mode\r\n",j);
cyberjoey 9:36ba3626aab7 1424 }
cyberjoey 9:36ba3626aab7 1425 break;
cyberjoey 9:36ba3626aab7 1426
cyberjoey 9:36ba3626aab7 1427
cyberjoey 9:36ba3626aab7 1428 }//end switch(c)
cyberjoey 9:36ba3626aab7 1429 }//if(n>0)
cyberjoey 9:36ba3626aab7 1430 }//end if(CR)
cyberjoey 9:36ba3626aab7 1431 if(rx_buff[rx_index] == BS){//backspace received, back up buffer pointer
cyberjoey 9:36ba3626aab7 1432 if(rx_index>0)rx_index--;//remove last char from buffer if not at start.
cyberjoey 9:36ba3626aab7 1433 }else rx_index++;
cyberjoey 9:36ba3626aab7 1434 }//end while(pc.redable())
cyberjoey 9:36ba3626aab7 1435 wait(0.1); // slow down polling
switches 0:60a522ae2e35 1436
cyberjoey 9:36ba3626aab7 1437 }// end (while tick == false)
cyberjoey 9:36ba3626aab7 1438 tick_flag = false; // set to false for next time
cyberjoey 9:36ba3626aab7 1439
cyberjoey 9:36ba3626aab7 1440 // only reached when tick_flag = true otherwise stuck in pc.readable() loop
cyberjoey 9:36ba3626aab7 1441 if(log_flag == true){
cyberjoey 9:36ba3626aab7 1442 //pc.printf("tc{%5d] tts[%5d]\n\r",time_count,time_to_sample);
cyberjoey 9:36ba3626aab7 1443 if(time_count >= time_to_sample){ //take next sample
cyberjoey 9:36ba3626aab7 1444 time_to_sample += log_interval; // calculate time for next sample
cyberjoey 9:36ba3626aab7 1445
cyberjoey 9:36ba3626aab7 1446 // start conversion
cyberjoey 9:36ba3626aab7 1447 convert_temperature();
cyberjoey 9:36ba3626aab7 1448 wait(0.02); //wait 20ms for convert to complete
cyberjoey 9:36ba3626aab7 1449 for(j=0;j<device_count;j++){
cyberjoey 9:36ba3626aab7 1450 for(k=0;k<8;k++){
cyberjoey 9:36ba3626aab7 1451 device_id[k] = rom_id_list[j][k]; // get device_id from rom_id_list
cyberjoey 9:36ba3626aab7 1452 }
cyberjoey 9:36ba3626aab7 1453 T[j] = get_temperature(device_id);
cyberjoey 9:36ba3626aab7 1454 }
cyberjoey 9:36ba3626aab7 1455 /*
cyberjoey 9:36ba3626aab7 1456 // print out time count and temperatures
cyberjoey 9:36ba3626aab7 1457 pc.printf("%5d",time_count);
cyberjoey 9:36ba3626aab7 1458 for(j=0;j<device_count;j++){
cyberjoey 9:36ba3626aab7 1459 pc.printf(", %7.3f",T[j]);
cyberjoey 9:36ba3626aab7 1460 }
cyberjoey 9:36ba3626aab7 1461 pc.printf("\r\n");
cyberjoey 9:36ba3626aab7 1462 */
cyberjoey 10:148da21c297e 1463 FILE *fp = fopen(log_file, "a");
cyberjoey 9:36ba3626aab7 1464 if (fp != NULL)
cyberjoey 9:36ba3626aab7 1465 {
cyberjoey 9:36ba3626aab7 1466 //fprintf(fp, "\n");
cyberjoey 10:148da21c297e 1467 fprintf(fp, "%d",time_count);
cyberjoey 9:36ba3626aab7 1468 for(j=0;j<device_count;j++)
cyberjoey 9:36ba3626aab7 1469 {
cyberjoey 11:94a7379c0db8 1470 if(device_logged[j])
cyberjoey 11:94a7379c0db8 1471 {
cyberjoey 11:94a7379c0db8 1472 fprintf(fp,", %.3f",T[j]);
cyberjoey 11:94a7379c0db8 1473 }
cyberjoey 11:94a7379c0db8 1474
cyberjoey 9:36ba3626aab7 1475 }
cyberjoey 9:36ba3626aab7 1476 fprintf(fp,"\r\n");
cyberjoey 9:36ba3626aab7 1477
cyberjoey 9:36ba3626aab7 1478 fclose(fp);
cyberjoey 9:36ba3626aab7 1479 }
cyberjoey 9:36ba3626aab7 1480 }// end if(time_count >= time_to_sample)
cyberjoey 9:36ba3626aab7 1481 time_count ++; //
cyberjoey 9:36ba3626aab7 1482
cyberjoey 9:36ba3626aab7 1483 }// end if(log_flag)
cyberjoey 9:36ba3626aab7 1484
cyberjoey 9:36ba3626aab7 1485 }//end while(1)
switches 0:60a522ae2e35 1486 }
switches 0:60a522ae2e35 1487