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JLC test
Dependencies: PinDetect libmDot mbed-rtos mbed
utilities.cpp@2:376af6a70e8a, 2016-01-30 (annotated)
- Committer:
- tmulrooney
- Date:
- Sat Jan 30 17:02:23 2016 +0000
- Revision:
- 2:376af6a70e8a
- Parent:
- 1:96c429800568
using UART 2 - not working
Who changed what in which revision?
User | Revision | Line number | New contents of line |
---|---|---|---|
tmulrooney | 1:96c429800568 | 1 | /* ======================================== |
tmulrooney | 1:96c429800568 | 2 | * Filename: utilities.c |
tmulrooney | 1:96c429800568 | 3 | * |
tmulrooney | 1:96c429800568 | 4 | * Description: functions needed by other files |
tmulrooney | 1:96c429800568 | 5 | * |
tmulrooney | 1:96c429800568 | 6 | * Copyright J-Factor Embedded Technologies 2015 |
tmulrooney | 1:96c429800568 | 7 | * Copyright TJM Embedded Software 2015 |
tmulrooney | 1:96c429800568 | 8 | * All Rights Reserved |
tmulrooney | 1:96c429800568 | 9 | * UNPUBLISHED, LICENSED SOFTWARE. |
tmulrooney | 1:96c429800568 | 10 | * |
tmulrooney | 1:96c429800568 | 11 | * CONFIDENTIAL AND PROPRIETARY INFORMATION |
tmulrooney | 1:96c429800568 | 12 | * WHICH IS THE PROPERTY OF J-Factor Embedded Technologies. |
tmulrooney | 1:96c429800568 | 13 | * |
tmulrooney | 1:96c429800568 | 14 | * ======================================== |
tmulrooney | 1:96c429800568 | 15 | */ |
tmulrooney | 1:96c429800568 | 16 | /** \file |
tmulrooney | 1:96c429800568 | 17 | * \brief functions used by other files. |
tmulrooney | 1:96c429800568 | 18 | */ |
tmulrooney | 1:96c429800568 | 19 | #include <time.h> |
tmulrooney | 1:96c429800568 | 20 | #include "stdio.h" |
tmulrooney | 1:96c429800568 | 21 | #include "common.h" |
tmulrooney | 1:96c429800568 | 22 | |
tmulrooney | 1:96c429800568 | 23 | /** |
tmulrooney | 1:96c429800568 | 24 | * \fn void date(void) |
tmulrooney | 1:96c429800568 | 25 | * |
tmulrooney | 1:96c429800568 | 26 | * \brief gets current time and date. |
tmulrooney | 1:96c429800568 | 27 | * |
tmulrooney | 1:96c429800568 | 28 | * gets date current time and date since last set date command. there is no real time clock in the system so date is relative. |
tmulrooney | 1:96c429800568 | 29 | * \return None<p> |
tmulrooney | 1:96c429800568 | 30 | * |
tmulrooney | 1:96c429800568 | 31 | */ |
tmulrooney | 1:96c429800568 | 32 | void date(void) |
tmulrooney | 1:96c429800568 | 33 | { |
tmulrooney | 1:96c429800568 | 34 | struct tm *epoch_tm = gmtime(&epoch); |
tmulrooney | 1:96c429800568 | 35 | if(epoch_tm != NULL) |
tmulrooney | 1:96c429800568 | 36 | c_time_string = asctime(gmtime(&epoch)); |
tmulrooney | 1:96c429800568 | 37 | else |
tmulrooney | 1:96c429800568 | 38 | c_time_string = "00:00:00"; |
tmulrooney | 1:96c429800568 | 39 | } |
tmulrooney | 1:96c429800568 | 40 | |
tmulrooney | 1:96c429800568 | 41 | |
tmulrooney | 1:96c429800568 | 42 | /** |
tmulrooney | 1:96c429800568 | 43 | * \fn void setDate(char *str) |
tmulrooney | 1:96c429800568 | 44 | * |
tmulrooney | 1:96c429800568 | 45 | * \brief gets current time and date. |
tmulrooney | 1:96c429800568 | 46 | * |
tmulrooney | 1:96c429800568 | 47 | * gets date current time and date since last set date command. there is no real time clock in the system so date is relative. |
tmulrooney | 1:96c429800568 | 48 | * \return None<p> |
tmulrooney | 1:96c429800568 | 49 | * |
tmulrooney | 1:96c429800568 | 50 | */ |
tmulrooney | 1:96c429800568 | 51 | void setDate(char *str) |
tmulrooney | 1:96c429800568 | 52 | { |
tmulrooney | 1:96c429800568 | 53 | struct tm t; |
tmulrooney | 1:96c429800568 | 54 | int day,month,year,hour,minute,second; |
tmulrooney | 1:96c429800568 | 55 | int num; |
tmulrooney | 1:96c429800568 | 56 | time_t tempEpoch; |
tmulrooney | 1:96c429800568 | 57 | |
tmulrooney | 1:96c429800568 | 58 | num = sscanf(str,"%d/%d/%d %d:%d:%d",&month,&day,&year,&hour,&minute,&second); /* get human readable current date */ |
tmulrooney | 1:96c429800568 | 59 | if(num != 6) |
tmulrooney | 1:96c429800568 | 60 | { |
tmulrooney | 1:96c429800568 | 61 | pc.printf("Illegal or missing parameters. expected 6 integers\r\nformat: Month Day Year Hour Minute Second\r\n"); |
tmulrooney | 1:96c429800568 | 62 | return; |
tmulrooney | 1:96c429800568 | 63 | } |
tmulrooney | 1:96c429800568 | 64 | t.tm_year = year-1900; |
tmulrooney | 1:96c429800568 | 65 | t.tm_mon = month - 1; // Month, 0 - jan |
tmulrooney | 1:96c429800568 | 66 | t.tm_mday = day; // Day of the month |
tmulrooney | 1:96c429800568 | 67 | t.tm_hour = hour; |
tmulrooney | 1:96c429800568 | 68 | t.tm_min = minute; |
tmulrooney | 1:96c429800568 | 69 | t.tm_sec = second; |
tmulrooney | 1:96c429800568 | 70 | t.tm_isdst = -1; // Is DST on? 1 = yes, 0 = no, -1 = unknown |
tmulrooney | 1:96c429800568 | 71 | tempEpoch = mktime(&t); |
tmulrooney | 1:96c429800568 | 72 | if ( (month > 12) || (day > 31) || (hour > 23) || (minute > 59) || (second > 59) ) |
tmulrooney | 1:96c429800568 | 73 | { |
tmulrooney | 1:96c429800568 | 74 | pc.printf("Illegal or missing parameters. expected 6 integers\r\nformat: Month/Day/Year Hour:Minute:Second\r\n"); |
tmulrooney | 1:96c429800568 | 75 | return; |
tmulrooney | 1:96c429800568 | 76 | } |
tmulrooney | 1:96c429800568 | 77 | epoch = tempEpoch; |
tmulrooney | 1:96c429800568 | 78 | } |
tmulrooney | 1:96c429800568 | 79 | |
tmulrooney | 1:96c429800568 | 80 | void printVersion() |
tmulrooney | 1:96c429800568 | 81 | { |
tmulrooney | 1:96c429800568 | 82 | // pc.printf("%s Built on: %s %s\r\n\r\n", dot->getId().c_str(),__DATE__,__TIME__); |
tmulrooney | 1:96c429800568 | 83 | pc.printf("\r\nJLC MT Demo: V%d.%02d %s Built on: %s %s\r\n",VERSION_MAJOR,VERSION_MINOR,VERSION_DATE, __DATE__,__TIME__); |
tmulrooney | 1:96c429800568 | 84 | } |
tmulrooney | 1:96c429800568 | 85 | |
tmulrooney | 1:96c429800568 | 86 | uint8 tolower(uint8 c) |
tmulrooney | 1:96c429800568 | 87 | { |
tmulrooney | 1:96c429800568 | 88 | if( (c >= 'A') && (c <= 'Z') ) |
tmulrooney | 1:96c429800568 | 89 | return (c | 0x20); |
tmulrooney | 1:96c429800568 | 90 | else |
tmulrooney | 1:96c429800568 | 91 | return c; |
tmulrooney | 1:96c429800568 | 92 | } |
tmulrooney | 1:96c429800568 | 93 | |
tmulrooney | 1:96c429800568 | 94 | /** |
tmulrooney | 1:96c429800568 | 95 | * \fn float strtofloat (char *str) |
tmulrooney | 1:96c429800568 | 96 | * |
tmulrooney | 1:96c429800568 | 97 | * \brief converts an ASCII string to float. |
tmulrooney | 1:96c429800568 | 98 | * |
tmulrooney | 1:96c429800568 | 99 | * This routine converts a floating point number in the form |
tmulrooney | 1:96c429800568 | 100 | * xx.yy to a floating point number. |
tmulrooney | 1:96c429800568 | 101 | * |
tmulrooney | 1:96c429800568 | 102 | * \param[in] str - pointer to a character string containing the floating point number |
tmulrooney | 1:96c429800568 | 103 | * \return float - converted number<p> |
tmulrooney | 1:96c429800568 | 104 | * |
tmulrooney | 1:96c429800568 | 105 | */ |
tmulrooney | 1:96c429800568 | 106 | float strtofloat (char *str) |
tmulrooney | 1:96c429800568 | 107 | { |
tmulrooney | 1:96c429800568 | 108 | float result = 0.0; |
tmulrooney | 1:96c429800568 | 109 | uint8 intPart[3]; |
tmulrooney | 1:96c429800568 | 110 | uint16 intValue = 0; |
tmulrooney | 1:96c429800568 | 111 | uint8 floatPart[3]; |
tmulrooney | 1:96c429800568 | 112 | float floatValue = 0.0; |
tmulrooney | 1:96c429800568 | 113 | uint8 i; |
tmulrooney | 1:96c429800568 | 114 | char *ptrDecimalPoint = NULL; |
tmulrooney | 1:96c429800568 | 115 | char *ptrStr = NULL; |
tmulrooney | 1:96c429800568 | 116 | char ch; |
tmulrooney | 1:96c429800568 | 117 | uint8 fractionValid = 0; |
tmulrooney | 1:96c429800568 | 118 | uint8 integerValid = 0; |
tmulrooney | 1:96c429800568 | 119 | |
tmulrooney | 1:96c429800568 | 120 | for(i=0;i<sizeof(intPart);i++) /* clear integer digits */ |
tmulrooney | 1:96c429800568 | 121 | intPart[i] = 0; |
tmulrooney | 1:96c429800568 | 122 | for(i=0;i<sizeof(floatPart);i++) /* floating digits */ |
tmulrooney | 1:96c429800568 | 123 | floatPart[i] = 0; |
tmulrooney | 1:96c429800568 | 124 | |
tmulrooney | 1:96c429800568 | 125 | ptrDecimalPoint = strchr(str, '.'); /* find the decimal point if any */ |
tmulrooney | 1:96c429800568 | 126 | if (ptrDecimalPoint != NULL) |
tmulrooney | 1:96c429800568 | 127 | { |
tmulrooney | 1:96c429800568 | 128 | fractionValid = 1; |
tmulrooney | 1:96c429800568 | 129 | if(ptrDecimalPoint != str) /* see if any integer digits */ |
tmulrooney | 1:96c429800568 | 130 | integerValid = 1; |
tmulrooney | 1:96c429800568 | 131 | } |
tmulrooney | 1:96c429800568 | 132 | else |
tmulrooney | 1:96c429800568 | 133 | { |
tmulrooney | 1:96c429800568 | 134 | integerValid = 1; |
tmulrooney | 1:96c429800568 | 135 | ptrDecimalPoint = str + strlen(str); |
tmulrooney | 1:96c429800568 | 136 | } |
tmulrooney | 1:96c429800568 | 137 | |
tmulrooney | 1:96c429800568 | 138 | if(integerValid) /* get and save all integer digits */ |
tmulrooney | 1:96c429800568 | 139 | { |
tmulrooney | 1:96c429800568 | 140 | for(i=0, ptrStr = ptrDecimalPoint;ptrStr != str; i++) |
tmulrooney | 1:96c429800568 | 141 | { |
tmulrooney | 1:96c429800568 | 142 | ptrStr--; |
tmulrooney | 1:96c429800568 | 143 | ch = *ptrStr; |
tmulrooney | 1:96c429800568 | 144 | if( (ch >= '0') && (ch <= '9') ) |
tmulrooney | 1:96c429800568 | 145 | { |
tmulrooney | 1:96c429800568 | 146 | intPart[i] = ch - '0'; |
tmulrooney | 1:96c429800568 | 147 | } |
tmulrooney | 1:96c429800568 | 148 | else |
tmulrooney | 1:96c429800568 | 149 | { |
tmulrooney | 1:96c429800568 | 150 | fractionValid = 0; |
tmulrooney | 1:96c429800568 | 151 | break; |
tmulrooney | 1:96c429800568 | 152 | } |
tmulrooney | 1:96c429800568 | 153 | } |
tmulrooney | 1:96c429800568 | 154 | for(i=0;i<sizeof(intPart);i++) |
tmulrooney | 1:96c429800568 | 155 | intValue += (intPart[i] * power(10,i)); |
tmulrooney | 1:96c429800568 | 156 | } |
tmulrooney | 1:96c429800568 | 157 | |
tmulrooney | 1:96c429800568 | 158 | if(fractionValid) /* get and save all fraction digits */ |
tmulrooney | 1:96c429800568 | 159 | { |
tmulrooney | 1:96c429800568 | 160 | for(i=0, ptrStr = ptrDecimalPoint;ptrStr < str + strlen(str); i++) |
tmulrooney | 1:96c429800568 | 161 | { |
tmulrooney | 1:96c429800568 | 162 | ptrStr++; |
tmulrooney | 1:96c429800568 | 163 | ch = *ptrStr; |
tmulrooney | 1:96c429800568 | 164 | if( (ch >= '0') && (ch <= '9') ) |
tmulrooney | 1:96c429800568 | 165 | { |
tmulrooney | 1:96c429800568 | 166 | floatPart[i] = ch - '0'; |
tmulrooney | 1:96c429800568 | 167 | } |
tmulrooney | 1:96c429800568 | 168 | else |
tmulrooney | 1:96c429800568 | 169 | { |
tmulrooney | 1:96c429800568 | 170 | break; |
tmulrooney | 1:96c429800568 | 171 | } |
tmulrooney | 1:96c429800568 | 172 | } |
tmulrooney | 1:96c429800568 | 173 | for(i=0;i<sizeof(floatPart);i++) |
tmulrooney | 1:96c429800568 | 174 | floatValue += (floatPart[i] * (1.0/power(10,i+1)) ); |
tmulrooney | 1:96c429800568 | 175 | } |
tmulrooney | 1:96c429800568 | 176 | result = intValue + floatValue; |
tmulrooney | 1:96c429800568 | 177 | return result; |
tmulrooney | 1:96c429800568 | 178 | } |
tmulrooney | 1:96c429800568 | 179 | |
tmulrooney | 1:96c429800568 | 180 | /** |
tmulrooney | 1:96c429800568 | 181 | * \fn uint16 power(uint8 num, uint8 pow) |
tmulrooney | 1:96c429800568 | 182 | * |
tmulrooney | 1:96c429800568 | 183 | * \brief takes number(num) to power(pow) |
tmulrooney | 1:96c429800568 | 184 | * |
tmulrooney | 1:96c429800568 | 185 | * This routine takes an 8 bit integer num and |
tmulrooney | 1:96c429800568 | 186 | * raises it ot the power pow. |
tmulrooney | 1:96c429800568 | 187 | * |
tmulrooney | 1:96c429800568 | 188 | * \param[in] num - 8 bit integer number |
tmulrooney | 1:96c429800568 | 189 | * \param[in] pow - 8 bit power to raise num |
tmulrooney | 1:96c429800568 | 190 | * \return uint16 - 16 bit num to the power pow<p> |
tmulrooney | 1:96c429800568 | 191 | * |
tmulrooney | 1:96c429800568 | 192 | */ |
tmulrooney | 1:96c429800568 | 193 | uint16 power(uint8 num, uint8 pow) |
tmulrooney | 1:96c429800568 | 194 | { |
tmulrooney | 1:96c429800568 | 195 | uint8 i; |
tmulrooney | 1:96c429800568 | 196 | uint16 result = 1; |
tmulrooney | 1:96c429800568 | 197 | |
tmulrooney | 1:96c429800568 | 198 | for(i=0;i<pow;i++) |
tmulrooney | 1:96c429800568 | 199 | result = result * num; |
tmulrooney | 1:96c429800568 | 200 | return result; |
tmulrooney | 1:96c429800568 | 201 | } |