93 lines
4.2 KiB
C
93 lines
4.2 KiB
C
/*
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* utilities.h
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*
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* Created on: 16 sep. 2016
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* Author: Philip
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*/
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/**********************************************************************
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* NAME: utilities.c *
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* AUTHOR: Philip Johansson *
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* PURPOSE: Set up and read from ADC *
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* INFORMATION: *
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* Here we gather usable functions by the whole system *
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* *
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* GLOBAL VARIABLES: *
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* Variable Type Description *
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* -------- ---- ----------- *
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* *
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**********************************************************************/
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#ifndef UTILITIES_H_
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#define UTILITIES_H_
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#include <stdint.h>
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#include "stm32f4xx_it.h"
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#define maxStringSize_CLI 100 //Max sting size used for the messages in the CLI
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#define ABS_FLOAT(x) (((x) < 0)? -(x): (x))
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typedef char typeString[maxStringSize_CLI];
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typedef struct typeStringArr { char val[maxStringSize_CLI]; } typeStringArr;
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/***********************************************************************
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* BRIEF: Calculates the length of a string(char[])
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* INFORMATION: Calculates the number of characters in a char arr
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***********************************************************************/
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uint16_t calculateStringLength (const char * src, int maxSize);
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/***********************************************************************
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* BRIEF: Gives the length of a typestring *
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* INFORMATION: Calculates the number of characters in a typestring. *
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* Essentially it calculates the number of strings in an *
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* string array. *
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***********************************************************************/
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uint32_t calculateTypeStringLength(typeString arr[], int maxSize);
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/***********************************************************************
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* BRIEF: Checks if a string consists of numbers
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* INFORMATION: Given a string of numbers it will check if it is a number
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* by comparing to the ascii table
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***********************************************************************/
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bool isStringNumbers(char * msg);
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/***********************************************************************
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* BRIEF: Parses a string of numbers to int
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* INFORMATION: Parses a string of numbers to a 64-bit integer.
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***********************************************************************/
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uint64_t parseToInt64(char * msg);
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/***********************************************************************
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* BRIEF: Tries to split a string on whitespace
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* INFORMATION: Splits a string on whitespace and places it in dst
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***********************************************************************/
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bool splitStringWhitespace(char * src, typeString dst[], uint16_t stringSize, uint16_t arraySize);
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/***********************************************************************
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* BRIEF: Finds previous whitespace in a string
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* INFORMATION: Given a string and start index it will try to find
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* one whitespace counting downwards.
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***********************************************************************/
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int FindPreviousWhiteSpaceIndex(char * msg, int startIndex);
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/***********************************************************************
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* BRIEF: Sums elements of array until index of second arg *
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* INFORMATION: Returns the sum *
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***********************************************************************/
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uint32_t accumulate(uint32_t list[], int length);
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/***********************************************************************
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* BRIEF: A function that can be called on exceptions *
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* INFORMATION: If an exception happens its easier to find it in an *
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* infinite loop *
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***********************************************************************/
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void Error_Handler(void);
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uint8_t reverse(uint8_t byte);
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int16_t constrain(int16_t value, int16_t min, int16_t max);
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#endif /* UTILITIES_H_ */
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