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jeremybenn |
/********************* (C) COPYRIGHT 2007 RAISONANCE S.A.S. *******************/
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/**
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*
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* @file Util.c
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* @brief Various utilities for STM32 CircleOS.
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* @author RT
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* @date 07/2007
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*
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**/
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/******************************************************************************/
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/* Includes ------------------------------------------------------------------*/
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#include "circle.h"
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#include "adc.h"
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/// @cond Internal
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/* Private defines -----------------------------------------------------------*/
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#define GPIO_USB_PIN GPIO_Pin_1
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#define GPIOx_USB GPIOA
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#define OsVersion "V 1.7" /*!< CircleOS version string. */
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/* Private typedef -----------------------------------------------------------*/
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enum eSpeed CurrentSpeed;
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/* Private variables ---------------------------------------------------------*/
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RCC_ClocksTypeDef RCC_ClockFreq;
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int dummycounter = 0;
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u8 fTemperatureInFahrenheit = 0; /*!< 1 : Fahrenheit, 0 : Celcius (default). */
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/* Private function prototypes -----------------------------------------------*/
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static void _int2str( char* ptr, s32 X, u16 digit, int flagunsigned, int fillwithzero );
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/* Private functions ---------------------------------------------------------*/
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/*******************************************************************************
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*
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* _int2str
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*
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*******************************************************************************/
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/**
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*
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* Translate a 32 bit word into a string.
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*
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* @param[in,out] ptr A pointer to a string large enough to contain
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* the translated 32 bit word.
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* @param[in] X The 32 bit word to translate.
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* @param[in] digit The amount of digits wanted in the result string.
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* @param[in] flagunsigned Is the input word unsigned?
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* @param[in] fillwithzero Fill with zeros or spaces.
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*
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**/
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/******************************************************************************/
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static void _int2str( char* ptr, s32 X, u16 digit, int flagunsigned, int fillwithzero )
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{
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u8 c;
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u8 fFirst = 0;
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u8 fNeg = 0;
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u32 DIG = 1;
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int i;
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for( i = 1; i < digit; i++ )
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{
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DIG *= 10;
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}
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if( !flagunsigned && ( X < 0 ) )
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{
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fNeg = 1;
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X = -X;
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}
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u32 r = X;
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for( i = 0; i < digit; i++, DIG /= 10 )
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{
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c = (r/DIG);
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r -= (c*DIG);
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if( fillwithzero || fFirst || c || ( i == ( digit - 1 ) ) )
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{
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if( ( fFirst == 0 ) && !flagunsigned )
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{
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*ptr++ = fNeg ? '-' : ' ';
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}
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*ptr++ = c + 0x30;
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fFirst = 1;
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}
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else
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{
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*ptr++ = ' ';
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}
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}
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*ptr++ = 0;
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}
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/* Public functions for CircleOS ---------------------------------------------*/
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/*******************************************************************************
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*
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* delay_unit
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*
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*******************************************************************************/
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/**
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*
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* Called by starting_delay().
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*
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* @note Not in main.c to avoid inlining.
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*
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**/
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/******************************************************************************/
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void delay_unit( void )
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{
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dummycounter++;
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}
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/// @endcond
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/* Public functions ----------------------------------------------------------*/
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/*******************************************************************************
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*
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* UTIL_GetBat
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*
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*******************************************************************************/
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/**
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*
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* Return the batterie tension in mV.
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*
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* @return Batterie tension in mV.
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*
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**/
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/******************************************************************************/
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u16 UTIL_GetBat( void )
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{
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#ifdef _ADC
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u16 vbat;
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// Measure VBAT
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vbat = ADC_ConvertedValue[0]; //*( (u16*)ADC1_DR_Address ); // <=== note changed
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vbat = vbat & 0xFFF;
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vbat = ( vbat * VDD_VOLTAGE_MV ) / 0x1000;
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return vbat;
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#else
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return 0;
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#endif
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}
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/*******************************************************************************
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*
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* UTIL_GetTemp
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*
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*******************************************************************************/
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/**
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*
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* Return the Temperature: degrees / 10, Celcius or Fahrenheit.
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*
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* @return The temperature (C or F) (averaging of several channels).
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*
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**/
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/******************************************************************************/
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u16 UTIL_GetTemp( void )
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{
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s32 temp;
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s16 *p=&ADC_ConvertedValue[1]; //intent; point to first of 8 results from same source - use a short name for it!
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// Measure temp
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//temp = ADC_ConvertedValue[1];//*( (u16*)ADC1_DR_Address );
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temp = (p[0]+p[1]+p[2]+p[3]+p[4]+p[5]+p[6]+p[7])/8; //take avg of burst of 8 temp reads. may only help reject hi freq noise a bit
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//will not help reduce mains ripple because conversions are SO FAST!!
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temp = temp & 0xFFF;
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temp = ( temp * VDD_VOLTAGE_MV ) / 0x1000; //finds mV
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temp = (((1400-temp)*100000)/448)+25000; //gives approx temp x 1000 degrees C
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//Fahrenheit = 32 + 9 / 5 * Celsius
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if ( fTemperatureInFahrenheit )
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{
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temp = 32000 + (9 * temp) / 5 ;
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}
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return temp / 100;
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}
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/*******************************************************************************
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*
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* UTIL_SetTempMode
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*
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*******************************************************************************/
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/**
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*
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* Set the temperature mode (F/C)
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*
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* @param[in] mode 0: Celcius, 1: Fahrenheit
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*
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**/
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/******************************************************************************/
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void UTIL_SetTempMode ( int mode )
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{
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fTemperatureInFahrenheit = mode;
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return;
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}
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/*******************************************************************************
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*
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* UTIL_GetUsb
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*
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*******************************************************************************/
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/**
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*
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* Return the USB connexion state.
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*
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* @return The USB connexion state.
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*
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**/
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/******************************************************************************/
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u8 UTIL_GetUsb( void )
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{
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GPIO_InitStructure.GPIO_Pin = GPIO_USB_PIN;
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GPIO_InitStructure.GPIO_Mode = GPIO_Mode_IN_FLOATING;
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GPIO_InitStructure.GPIO_Speed = GPIO_Speed_50MHz;
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GPIO_Init( GPIOx_USB, &GPIO_InitStructure );
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return ( GPIO_ReadInputDataBit( GPIOx_USB, GPIO_USB_PIN ) == Bit_SET );
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}
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/*******************************************************************************
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*
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* UTIL_uint2str
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*
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*******************************************************************************/
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/**
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*
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* Convert an <b>unsigned</b> integer into a string.
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*
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* @param [out] ptr The output string.
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* @param [in] X The unsigned value to convert.
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* @param [in] digit The number of digits in the output string.
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* @param [in] fillwithzero \li 0 fill with blanks.
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* \li 1 fill with zeros.
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*
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**/
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/********************************************************************************/
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void UTIL_uint2str( char* ptr, u32 X, u16 digit, int fillwithzero )
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{
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_int2str( ptr, X, digit, 1, fillwithzero);
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}
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/*******************************************************************************
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*
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* UTIL_int2str
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*
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*******************************************************************************/
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/**
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*
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* Convert a <b>signed</b> integer into a string.
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*
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* @param [out] ptr The output string.
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* @param [in] X The unsigned value to convert.
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* @param [in] digit The number of digits in the output string.
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* @param [in] fillwithzero \li 0 fill with blanks.
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* \li 1 fill with zeros.
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*
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**/
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/******************************************************************************/
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void UTIL_int2str( char* ptr, s32 X, u16 digit, int fillwithzero )
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{
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_int2str( ptr, X, digit, 0, fillwithzero);
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}
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/*******************************************************************************
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*
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* UTIL_SetPll
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*
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*******************************************************************************/
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/**
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*
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* Set clock frequency (lower to save energy)
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*
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* @param [in] speed New clock speed from very low to very fast.
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*
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**/
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/******************************************************************************/
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void UTIL_SetPll( enum eSpeed speed )
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{
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/* Select PLL as system clock source */
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RCC_SYSCLKConfig( RCC_SYSCLKSource_HSI );
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/* Enable PLL */
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RCC_PLLCmd( DISABLE );
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if( ( speed < SPEED_VERY_LOW ) || ( speed > SPEED_VERY_HIGH ) )
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{
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speed = SPEED_MEDIUM;
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}
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CurrentSpeed = speed;
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switch( speed )
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{
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// 18 MHz
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case SPEED_VERY_LOW :
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/* PLLCLK = 6MHz * 3 = 18 MHz */
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RCC_PLLConfig( RCC_PLLSource_HSE_Div2, RCC_PLLMul_3 );
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break;
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// 24MHz
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case SPEED_LOW :
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/* PLLCLK = 12MHz * 2 = 24 MHz */
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RCC_PLLConfig( RCC_PLLSource_HSE_Div1, RCC_PLLMul_2 );
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break;
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// 36MHz
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case SPEED_MEDIUM :
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default :
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/* PLLCLK = 12MHz * 3 = 36 MHz */
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RCC_PLLConfig( RCC_PLLSource_HSE_Div1, RCC_PLLMul_3 );
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break;
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// 48MHz
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case SPEED_HIGH :
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/* PLLCLK = 12MHz * 4 = 48 MHz */
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RCC_PLLConfig( RCC_PLLSource_HSE_Div1, RCC_PLLMul_4 );
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break;
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// 72MHz
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case SPEED_VERY_HIGH :
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/* PLLCLK = 12MHz * 6 = 72 MHz */
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RCC_PLLConfig( RCC_PLLSource_HSE_Div1, RCC_PLLMul_6 );
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break;
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}
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/* Enable PLL */
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RCC_PLLCmd( ENABLE );
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/* Wait till PLL is ready */
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while( RCC_GetFlagStatus( RCC_FLAG_PLLRDY ) == RESET )
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{ ; }
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/* Select PLL as system clock source */
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RCC_SYSCLKConfig( RCC_SYSCLKSource_PLLCLK );
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/* Wait till PLL is used as system clock source */
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while( RCC_GetSYSCLKSource() != 0x08 )
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{ ; }
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/* This function fills a RCC_ClocksTypeDef structure with the current frequencies
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of different on chip clocks (for debug purpose) */
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RCC_GetClocksFreq( &RCC_ClockFreq );
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}
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/*******************************************************************************
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*
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* UTIL_GetPll
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*
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*******************************************************************************/
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/**
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*
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* Get clock frequency
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*
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* @return Current clock speed from very low to very fast.
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*
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**/
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/******************************************************************************/
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enum eSpeed UTIL_GetPll( void )
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{
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return CurrentSpeed;
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}
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/*******************************************************************************
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*
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* UTIL_GetVersion
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*
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*******************************************************************************/
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/**
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*
|
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* Get CircleOS version.
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*
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* @return A pointer to a string containing the CircleOS version.
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386 |
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*
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**/
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388 |
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/******************************************************************************/
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const char* UTIL_GetVersion( void )
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{
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return OsVersion;
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}
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/*******************************************************************************
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*
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* UTIL_ReadBackupRegister
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397 |
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*
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398 |
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*******************************************************************************/
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399 |
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/**
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400 |
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*
|
401 |
|
|
* Reads data from the specified Data Backup Register.
|
402 |
|
|
*
|
403 |
|
|
* @param[in] BKP_DR Specifies the Data Backup Register. This parameter can be BKP_DRx where x:[1, 10]
|
404 |
|
|
*
|
405 |
|
|
* @return The content of the specified Data Backup Register.
|
406 |
|
|
*
|
407 |
|
|
**/
|
408 |
|
|
/******************************************************************************/
|
409 |
|
|
u16 UTIL_ReadBackupRegister( u16 BKP_DR )
|
410 |
|
|
{
|
411 |
|
|
return (*(vu16 *)( BKP_BASE + 4 * BKP_DR ) );
|
412 |
|
|
}
|
413 |
|
|
|
414 |
|
|
/*******************************************************************************
|
415 |
|
|
*
|
416 |
|
|
* UTIL_WriteBackupRegister
|
417 |
|
|
*
|
418 |
|
|
*******************************************************************************/
|
419 |
|
|
/**
|
420 |
|
|
*
|
421 |
|
|
* Writes data to the specified Data Backup Register.
|
422 |
|
|
*
|
423 |
|
|
* @param[in] BKP_DR Specifies the Data Backup Register. This parameter can be BKP_DRx where x:[1, 10]
|
424 |
|
|
* @param[in] Data The data to write.
|
425 |
|
|
*
|
426 |
|
|
**/
|
427 |
|
|
/********************************************************************************/
|
428 |
|
|
void UTIL_WriteBackupRegister( u16 BKP_DR, u16 Data )
|
429 |
|
|
{
|
430 |
|
|
*(vu16 *)( BKP_BASE + 4 * BKP_DR ) = Data;
|
431 |
|
|
}
|
432 |
|
|
|
433 |
|
|
|
434 |
|
|
/*******************************************************************************
|
435 |
|
|
*
|
436 |
|
|
* UTIL_SetIrqHandler
|
437 |
|
|
*
|
438 |
|
|
*******************************************************************************/
|
439 |
|
|
/**
|
440 |
|
|
*
|
441 |
|
|
* Redirect an IRQ handler.
|
442 |
|
|
*
|
443 |
|
|
* @param[in] Offs Address in the NVIC table
|
444 |
|
|
* @param[in] pHDL Pointer to the handler.
|
445 |
|
|
*
|
446 |
|
|
**/
|
447 |
|
|
/********************************************************************************/
|
448 |
|
|
void UTIL_SetIrqHandler( int Offs, tHandler pHDL )
|
449 |
|
|
{
|
450 |
|
|
if ( (Offs >= 8) && (Offs<0x100) )
|
451 |
|
|
*(tHandler *)( CIRCLEOS_RAM_BASE + Offs ) = pHDL;
|
452 |
|
|
}
|
453 |
|
|
|
454 |
|
|
/*******************************************************************************
|
455 |
|
|
*
|
456 |
|
|
* UTIL_GetIrqHandler
|
457 |
|
|
*
|
458 |
|
|
*******************************************************************************/
|
459 |
|
|
/**
|
460 |
|
|
*
|
461 |
|
|
* Get the current IRQ handler.
|
462 |
|
|
* Since (V1.6) the vector table is relocated in RAM, the vectors can be easily modified
|
463 |
|
|
* by the applications.
|
464 |
|
|
*
|
465 |
|
|
* @param[in] Offs Address in the NVIC table
|
466 |
|
|
* @return A pointer to the current handler.
|
467 |
|
|
*
|
468 |
|
|
**/
|
469 |
|
|
/********************************************************************************/
|
470 |
|
|
tHandler UTIL_GetIrqHandler( int Offs )
|
471 |
|
|
{
|
472 |
|
|
if ( (Offs >= 8) && (Offs<0x100) )
|
473 |
|
|
return *(tHandler *)( CIRCLEOS_RAM_BASE + Offs );
|
474 |
|
|
}
|
475 |
|
|
|
476 |
|
|
|
477 |
|
|
|
478 |
|
|
/*******************************************************************************
|
479 |
|
|
*
|
480 |
|
|
* UTIL_SetSchHandler
|
481 |
|
|
*
|
482 |
|
|
*******************************************************************************/
|
483 |
|
|
/**
|
484 |
|
|
*
|
485 |
|
|
* Redirect a SCHEDULER handler.
|
486 |
|
|
* Set the current SCHEDULER handler. With UTIL_GetSchHandler(), these functions
|
487 |
|
|
* allow to take the control of the different handler. You can:
|
488 |
|
|
* - replace them (get-Set)by your own handler
|
489 |
|
|
* - disable a handler: UTIL_SetSchHandler(Ix,0);
|
490 |
|
|
* - create a new handler (using the unused handlers).
|
491 |
|
|
* See scheduler.c to understand further...
|
492 |
|
|
*
|
493 |
|
|
* @param[in] Ix ID if the SCH Handler
|
494 |
|
|
* @param[in] pHDL Pointer to the handler.
|
495 |
|
|
*
|
496 |
|
|
**/
|
497 |
|
|
/********************************************************************************/
|
498 |
|
|
void UTIL_SetSchHandler( enum eSchHandler Ix, tHandler pHDL )
|
499 |
|
|
{
|
500 |
|
|
if (Ix<SCH_HDL_MAX)
|
501 |
|
|
SchHandler[Ix] = pHDL;
|
502 |
|
|
}
|
503 |
|
|
|
504 |
|
|
/*******************************************************************************
|
505 |
|
|
*
|
506 |
|
|
* UTIL_GetSchHandler
|
507 |
|
|
*
|
508 |
|
|
*******************************************************************************/
|
509 |
|
|
/**
|
510 |
|
|
*
|
511 |
|
|
* Get the current SCHEDULER handler. With UTIL_SetSchHandler(), these functions
|
512 |
|
|
* allow to take the control of the different handler. You can:
|
513 |
|
|
* - replace them (get-Set)by your own handler
|
514 |
|
|
* - disable a handler: UTIL_SetSchHandler(Ix,0);
|
515 |
|
|
* - create a new handler (using the unused handlers).
|
516 |
|
|
* See scheduler.c to understand further...
|
517 |
|
|
*
|
518 |
|
|
* @param[in] Ix ID is the SCH Handler
|
519 |
|
|
* @return A pointer to the current handler.
|
520 |
|
|
*
|
521 |
|
|
**/
|
522 |
|
|
/********************************************************************************/
|
523 |
|
|
tHandler UTIL_GetSchHandler( enum eSchHandler Ix )
|
524 |
|
|
{
|
525 |
|
|
if ( Ix<SCH_HDL_MAX )
|
526 |
|
|
return SchHandler [Ix] ;
|
527 |
|
|
}
|
528 |
|
|
|