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/**
******************************************************************************
* @file IAP/IAP_Main/Src/common.c
* @author MCD Application Team
* @brief This file provides all the common functions.
******************************************************************************
* @attention
*
* Copyright (c) 2017 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/** @addtogroup STM32F4xx_IAP_Main
* @{
*/
/* Includes ------------------------------------------------------------------*/
#include "common.h"
#include "main.h"
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
/* Private functions ---------------------------------------------------------*/
/**
* @brief Convert an Integer to a string
* @param p_str: The string output pointer
* @param intnum: The integer to be converted
* @retval None
*/
void Int2Str(uint8_t *p_str, uint32_t intnum)
{
uint32_t i, divider = 1000000000, pos = 0, status = 0;
for (i = 0; i < 10; i++)
{
p_str[pos++] = (intnum / divider) + 48;
intnum = intnum % divider;
divider /= 10;
if ((p_str[pos-1] == '0') & (status == 0))
{
pos = 0;
}
else
{
status++;
}
}
}
/**
* @brief Convert a string to an integer
* @param p_inputstr: The string to be converted
* @param p_intnum: The integer value
* @retval 1: Correct
* 0: Error
*/
uint32_t Str2Int(uint8_t *p_inputstr, uint32_t *p_intnum)
{
uint32_t i = 0, res = 0;
uint32_t val = 0;
if ((p_inputstr[0] == '0') && ((p_inputstr[1] == 'x') || (p_inputstr[1] == 'X')))
{
i = 2;
while ( ( i < 11 ) && ( p_inputstr[i] != '\0' ) )
{
if (ISVALIDHEX(p_inputstr[i]))
{
val = (val << 4) + CONVERTHEX(p_inputstr[i]);
}
else
{
/* Return 0, Invalid input */
res = 0;
break;
}
i++;
}
/* valid result */
if (p_inputstr[i] == '\0')
{
*p_intnum = val;
res = 1;
}
}
else /* max 10-digit decimal input */
{
while ( ( i < 11 ) && ( res != 1 ) )
{
if (p_inputstr[i] == '\0')
{
*p_intnum = val;
/* return 1 */
res = 1;
}
else if (((p_inputstr[i] == 'k') || (p_inputstr[i] == 'K')) && (i > 0))
{
val = val << 10;
*p_intnum = val;
res = 1;
}
else if (((p_inputstr[i] == 'm') || (p_inputstr[i] == 'M')) && (i > 0))
{
val = val << 20;
*p_intnum = val;
res = 1;
}
else if (ISVALIDDEC(p_inputstr[i]))
{
val = val * 10 + CONVERTDEC(p_inputstr[i]);
}
else
{
/* return 0, Invalid input */
res = 0;
break;
}
i++;
}
}
return res;
}
/**
* @brief Print a string on the HyperTerminal
* @param p_string: The string to be printed
* @retval None
*/
void Serial_PutString(uint8_t *p_string)
{
uint16_t length = 0;
while (p_string[length] != '\0')
{
length++;
}
HAL_UART_Transmit(&UartHandle, p_string, length, TX_TIMEOUT);
}
/**
* @brief Transmit a byte to the HyperTerminal
* @param param The byte to be sent
* @retval HAL_StatusTypeDef HAL_OK if OK
*/
HAL_StatusTypeDef Serial_PutByte( uint8_t param )
{
/* May be timeouted... */
if ( UartHandle.gState == HAL_UART_STATE_TIMEOUT )
{
UartHandle.gState = HAL_UART_STATE_READY;
}
return HAL_UART_Transmit(&UartHandle, ¶m, 1, TX_TIMEOUT);
}
/**
* @}
*/