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/*!
* @file apm32f10x_crc.c
*
* @brief This file provides all the CRC firmware functions
*
* @version V1.0.1
*
* @date 2021-03-23
*
*/
#include "apm32f10x_crc.h"
/** @addtogroup Peripherals_Library Standard Peripheral Library
@{
*/
/** @addtogroup CRC_Driver CRC Driver
@{
*/
/** @addtogroup CRC_Fuctions Fuctions
@{
*/
/*!
* @brief Reset CRC data register.
*
* @param None
*
* @retval None
*
* @note
*/
void CRC_ResetDATA(void)
{
CRC->CTRL_B.RST = BIT_SET;
}
/*!
* @brief Calculate CRC of a 32bit data word.
*
* @param data: a data word to compute its CRC.
* This parameter can be a 32bit value:
*
* @retval A 32-bit CRC value
*/
uint32_t CRC_CalculateCRC(uint32_t data)
{
CRC->DATA = data;
return (CRC->DATA);
}
/*!
* @brief Computes the 32-bit CRC of a given buffer of data word(32-bit).
*
* @param buf: Pointer to the buffer containing the data to be computed.
*
* @param bufLen: The length of buffer which is computed.
*
* @retval A 32-bit CRC value
*/
uint32_t CRC_CalculateBlockCRC(uint32_t *buf, uint32_t bufLen)
{
while(bufLen--)
{
CRC->DATA = *buf++;
}
return (CRC->DATA);
}
/*!
* @brief Returns the current CRC value.
*
* @param None
*
* @retval A 32-bit CRC value
*/
uint32_t CRC_ReadCRC(void)
{
return (CRC->DATA);
}
/*!
* @brief Saves a 8bit data in the Independent Data register(INDATA).
*
* @param inData: a 8-bit value to be stored in the ID register
*
* @retval None
*/
void CRC_WriteIDRegister(uint8_t inData)
{
CRC->INDATA = inData;
}
/*!
* @brief Reads a 8-bit data saved in the Independent Data register(INDATA).
*
* @param None
*
* @retval a 8-bit value from the INDATA register
*/
uint8_t CRC_ReadIDRegister(void)
{
return (CRC->INDATA);
}
/**@} end of group CRC_Fuctions*/
/**@} end of group CRC_Driver*/
/**@} end of group Peripherals_Library*/
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