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/*!
* @file apm32s10x_crc.c
*
* @brief This file provides all the CRC firmware functions
*
* @version V1.0.1
*
* @date 2022-12-31
*
* @attention
*
* Copyright (C) 2022-2023 Geehy Semiconductor
*
* You may not use this file except in compliance with the
* GEEHY COPYRIGHT NOTICE (GEEHY SOFTWARE PACKAGE LICENSE).
*
* The program is only for reference, which is distributed in the hope
* that it will be usefull and instructional for customers to develop
* their software. Unless required by applicable law or agreed to in
* writing, the program is distributed on an "AS IS" BASIS, WITHOUT
* ANY WARRANTY OR CONDITIONS OF ANY KIND, either express or implied.
* See the GEEHY SOFTWARE PACKAGE LICENSE for the governing permissions
* and limitations under the License.
*/
/* Includes */
#include "apm32s10x_crc.h"
/** @addtogroup APM32S10x_StdPeriphDriver
@{
*/
/** @addtogroup CRC_Driver CRC Driver
@{
*/
/** @defgroup CRC_Functions Functions
@{
*/
/*!
* @brief Reset CRC data register.
*
* @param None
*
* @retval None
*/
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_Functions */
/**@} end of group CRC_Driver */
/**@} end of group APM32S10x_StdPeriphDriver */
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