102 lines
1.8 KiB
C
102 lines
1.8 KiB
C
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/**
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******************************************************************************
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* @brief CRC functions of the firmware library.
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******************************************************************************
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*/
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/* Includes ------------------------------------------------------------------*/
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#include "gd32f10x_crc.h"
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/** @addtogroup GD32F10x_Firmware
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* @{
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*/
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/** @defgroup CRC
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* @brief CRC driver modules
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* @{
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*/
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/** @defgroup CRC_Private_Functions
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* @{
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*/
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/**
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* @brief Reset CRC DTR register to the value of 0xFFFFFFFF.
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* @param None
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* @retval None
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*/
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void CRC_ResetDTR(void)
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{
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CRC->CTLR = CRC_CTLR_RESET;
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}
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/**
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* @brief Compute the 32-bit CRC value of a 32-bit data.
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* @param CRC_data: data to compute its CRC value
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* @retval 32-bit CRC value
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*/
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uint32_t CRC_CalcSingleData(uint32_t CRC_data)
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{
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CRC->DTR = CRC_data;
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return (CRC->DTR);
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}
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/**
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* @brief Compute the 32-bit CRC value of a 32-bit data array.
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* @param pbuffer[]: pointer to the data array
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* @param buffer_length: length of the data array
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* @retval 32-bit CRC value
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*/
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uint32_t CRC_CalcDataFlow(uint32_t pbuffer[], uint32_t buffer_length)
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{
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uint32_t index = 0;
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for (index = 0; index < buffer_length; index++) {
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CRC->DTR = pbuffer[index];
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}
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return (CRC->DTR);
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}
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/**
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* @brief Read current CRC value.
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* @param None
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* @retval 32-bit CRC value
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*/
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uint32_t CRC_ReadDTR(void)
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{
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return (CRC->DTR);
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}
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/**
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* @brief Write an 8-bit data in FDTR.
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* @param CRC_fdtr: 8-bit data to write
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* @retval None
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*/
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void CRC_WriteFDTR(uint8_t CRC_fdtr)
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{
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CRC->FDTR = CRC_fdtr;
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}
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/**
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* @brief Read the 8-bit data stored in FDTR
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* @param None
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* @retval 8-bit data
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*/
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uint8_t CRC_ReadFDTR(void)
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{
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return (CRC->FDTR);
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}
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/**
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* @}
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*/
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/**
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* @}
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*/
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/**
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* @}
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*/
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