84 lines
2.6 KiB
C
84 lines
2.6 KiB
C
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/**************************************************************************//**
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* @file nu_trng.h
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* @version V3.00
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* @brief TRNG driver header file
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*
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* @copyright SPDX-License-Identifier: Apache-2.0
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* @copyright Copyright (C) 2021 Nuvoton Technology Corp. All rights reserved.
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******************************************************************************/
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#ifndef __NU_TRNG_H__
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#define __NU_TRNG_H__
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#ifdef __cplusplus
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extern "C"
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{
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#endif
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/** @addtogroup Standard_Driver Standard Driver
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@{
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*/
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/** @addtogroup TRNG_Driver TRNG Driver
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@{
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*/
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/** @addtogroup M460_TRNG_EXPORTED_MACROS TRNG Exported Macros
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@{
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*/
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/*----------------------------------------------------------------------------------------------*/
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/* Macros */
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/*----------------------------------------------------------------------------------------------*/
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/**
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* @brief Let TRNG engine know the currrent PCLK frequency. The CLKPSC is the peripheral
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* clock frequency range for the selected value , the CLKPSC setting must be higher
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* than or equal to the actual peripheral clock frequency (for correct random generation).
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* @param clkpsc 0: PCLK is 80~100 MHz
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* 1: PCLK is 60~80 MHz
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* 2: PCLK is 50~60 MHz
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* 3: PCLK is 40~50 MHz
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* 4: PCLK is 30~40 MHz
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* 5: PCLK is 25~30 MHz
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* 6: PCLK is 20~25 MHz
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* 7: PCLK is 15~20 MHz
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* 8: PCLK is 12~15 MHz
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* 9: PCLK is 9~12 MHz
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*
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* @return None
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* \hideinitializer
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*/
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#define TRNG_SET_CLKP(clkpsc) do { TRNG->CTL = (TRNG->CTL&~TRNG_CTL_CLKP_Msk)|((clkpsc & 0xf)<<TRNG_CTL_CLKP_Pos); } while(0);
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/*@}*/ /* end of group M460_TRNG_EXPORTED_MACROS */
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/** @addtogroup TRNG_EXPORTED_FUNCTIONS TRNG Exported Functions
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@{
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*/
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/*---------------------------------------------------------------------------------------------------------*/
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/* Functions */
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/*---------------------------------------------------------------------------------------------------------*/
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int32_t TRNG_Open(void);
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int32_t TRNG_GenWord(uint32_t *u32RndNum);
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int32_t TRNG_GenBignum(uint8_t u8BigNum[], int32_t i32Len);
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int32_t TRNG_GenBignumHex(char cBigNumHex[], int32_t i32Len);
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/*@}*/ /* end of group TRNG_EXPORTED_FUNCTIONS */
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/*@}*/ /* end of group TRNG_Driver */
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/*@}*/ /* end of group Standard_Driver */
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#ifdef __cplusplus
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}
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#endif
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#endif /* __NU_TRNG_H__ */
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