/**************************************************************************//**
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* @file efuse.c
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* @version V1.00
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* $Revision: 0$
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* $Date: 20/10/14 15:26 $
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* @brief Panchip SoC eFuse driver source file
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*
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* @note
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* Copyright (C) 2020 Panchip Technology Corp. All rights reserved.
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*****************************************************************************/
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#include "PanSeries.h"
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#include "pan_efuse.h"
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/**
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* @brief Read specified one byte from eFuse.
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*
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* @param[in] efuse Module name of eFuse, typically EFUSE.
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* @param[in] addr eFuse address to read data from.
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* @retval Data read from eFuse.
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*
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* @note Unlock register before use this API.
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*/
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uint8_t EFUSE_ReadByte(EFUSE_T* efuse, uint32_t addr)
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{
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efuse->EF_CMD = EFUSE_CMD_READ;
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efuse->EF_ADDR = addr;
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efuse->EF_TRG = EFUSE_TRG_EFUSETRG_GO_Msk;
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while(efuse->EF_TRG){}
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return efuse->EF_DAT;
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}
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/**
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* @brief Read multiple data from eFuse.
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*
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* @param[in] efuse Module name of eFuse, typically EFUSE.
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* @param[in] addr eFuse address to read data from.
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* @param[in] data Buffer to store data read from eFuse.
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* @param[in] len Number of bytes to read.
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* @retval true Read success.
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* @retval false Error occurs while reading.
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*
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* @note Unlock register before use this API.
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*/
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bool EFUSE_Read(EFUSE_T* efuse, uint32_t addr, uint8_t* data, uint16_t len)
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{
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for (size_t i = 0; i < len; i++)
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{
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efuse->EF_CMD = EFUSE_CMD_READ;
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efuse->EF_ADDR = addr + i;
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efuse->EF_TRG = EFUSE_TRG_EFUSETRG_GO_Msk;
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while(efuse->EF_TRG){}
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if (efuse->EF_OP_ERROR)
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{
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efuse->EF_OP_ERROR = 1u; // Clear error status reg
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return false;
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}
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data[i] = efuse->EF_DAT;
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}
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return true;
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}
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/**
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* @brief Write one byte data to specified eFuse address.
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*
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* @param[in] efuse Module name of eFuse, typically EFUSE.
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* @param[in] addr eFuse address to write data to.
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* @param[in] data Data to write to eFuse.
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* @return None.
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*
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* @note Unlock register before use this API.
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*/
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void EFUSE_WriteByte(EFUSE_T* efuse, uint32_t addr, uint8_t data)
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{
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efuse->EF_VDD = (EFUSE_VDD_AVDD_REG_Msk | EFUSE_VDD_DVDD_REG_Msk);
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efuse->EF_CMD = EFUSE_CMD_PROGRAM;
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efuse->EF_ADDR = addr;
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efuse->EF_DAT = data | (data<< 8); //efuse data; bit0-7:data, bit8-15:data confirm
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efuse->EF_TRG |= EFUSE_TRG_EFUSETRG_GO_Msk;
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while(efuse->EF_TRG){}
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efuse->EF_VDD &= ~(EFUSE_VDD_AVDD_REG_Msk);
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}
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/**
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* @brief Write multiple data to eFuse.
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*
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* @param[in] efuse Module name of eFuse, typically EFUSE.
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* @param[in] addr eFuse address to write data to.
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* @param[in] data Buffer to store data to be write to eFuse.
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* @param[in] len Number of bytes to write.
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* @retval true Write success.
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* @retval false Error occurs while writing.
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*
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* @note Unlock register before use this API.
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*/
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bool EFUSE_Write(EFUSE_T* efuse, uint32_t addr, uint8_t* data, uint16_t len)
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{
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efuse->EF_VDD = (EFUSE_VDD_AVDD_REG_Msk | EFUSE_VDD_DVDD_REG_Msk); //open avdd
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for (size_t i = 0; i < len; i++)
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{
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efuse->EF_CMD = EFUSE_CMD_PROGRAM;
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efuse->EF_ADDR = addr + i;
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efuse->EF_DAT = data[i] | (data[i]<< 8); //efuse data; bit0-7:data, bit8-15:data confirm;
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efuse->EF_TRG |= EFUSE_TRG_EFUSETRG_GO_Msk;
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while(efuse->EF_TRG){}
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if (efuse->EF_OP_ERROR)
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{
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efuse->EF_OP_ERROR = 1u; // Clear error status reg
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efuse->EF_VDD &= ~(EFUSE_VDD_AVDD_REG_Msk); // Disconnect AVDD before return
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return false;
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}
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}
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efuse->EF_VDD &= ~(EFUSE_VDD_AVDD_REG_Msk);
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return true;
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}
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/**
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* @brief Read multiple data from User Area of eFuse (Address 0xE9 ~ 0xFF).
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*
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* @param[in] efuse Module name of eFuse, typically EFUSE.
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* @param[in] addr eFuse address to read data from, should be in range of 0xE9 ~ 0xFF.
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* @param[in] data Buffer to store data read from eFuse.
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* @param[in] len Number of bytes to read.
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* @retval true Read success.
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* @retval false Error, illegal parameter (addr or len).
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*
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* @note Unlock register before use this API.
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*/
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bool EFUSE_UserRead(EFUSE_T* efuse, uint32_t addr, uint8_t* data, uint16_t len)
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{
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if ((addr < 0x7C) || (addr > 0x7F) || (addr + len > 0x80))
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{
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return false;
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}
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for (size_t i = 0; i < len; i++)
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{
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efuse->EF_CMD = EFUSE_CMD_READ;
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efuse->EF_ADDR = addr + i;
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efuse->EF_TRG = EFUSE_TRG_EFUSETRG_GO_Msk;
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while(efuse->EF_TRG){}
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data[i] = efuse->EF_DAT;
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}
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return true;
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}
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/**
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* @brief Write multiple data to User Area of eFuse (Address 0xE9 ~ 0xFF).
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*
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* @param[in] efuse Module name of eFuse, typically EFUSE.
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* @param[in] addr eFuse address to write data to, should be in range of 0xE9 ~ 0xFF.
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* @param[in] data Buffer to store data to be write to eFuse.
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* @param[in] len Number of bytes to write.
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* @retval true Write success.
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* @retval false Error, illegal parameter (addr or len).
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*
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* @note Unlock register before use this API.
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*/
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bool EFUSE_UserWrite(EFUSE_T* efuse, uint32_t addr, uint8_t* data, uint16_t len)
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{
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if ((addr < 0x7C) || (addr > 0x7F) || (addr + len > 0x80))
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{
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return false;
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}
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efuse->EF_VDD = (EFUSE_VDD_AVDD_REG_Msk | EFUSE_VDD_DVDD_REG_Msk); //open avdd
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for (size_t i = 0; i < len; i++)
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{
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efuse->EF_CMD = EFUSE_CMD_PROGRAM;
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efuse->EF_ADDR = addr + i;
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efuse->EF_DAT = data[i] | (data[i]<< 8); //efuse data; bit0-7:data, bit8-15:data confirm;
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efuse->EF_TRG |= EFUSE_TRG_EFUSETRG_GO_Msk;
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while(efuse->EF_TRG){}
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}
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efuse->EF_VDD &= ~(EFUSE_VDD_AVDD_REG_Msk);
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return true;
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}
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