194 lines
8.3 KiB
C
194 lines
8.3 KiB
C
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/* CH592 Flash-ROM & Data-Flash */
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/* Website: http://wch.cn */
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/* Email: tech@wch.cn */
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/* Author: W.ch 2020.06 */
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/* V1.0 FlashROM library for USER/BOOT */
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/* for the target in USER code area on the chip divided into USER code area and BOOT area */
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/* 用于具有用户代码区和引导区的芯片、操作目标为用户代码区的情况，
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可以在用户代码中被调用（IAP，擦写自身），也可以在引导代码中被调用（更新用户代码） */
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/* Flash-ROM feature:
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for store program code, support block erasing, dword and page writing, dword verifying, unit for Length is byte,
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minimal quantity for write or verify is one dword (4-bytes),
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256 bytes/page for writing, FLASH_ROM_WRITE support one dword or more dword writing, but multiple of 256 is the best,
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4KB (4096 bytes) bytes/block for erasing, so multiple of 4096 is the best */
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/* Data-Flash(EEPROM) feature:
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for store data, support block erasing, byte and page writing, byte reading,
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minimal quantity for write or read is one byte,
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256 bytes/page for writing, EEPROM_WRITE support one byte or more byte writing, but multiple of 256 is the best,
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0.25KB/4KB (256/4096 bytes) bytes/block for erasing, so multiple of 256 or 4096 is the best */
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#ifndef EEPROM_PAGE_SIZE
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#define EEPROM_PAGE_SIZE 256 // Flash-ROM & Data-Flash page size for writing
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#define EEPROM_BLOCK_SIZE 4096 // Flash-ROM & Data-Flash block size for erasing
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#define EEPROM_MIN_ER_SIZE EEPROM_PAGE_SIZE // Data-Flash minimal size for erasing
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//#define EEPROM_MIN_ER_SIZE EEPROM_BLOCK_SIZE // Flash-ROM minimal size for erasing
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#define EEPROM_MIN_WR_SIZE 1 // Data-Flash minimal size for writing
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#define EEPROM_MAX_SIZE 0x8000 // Data-Flash maximum size, 32KB
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#endif
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#ifndef FLASH_MIN_WR_SIZE
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#define FLASH_MIN_WR_SIZE 4 // Flash-ROM minimal size for writing
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#endif
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#ifndef FLASH_ROM_MAX_SIZE
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#define FLASH_ROM_MAX_SIZE 0x070000 // Flash-ROM maximum program size, 448KB
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#endif
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#ifndef CMD_FLASH_ROM_SW_RESET
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// CMD_* for caller from FlashROM or RAM, auto execute CMD_FLASH_ROM_SW_RESET before command
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#define CMD_FLASH_ROM_START_IO 0x00 // start FlashROM I/O, without parameter
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#define CMD_FLASH_ROM_SW_RESET 0x04 // software reset FlashROM, without parameter
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#define CMD_GET_ROM_INFO 0x06 // get information from FlashROM, parameter @Address,Buffer
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#define CMD_GET_UNIQUE_ID 0x07 // get 64 bit unique ID, parameter @Buffer
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#define CMD_FLASH_ROM_PWR_DOWN 0x0D // power-down FlashROM, without parameter
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#define CMD_FLASH_ROM_PWR_UP 0x0C // power-up FlashROM, without parameter
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#define CMD_FLASH_ROM_LOCK 0x08 // lock(protect)/unlock FlashROM data block, return 0 if success, parameter @StartAddr
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// StartAddr: 0=unlock all, 1=lock boot code, 3=lock all code and data
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#define CMD_EEPROM_ERASE 0x09 // erase Data-Flash block, return 0 if success, parameter @StartAddr,Length
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#define CMD_EEPROM_WRITE 0x0A // write Data-Flash data block, return 0 if success, parameter @StartAddr,Buffer,Length
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#define CMD_EEPROM_READ 0x0B // read Data-Flash data block, parameter @StartAddr,Buffer,Length
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#define CMD_FLASH_ROM_ERASE 0x01 // erase FlashROM block, return 0 if success, parameter @StartAddr,Length
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#define CMD_FLASH_ROM_WRITE 0x02 // write FlashROM data block, minimal block is dword, return 0 if success, parameter @StartAddr,Buffer,Length
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#define CMD_FLASH_ROM_VERIFY 0x03 // read FlashROM data block, minimal block is dword, return 0 if success, parameter @StartAddr,Buffer,Length
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#endif
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#define ROM_CFG_VERISON 0x7F010
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#define DEF_CHIP_ID_CH592A 9 // QFN28
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#define ROM_CFG_MAC_ADDR 0x7F018 // address for MAC address information
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#define ROM_CFG_BOOT_INFO 0x7DFF8 // address for BOOT information
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/**
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* @brief execute Flash/EEPROM command, caller from FlashROM or RAM
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*
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* @param cmd - CMD_* for caller from FlashROM or RAM.
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* @param StartAddr - Address of the data to be process.
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* @param Buffer - Pointer to the buffer where data should be process, Must in RAM and be aligned to 4 bytes.
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* @param Length - Size of data to be process, in bytes.
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*
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* @return 0-SUCCESS (!0)-FAILURE
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*/
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extern uint32_t FLASH_EEPROM_CMD( uint8_t cmd, uint32_t StartAddr, void *Buffer, uint32_t Length );
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/**
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* @brief start FlashROM I/O
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*
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* @return 0-SUCCESS (!0)-FAILURE
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*/
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#define FLASH_ROM_START_IO( ) FLASH_EEPROM_CMD( CMD_FLASH_ROM_START_IO, 0, NULL, 0 )
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/**
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* @brief software reset FlashROM
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*
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* @return 0-SUCCESS (!0)-FAILURE
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*/
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#define FLASH_ROM_SW_RESET( ) FLASH_EEPROM_CMD( CMD_FLASH_ROM_SW_RESET, 0, NULL, 0 )
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/**
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* @brief get 6 bytes MAC address
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*
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* @param Buffer - Pointer to the buffer where data should be stored, Must in RAM and be aligned to 4 bytes.
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*
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* @return 0-SUCCESS (!0)-FAILURE
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*/
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#define GetMACAddress(Buffer) FLASH_EEPROM_CMD( CMD_GET_ROM_INFO, ROM_CFG_MAC_ADDR, Buffer, 0 )
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/**
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* @brief get 8 bytes BOOT information
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*
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* @param Buffer - Pointer to the buffer where data should be stored, Must in RAM and be aligned to 4 bytes.
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*
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* @return 0-SUCCESS (!0)-FAILURE
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*/
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#define GET_BOOT_INFO(Buffer) FLASH_EEPROM_CMD( CMD_GET_ROM_INFO, ROM_CFG_BOOT_INFO, Buffer, 0 )
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/**
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* @brief power-down FlashROM
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*
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* @return 0-SUCCESS (!0)-FAILURE
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*/
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#define FLASH_ROM_PWR_DOWN( ) FLASH_EEPROM_CMD( CMD_FLASH_ROM_PWR_DOWN, 0, NULL, 0 )
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/**
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* @brief power-up FlashROM
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*
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* @return 0-SUCCESS (!0)-FAILURE
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*/
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#define FLASH_ROM_PWR_UP( ) FLASH_EEPROM_CMD( CMD_FLASH_ROM_PWR_UP, 0, NULL, 0 )
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/**
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* @brief read Data-Flash data block
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*
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* @param StartAddr - Address of the data to be read.
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* @param Buffer - Pointer to the buffer where data should be stored, Must in RAM and be aligned to 4 bytes.
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* @param Length - Size of data to be read, in bytes.
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*
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* @return 0-SUCCESS (!0)-FAILURE
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*/
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#define EEPROM_READ(StartAddr,Buffer,Length) FLASH_EEPROM_CMD( CMD_EEPROM_READ, StartAddr, Buffer, Length )
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/**
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*
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* @param StartAddr - Address of the data to be erased.
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* @param Length - Size of data to be erased, in bytes.
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*
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* @return 0-SUCCESS (!0)-FAILURE
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*/
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__attribute__((always_inline)) RV_STATIC_INLINE uint32_t EEPROM_ERASE(uint32_t StartAddr, uint32_t Length)
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{
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if(((*(uint32_t*)ROM_CFG_VERISON)&0xFF) == DEF_CHIP_ID_CH592A)
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{
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if(Length%EEPROM_BLOCK_SIZE)
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{
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while(1);
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}
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}
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return FLASH_EEPROM_CMD( CMD_EEPROM_ERASE, StartAddr, NULL, Length );
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}
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/**
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* @brief write Data-Flash data block
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*
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* @param StartAddr - Address of the data to be written.
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* @param Buffer - Pointer to the source buffer, Must in RAM and be aligned to 4 bytes.
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* @param Length - Size of data to be written, in bytes.
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*
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* @return 0-SUCCESS (!0)-FAILURE
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*/
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#define EEPROM_WRITE(StartAddr,Buffer,Length) FLASH_EEPROM_CMD( CMD_EEPROM_WRITE, StartAddr, Buffer, Length )
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/**
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* @brief erase FlashROM block
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*
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* @param StartAddr - Address of the data to be erased.
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* @param Length - Size of data to be erased, in bytes.
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*
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* @return 0-SUCCESS (!0)-FAILURE
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*/
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#define FLASH_ROM_ERASE(StartAddr,Length) FLASH_EEPROM_CMD( CMD_FLASH_ROM_ERASE, StartAddr, NULL, Length )
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/**
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* @brief write FlashROM data block, minimal block is dword.
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*
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* @param StartAddr - Address of the data to be written.
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* @param Buffer - Pointer to the source buffer, Must in RAM and be aligned to 4 bytes.
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* @param Length - Size of data to be written, in bytes.
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*
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* @return 0-SUCCESS (!0)-FAILURE
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*/
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#define FLASH_ROM_WRITE(StartAddr,Buffer,Length) FLASH_EEPROM_CMD( CMD_FLASH_ROM_WRITE, StartAddr, Buffer, Length )
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/**
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* @brief verify FlashROM data block, minimal block is dword.
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*
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* @param StartAddr - Address of the data to verify.
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* @param Buffer - Pointer to the source buffer, Must in RAM and be aligned to 4 bytes.
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* @param Length - Size of data to verify, in bytes.
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*
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* @return 0-SUCCESS (!0)-FAILURE
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*/
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#define FLASH_ROM_VERIFY(StartAddr,Buffer,Length) FLASH_EEPROM_CMD( CMD_FLASH_ROM_VERIFY, StartAddr, Buffer, Length )
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