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BC2D-POS-firmware/libraries/drivers/src/at32f413_flash.c

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initial commit
2024-04-11 17:32:58 +08:00
/**
**************************************************************************
* @file at32f413_flash.c
* @brief contains all the functions for the flash firmware library
**************************************************************************
* Copyright notice & Disclaimer
*
* The software Board Support Package (BSP) that is made available to
* download from Artery official website is the copyrighted work of Artery.
* Artery authorizes customers to use, copy, and distribute the BSP
* software and its related documentation for the purpose of design and
* development in conjunction with Artery microcontrollers. Use of the
* software is governed by this copyright notice and the following disclaimer.
*
* THIS SOFTWARE IS PROVIDED ON "AS IS" BASIS WITHOUT WARRANTIES,
* GUARANTEES OR REPRESENTATIONS OF ANY KIND. ARTERY EXPRESSLY DISCLAIMS,
* TO THE FULLEST EXTENT PERMITTED BY LAW, ALL EXPRESS, IMPLIED OR
* STATUTORY OR OTHER WARRANTIES, GUARANTEES OR REPRESENTATIONS,
* INCLUDING BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT.
*
**************************************************************************
*/
#include "at32f413_conf.h"
/** @addtogroup AT32F413_periph_driver
* @{
*/
/** @defgroup FLASH
* @brief FLASH driver modules
* @{
*/
#ifdef FLASH_MODULE_ENABLED
/** @defgroup FLASH_private_functions
* @{
*/
/**
* @brief check whether the specified flash flag is set or not.
* @param flash_flag: specifies the flash flag to check.
* this parameter can be one of flash flag status:
* - FLASH_OBF_FLAG
* - FLASH_ODF_FLAG
* - FLASH_PRGMERR_FLAG
* - FLASH_EPPERR_FLAG
* - FLASH_SPIM_OBF_FLAG
* - FLASH_SPIM_ODF_FLAG
* - FLASH_SPIM_PRGMERR_FLAG
* - FLASH_SPIM_EPPERR_FLAG
* - FLASH_USDERR_FLAG
* @retval the new state of flash_flag (SET or RESET).
*/
flag_status flash_flag_get(uint32_t flash_flag)
{
flag_status status = RESET;
uint32_t flag_position;
flag_position = flash_flag & 0x70000000;
flash_flag &= 0x8FFFFFFF;
switch(flag_position)
{
case 0x00000000:
if(FLASH->sts & flash_flag)
status = SET;
break;
case 0x20000000:
if(FLASH->sts3 & flash_flag)
status = SET;
break;
case 0x40000000:
if(FLASH->usd & flash_flag)
status = SET;
break;
default:
break;
}
/* return the new state of flash_flag (SET or RESET) */
return status;
}
/**
* @brief clear the flash flag.
* @param flash_flag: specifies the flash flags to clear.
* this parameter can be any combination of the following values:
* - FLASH_ODF_FLAG
* - FLASH_PRGMERR_FLAG
* - FLASH_EPPERR_FLAG
* - FLASH_SPIM_ODF_FLAG
* - FLASH_SPIM_PRGMERR_FLAG
* - FLASH_SPIM_EPPERR_FLAG
* @retval none
*/
void flash_flag_clear(uint32_t flash_flag)
{
uint32_t flag_position;
flag_position = flash_flag & 0x70000000;
flash_flag &= 0x8FFFFFFF;
switch(flag_position)
{
case 0x00000000:
FLASH->sts = flash_flag;
break;
case 0x20000000:
FLASH->sts3 = flash_flag;
break;
default:
break;
}
}
/**
* @brief return the flash operation status.
* @param none
* @retval status: the returned value can be: FLASH_OPERATE_BUSY,
* FLASH_PROGRAM_ERROR, FLASH_EPP_ERROR or FLASH_OPERATE_DONE.
*/
flash_status_type flash_operation_status_get(void)
{
flash_status_type flash_status = FLASH_OPERATE_DONE;
if(FLASH->sts_bit.obf != RESET)
{
flash_status = FLASH_OPERATE_BUSY;
}
else if(FLASH->sts_bit.prgmerr != RESET)
{
flash_status = FLASH_PROGRAM_ERROR;
}
else if(FLASH->sts_bit.epperr != RESET)
{
flash_status = FLASH_EPP_ERROR;
}
else
{
flash_status = FLASH_OPERATE_DONE;
}
/* return the flash status */
return flash_status;
}
/**
* @brief return the flash spim operation status.
* @param none
* @retval status: the returned value can be: FLASH_OPERATE_BUSY,
* FLASH_PROGRAM_ERROR, FLASH_EPP_ERROR or FLASH_OPERATE_DONE.
*/
flash_status_type flash_spim_operation_status_get(void)
{
flash_status_type flash_status = FLASH_OPERATE_DONE;
if(FLASH->sts3_bit.obf != RESET)
{
flash_status = FLASH_OPERATE_BUSY;
}
else if(FLASH->sts3_bit.prgmerr != RESET)
{
flash_status = FLASH_PROGRAM_ERROR;
}
else if(FLASH->sts3_bit.epperr != RESET)
{
flash_status = FLASH_EPP_ERROR;
}
else
{
flash_status = FLASH_OPERATE_DONE;
}
/* return the flash status */
return flash_status;
}
/**
* @brief wait for flash operation complete or timeout.
* @param time_out: flash operation timeout
* @retval status: the returned value can be: FLASH_PROGRAM_ERROR,
* FLASH_EPP_ERROR, FLASH_OPERATE_DONE or FLASH_OPERATE_TIMEOUT.
*/
flash_status_type flash_operation_wait_for(uint32_t time_out)
{
flash_status_type status = FLASH_OPERATE_DONE;
/* check for the flash status */
status = flash_operation_status_get();
while((status == FLASH_OPERATE_BUSY) && (time_out != 0x00))
{
status = flash_operation_status_get();
time_out--;
}
if(time_out == 0x00)
{
status = FLASH_OPERATE_TIMEOUT;
}
/* return the status */
return status;
}
/**
* @brief wait for flash spim operation complete or timeout.
* @param time_out: flash operation timeout
* @retval status: the returned value can be: FLASH_PROGRAM_ERROR,
* FLASH_EPP_ERROR, FLASH_OPERATE_DONE or FLASH_OPERATE_TIMEOUT.
*/
flash_status_type flash_spim_operation_wait_for(uint32_t time_out)
{
flash_status_type status = FLASH_OPERATE_DONE;
/* check for the flash status */
status = flash_spim_operation_status_get();
while((status == FLASH_OPERATE_BUSY) && (time_out != 0x00))
{
status = flash_spim_operation_status_get();
time_out--;
}
if(time_out == 0x00)
{
status = FLASH_OPERATE_TIMEOUT;
}
/* return the operation status */
return status;
}
/**
* @brief unlock the flash controller.
* @param none
* @retval none
*/
void flash_unlock(void)
{
FLASH->unlock = FLASH_UNLOCK_KEY1;
FLASH->unlock = FLASH_UNLOCK_KEY2;
}
/**
* @brief unlock the flash spim controller.
* @param none
* @retval none
*/
void flash_spim_unlock(void)
{
FLASH->unlock3 = FLASH_UNLOCK_KEY1;
FLASH->unlock3 = FLASH_UNLOCK_KEY2;
}
/**
* @brief lock the flash controller.
* @param none
* @retval none
*/
void flash_lock(void)
{
FLASH->ctrl_bit.oplk = TRUE;
}
/**
* @brief lock the flash spim controller.
* @param none
* @retval none
*/
void flash_spim_lock(void)
{
FLASH->ctrl3_bit.oplk = TRUE;
}
/**
* @brief erase a specified flash sector.
* @param sector_address: the sector address to be erased.
* @retval status: the returned value can be: FLASH_PROGRAM_ERROR,
* FLASH_EPP_ERROR, FLASH_OPERATE_DONE or FLASH_OPERATE_TIMEOUT.
*/
flash_status_type flash_sector_erase(uint32_t sector_address)
{
flash_status_type status = FLASH_OPERATE_DONE;
/* spim : external flash */
if(sector_address >= FLASH_SPIM_START_ADDR)
{
FLASH->ctrl3_bit.secers = TRUE;
FLASH->addr3 = sector_address;
FLASH->ctrl3_bit.erstr = TRUE;
/* wait for operation to be completed */
status = flash_spim_operation_wait_for(SPIM_ERASE_TIMEOUT);
/* disable the secers bit */
FLASH->ctrl3_bit.secers = FALSE;
/* dummy read */
flash_spim_dummy_read();
}
else
{
FLASH->ctrl_bit.secers = TRUE;
FLASH->addr = sector_address;
FLASH->ctrl_bit.erstr = TRUE;
/* wait for operation to be completed */
status = flash_operation_wait_for(ERASE_TIMEOUT);
/* disable the secers bit */
FLASH->ctrl_bit.secers = FALSE;
}
/* return the erase status */
return status;
}
/**
* @brief erase flash all internal sectors.
* @param none
* @retval status: the returned value can be: FLASH_PROGRAM_ERROR,
* FLASH_EPP_ERROR, FLASH_OPERATE_DONE or FLASH_OPERATE_TIMEOUT.
*/
flash_status_type flash_internal_all_erase(void)
{
flash_status_type status = FLASH_OPERATE_DONE;
FLASH->ctrl_bit.bankers = TRUE;
FLASH->ctrl_bit.erstr = TRUE;
/* wait for operation to be completed */
status = flash_operation_wait_for(ERASE_TIMEOUT);
/* disable the bankers bit */
FLASH->ctrl_bit.bankers = FALSE;
/* return the erase status */
return status;
}
/**
* @brief erase flash spim sectors.
* @param none
* @retval status: the returned value can be: FLASH_PROGRAM_ERROR,
* FLASH_EPP_ERROR, FLASH_OPERATE_DONE or FLASH_OPERATE_TIMEOUT.
*/
flash_status_type flash_spim_all_erase(void)
{
flash_status_type status = FLASH_OPERATE_DONE;
FLASH->ctrl3_bit.chpers = TRUE;
FLASH->ctrl3_bit.erstr = TRUE;
/* wait for operation to be completed */
status = flash_spim_operation_wait_for(SPIM_ERASE_TIMEOUT);
/* disable the chpers bit */
FLASH->ctrl3_bit.chpers = FALSE;
/* dummy read */
flash_spim_dummy_read();
/* return the erase status */
return status;
}
/**
* @brief erase the flash user system data.
* @note this functions erases all user system data except the fap byte.
* @param none
* @retval status: the returned value can be: FLASH_PROGRAM_ERROR,
* FLASH_EPP_ERROR, FLASH_OPERATE_DONE or FLASH_OPERATE_TIMEOUT.
*/
flash_status_type flash_user_system_data_erase(void)
{
flash_status_type status = FLASH_OPERATE_DONE;
uint16_t fap_val = FAP_RELIEVE_KEY;
/* get the flash access protection status */
if(flash_fap_status_get() != RESET)
{
fap_val = 0x0000;
}
/* unlock the user system data */
FLASH->usd_unlock = FLASH_UNLOCK_KEY1;
FLASH->usd_unlock = FLASH_UNLOCK_KEY2;
while(FLASH->ctrl_bit.usdulks == RESET);
/* erase the user system data */
FLASH->ctrl_bit.usders = TRUE;
FLASH->ctrl_bit.erstr = TRUE;
/* wait for operation to be completed */
status = flash_operation_wait_for(ERASE_TIMEOUT);
/* disable the usders bit */
FLASH->ctrl_bit.usders = FALSE;
if((status == FLASH_OPERATE_DONE) && (fap_val == FAP_RELIEVE_KEY))
{
/* enable the user system data programming operation */
FLASH->ctrl_bit.usdprgm = TRUE;
/* restore the last flash access protection value */
USD->fap = (uint16_t)fap_val;
/* wait for operation to be completed */
status = flash_operation_wait_for(PROGRAMMING_TIMEOUT);
/*disable the usdprgm bit */
FLASH->ctrl_bit.usdprgm = FALSE;
}
/* return the erase status */
return status;
}
/**
* @brief program a word at a specified address.
* @param address: specifies the address to be programmed, word alignment is recommended.
* @param data: specifies the data to be programmed.
* @retval status: the returned value can be: FLASH_PROGRAM_ERROR,
* FLASH_EPP_ERROR, FLASH_OPERATE_DONE or FLASH_OPERATE_TIMEOUT.
*/
flash_status_type flash_word_program(uint32_t address, uint32_t data)
{
flash_status_type status = FLASH_OPERATE_DONE;
/* spim : external flash */
if(address >= FLASH_SPIM_START_ADDR)
{
FLASH->ctrl3_bit.fprgm = TRUE;
*(__IO uint32_t*)address = data;
/* wait for operation to be completed */
status = flash_spim_operation_wait_for(SPIM_PROGRAMMING_TIMEOUT);
/* disable the fprgm bit */
FLASH->ctrl3_bit.fprgm = FALSE;
/* dummy read */
flash_spim_dummy_read();
}
else
{
FLASH->ctrl_bit.fprgm = TRUE;
*(__IO uint32_t*)address = data;
/* wait for operation to be completed */
status = flash_operation_wait_for(PROGRAMMING_TIMEOUT);
/* disable the fprgm bit */
FLASH->ctrl_bit.fprgm = FALSE;
}
/* return the program status */
return status;
}
/**
* @brief program a halfword at a specified address.
* @param address: specifies the address to be programmed, halfword alignment is recommended.
* @param data: specifies the data to be programmed.
* @retval status: the returned value can be: FLASH_PROGRAM_ERROR,
* FLASH_EPP_ERROR, FLASH_OPERATE_DONE or FLASH_OPERATE_TIMEOUT.
*/
flash_status_type flash_halfword_program(uint32_t address, uint16_t data)
{
flash_status_type status = FLASH_OPERATE_DONE;
/* spim : external flash */
if(address >= FLASH_SPIM_START_ADDR)
{
FLASH->ctrl3_bit.fprgm = TRUE;
*(__IO uint16_t*)address = data;
/* wait for operation to be completed */
status = flash_spim_operation_wait_for(SPIM_PROGRAMMING_TIMEOUT);
/* disable the fprgm bit */
FLASH->ctrl3_bit.fprgm = FALSE;
/* dummy read */
flash_spim_dummy_read();
}
else
{
FLASH->ctrl_bit.fprgm = TRUE;
*(__IO uint16_t*)address = data;
/* wait for operation to be completed */
status = flash_operation_wait_for(PROGRAMMING_TIMEOUT);
/* disable the fprgm bit */
FLASH->ctrl_bit.fprgm = FALSE;
}
/* return the program status */
return status;
}
/**
* @brief program a byte at a specified address.
* @note this function cannot be used to program spim.
* @param address: specifies the address to be programmed.
* @param data: specifies the data to be programmed.
* @retval status: the returned value can be: FLASH_PROGRAM_ERROR,
* FLASH_EPP_ERROR, FLASH_OPERATE_DONE or FLASH_OPERATE_TIMEOUT.
*/
flash_status_type flash_byte_program(uint32_t address, uint8_t data)
{
flash_status_type status = FLASH_OPERATE_DONE;
FLASH->ctrl_bit.fprgm = TRUE;
*(__IO uint8_t*)address = data;
/* wait for operation to be completed */
status = flash_operation_wait_for(PROGRAMMING_TIMEOUT);
/* disable the fprgm bit */
FLASH->ctrl_bit.fprgm = FALSE;
/* return the program status */
return status;
}
/**
* @brief program a halfword at a specified user system data address.
* @param address: specifies the address to be programmed.
* @param data: specifies the data to be programmed.
* @retval status: the returned value can be: FLASH_PROGRAM_ERROR,
* FLASH_EPP_ERROR, FLASH_OPERATE_DONE or FLASH_OPERATE_TIMEOUT.
*/
flash_status_type flash_user_system_data_program(uint32_t address, uint8_t data)
{
flash_status_type status = FLASH_OPERATE_DONE;
if(address == USD_BASE)
{
if(data != 0xA5)
return FLASH_OPERATE_DONE;
}
/* unlock the user system data */
FLASH->usd_unlock = FLASH_UNLOCK_KEY1;
FLASH->usd_unlock = FLASH_UNLOCK_KEY2;
while(FLASH->ctrl_bit.usdulks==RESET);
/* enable the user system data programming operation */
FLASH->ctrl_bit.usdprgm = TRUE;
*(__IO uint16_t*)address = data;
/* wait for operation to be completed */
status = flash_operation_wait_for(PROGRAMMING_TIMEOUT);
/* disable the usdprgm bit */
FLASH->ctrl_bit.usdprgm = FALSE;
/* return the user system data program status */
return status;
}
/**
* @brief config erase/program protection for the desired sectors.
* @param sector_bits:
* the pointer of the address of the sectors to be erase/program protected.
* general every bit is used to protect the 4KB bytes, and the last one bit
* is used to protect the rest.
* @retval status: the returned value can be: FLASH_PROGRAM_ERROR,
* FLASH_EPP_ERROR, FLASH_OPERATE_DONE or FLASH_OPERATE_TIMEOUT.
*/
flash_status_type flash_epp_set(uint32_t *sector_bits)
{
uint16_t epp_data[4] = {0xFFFF,0xFFFF,0xFFFF,0xFFFF};
flash_status_type status = FLASH_OPERATE_DONE;
sector_bits[0] = (uint32_t)(~sector_bits[0]);
epp_data[0] = (uint16_t)((sector_bits[0] >> 0) & 0xFF);
epp_data[1] = (uint16_t)((sector_bits[0] >> 8) & 0xFF);
epp_data[2] = (uint16_t)((sector_bits[0] >> 16) & 0xFF);
epp_data[3] = (uint16_t)((sector_bits[0] >> 24) & 0xFF);
/* unlock the user system data */
FLASH->usd_unlock = FLASH_UNLOCK_KEY1;
FLASH->usd_unlock = FLASH_UNLOCK_KEY2;
while(FLASH->ctrl_bit.usdulks==RESET);
FLASH->ctrl_bit.usdprgm = TRUE;
USD->epp0 = epp_data[0];
/* wait for operation to be completed */
status = flash_operation_wait_for(PROGRAMMING_TIMEOUT);
if(status == FLASH_OPERATE_DONE)
{
USD->epp1 = epp_data[1];
/* wait for operation to be completed */
status = flash_operation_wait_for(PROGRAMMING_TIMEOUT);
}
if(status == FLASH_OPERATE_DONE)
{
USD->epp2 = epp_data[2];
/* wait for operation to be completed */
status = flash_operation_wait_for(PROGRAMMING_TIMEOUT);
}
if(status == FLASH_OPERATE_DONE)
{
USD->epp3 = epp_data[3];
/* wait for operation to be completed */
status = flash_operation_wait_for(PROGRAMMING_TIMEOUT);
}
/* disable the usdprgm bit */
FLASH->ctrl_bit.usdprgm = FALSE;
/* return the erase/program protection operation status */
return status;
}
/**
* @brief return the flash erase/program protection status.
* @param sector_bits: pointer to get the epps register.
* @retval none
*/
void flash_epp_status_get(uint32_t *sector_bits)
{
/* return the flash erase/program protection register value */
sector_bits[0] = (uint32_t)(FLASH->epps);
}
/**
* @brief enable or disable the flash access protection.
* @note if the user has already programmed the other user system data before calling
* this function, must re-program them since this function erase all user system data.
* @param new_state: new state of the flash access protection.
* this parameter can be: TRUE or FALSE.
* @retval status: the returned value can be: FLASH_PROGRAM_ERROR,
* FLASH_EPP_ERROR, FLASH_OPERATE_DONE or FLASH_OPERATE_TIMEOUT.
*/
flash_status_type flash_fap_enable(confirm_state new_state)
{
flash_status_type status = FLASH_OPERATE_DONE;
/* unlock the user system data */
FLASH->usd_unlock = FLASH_UNLOCK_KEY1;
FLASH->usd_unlock = FLASH_UNLOCK_KEY2;
while(FLASH->ctrl_bit.usdulks==RESET);
FLASH->ctrl_bit.usders = TRUE;
FLASH->ctrl_bit.erstr = TRUE;
/* wait for operation to be completed */
status = flash_operation_wait_for(ERASE_TIMEOUT);
/* disable the usders bit */
FLASH->ctrl_bit.usders = FALSE;
if(status == FLASH_OPERATE_DONE)
{
if(new_state == FALSE)
{
/* enable the user system data programming operation */
FLASH->ctrl_bit.usdprgm = TRUE;
USD->fap = FAP_RELIEVE_KEY;
/* Wait for operation to be completed */
status = flash_operation_wait_for(ERASE_TIMEOUT);
/* disable the usdprgm bit */
FLASH->ctrl_bit.usdprgm = FALSE;
}
}
/* return the flash access protection operation status */
return status;
}
/**
* @brief check the flash access protection status.
* @param none
* @retval flash access protection status(SET or RESET)
*/
flag_status flash_fap_status_get(void)
{
return (flag_status)FLASH->usd_bit.fap;
}
/**
* @brief program the flash system setting byte in usd: wdt_ato_en / depslp_rst / stdby_rst.
* @param usd_ssb: the system setting byte
* @note this parameter usd_ssb must contain a combination of all the following 3 types of data
* type 1: wdt_ato_en, select the wdt auto start
* this data can be one of the following values:
* - USD_WDT_ATO_DISABLE: disable wdt auto start
* - USD_WDT_ATO_ENABLE: enable wdt auto start
* type 2: depslp_rst, reset event when entering deepsleep mode.
* this data can be one of the following values:
* - USD_DEPSLP_NO_RST: no reset generated when entering in deepsleep
* - USD_DEPSLP_RST: reset generated when entering in deepsleep
* type 3: stdby_rst, reset event when entering standby mode.
* this data can be one of the following values:
* - USD_STDBY_NO_RST: no reset generated when entering in standby
* - USD_STDBY_RST: reset generated when entering in standby
* @retval status: the returned value can be: FLASH_PROGRAM_ERROR,
* FLASH_EPP_ERROR, FLASH_OPERATE_DONE or FLASH_OPERATE_TIMEOUT.
*/
flash_status_type flash_ssb_set(uint8_t usd_ssb)
{
flash_status_type status = FLASH_OPERATE_DONE;
/* unlock the user system data */
FLASH->usd_unlock = FLASH_UNLOCK_KEY1;
FLASH->usd_unlock = FLASH_UNLOCK_KEY2;
while(FLASH->ctrl_bit.usdulks==RESET);
/* enable the user system data programming operation */
FLASH->ctrl_bit.usdprgm = TRUE;
USD->ssb = usd_ssb;
/* wait for operation to be completed */
status = flash_operation_wait_for(PROGRAMMING_TIMEOUT);
/* disable the usdprgm bit */
FLASH->ctrl_bit.usdprgm = FALSE;
/* return the user system data program status */
return status;
}
/**
* @brief return the flash system setting byte status.
* @param none
* @retval values from flash_usd register: wdt_ato_en(bit0), depslp_rst(bit1) and stdby_rst(bit2).
*/
uint8_t flash_ssb_status_get(void)
{
/* return the system setting byte status */
return (uint8_t)(FLASH->usd >> 2);
}
/**
* @brief enable or disable the specified flash interrupts.
* @param flash_int: specifies the flash interrupt sources to be enabled or disabled.
* this parameter can be any combination of the following values:
* - FLASH_ERR_INT
* - FLASH_ODF_INT
* - FLASH_SPIM_ERR_INT
* - FLASH_SPIM_ODF_INT
* @param new_state: new state of the specified flash interrupts.
* this parameter can be: TRUE or FALSE.
* @retval none
*/
void flash_interrupt_enable(uint32_t flash_int, confirm_state new_state)
{
if(flash_int & FLASH_ERR_INT)
FLASH->ctrl_bit.errie = new_state;
if(flash_int & FLASH_ODF_INT)
FLASH->ctrl_bit.odfie = new_state;
if(flash_int & FLASH_SPIM_ERR_INT)
FLASH->ctrl3_bit.errie = new_state;
if(flash_int & FLASH_SPIM_ODF_INT)
FLASH->ctrl3_bit.odfie = new_state;
}
/**
* @brief select spim supports extended spi flash chip model.
* @param mode: the extended spi flash model
* @retval none
*/
void flash_spim_model_select(flash_spim_model_type mode)
{
FLASH->select = mode;
/* dummy read */
flash_spim_dummy_read();
}
/**
* @brief set the range of encryption in spim flash.
* when the address is larger than this value, the writing data will be
* directly written to spim without encryption.
* @param decode_address: the end address of encrypted data in spim
* @retval none
*/
void flash_spim_encryption_range_set(uint32_t decode_address)
{
FLASH->da = decode_address;
}
/**
* @brief operate the flash spim dummy read.
* @param none
* @retval none
*/
void flash_spim_dummy_read(void)
{
UNUSED(*(__IO uint32_t*)FLASH_SPIM_START_ADDR);
UNUSED(*(__IO uint32_t*)(FLASH_SPIM_START_ADDR + 0x1000));
UNUSED(*(__IO uint32_t*)(FLASH_SPIM_START_ADDR + 0x2000));
}
/**
* @brief mass program for flash spim.
* @param address: specifies the start address to be programmed, word or halfword alignment is recommended.
* @param buf: specifies the pointer of data to be programmed.
* @param cnt: specifies the data counter to be programmed.
* @retval status: the returned value can be: FLASH_PROGRAM_ERROR,
* FLASH_EPP_ERROR, FLASH_OPERATE_DONE or FLASH_OPERATE_TIMEOUT.
*/
flash_status_type flash_spim_mass_program(uint32_t address, uint8_t *buf, uint32_t cnt)
{
flash_status_type status = FLASH_OPERATE_DONE;
uint32_t index, temp_offset;
if(address >= FLASH_SPIM_START_ADDR)
{
temp_offset = cnt % 4;
if((temp_offset != 0) && (temp_offset != 2))
return status;
FLASH->ctrl3_bit.fprgm = TRUE;
for(index = 0; index < cnt / 4; index++)
{
*(__IO uint32_t*)(address + index * 4) = *(uint32_t*)(buf + index * 4);
/* wait for operation to be completed */
status = flash_spim_operation_wait_for(SPIM_PROGRAMMING_TIMEOUT);
if(status != FLASH_OPERATE_DONE)
return status;
}
if(temp_offset == 2)
{
*(__IO uint16_t*)(address + index * 4) = *(uint16_t*)(buf + index * 4);
/* wait for operation to be completed */
status = flash_spim_operation_wait_for(SPIM_PROGRAMMING_TIMEOUT);
}
/* disable the fprgm bit */
FLASH->ctrl3_bit.fprgm = FALSE;
/* dummy read */
flash_spim_dummy_read();
}
/* return the program status */
return status;
}
/**
* @brief enable security library function.
* @param pwd: slib password
* start_sector: security library start sector
* data_start_sector: security library d-bus area start sector
* end_sector: security library end sector
* @retval status: the returned value can be: FLASH_PROGRAM_ERROR,
* FLASH_EPP_ERROR, FLASH_OPERATE_DONE or FLASH_OPERATE_TIMEOUT.
*/
flash_status_type flash_slib_enable(uint32_t pwd, uint16_t start_sector, uint16_t data_start_sector, uint16_t end_sector)
{
uint32_t slib_range;
flash_status_type status = FLASH_OPERATE_DONE;
/*check range param limits*/
if((start_sector>=data_start_sector) || ((data_start_sector > end_sector) && \
(data_start_sector != 0x7FF)) || (start_sector > end_sector))
return FLASH_PROGRAM_ERROR;
/* unlock slib cfg register */
FLASH->slib_unlock = SLIB_UNLOCK_KEY;
while(FLASH->slib_misc_sts_bit.slib_ulkf==RESET);
slib_range = ((uint32_t)(data_start_sector << 11) & FLASH_SLIB_DATA_START_SECTOR) | \
((uint32_t)(end_sector << 22) & FLASH_SLIB_END_SECTOR) | \
(start_sector & FLASH_SLIB_START_SECTOR);
/* configure slib, set pwd and range */
FLASH->slib_set_pwd = pwd;
status = flash_operation_wait_for(PROGRAMMING_TIMEOUT);
if(status == FLASH_OPERATE_DONE)
{
FLASH->slib_set_range = slib_range;
status = flash_operation_wait_for(PROGRAMMING_TIMEOUT);
}
return status;
}
/**
* @brief disable slib when slib enabled.
* @param pwd: slib password
* @retval success or error
*/
error_status flash_slib_disable(uint32_t pwd)
{
flash_status_type status = FLASH_OPERATE_DONE;
/* write password to disable slib */
FLASH->slib_pwd_clr = pwd;
status = flash_operation_wait_for(ERASE_TIMEOUT);
if(status == FLASH_OPERATE_DONE)
{
if(FLASH->slib_misc_sts_bit.slib_pwd_ok)
return SUCCESS;
else
return ERROR;
}
return ERROR;
}
/**
* @brief get remaining count of slib(range: 256~0).
* @param none
* @retval uint32_t
*/
uint32_t flash_slib_remaining_count_get(void)
{
return (uint32_t)FLASH->slib_misc_sts_bit.slib_rcnt;
}
/**
* @brief get the slib state.
* @param none
* @retval SET or RESET
*/
flag_status flash_slib_state_get(void)
{
if(FLASH->slib_sts0_bit.slib_enf)
return SET;
else
return RESET;
}
/**
* @brief get the start sector of slib.
* @param none
* @retval uint16_t
*/
uint16_t flash_slib_start_sector_get(void)
{
return (uint16_t)FLASH->slib_sts1_bit.slib_ss;
}
/**
* @brief get the data start sector of slib.
* @param none
* @retval uint16_t
*/
uint16_t flash_slib_datastart_sector_get(void)
{
return (uint16_t)FLASH->slib_sts1_bit.slib_dat_ss;
}
/**
* @brief get the end sector of slib.
* @param none
* @retval uint16_t
*/
uint16_t flash_slib_end_sector_get(void)
{
return (uint16_t)FLASH->slib_sts1_bit.slib_es;
}
/**
* @brief flash crc calibration in main block.
* @param start_sector: crc calibration start sector number
* sector_cnt: crc calibration sector count
* @retval uint32: crc calibration result
*/
uint32_t flash_crc_calibrate(uint32_t start_sector, uint32_t sector_cnt)
{
FLASH->crc_ctrl_bit.crc_ss = start_sector;
FLASH->crc_ctrl_bit.crc_sn = sector_cnt;
FLASH->crc_ctrl_bit.crc_strt = TRUE;
flash_operation_wait_for(OPERATION_TIMEOUT);
return FLASH->crc_chkr;
}
/**
* @}
*/
#endif
/**
* @}
*/
/**
* @}
*/
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