diff options
Diffstat (limited to 'src/app/google_rcu/frm_vpk/frm_vpk_api/frm_vpk_hal_sflash.c')
| -rw-r--r-- | src/app/google_rcu/frm_vpk/frm_vpk_api/frm_vpk_hal_sflash.c | 109 |
1 files changed, 109 insertions, 0 deletions
diff --git a/src/app/google_rcu/frm_vpk/frm_vpk_api/frm_vpk_hal_sflash.c b/src/app/google_rcu/frm_vpk/frm_vpk_api/frm_vpk_hal_sflash.c new file mode 100644 index 0000000..00f0b86 --- /dev/null +++ b/src/app/google_rcu/frm_vpk/frm_vpk_api/frm_vpk_hal_sflash.c @@ -0,0 +1,109 @@ +/** +********************************************************************************************************* +* Copyright(c) 2021, Realtek Semiconductor Corporation. All rights reserved. +********************************************************************************************************** +* @file frm_vpk_hal_sflash.c +* @brief frm vpk flash API implementation +* @details +* @author chenjie +* @date 2021-01-09 +* @version v0.1 +********************************************************************************************************* +*/ + +/*============================================================================* + * Header Files + *============================================================================*/ +#include "frm_vpk_hal_sflash.h" +#include "flash_device.h" +#include "frm_vpk_log.h" +#include "dfu_flash.h" + +/*============================================================================* + * Macro Definitions + *============================================================================*/ + +/*============================================================================* + * Local Variables + *============================================================================*/ + +/*============================================================================* + * Global functions + *============================================================================*/ +/** + * @brief This function reads the content from a page to the buf. + * @param[in] addr - the start address of the page. + * @param[in] len - the length(in byte) of content needs to read out from the page. + * @param[out] buf - the start address of the buffer. + * @return none. + * @note Attention: Before calling the FLASH function, please check the power supply voltage of the chip. + * Only if the detected voltage is greater than the safe voltage value, the FLASH function can be called. + * Taking into account the factors such as power supply fluctuations, the safe voltage value needs to be greater + * than the minimum chip operating voltage. For the specific value, please make a reasonable setting according + * to the specific application and hardware circuit. + * + * Risk description: When the chip power supply voltage is relatively low, due to the unstable power supply, + * there may be a risk of error in the operation of the flash (especially for the write and erase operations. + * If an abnormality occurs, the firmware and user data may be rewritten, resulting in the final Product failure) + */ +void frm_vpk_flash_read_page(unsigned long addr, unsigned long len, unsigned char *buf) +{ + bool result = false; + result = flash_read_locked((addr | FLASH_OFFSET_TO_NO_CACHE), len, buf); + frm_vpk_print("[frm_vpk_flash_read_page]: addr=%x, len=%d, result=%d(1:success)", addr, len, + result); +} + +/** + * @brief This function writes the buffer's content to the flash. + * @param[in] addr - the start address of the area. + * @param[in] len - the length(in byte) of content needs to write into the flash. + * @param[in] buf - the start address of the content needs to write into. + * @return none. + * @note the function support cross-page writing,which means the len of buf can bigger than 256. + * + * Attention: Before calling the FLASH function, please check the power supply voltage of the chip. + * Only if the detected voltage is greater than the safe voltage value, the FLASH function can be called. + * Taking into account the factors such as power supply fluctuations, the safe voltage value needs to be greater + * than the minimum chip operating voltage. For the specific value, please make a reasonable setting according + * to the specific application and hardware circuit. + * + * Risk description: When the chip power supply voltage is relatively low, due to the unstable power supply, + * there may be a risk of error in the operation of the flash (especially for the write and erase operations. + * If an abnormality occurs, the firmware and user data may be rewritten, resulting in the final Product failure) + */ +void frm_vpk_flash_write_page(unsigned long addr, unsigned long len, unsigned char *buf) +{ + bool result = false; + + unlock_flash_bp_all(); + result = flash_write_locked((addr | FLASH_OFFSET_TO_NO_CACHE), len, buf); + lock_flash_bp(); + + frm_vpk_print("[frm_vpk_flash_write_page]: addr=%x, len=%d, result=%d(1:success)", addr, len, + result); +} + +/** + * @brief This function serves to erase a sector. + * @param[in] addr - the start address of the sector needs to erase. + * @return none. + * @note Attention: Before calling the FLASH function, please check the power supply voltage of the chip. + * Only if the detected voltage is greater than the safe voltage value, the FLASH function can be called. + * Taking into account the factors such as power supply fluctuations, the safe voltage value needs to be greater + * than the minimum chip operating voltage. For the specific value, please make a reasonable setting according + * to the specific application and hardware circuit. + * + * Risk description: When the chip power supply voltage is relatively low, due to the unstable power supply, + * there may be a risk of error in the operation of the flash (especially for the write and erase operations. + * If an abnormality occurs, the firmware and user data may be rewritten, resulting in the final Product failure) + */ +void frm_vpk_flash_erase_sector(unsigned long addr) +{ + bool result = false; + result = flash_erase_locked(FLASH_ERASE_SECTOR, addr); + frm_vpk_print("[frm_vpk_flash_erase_sector]: addr=%x, result=%d(1:success)", addr, result); +} + +/******************* (C) COPYRIGHT 2021 Realtek Semiconductor Corporation *****END OF FILE****/ + |