Storage
NVS Encryption
For SoCs with the HMAC peripheral (
SOC_HMAC_SUPPORTED), turning on Flash Encryption will no longer automatically turn on NVS Encryption.You will need to explicitly turn on NVS encryption and select the required scheme (flash encryption-based or HMAC peripheral-based). You can select the HMAC peripheral-based scheme (CONFIG_NVS_SEC_KEY_PROTECTION_SCHEME), even if flash encryption is not enabled.
SoCs without the HMAC peripheral will still automatically turn on NVS encryption when flash encryption is enabled.
SPI Flash Driver
XMC-C series flash suspend support has been removed. According to feedback from the flash manufacturer, in some situations the XMC-C flash would require a 1ms interval between resume and next command. This is too long for a software request. Based on the above reason, in order to use suspend safely, we decide to remove flash suspend support from XMC-C series. But you can still force enable it via CONFIG_SPI_FLASH_FORCE_ENABLE_XMC_C_SUSPEND. If you have any questions, please contact espressif business support.