issue while going back to normal mode from encryption in development mode on ESP32C6

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VivekBorse
Posts: 4
Joined: Thu Nov 09, 2023 4:08 pm

issue while going back to normal mode from encryption in development mode on ESP32C6

Postby VivekBorse » Thu Nov 09, 2023 4:34 pm

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  1. Hi,
  2. I followed the procedure to flash encryption given in https://docs.espressif.com/projects/esp-idf/en/latest/esp32c6/security/flash-encryption.html and used the sample example in ESP-IDF to test the flash encryption in development mode.
  3. for 1st run I tried without enabling the encryption setting, application work and showed encryption status to not encrypted flash.
  4. for 2nd run I enable encryption and check NVS enable setting and flashed the application to ESP32C6 board. for this run I check the encryption status changed to encrypted but then board started rebooting due core panic and it showed issue while running following lines in the sample example line 158
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  1.     printf("Reading with esp_flash_read:\n");
  2.     ESP_ERROR_CHECK(esp_flash_read(NULL, read_data, partition->address, data_size));
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I did not able to capture the error reason but it is related NVS keys, so for this I tried to diable all the setting of encryption and rebuild my application so I can revert back to my not encrypted state. After successful build and flashing on ESP log I am getting continuously.
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  1. invalid header: 0xd424bf0d
  2. invalid header: 0xd424bf0d
  3. invalid header: 0xd424bf0d
  4. invalid header: 0xd424bf0d
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after this I tried erasing the flash but for that operation I am getting the following error
A fatal error occurred: Active security features detected, erasing flash is disabled as a safety measure. Use --force to override, please use with caution, otherwise it may brick your device!
I tried to erase from esptool but I am getting the same error above mention. due to this I am not able to use the ESP32C6 board for other application evaluations. Please me resolving in this as soon as possible.
I attached my application for reference.
also attaching the espefuse summary below
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  1. espefuse.py -p COM13 summary
  2. espefuse.py v4.7.dev2
  3. Connecting....
  4. Detecting chip type... ESP32-C6
  5.  
  6. === Run "summary" command ===
  7. EFUSE_NAME (Block) Description  = [Meaningful Value] [Readable/Writeable] (Hex Value)
  8. ----------------------------------------------------------------------------------------
  9. Calibration fuses:
  10. TEMP_CALIB (BLOCK2)                                Temperature calibration data                       = -12.5 R/W (0b101111101)
  11. OCODE (BLOCK2)                                     ADC OCode                                          = 86 R/W (0x56)
  12. ADC1_INIT_CODE_ATTEN0 (BLOCK2)                     ADC1 init code at atten0                           = -60 R/W (0b1000001111)
  13. ADC1_INIT_CODE_ATTEN1 (BLOCK2)                     ADC1 init code at atten1                           = -72 R/W (0b1000010010)
  14. ADC1_INIT_CODE_ATTEN2 (BLOCK2)                     ADC1 init code at atten2                           = -80 R/W (0b1000010100)
  15. ADC1_INIT_CODE_ATTEN3 (BLOCK2)                     ADC1 init code at atten3                           = -120 R/W (0b1000011110)
  16. ADC1_CAL_VOL_ATTEN0 (BLOCK2)                       ADC1 calibration voltage at atten0                 = -176 R/W (0b1000101100)
  17. ADC1_CAL_VOL_ATTEN1 (BLOCK2)                       ADC1 calibration voltage at atten1                 = 20 R/W (0b0000000101)
  18. ADC1_CAL_VOL_ATTEN2 (BLOCK2)                       ADC1 calibration voltage at atten2                 = -380 R/W (0b1001011111)
  19. ADC1_CAL_VOL_ATTEN3 (BLOCK2)                       ADC1 calibration voltage at atten3                 = -624 R/W (0b1010011100)
  20. ADC1_INIT_CODE_ATTEN0_CH0 (BLOCK2)                 ADC1 init code at atten0 ch0                       = 0 R/W (0x8)
  21. ADC1_INIT_CODE_ATTEN0_CH1 (BLOCK2)                 ADC1 init code at atten0 ch1                       = 0 R/W (0x8)
  22. ADC1_INIT_CODE_ATTEN0_CH2 (BLOCK2)                 ADC1 init code at atten0 ch2                       = 0 R/W (0x8)
  23. ADC1_INIT_CODE_ATTEN0_CH3 (BLOCK2)                 ADC1 init code at atten0 ch3                       = 0 R/W (0x8)
  24. ADC1_INIT_CODE_ATTEN0_CH4 (BLOCK2)                 ADC1 init code at atten0 ch4                       = 0 R/W (0x8)
  25. ADC1_INIT_CODE_ATTEN0_CH5 (BLOCK2)                 ADC1 init code at atten0 ch5                       = 0 R/W (0x8)
  26. ADC1_INIT_CODE_ATTEN0_CH6 (BLOCK2)                 ADC1 init code at atten0 ch6                       = 0 R/W (0x8)
  27.  
  28. Config fuses:
  29. WR_DIS (BLOCK0)                                    Disable programming of individual eFuses           = 8388864 R/W (0x00800100)
  30. RD_DIS (BLOCK0)                                    Disable reading from BlOCK4-10                     = 1 R/W (0b0000001)
  31. SWAP_UART_SDIO_EN (BLOCK0)                         Represents whether pad of uart and sdio is swapped = False R/W (0b0)
  32.                                                     or not. 1: swapped. 0: not swapped
  33. DIS_ICACHE (BLOCK0)                                Represents whether icache is disabled or enabled.  = False R/W (0b0)
  34.                                                    1: disabled. 0: enabled
  35. DIS_TWAI (BLOCK0)                                  Represents whether TWAI function is disabled or en = False R/W (0b0)
  36.                                                    abled. 1: disabled. 0: enabled
  37. DIS_DIRECT_BOOT (BLOCK0)                           Represents whether direct boot mode is disabled or = True R/W (0b1)
  38.                                                     enabled. 1: disabled. 0: enabled
  39. UART_PRINT_CONTROL (BLOCK0)                        Set the default UARTboot message output mode       = Enable R/W (0b00)
  40. BLOCK_USR_DATA (BLOCK3)                            User data
  41.    = 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
  42. BLOCK_SYS_DATA2 (BLOCK10)                          System data part 2 (reserved)
  43.    = 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
  44.  
  45. Flash fuses:
  46. FLASH_TPUW (BLOCK0)                                Represents the flash waiting time after power-up;  = 0 R/W (0x0)
  47.                                                    in unit of ms. When the value less than 15; the wa
  48.                                                    iting time is the programmed value. Otherwise; the
  49.                                                     waiting time is 2 times the programmed value
  50. FORCE_SEND_RESUME (BLOCK0)                         Represents whether ROM code is forced to send a re = False R/W (0b0)
  51.                                                    sume command during SPI boot. 1: forced. 0:not for
  52.                                                    ced
  53. FLASH_CAP (BLOCK1)                                                                                    = 0 R/W (0b000)
  54. FLASH_TEMP (BLOCK1)                                                                                   = 0 R/W (0b00)
  55. FLASH_VENDOR (BLOCK1)                                                                                 = 0 R/W (0b000)
  56.  
  57. Identity fuses:
  58. DISABLE_WAFER_VERSION_MAJOR (BLOCK0)               Disables check of wafer version major              = False R/W (0b0)
  59. DISABLE_BLK_VERSION_MAJOR (BLOCK0)                 Disables check of blk version major                = False R/W (0b0)
  60. WAFER_VERSION_MINOR (BLOCK1)                                                                          = 0 R/W (0x0)
  61. WAFER_VERSION_MAJOR (BLOCK1)                                                                          = 0 R/W (0b00)
  62. PKG_VERSION (BLOCK1)                               Package version                                    = 0 R/W (0b000)
  63. BLK_VERSION_MINOR (BLOCK1)                         BLK_VERSION_MINOR of BLOCK2                        = 1 R/W (0b001)
  64. BLK_VERSION_MAJOR (BLOCK1)                         BLK_VERSION_MAJOR of BLOCK2                        = 0 R/W (0b00)
  65. OPTIONAL_UNIQUE_ID (BLOCK2)                        Optional unique 128-bit ID
  66.    = 8a 8e e1 f0 d0 2c 1e c0 e2 f5 5d 4e cb 97 62 18 R/W
  67.  
  68. Jtag fuses:
  69. JTAG_SEL_ENABLE (BLOCK0)                           Represents whether the selection between usb_to_jt = False R/W (0b0)
  70.                                                    ag and pad_to_jtag through strapping gpio15 when b
  71.                                                    oth EFUSE_DIS_PAD_JTAG and EFUSE_DIS_USB_JTAG are
  72.                                                    equal to 0 is enabled or disabled. 1: enabled. 0:
  73.                                                    disabled
  74. SOFT_DIS_JTAG (BLOCK0)                             Represents whether JTAG is disabled in soft way. O = 0 R/W (0b000)
  75.                                                    dd number: disabled. Even number: enabled
  76. DIS_PAD_JTAG (BLOCK0)                              Represents whether JTAG is disabled in the hard wa = True R/W (0b1)
  77.                                                    y(permanently). 1: disabled. 0: enabled
  78.  
  79. Mac fuses:
  80. MAC (BLOCK1)                                       MAC address
  81.    = 40:4c:ca:43:be:3c (OK) R/W
  82. MAC_EXT (BLOCK1)                                   Stores the extended bits of MAC address            = ff:fe (OK) R/W
  83. CUSTOM_MAC (BLOCK3)                                Custom MAC
  84.    = 00:00:00:00:00:00 (OK) R/W
  85. MAC_EUI64 (BLOCK1)                                 calc MAC_EUI64 = MAC[0]:MAC[1]:MAC[2]:MAC_EXT[0]:M
  86.    = 40:4c:ca:ff:fe:43:be:3c (OK) R/W
  87.                                                    AC_EXT[1]:MAC[3]:MAC[4]:MAC[5]
  88.  
  89. Security fuses:
  90. DIS_DOWNLOAD_ICACHE (BLOCK0)                       Represents whether icache is disabled or enabled i = True R/W (0b1)
  91.                                                    n Download mode. 1: disabled. 0: enabled
  92. DIS_FORCE_DOWNLOAD (BLOCK0)                        Represents whether the function that forces chip i = False R/W (0b0)
  93.                                                    nto download mode is disabled or enabled. 1: disab
  94.                                                    led. 0: enabled
  95. SPI_DOWNLOAD_MSPI_DIS (BLOCK0)                     Represents whether SPI0 controller during boot_mod = False R/W (0b0)
  96.                                                    e_download is disabled or enabled. 1: disabled. 0:
  97.                                                     enabled
  98. DIS_DOWNLOAD_MANUAL_ENCRYPT (BLOCK0)               Represents whether flash encrypt function is disab = False R/W (0b0)
  99.                                                    led or enabled(except in SPI boot mode). 1: disabl
  100.                                                    ed. 0: enabled
  101. SPI_BOOT_CRYPT_CNT (BLOCK0)                        Enables flash encryption when 1 or 3 bits are set  = Enable R/W (0b001)
  102.                                                    and disables otherwise
  103. SECURE_BOOT_KEY_REVOKE0 (BLOCK0)                   Revoke 1st secure boot key                         = False R/W (0b0)
  104. SECURE_BOOT_KEY_REVOKE1 (BLOCK0)                   Revoke 2nd secure boot key                         = False R/W (0b0)
  105. SECURE_BOOT_KEY_REVOKE2 (BLOCK0)                   Revoke 3rd secure boot key                         = False R/W (0b0)
  106. KEY_PURPOSE_0 (BLOCK0)                             Represents the purpose of Key0                     = XTS_AES_128_KEY R/- (0x4)
  107. KEY_PURPOSE_1 (BLOCK0)                             Represents the purpose of Key1                     = USER R/W (0x0)
  108. KEY_PURPOSE_2 (BLOCK0)                             Represents the purpose of Key2                     = USER R/W (0x0)
  109. KEY_PURPOSE_3 (BLOCK0)                             Represents the purpose of Key3                     = USER R/W (0x0)
  110. KEY_PURPOSE_4 (BLOCK0)                             Represents the purpose of Key4                     = USER R/W (0x0)
  111. KEY_PURPOSE_5 (BLOCK0)                             Represents the purpose of Key5                     = USER R/W (0x0)
  112. SEC_DPA_LEVEL (BLOCK0)                             Represents the spa secure level by configuring the = 0 R/W (0b00)
  113.                                                     clock random divide mode
  114. CRYPT_DPA_ENABLE (BLOCK0)                          Represents whether anti-dpa attack is enabled. 1:e = False R/W (0b0)
  115.                                                    nabled. 0: disabled
  116. SECURE_BOOT_EN (BLOCK0)                            Represents whether secure boot is enabled or disab = False R/W (0b0)
  117.                                                    led. 1: enabled. 0: disabled
  118. SECURE_BOOT_AGGRESSIVE_REVOKE (BLOCK0)             Represents whether revoking aggressive secure boot = False R/W (0b0)
  119.                                                     is enabled or disabled. 1: enabled. 0: disabled
  120. DIS_DOWNLOAD_MODE (BLOCK0)                         Represents whether Download mode is disabled or en = False R/W (0b0)
  121.                                                    abled. 1: disabled. 0: enabled
  122. ENABLE_SECURITY_DOWNLOAD (BLOCK0)                  Represents whether security download is enabled or = False R/W (0b0)
  123.                                                     disabled. 1: enabled. 0: disabled
  124. SECURE_VERSION (BLOCK0)                            Represents the version used by ESP-IDF anti-rollba = 0 R/W (0x0000)
  125.                                                    ck feature
  126. SECURE_BOOT_DISABLE_FAST_WAKE (BLOCK0)             Represents whether FAST VERIFY ON WAKE is disabled = False R/W (0b0)
  127.                                                     or enabled when Secure Boot is enabled. 1: disabl
  128.                                                    ed. 0: enabled
  129. BLOCK_KEY0 (BLOCK4)
  130.   Purpose: XTS_AES_128_KEY
  131.     Key0 or user data
  132.    = ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? ?? -/-
  133. BLOCK_KEY1 (BLOCK5)
  134.   Purpose: USER
  135.                Key1 or user data
  136.    = 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
  137. BLOCK_KEY2 (BLOCK6)
  138.   Purpose: USER
  139.                Key2 or user data
  140.    = 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
  141. BLOCK_KEY3 (BLOCK7)
  142.   Purpose: USER
  143.                Key3 or user data
  144.    = 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
  145. BLOCK_KEY4 (BLOCK8)
  146.   Purpose: USER
  147.                Key4 or user data
  148.    = 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
  149. BLOCK_KEY5 (BLOCK9)
  150.   Purpose: USER
  151.                Key5 or user data
  152.    = 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 R/W
  153.  
  154. Usb fuses:
  155. DIS_USB_JTAG (BLOCK0)                              Represents whether the function of usb switch to j = True R/W (0b1)
  156.                                                    tag is disabled or enabled. 1: disabled. 0: enable
  157.                                                    d
  158. DIS_USB_SERIAL_JTAG (BLOCK0)                       Represents whether USB-Serial-JTAG is disabled or  = False R/W (0b0)
  159.                                                    enabled. 1: disabled. 0: enabled
  160. USB_EXCHG_PINS (BLOCK0)                            Represents whether the D+ and D- pins is exchanged = False R/W (0b0)
  161.                                                    . 1: exchanged. 0: not exchanged
  162. DIS_USB_SERIAL_JTAG_ROM_PRINT (BLOCK0)             Represents whether print from USB-Serial-JTAG is d = False R/W (0b0)
  163.                                                    isabled or enabled. 1: disabled. 0: enabled
  164. DIS_USB_SERIAL_JTAG_DOWNLOAD_MODE (BLOCK0)         Represents whether the USB-Serial-JTAG download fu = False R/W (0b0)
  165.                                                    nction is disabled or enabled. 1: disabled. 0: ena
  166.                                                    bled
  167.  
  168. Vdd fuses:
  169. VDD_SPI_AS_GPIO (BLOCK0)                           Represents whether vdd spi pin is functioned as gp = False R/W (0b0)
  170.                                                    io. 1: functioned. 0: not functioned
  171.  
  172. Wdt fuses:
  173. WDT_DELAY_SEL (BLOCK0)                             Represents whether RTC watchdog timeout threshold  = 0 R/W (0b00)
  174.                                                    is selected at startup. 1: selected. 0: not select
  175.                                                    ed
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