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- .. code-block:: none
- espefuse.py -p PORT summary
- Connecting........__
- Detecting chip type... ESP32
- espefuse.py v3.1-dev
- EFUSE_NAME (Block) Description = [Meaningful Value] [Readable/Writeable] (Hex Value)
- ----------------------------------------------------------------------------------------
- Calibration fuses:
- BLK3_PART_RESERVE (BLOCK0): BLOCK3 partially served for ADC calibration data = True R/W (0b1)
- ADC_VREF (BLOCK0): Voltage reference calibration = 1114 R/W (0b00010)
- ADC1_TP_LOW (BLOCK3): ADC1 150mV reading = 346 R/W (0b0010001)
- ADC1_TP_HIGH (BLOCK3): ADC1 850mV reading = 3285 R/W (0b000000101)
- ADC2_TP_LOW (BLOCK3): ADC2 150mV reading = 449 R/W (0b0000111)
- ADC2_TP_HIGH (BLOCK3): ADC2 850mV reading = 3362 R/W (0b111110101)
- Config fuses:
- XPD_SDIO_FORCE (BLOCK0): Ignore MTDI pin (GPIO12) for VDD_SDIO on reset = False R/W (0b0)
- XPD_SDIO_REG (BLOCK0): If XPD_SDIO_FORCE, enable VDD_SDIO reg on reset = False R/W (0b0)
- XPD_SDIO_TIEH (BLOCK0): If XPD_SDIO_FORCE & XPD_SDIO_REG = 1.8V R/W (0b0)
- CLK8M_FREQ (BLOCK0): 8MHz clock freq override = 53 R/W (0x35)
- SPI_PAD_CONFIG_CLK (BLOCK0): Override SD_CLK pad (GPIO6/SPICLK) = 0 R/W (0b00000)
- SPI_PAD_CONFIG_Q (BLOCK0): Override SD_DATA_0 pad (GPIO7/SPIQ) = 0 R/W (0b00000)
- SPI_PAD_CONFIG_D (BLOCK0): Override SD_DATA_1 pad (GPIO8/SPID) = 0 R/W (0b00000)
- SPI_PAD_CONFIG_HD (BLOCK0): Override SD_DATA_2 pad (GPIO9/SPIHD) = 0 R/W (0b00000)
- SPI_PAD_CONFIG_CS0 (BLOCK0): Override SD_CMD pad (GPIO11/SPICS0) = 0 R/W (0b00000)
- DISABLE_SDIO_HOST (BLOCK0): Disable SDIO host = False R/W (0b0)
- Efuse fuses:
- WR_DIS (BLOCK0): Efuse write disable mask = 0 R/W (0x0000)
- RD_DIS (BLOCK0): Efuse read disable mask = 0 R/W (0x0)
- CODING_SCHEME (BLOCK0): Efuse variable block length scheme
- = 3/4 (BLK1-3 len=192 bits) R/W (0b01)
- KEY_STATUS (BLOCK0): Usage of efuse block 3 (reserved) = False R/W (0b0)
- Identity fuses:
- MAC (BLOCK0): Factory MAC Address
- = 84:0d:8e:18:8e:44 (CRC 0xad OK) R/W
- MAC_CRC (BLOCK0): CRC8 for factory MAC address = 173 R/W (0xad)
- CHIP_VER_REV1 (BLOCK0): Silicon Revision 1 = True R/W (0b1)
- CHIP_VER_REV2 (BLOCK0): Silicon Revision 2 = False R/W (0b0)
- CHIP_VERSION (BLOCK0): Reserved for future chip versions = 2 R/W (0b10)
- CHIP_PACKAGE (BLOCK0): Chip package identifier = 0 R/W (0b000)
- MAC_VERSION (BLOCK3): Version of the MAC field = 0 R/W (0x00)
- Security fuses:
- FLASH_CRYPT_CNT (BLOCK0): Flash encryption mode counter = 0 R/W (0b0000000)
- UART_DOWNLOAD_DIS (BLOCK0): Disable UART download mode (ESP32 rev3 only) = False R/W (0b0)
- FLASH_CRYPT_CONFIG (BLOCK0): Flash encryption config (key tweak bits) = 0 R/W (0x0)
- CONSOLE_DEBUG_DISABLE (BLOCK0): Disable ROM BASIC interpreter fallback = True R/W (0b1)
- ABS_DONE_0 (BLOCK0): Secure boot V1 is enabled for bootloader image = False R/W (0b0)
- ABS_DONE_1 (BLOCK0): Secure boot V2 is enabled for bootloader image = False R/W (0b0)
- JTAG_DISABLE (BLOCK0): Disable JTAG = False R/W (0b0)
- DISABLE_DL_ENCRYPT (BLOCK0): Disable flash encryption in UART bootloader = False R/W (0b0)
- DISABLE_DL_DECRYPT (BLOCK0): Disable flash decryption in UART bootloader = False R/W (0b0)
- DISABLE_DL_CACHE (BLOCK0): Disable flash cache in UART bootloader = False R/W (0b0)
- BLOCK1 (BLOCK1): Flash encryption key
- = 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
- BLOCK2 (BLOCK2): Secure boot key
- = 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
- BLOCK3 (BLOCK3): Variable Block 3
- = 00 00 00 00 00 00 00 00 00 00 00 00 91 02 87 fa 00 00 00 00 00 00 00 00 R/W
- Flash voltage (VDD_SDIO) determined by GPIO12 on reset (High for 1.8V, Low/NC for 3.3V).
- To get a dump for all eFuse registers.
- .. code-block:: none
- espefuse.py -p PORT dump
- Connecting........_
- Detecting chip type... ESP32
- BLOCK0 ( ) [0 ] read_regs: 00000000 8e188e44 00ad840d 0000e000 00000235 00000000 00000005
- BLOCK1 (flash_encryption) [1 ] read_regs: 00000000 00000000 00000000 00000000 00000000 00000000
- BLOCK2 (secure_boot_v1 s) [2 ] read_regs: 00000000 00000000 00000000 00000000 00000000 00000000
- BLOCK3 ( ) [3 ] read_regs: 00000000 00000000 00000000 fa870291 00000000 00000000
- espefuse.py v3.1-dev
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