ESP32: Difference between revisions

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* Flashing the Bootloader:
== Flashing the Bootloader ==


⚫
invalid header: 0xffffffff

⚫
Detected overlap at address: 0x8000 for file:

To flash all build output, run 'make flash' or:
python /home/virtpc/esp/esp-idf/components/esptool_py/esptool/esptool.py --chip esp32 --port COM4 --baud 921600 --before default_reset --after hard_reset write_flash -z --flash_mode dio - flash_freq 40m --flash_size detect
0x1000 /home/virtpc/esp/esp-idf/examples/system/ota/native_ota_example/build/bootloader/bootloader.bin
0x10000 /home/virtpc/esp/esp-idf/examples/system/ota/native_ota_example/build/sntp.bin
0x8000 /home/virtpc/esp/esp-idf/examples/system/ota/native_ota_example/build/partitions_two_ota.bin

Here you can see that 3 bin files are written to the following addresses:
0x1000 bootloader.bin,
0x8000 partitions_two_ota.bin.
0x10000 native_ota_example.bin - application,


If you get this error in console, Likely bootloader is corrupt or erased:
⚫
invalid header: 0xffffffff


Download new bootloader file from this Zip file:
https://docs.espressif.com/projects/esp-at/en/release-v2.4.0.0/esp32c3/AT_Binary_Lists/ESP32-C3_AT_binaries.html
https://docs.espressif.com/projects/esp-at/en/release-v2.4.0.0/esp32c3/AT_Binary_Lists/ESP32-C3_AT_binaries.html


Install the bootloader at 0x0 location:
esptool.py --port /dev/ttyACM0 --baud 9600 --before default_reset --after hard_reset write_flash -z --flash_mode dio --flash_size detect 0x0 bootloader.bin
esptool.py --port /dev/ttyACM0 --baud 9600 --before default_reset --after hard_reset write_flash -z --flash_mode dio --flash_size detect 0x0 bootloader.bin




* If you get this error while installing both bootloader & the Application files:
⚫
E (540) esp_image: Image length 1339808 doesn't fit in partition length 1114112
⚫
Detected overlap at address: 0x8000 for file:
⚫
;31mE (541) boot: Factory app partition is not bootable

⚫
E (543) boot: No bootable app partitions in the partition table
You need to give proper space between the files:
0x1000 bootloader.bin 0x8000 esp32-idf4-20191220-v1.12.bin


* If you see these error in Console:
⚫
E (540) esp_image: Image length 1339808 doesn't fit in partition length 1114112
⚫
;31mE (541) boot: Factory app partition is not bootable
⚫
E (543) boot: No bootable app partitions in the partition table


Or:
⚫
E (54) flash_parts: partition 0 invalid magic number 0x6e9
⚫
E (60) boot: Failed to verify partition table
⚫
E (65) boot: load partition table error!


Most likely the Bootloader is installed but there is no application installed or is not bootable.
⚫
E (54) flash_parts: partition 0 invalid magic number 0x6e9
⚫
E (60) boot: Failed to verify partition table
⚫
E (65) boot: load partition table error!


= Projects =
= Projects =
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