Flash Commands

Esp-idf commands can be executed using:

• idf.py, Located in: ./esp32/esp-idf/tools/idf.py/
• python, Located in: ./esp32/idf-tools/python_env/idf6.1_py3.13_env/bin/python
• esptool, Located in: ./esp32/idf-tools/python_env/idf6.1_py3.13_env/bin/esptool

idf.py to be invoked as:

$ idf.py <parameters>

esptool can be invoked in different ways:

$ esptool <parameters>
$ python -m esptool <parameters>

idf.py -p /dev/ttyACM0 flash
python -m esptool --chip esp32c3 -p /dev/ttyACM0 -b 460800 --before default-reset --after hard-reset write-flash --flash_mode dio --flash_size 4MB --flash-freq 80m 0x0 build/bootloader/bootloader.bin 0x8000 build/partition_table/partition-table.bin 0xd000 build/ota_data-initial.bin 0x10000 build/LCR-Meter.bin 0x250000 default.config

Where parameters are:

• write_flash
• -chip esp32c3 or esp32
• -p /dev/ttyACM0 or /dev/ttyUSB0
• -b 460800
• –before default_reset
• –after hard_reset
• –flash-mode dio
• –flash-size detect or 4MB
• –flash-freq 80m or 40m
• partition 1 = 0x0 build/bootloader/bootloader.bin
• partition 2 = 0x8000 build/partition_table/partition-table.bin
• partition 3 = 0xd000 build/ota_data_initial.bin
• partition 4 = 0x10000 build/LCR-Meter.bin

Use following examples to write to flash:

esptool -chip esp32c3 -p /dev/ttyACM0 -b 460800 --before default-reset --after hard-reset write-flash --flash-mode dio --flash-size detect --flash-freq 80m 0x10000 build/ESR-Meter.bin

python -m esptool --chip esp32c3 -p /dev/ttyACM0 -b 460800 --before default_reset --after hard-reset write-flash --flash-mode dio --flash-size 4MB --flash_freq 80m 0x10000 build/ESR-Meter.bin

python ../../esp-idf/components/esptool_py/esptool/esptool.py -p /dev/ttyUSB0 -b 460800 --before default-reset --after hard-reset --chip esp32  write-flash --flash_mode dio --flash-size detect --flash-freq 40m 0x00130000 build/thermometer.bin

Where parameters are:

• write_flash
• -chip esp32c3 or esp32
• -p /dev/ttyACM0 or /dev/ttyUSB0
• -b 460800
• –before default_reset
• –after hard-reset
• –flash-mode dio
• –flash-size detect or 4MB
• –flash-freq 80m or 40m
• 0x10000 build/ESR-Meter.bin

esptool --port /dev/ttyACM0  write-flash --flash-mode qio  0x250000 default.config

esptool --port /dev/ttyACM0 -b 460800 --before default-reset --chip esp32c3 read-flash 0x250000 4096 downloaded.config