micropython-lib/micropython/espflash/example.py

30 wiersze
912 B
Python

import espflash
from machine import Pin
from machine import UART
if __name__ == "__main__":
reset = Pin(3, Pin.OUT)
gpio0 = Pin(2, Pin.OUT)
uart = UART(1, 115200, tx=Pin(8), rx=Pin(9), timeout=350)
md5sum = b"9a6cf1257769c9f1af08452558e4d60e"
path = "NINA_W102-v1.5.0-Nano-RP2040-Connect.bin"
esp = espflash.ESPFlash(reset, gpio0, uart)
# Enter bootloader download mode, at 115200
esp.bootloader()
# Can now chage to higher/lower baudrate
esp.set_baudrate(921600)
# Must call this first before any flash functions.
esp.flash_attach()
# Read flash size
size = esp.flash_read_size()
# Configure flash parameters.
esp.flash_config(size)
# Write firmware image from internal storage.
esp.flash_write_file(path)
# Compares file and flash MD5 checksum.
esp.flash_verify_file(path, md5sum)
# Resets the ESP32 chip.
esp.reboot()