mirror of
https://github.com/pelgraine/Meck.git
synced 2026-03-28 17:42:44 +01:00
65 lines
2.2 KiB
Python
65 lines
2.2 KiB
Python
"""
|
|
PlatformIO post-build script: merge bootloader + partitions + firmware
|
|
into a single flashable binary.
|
|
|
|
Output: .pio/build/<env>/firmware_merged.bin
|
|
Flash: esptool.py --chip esp32s3 write_flash 0x0 firmware_merged.bin
|
|
|
|
Place this file in the project root alongside platformio.ini.
|
|
Add to each environment (or the base section):
|
|
extra_scripts = post:merge_firmware.py
|
|
"""
|
|
|
|
Import("env")
|
|
|
|
def merge_bin(source, target, env):
|
|
import subprocess, os
|
|
|
|
build_dir = env.subst("$BUILD_DIR")
|
|
env_name = env.subst("$PIOENV")
|
|
|
|
bootloader = os.path.join(build_dir, "bootloader.bin")
|
|
partitions = os.path.join(build_dir, "partitions.bin")
|
|
firmware = os.path.join(build_dir, "firmware.bin")
|
|
output = os.path.join(build_dir, "firmware_merged.bin")
|
|
|
|
# Verify all inputs exist
|
|
for f in [bootloader, partitions, firmware]:
|
|
if not os.path.isfile(f):
|
|
print(f"[merge] WARNING: {f} not found, skipping merge")
|
|
return
|
|
|
|
# Read flash settings from board config
|
|
flash_mode = env.BoardConfig().get("build.flash_mode", "qio")
|
|
flash_freq = env.BoardConfig().get("build.f_flash", "80000000L").rstrip("L")
|
|
flash_size = env.BoardConfig().get("upload.flash_size", "16MB")
|
|
mcu = env.BoardConfig().get("build.mcu", "esp32s3")
|
|
|
|
# Convert numeric frequency to esptool format
|
|
freq_map = {"80000000": "80m", "40000000": "40m", "26000000": "26m", "20000000": "20m"}
|
|
flash_freq_str = freq_map.get(flash_freq, "80m")
|
|
|
|
cmd = [
|
|
env.subst("$PYTHONEXE"), "-m", "esptool",
|
|
"--chip", mcu,
|
|
"merge_bin",
|
|
"-o", output,
|
|
"--flash_mode", flash_mode,
|
|
"--flash_freq", flash_freq_str,
|
|
"--flash_size", flash_size,
|
|
"0x0", bootloader,
|
|
"0x8000", partitions,
|
|
"0x10000", firmware,
|
|
]
|
|
|
|
print(f"\n[merge] Creating merged firmware for {env_name}...")
|
|
print(f"[merge] {' '.join(cmd[-6:])}")
|
|
|
|
result = subprocess.run(cmd, capture_output=True, text=True)
|
|
if result.returncode == 0:
|
|
size_kb = os.path.getsize(output) / 1024
|
|
print(f"[merge] OK: {output} ({size_kb:.0f} KB)")
|
|
else:
|
|
print(f"[merge] FAILED: {result.stderr}")
|
|
|
|
env.AddPostAction("$BUILD_DIR/firmware.bin", merge_bin) |