#!/usr/bin/env bash
set -euo pipefail

if [ "$#" -ne 1 ]; then
    echo "Usage: $0 /dev/ttyUSB0" >&2
    exit 2
fi

radick_port="$1"
firmware_dir="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"

echo "Keep the RD-03D external 5 V supply OFF while flashing."

exec python3 -m esptool \
    --chip esp32s3 \
    --port "$radick_port" \
    --baud 460800 \
    --before default_reset \
    --after hard_reset \
    write_flash \
    --flash_mode dio \
    --flash_freq 80m \
    --flash_size 4MB \
    0x0 "$firmware_dir/bootloader.bin" \
    0x8000 "$firmware_dir/partition-table.bin" \
    0x10000 "$firmware_dir/radick.bin"