Method command

tools/xsbug/esptool.js:806–818

(opcode, payload = new Uint8Array, checksum = 0)

		return result;
	}
	async command(opcode, payload = new Uint8Array, checksum = 0) {
		const cmd = new Uint8Array(8 + payload.byteLength);
		cmd[0] = 0;		// request
		cmd[1] = opcode;
		cmd[2] = payload.byteLength & 255;
		cmd[3] = (payload.byteLength >> 8) & 255;
		cmd[4] = checksum & 255;
		cmd[5] = (checksum >> 8) & 255;
		cmd[6] = (checksum >> 16) & 255;
		cmd[7] = (checksum >> 24) & 255;
		cmd.set(new Uint8Array(payload), 8);
		this.writeSLIP(cmd.buffer);
	}
}
Object.freeze(EspTool.prototype);