blob: 8dcf66fb7bd8da88e8dd25dfb263c6950f9f1e6e [file] [log] [blame]
// Copyright 2020 The Pigweed Authors
// Licensed under the Apache License, Version 2.0 (the "License"); you may not
// use this file except in compliance with the License. You may obtain a copy of
// the License at
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
// WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
// License for the specific language governing permissions and limitations under
// the License.
#pragma once
#include "pw_bytes/span.h"
#include "pw_status/status.h"
#include "pw_stream/stream.h"
namespace pw::hdlc {
// Writes an HDLC unnumbered information frame (UI-frame) to the provided
// writer. The complete frame contains the following:
// - HDLC flag byte (0x7e)
// - Address
// - UI-frame control (metadata) byte
// - Payload (0 or more bytes)
// - Frame check sequence (CRC-32)
// - HDLC flag byte (0x7e)
Status WriteUIFrame(uint64_t address,
ConstByteSpan payload,
stream::Writer& writer);
} // namespace pw::hdlc