ddfc8bd0fb
Imported from GitHub PR https://github.com/tensorflow/tensorflow/pull/45678 ``` tensorflow/lite/micro/tools/make/downloads/pigweed/pw_presubmit/py/pw_presubmit/format_code.py tensorflow/lite/micro/ -e "\.inc" -e "\.py" --fix ``` Copybara import of the project: -- 9372cbff4bd4c65fa269c9de1e09208106f030c7 by Advait Jain <advaitjain@users.noreply.github.com>: clangformat all the files under the micro directory. ``` tensorflow/lite/micro/tools/make/downloads/pigweed/pw_presubmit/py/pw_presubmit/format_code.py tensorflow/lite/micro/ -e "\.inc" -e "\.py" --fix ``` COPYBARA_INTEGRATE_REVIEW=https://github.com/tensorflow/tensorflow/pull/45678 from advaitjain:clang-format 9372cbff4bd4c65fa269c9de1e09208106f030c7 PiperOrigin-RevId: 347642692 Change-Id: I6eac70bde20818f3937b55db9a9170ca8b5ce793
54 lines
2.4 KiB
C++
54 lines
2.4 KiB
C++
/* Copyright 2018 The TensorFlow Authors. All Rights Reserved.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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==============================================================================*/
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// Reference implementation of the DebugLog() function that's required for a
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// platform to support the TensorFlow Lite for Microcontrollers library. This is
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// the only function that's absolutely required to be available on a target
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// device, since it's used for communicating test results back to the host so
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// that we can verify the implementation is working correctly.
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// It's designed to be as easy as possible to supply an implementation though.
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// On platforms that have a POSIX stack or C library, it can be written as a
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// single call to `fprintf(stderr, "%s", s)` to output a string to the error
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// stream of the console, but if there's no OS or C library available, there's
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// almost always an equivalent way to write out a string to some serial
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// interface that can be used instead. For example on Arm M-series MCUs, calling
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// the `bkpt #0xAB` assembler instruction will output the string in r1 to
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// whatever debug serial connection is available. If you're running mbed, you
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// can do the same by creating `Serial pc(USBTX, USBRX)` and then calling
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// `pc.printf("%s", s)`.
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// To add an equivalent function for your own platform, create your own
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// implementation file, and place it in a subfolder with named after the OS
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// you're targeting. For example, see the Cortex M bare metal version in
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// tensorflow/lite/micro/bluepill/debug_log.cc or the mbed one on
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// tensorflow/lite/micro/mbed/debug_log.cc.
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#include "tensorflow/lite/micro/debug_log.h"
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// These are headers from Ambiq's Apollo3 SDK.
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#include "am_bsp.h" // NOLINT
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#include "am_util.h" // NOLINT
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extern "C" void DebugLog(const char* s) {
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#ifndef TF_LITE_STRIP_ERROR_STRINGS
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static bool is_initialized = false;
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if (!is_initialized) {
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am_bsp_itm_printf_enable();
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is_initialized = true;
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}
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am_util_stdio_printf("%s", s);
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#endif
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}
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