SerialWireOutput.cpp

00001 /* mbed Microcontroller Library
00002  * Copyright (c) 2017-2019 ARM Limited
00003  * SPDX-License-Identifier: Apache-2.0
00004  *
00005  * Licensed under the Apache License, Version 2.0 (the "License");
00006  * you may not use this file except in compliance with the License.
00007  * You may obtain a copy of the License at
00008  *
00009  *     http://www.apache.org/licenses/LICENSE-2.0
00010  *
00011  * Unless required by applicable law or agreed to in writing, software
00012  * distributed under the License is distributed on an "AS IS" BASIS,
00013  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
00014  * See the License for the specific language governing permissions and
00015  * limitations under the License.
00016  */
00017 
00018 #include "drivers/SerialWireOutput.h"
00019 
00020 #if defined(DEVICE_ITM)
00021 
00022 #include "hal/itm_api.h"
00023 
00024 namespace mbed {
00025 
00026 SerialWireOutput::SerialWireOutput(void)
00027 {
00028     /* Initialize ITM using internal init function. */
00029     mbed_itm_init();
00030 }
00031 
00032 ssize_t SerialWireOutput::write(const void *buffer, size_t size)
00033 {
00034     mbed_itm_send_block(ITM_PORT_SWO, buffer, size);
00035 
00036     return size;
00037 }
00038 
00039 } // namespace mbed
00040 
00041 #endif // DEVICE_ITM