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hal/itm_api.h
- Committer:
- kevman
- Date:
- 2018-11-28
- Revision:
- 0:38ceb79fef03
File content as of revision 0:38ceb79fef03:
/** \addtogroup hal */ /** @{*/ /* mbed Microcontroller Library * Copyright (c) 2017 ARM Limited * * 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 * * http://www.apache.org/licenses/LICENSE-2.0 * * 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. */ #ifndef MBED_ITM_API_H #define MBED_ITM_API_H #if defined(DEVICE_ITM) #include <stdint.h> #include <stddef.h> #ifdef __cplusplus extern "C" { #endif /** * \defgroup itm_hal Instrumented Trace Macrocell HAL API * @{ */ enum { ITM_PORT_SWO = 0 }; /** * @brief Target specific initialization function. * This function is responsible for initializing and configuring * the debug clock for the ITM and setting up the SWO pin for * debug output. * * The only Cortex-M register that should be modified is the clock * prescaler in TPI->ACPR. * * The generic mbed_itm_init initialization function will setup: * * ITM->LAR * ITM->TPR * ITM->TCR * ITM->TER * TPI->SPPR * TPI->FFCR * DWT->CTRL * * for SWO output on stimulus port 0. */ void itm_init(void); /** * @brief Initialization function for both generic registers and target specific clock and pin. */ void mbed_itm_init(void); /** * @brief Send data over ITM stimulus port. * * @param[in] port The stimulus port to send data over. * @param[in] data The 32-bit data to send. * * The data is written as a single 32-bit write to the port. * * @return value of data sent. */ uint32_t mbed_itm_send(uint32_t port, uint32_t data); /** * @brief Send a block of data over ITM stimulus port. * * @param[in] port The stimulus port to send data over. * @param[in] data The block of data to send. * @param[in] len The number of bytes of data to send. * * The data is written using multiple appropriately-sized port accesses for * efficient transfer. */ void mbed_itm_send_block(uint32_t port, const void *data, size_t len); /**@}*/ #ifdef __cplusplus } #endif #endif #endif /* MBED_ITM_API_H */ /**@}*/