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Dependents:   STM32_F103-C8T6basecanblink_led

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hal/itm_api.h@185:08ed48f1de7f, 2018-04-19 (annotated)

Committer:
AnnaBridge
Date:
Thu Apr 19 17:12:19 2018 +0100
Revision:
185:08ed48f1de7f
mbed-dev library. Release version 161

Who changed what in which revision?

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AnnaBridge 185:08ed48f1de7f 1 /** \addtogroup hal */
AnnaBridge 185:08ed48f1de7f 2 /** @{*/
AnnaBridge 185:08ed48f1de7f 3 /* mbed Microcontroller Library
AnnaBridge 185:08ed48f1de7f 4 * Copyright (c) 2017 ARM Limited
AnnaBridge 185:08ed48f1de7f 5 *
AnnaBridge 185:08ed48f1de7f 6 * Licensed under the Apache License, Version 2.0 (the "License");
AnnaBridge 185:08ed48f1de7f 7 * you may not use this file except in compliance with the License.
AnnaBridge 185:08ed48f1de7f 8 * You may obtain a copy of the License at
AnnaBridge 185:08ed48f1de7f 9 *
AnnaBridge 185:08ed48f1de7f 10 * http://www.apache.org/licenses/LICENSE-2.0
AnnaBridge 185:08ed48f1de7f 11 *
AnnaBridge 185:08ed48f1de7f 12 * Unless required by applicable law or agreed to in writing, software
AnnaBridge 185:08ed48f1de7f 13 * distributed under the License is distributed on an "AS IS" BASIS,
AnnaBridge 185:08ed48f1de7f 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
AnnaBridge 185:08ed48f1de7f 15 * See the License for the specific language governing permissions and
AnnaBridge 185:08ed48f1de7f 16 * limitations under the License.
AnnaBridge 185:08ed48f1de7f 17 */
AnnaBridge 185:08ed48f1de7f 18
AnnaBridge 185:08ed48f1de7f 19 #ifndef MBED_ITM_API_H
AnnaBridge 185:08ed48f1de7f 20 #define MBED_ITM_API_H
AnnaBridge 185:08ed48f1de7f 21
AnnaBridge 185:08ed48f1de7f 22 #if defined(DEVICE_ITM)
AnnaBridge 185:08ed48f1de7f 23
AnnaBridge 185:08ed48f1de7f 24 #include <stdint.h>
AnnaBridge 185:08ed48f1de7f 25
AnnaBridge 185:08ed48f1de7f 26 #ifdef __cplusplus
AnnaBridge 185:08ed48f1de7f 27 extern "C" {
AnnaBridge 185:08ed48f1de7f 28 #endif
AnnaBridge 185:08ed48f1de7f 29
AnnaBridge 185:08ed48f1de7f 30 /**
AnnaBridge 185:08ed48f1de7f 31 * \defgroup itm_hal Instrumented Trace Macrocell HAL API
AnnaBridge 185:08ed48f1de7f 32 * @{
AnnaBridge 185:08ed48f1de7f 33 */
AnnaBridge 185:08ed48f1de7f 34
AnnaBridge 185:08ed48f1de7f 35 enum {
AnnaBridge 185:08ed48f1de7f 36 ITM_PORT_SWO = 0
AnnaBridge 185:08ed48f1de7f 37 };
AnnaBridge 185:08ed48f1de7f 38
AnnaBridge 185:08ed48f1de7f 39 /**
AnnaBridge 185:08ed48f1de7f 40 * @brief Target specific initialization function.
AnnaBridge 185:08ed48f1de7f 41 * This function is responsible for initializing and configuring
AnnaBridge 185:08ed48f1de7f 42 * the debug clock for the ITM and setting up the SWO pin for
AnnaBridge 185:08ed48f1de7f 43 * debug output.
AnnaBridge 185:08ed48f1de7f 44 *
AnnaBridge 185:08ed48f1de7f 45 * The only Cortex-M register that should be modified is the clock
AnnaBridge 185:08ed48f1de7f 46 * prescaler in TPI->ACPR.
AnnaBridge 185:08ed48f1de7f 47 *
AnnaBridge 185:08ed48f1de7f 48 * The generic mbed_itm_init initialization function will setup:
AnnaBridge 185:08ed48f1de7f 49 *
AnnaBridge 185:08ed48f1de7f 50 * ITM->LAR
AnnaBridge 185:08ed48f1de7f 51 * ITM->TPR
AnnaBridge 185:08ed48f1de7f 52 * ITM->TCR
AnnaBridge 185:08ed48f1de7f 53 * ITM->TER
AnnaBridge 185:08ed48f1de7f 54 * TPI->SPPR
AnnaBridge 185:08ed48f1de7f 55 * TPI->FFCR
AnnaBridge 185:08ed48f1de7f 56 * DWT->CTRL
AnnaBridge 185:08ed48f1de7f 57 *
AnnaBridge 185:08ed48f1de7f 58 * for SWO output on stimulus port 0.
AnnaBridge 185:08ed48f1de7f 59 */
AnnaBridge 185:08ed48f1de7f 60 void itm_init(void);
AnnaBridge 185:08ed48f1de7f 61
AnnaBridge 185:08ed48f1de7f 62 /**
AnnaBridge 185:08ed48f1de7f 63 * @brief Initialization function for both generic registers and target specific clock and pin.
AnnaBridge 185:08ed48f1de7f 64 */
AnnaBridge 185:08ed48f1de7f 65 void mbed_itm_init(void);
AnnaBridge 185:08ed48f1de7f 66
AnnaBridge 185:08ed48f1de7f 67 /**
AnnaBridge 185:08ed48f1de7f 68 * @brief Send data over ITM stimulus port.
AnnaBridge 185:08ed48f1de7f 69 *
AnnaBridge 185:08ed48f1de7f 70 * @param[in] port The stimulus port to send data over.
AnnaBridge 185:08ed48f1de7f 71 * @param[in] data The data to send.
AnnaBridge 185:08ed48f1de7f 72 *
AnnaBridge 185:08ed48f1de7f 73 * @return value of data sent.
AnnaBridge 185:08ed48f1de7f 74 */
AnnaBridge 185:08ed48f1de7f 75 uint32_t mbed_itm_send(uint32_t port, uint32_t data);
AnnaBridge 185:08ed48f1de7f 76
AnnaBridge 185:08ed48f1de7f 77 /**@}*/
AnnaBridge 185:08ed48f1de7f 78
AnnaBridge 185:08ed48f1de7f 79 #ifdef __cplusplus
AnnaBridge 185:08ed48f1de7f 80 }
AnnaBridge 185:08ed48f1de7f 81 #endif
AnnaBridge 185:08ed48f1de7f 82
AnnaBridge 185:08ed48f1de7f 83 #endif
AnnaBridge 185:08ed48f1de7f 84
AnnaBridge 185:08ed48f1de7f 85 #endif /* MBED_ITM_API_H */
AnnaBridge 185:08ed48f1de7f 86
AnnaBridge 185:08ed48f1de7f 87 /**@}*/