Nicolas Borla / Mbed OS BBR_1Ebene

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mbed-os/hal/itm_api.h@0:fbdae7e6d805, 2018-05-14 (annotated)

Committer:
borlanic
Date:
Mon May 14 11:29:06 2018 +0000
Revision:
0:fbdae7e6d805
BBR

Who changed what in which revision?

UserRevisionLine numberNew contents of line
borlanic 0:fbdae7e6d805 1 /** \addtogroup hal */
borlanic 0:fbdae7e6d805 2 /** @{*/
borlanic 0:fbdae7e6d805 3 /* mbed Microcontroller Library
borlanic 0:fbdae7e6d805 4 * Copyright (c) 2017 ARM Limited
borlanic 0:fbdae7e6d805 5 *
borlanic 0:fbdae7e6d805 6 * Licensed under the Apache License, Version 2.0 (the "License");
borlanic 0:fbdae7e6d805 7 * you may not use this file except in compliance with the License.
borlanic 0:fbdae7e6d805 8 * You may obtain a copy of the License at
borlanic 0:fbdae7e6d805 9 *
borlanic 0:fbdae7e6d805 10 * http://www.apache.org/licenses/LICENSE-2.0
borlanic 0:fbdae7e6d805 11 *
borlanic 0:fbdae7e6d805 12 * Unless required by applicable law or agreed to in writing, software
borlanic 0:fbdae7e6d805 13 * distributed under the License is distributed on an "AS IS" BASIS,
borlanic 0:fbdae7e6d805 14 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
borlanic 0:fbdae7e6d805 15 * See the License for the specific language governing permissions and
borlanic 0:fbdae7e6d805 16 * limitations under the License.
borlanic 0:fbdae7e6d805 17 */
borlanic 0:fbdae7e6d805 18
borlanic 0:fbdae7e6d805 19 #ifndef MBED_ITM_API_H
borlanic 0:fbdae7e6d805 20 #define MBED_ITM_API_H
borlanic 0:fbdae7e6d805 21
borlanic 0:fbdae7e6d805 22 #if defined(DEVICE_ITM)
borlanic 0:fbdae7e6d805 23
borlanic 0:fbdae7e6d805 24 #include <stdint.h>
borlanic 0:fbdae7e6d805 25
borlanic 0:fbdae7e6d805 26 #ifdef __cplusplus
borlanic 0:fbdae7e6d805 27 extern "C" {
borlanic 0:fbdae7e6d805 28 #endif
borlanic 0:fbdae7e6d805 29
borlanic 0:fbdae7e6d805 30 /**
borlanic 0:fbdae7e6d805 31 * \defgroup itm_hal Instrumented Trace Macrocell HAL API
borlanic 0:fbdae7e6d805 32 * @{
borlanic 0:fbdae7e6d805 33 */
borlanic 0:fbdae7e6d805 34
borlanic 0:fbdae7e6d805 35 enum {
borlanic 0:fbdae7e6d805 36 ITM_PORT_SWO = 0
borlanic 0:fbdae7e6d805 37 };
borlanic 0:fbdae7e6d805 38
borlanic 0:fbdae7e6d805 39 /**
borlanic 0:fbdae7e6d805 40 * @brief Target specific initialization function.
borlanic 0:fbdae7e6d805 41 * This function is responsible for initializing and configuring
borlanic 0:fbdae7e6d805 42 * the debug clock for the ITM and setting up the SWO pin for
borlanic 0:fbdae7e6d805 43 * debug output.
borlanic 0:fbdae7e6d805 44 *
borlanic 0:fbdae7e6d805 45 * The only Cortex-M register that should be modified is the clock
borlanic 0:fbdae7e6d805 46 * prescaler in TPI->ACPR.
borlanic 0:fbdae7e6d805 47 *
borlanic 0:fbdae7e6d805 48 * The generic mbed_itm_init initialization function will setup:
borlanic 0:fbdae7e6d805 49 *
borlanic 0:fbdae7e6d805 50 * ITM->LAR
borlanic 0:fbdae7e6d805 51 * ITM->TPR
borlanic 0:fbdae7e6d805 52 * ITM->TCR
borlanic 0:fbdae7e6d805 53 * ITM->TER
borlanic 0:fbdae7e6d805 54 * TPI->SPPR
borlanic 0:fbdae7e6d805 55 * TPI->FFCR
borlanic 0:fbdae7e6d805 56 * DWT->CTRL
borlanic 0:fbdae7e6d805 57 *
borlanic 0:fbdae7e6d805 58 * for SWO output on stimulus port 0.
borlanic 0:fbdae7e6d805 59 */
borlanic 0:fbdae7e6d805 60 void itm_init(void);
borlanic 0:fbdae7e6d805 61
borlanic 0:fbdae7e6d805 62 /**
borlanic 0:fbdae7e6d805 63 * @brief Initialization function for both generic registers and target specific clock and pin.
borlanic 0:fbdae7e6d805 64 */
borlanic 0:fbdae7e6d805 65 void mbed_itm_init(void);
borlanic 0:fbdae7e6d805 66
borlanic 0:fbdae7e6d805 67 /**
borlanic 0:fbdae7e6d805 68 * @brief Send data over ITM stimulus port.
borlanic 0:fbdae7e6d805 69 *
borlanic 0:fbdae7e6d805 70 * @param[in] port The stimulus port to send data over.
borlanic 0:fbdae7e6d805 71 * @param[in] data The data to send.
borlanic 0:fbdae7e6d805 72 *
borlanic 0:fbdae7e6d805 73 * @return value of data sent.
borlanic 0:fbdae7e6d805 74 */
borlanic 0:fbdae7e6d805 75 uint32_t mbed_itm_send(uint32_t port, uint32_t data);
borlanic 0:fbdae7e6d805 76
borlanic 0:fbdae7e6d805 77 /**@}*/
borlanic 0:fbdae7e6d805 78
borlanic 0:fbdae7e6d805 79 #ifdef __cplusplus
borlanic 0:fbdae7e6d805 80 }
borlanic 0:fbdae7e6d805 81 #endif
borlanic 0:fbdae7e6d805 82
borlanic 0:fbdae7e6d805 83 #endif
borlanic 0:fbdae7e6d805 84
borlanic 0:fbdae7e6d805 85 #endif /* MBED_ITM_API_H */
borlanic 0:fbdae7e6d805 86
borlanic 0:fbdae7e6d805 87 /**@}*/