mirror of https://github.com/ARMmbed/mbed-os.git
38 lines
1.2 KiB
C
38 lines
1.2 KiB
C
/* mbed Microcontroller Library
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* Copyright (c) 2006-2019 ARM Limited
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* SPDX-License-Identifier: Apache-2.0
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*
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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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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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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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#ifndef MBED_US_TICKER_DEFINES_H_
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#define MBED_US_TICKER_DEFINES_H_
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#include "us_ticker_data.h"
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/* All devices have 1MHz us_ticker */
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#define US_TICKER_PERIOD_NUM 1
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#define US_TICKER_PERIOD_DEN 1
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#if TIM_MST_BIT_WIDTH == 16
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#define US_TICKER_MASK 0xFFFF
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#elif TIM_MST_BIT_WIDTH == 32
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#define US_TICKER_MASK 0xFFFFFFFF
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#else
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#error "Bad TIM_MST_BIT_WIDTH"
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#endif
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/* Macro-optimised form of us_ticker_read */
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#define us_ticker_read() (TIM_MST->CNT)
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#endif /* MBED_US_TICKER_DEFINES_H_ */
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