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30 lines
996 B
C
30 lines
996 B
C
/*
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* Copyright 2024 Google LLC
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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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#pragma once
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#include <stdint.h>
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typedef enum {
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SpiPeriphClockAPB1,
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SpiPeriphClockAPB2
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} SpiPeriphClock;
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//! @internal
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//! Get the nearest SPI prescaler. Updates bus_frequency with the actual frequency
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//! @param bus_frequency the desired bus frequency
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//! @param periph_clock The peripheral clock that is used.
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uint16_t spi_find_prescaler(uint32_t bus_frequency, SpiPeriphClock periph_clock);
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