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aab432ff6d
XTIMER_BACKOFF and XTIMER_ISR_BACKOFF were defined in periph_conf.h since 2016 for the legacy xtimer module, which required high backoff values (200) on native to prevent timer underflow issues. However, since the migration to ztimer, all code now uses MODULE_ZTIMER_XTIMER_COMPAT which includes ztimer/xtimer_compat.h before periph_conf.h. This means xtimer_compat.h always defines XTIMER_BACKOFF=1 first, and the periph_conf.h definitions are never used. Remove these unused definitions as they serve no purpose with the current ztimer-based implementation. Signed-off-by: Gilles DOFFE <g.doffe@gmail.com>
118 lines
2.5 KiB
C
118 lines
2.5 KiB
C
/*
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* SPDX-FileCopyrightText: 2014 Ludwig Knüpfer <ludwig.knuepfer@fu-berlin.de>
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* SPDX-License-Identifier: LGPL-2.1-only
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*/
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#pragma once
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/**
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* @addtogroup cpu_native
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* @{
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*/
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/**
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* @file
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* @brief Native CPU peripheral configuration
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* @author Ludwig Knüpfer <ludwig.knuepfer@fu-berlin.de>
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*/
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#include "macros/units.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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/**
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* @brief System core clock in Hz
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*
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* 1GHz is an arbitrary value used for compatibility with other platforms.
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*/
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#if !defined(CLOCK_CORECLOCK) || defined(DOXYGEN)
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# define CLOCK_CORECLOCK GHZ(1)
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#endif
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/**
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* @brief Hardware timer clock skew avoidance
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*/
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#define NATIVE_TIMER_MIN_RES 200
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/**
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* @brief Random Number Generator configuration
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*/
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#define RANDOM_NUMOF (1U)
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/* MARK: - Timer peripheral configuration */
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/**
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* @name Timer peripheral configuration
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* @{
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*/
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#define TIMER_NUMOF (1U)
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#define TIMER_CHANNEL_NUMOF (1U) /**< Number of timer channels */
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/** @} */
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/**
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* @brief UART configuration
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*/
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#if !defined(UART_NUMOF) || defined(DOXYGEN)
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# define UART_NUMOF (1U)
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#endif
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/**
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* @brief PWM configuration
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*/
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#if !defined(PWM_NUMOF) || defined(DOXYGEN)
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# define PWM_NUMOF (8U)
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#endif
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/**
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* @brief QDEC configuration
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*/
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#if !defined(QDEC_NUMOF) || defined(DOXYGEN)
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# define QDEC_NUMOF (8U)
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#endif
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/* MARK: - SPI configuration (Linux host only) */
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/**
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* @name SPI configuration (Linux host only)
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* @{
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*/
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#if !defined(SPI_NUMOF) || defined(DOXYGEN)
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/**
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* @brief Amount of SPI devices
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*
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* Allows up to SPI_NUMOF SPI devices with each having up to SPI_MAXCS hardware
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* cable select lines. Assignment to hardware devices can be configured at
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* runtime using the `--spi` startup parameter.
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*
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* Can be overridden during compile time with a `-DSPI_NUMOF=n` flag.
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*/
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# define SPI_NUMOF (1U)
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#endif
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#if !defined(SPI_MAXCS) || defined(DOXYGEN)
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/**
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* @brief Maximum amount of chip select lines per bus
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*
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* Allows up to SPI_MAXCS hardware cable select lines per SPI device. The n-th
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* hardware select line can be used with the SPI_HWCS macro.
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*/
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# define SPI_MAXCS (4U)
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#endif
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/**
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* @brief Hardware chip select access macro.
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*
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* The amount of available hardware chip select lines depends on the SPI_MAXCS
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* parameter. If the line is actually available at runtime depends of whether a
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* `--spi` startup parameter with the corresponding SPI device and HWCS-line
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* parameter has been given.
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*/
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#define SPI_HWCS(x) (UINT_MAX - SPI_MAXCS + x)
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/** @} */
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#ifdef __cplusplus
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}
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#endif
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/** @} */
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