cpu_conf_common.h

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/*
 * Copyright (C) 2016 Kaspar Schleiser <kaspar@schleiser.de>
 *
 * This file is subject to the terms and conditions of the GNU Lesser
 * General Public License v2.1. See the file LICENSE in the top level
 * directory for more details.
 */
 
#pragma once

 
#ifdef __cplusplus
extern "C" {
#endif

#ifndef THREAD_EXTRA_STACKSIZE_PRINTF
#define THREAD_EXTRA_STACKSIZE_PRINTF   (512)
#endif
#ifndef THREAD_STACKSIZE_DEFAULT
#define THREAD_STACKSIZE_DEFAULT        (1024)
#endif
#ifndef THREAD_STACKSIZE_IDLE
#define THREAD_STACKSIZE_IDLE           (256)
#endif

#ifndef ISR_STACKSIZE
#define ISR_STACKSIZE                   (512U)
#endif

#ifdef __ARM_FEATURE_CLZ
#define BITARITHM_LSB_BUILTIN
#define BITARITHM_HAS_CLZ
#else
#define BITARITHM_LSB_LOOKUP
#endif


#ifndef CPU_CORTEXM_PRIORITY_GROUPING
#define CPU_CORTEXM_PRIORITY_GROUPING   (0)
#endif

#ifndef CPU_CORTEXM_PENDSV_IRQ_PRIO
#define CPU_CORTEXM_PENDSV_IRQ_PRIO (UINT8_MAX)
#endif

#define PUF_SRAM_ATTRIBUTES __attribute__((used, section(".puf")))
 
#if CPU_HAS_BACKUP_RAM || DOXYGEN
#define BACKUP_RAM      __attribute__((section(".backup.bss")))

#define BACKUP_RAM_DATA __attribute__((section(".backup.data")))

#define BACKUP_RAM_NOINIT __attribute__((section(".backup.noinit")))
#endif /* CPU_HAS_BACKUP_RAM */

#define IRQ_API_INLINED     (1)
 
#if defined(CPU_CORE_CORTEX_M0) || defined(CPU_CORE_CORTEX_M0PLUS) \
 || defined(CPU_CORE_CORTEX_M23)
#define CPU_CYCLES_PER_LOOP (4)
#endif
 
#ifdef __cplusplus
}
#endif