nuttx/arch/arm/include/rp2040/chip.h
2021-02-20 03:45:24 -08:00

38 lines
1.7 KiB
C

/****************************************************************************
* arch/arm/include/rp2040/chip.h
*
* Licensed to the Apache Software Foundation (ASF) under one or more
* contributor license agreements. See the NOTICE file distributed with
* this work for additional information regarding copyright ownership. The
* ASF licenses this file to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance with the
* License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
* License for the specific language governing permissions and limitations
* under the License.
*
****************************************************************************/
#ifndef __ARCH_ARM_INCLUDE_RP2040_CHIP_H
#define __ARCH_ARM_INCLUDE_RP2040_CHIP_H
/* NVIC priority levels *****************************************************/
/* Each priority field holds a priority value, 0-3. The lower the value,
* the greater the priority of the corresponding interrupt. The processor
* implements only bits[7:6] of each field, bits[5:0] read as zero and ignore
* writes.
*/
#define NVIC_SYSH_PRIORITY_MIN 0xc0 /* All bits[7:6] set is minimum priority */
#define NVIC_SYSH_PRIORITY_DEFAULT 0x80 /* Midpoint is the default */
#define NVIC_SYSH_PRIORITY_MAX 0x00 /* Zero is maximum priority */
#define NVIC_SYSH_PRIORITY_STEP 0x40 /* Five bits of interrupt priority used */
#endif /* __ARCH_ARM_INCLUDE_RP2040_CHIP_H */