Xmega Application Note | |||||
This file contains the function prototypes and enumerator definitions for various configuration parameters for the XMEGA Programmable Multi-level Interrupt Controller driver/example.
The driver is not intended for size and/or speed critical code, since most functions are just a few lines of code, and the function call overhead would decrease code performance. The driver is intended for rapid prototyping and documentation purposes for getting started with the XMEGA PMIC module.
For size and/or speed critical code, it is recommended to copy the function contents directly into your application instead of making a function call.
Copyright (c) 2008, Atmel Corporation All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met:
1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution.
3. The name of ATMEL may not be used to endorse or promote products derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY ATMEL "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE EXPRESSLY AND SPECIFICALLY DISCLAIMED. IN NO EVENT SHALL ATMEL BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
Definition in file pmic_driver.h.
#include "avr_compiler.h"
Go to the source code of this file.
Defines | |
#define | PMIC_DisableHighLevel() (PMIC.CTRL &= ~PMIC_HILVLEN_bm) |
Disable high-level interrupts. | |
#define | PMIC_DisableLowLevel() (PMIC.CTRL &= ~PMIC_LOLVLEN_bm) |
Disable low-level interrupts. | |
#define | PMIC_DisableMediumLevel() (PMIC.CTRL &= ~PMIC_MEDLVLEN_bm) |
Disable medium-level interrupts. | |
#define | PMIC_DisableRoundRobin() (PMIC.CTRL &= ~PMIC_RREN_bm) |
Disable round-robin scheduling for low-level interrupts. | |
#define | PMIC_EnableHighLevel() (PMIC.CTRL |= PMIC_HILVLEN_bm) |
Enable high-level interrupts. | |
#define | PMIC_EnableLowLevel() (PMIC.CTRL |= PMIC_LOLVLEN_bm) |
Enable low-level interrupts. | |
#define | PMIC_EnableMediumLevel() (PMIC.CTRL |= PMIC_MEDLVLEN_bm) |
Enable medium-level interrupts. | |
#define | PMIC_EnableRoundRobin() (PMIC.CTRL |= PMIC_RREN_bm) |
Enable round-robin scheduling for low-level interrupts. | |
#define | PMIC_IsHighLevelExecuting() (PMIC.STATUS & PMIC_HILVLEX_bm) |
Check if a high-level interrupt handler is currently executing. | |
#define | PMIC_IsLowLevelExecuting() (PMIC.STATUS & PMIC_LOLVLEX_bm) |
Check if a low-level interrupt handler is currently executing. | |
#define | PMIC_IsMediumLevelExecuting() (PMIC.STATUS & PMIC_MEDLVLEX_bm) |
Check if a medium-level interrupt handler is currently executing. | |
#define | PMIC_IsNMIExecuting() (PMIC.STATUS & PMIC_NMIEX_bm) |
Check if an NMI handler is currently executing. | |
#define | PMIC_SetNextRoundRobinInterrupt(_vectorAddress) (PMIC.INTPRI = (_vectorAddress >> 2) - 1) |
Set interrupt priority for round-robin scheduling. | |
Functions | |
void | PMIC_SetVectorLocationToApplication (void) |
Move interrupt vector table to application area. | |
void | PMIC_SetVectorLocationToBoot (void) |
Move interrupt vector table to boot area. |
#define PMIC_DisableHighLevel | ( | ) | (PMIC.CTRL &= ~PMIC_HILVLEN_bm) |
#define PMIC_DisableLowLevel | ( | ) | (PMIC.CTRL &= ~PMIC_LOLVLEN_bm) |
#define PMIC_DisableMediumLevel | ( | ) | (PMIC.CTRL &= ~PMIC_MEDLVLEN_bm) |
#define PMIC_DisableRoundRobin | ( | ) | (PMIC.CTRL &= ~PMIC_RREN_bm) |
Disable round-robin scheduling for low-level interrupts.
Definition at line 97 of file pmic_driver.h.
#define PMIC_EnableHighLevel | ( | ) | (PMIC.CTRL |= PMIC_HILVLEN_bm) |
#define PMIC_EnableLowLevel | ( | ) | (PMIC.CTRL |= PMIC_LOLVLEN_bm) |
#define PMIC_EnableMediumLevel | ( | ) | (PMIC.CTRL |= PMIC_MEDLVLEN_bm) |
#define PMIC_EnableRoundRobin | ( | ) | (PMIC.CTRL |= PMIC_RREN_bm) |
Enable round-robin scheduling for low-level interrupts.
Definition at line 93 of file pmic_driver.h.
#define PMIC_IsHighLevelExecuting | ( | ) | (PMIC.STATUS & PMIC_HILVLEX_bm) |
Check if a high-level interrupt handler is currently executing.
Definition at line 120 of file pmic_driver.h.
#define PMIC_IsLowLevelExecuting | ( | ) | (PMIC.STATUS & PMIC_LOLVLEX_bm) |
Check if a low-level interrupt handler is currently executing.
Definition at line 136 of file pmic_driver.h.
#define PMIC_IsMediumLevelExecuting | ( | ) | (PMIC.STATUS & PMIC_MEDLVLEX_bm) |
Check if a medium-level interrupt handler is currently executing.
Definition at line 128 of file pmic_driver.h.
#define PMIC_IsNMIExecuting | ( | ) | (PMIC.STATUS & PMIC_NMIEX_bm) |
Check if an NMI handler is currently executing.
Definition at line 144 of file pmic_driver.h.
#define PMIC_SetNextRoundRobinInterrupt | ( | _vectorAddress | ) | (PMIC.INTPRI = (_vectorAddress >> 2) - 1) |
Set interrupt priority for round-robin scheduling.
This macro selects which low-level interrupt has highest priority. Use this function together with round-robin scheduling.
_vectorAddress | Number between 0 and the maximum vector address for the device. |
Definition at line 112 of file pmic_driver.h.
void PMIC_SetVectorLocationToApplication | ( | void | ) |
Move interrupt vector table to application area.
This function moves the interrupt vector table to application area. The function writes the correct signature to the Configuration Change Protection register before writing the CTRL register. Interrupts are automatically ignored during the change enable period.
Definition at line 86 of file pmic_driver.c.
Referenced by main().
00087 { 00088 uint8_t temp = PMIC.CTRL & ~PMIC_IVSEL_bm; 00089 CCP = CCP_IOREG_gc; 00090 PMIC.CTRL = temp; 00091 }
void PMIC_SetVectorLocationToBoot | ( | void | ) |
Move interrupt vector table to boot area.
This function moves the interrupt vector table to boot area. The function writes the correct signature to the Configuration Change Protection register before writing the CTRL register. Interrupts are automatically ignored during the change enable period.
Definition at line 71 of file pmic_driver.c.
00072 { 00073 uint8_t temp = PMIC.CTRL | PMIC_IVSEL_bm; 00074 CCP = CCP_IOREG_gc; 00075 PMIC.CTRL = temp; 00076 }
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