Quality RTOS & Embedded Software

 Real time embedded FreeRTOS RSS feed 
Quick Start Supported MCUs PDF Books Trace Tools Ecosystem


SAM7X256 GCC Input interrupt

Posted by Davide Visconti on November 19, 2008
Hi to all, I'm new in the forum.
I have a simple question because I'm frustrated...
how to set up an interrupt input ???
On the internet i have found some example but nobody works!
Follow I post my simple code.
Thank you in advance and sorry for my bad english.
best regards,

INP1 is the PortA 21

This is in the main()
AT91F_PMC_EnablePeriphClock(AT91C_BASE_PMC, 1 << AT91C_ID_PIOA);
AT91F_PMC_EnablePeriphClock(AT91C_BASE_PMC, 1 << AT91C_ID_PIOB);
AT91F_AIC_ConfigureItH (AT91C_BASE_AIC, AT91C_ID_PIOA, 5, AT91C_AIC_SRCTYPE_HIGH_LEVEL, InterruptOnInput);
AT91F_PIO_InterruptEnable (AT91C_BASE_PIOA, (1 << INP1));

...and the function InterruptOnInput

void InterruptOnInput( void )
int dummy;

//* enable the next PIO IRQ
//* suppress the compilation warning
dummy = dummy;

// Set the output for a visual verify
// OUT5 = Port B 23 = 55

RE: SAM7X256 GCC Input interrupt

Posted by Dave on November 19, 2008
I think this question is more AT91 related than FreeRTOS related. You could post it to the AT91.com forum. There are examples in the FreeRTOS download though where the tick interrupt is set up and the ethernet interrupts are set up.

[ Back to the top ]    [ About FreeRTOS ]    [ Privacy ]    [ Sitemap ]    [ ]

Copyright (C) Amazon Web Services, Inc. or its affiliates. All rights reserved.

Latest News

Version 10.1.0 of the FreeRTOS kernel is available for immediate download. MIT licensed.

View a recording of the "OTA Update Security and Reliability" webinar, presented by TI and AWS.


FreeRTOS and other embedded software careers at AWS.

FreeRTOS Partners

ARM Connected RTOS partner for all ARM microcontroller cores

Espressif ESP32

IAR Partner

Microchip Premier RTOS Partner

RTOS partner of NXP for all NXP ARM microcontrollers


STMicro RTOS partner supporting ARM7, ARM Cortex-M3, ARM Cortex-M4 and ARM Cortex-M0

Texas Instruments MCU Developer Network RTOS partner for ARM and MSP430 microcontrollers

OpenRTOS and SafeRTOS

Xilinx Microblaze and Zynq partner