Quality RTOS & Embedded Software

 Real time embedded FreeRTOS RSS feed 
Real time embedded FreeRTOS mailing list 
Quick Start Supported MCUs PDF Books Trace Tools Ecosystem TCP & FAT Training




Loading

PIC32 port interrupt problem

Posted by wne on December 15, 2009
My code uses int1, int2 and int3. I set break points in each of those ISR and run my code in debug mode. When I trigger the pins, the interrupts never happen. When I stop the code, I can observe that the INTx interrupt flags were set. Any clue on what happen here?

RE: PIC32 port interrupt problem

Posted by Dave on December 15, 2009
Do you think this is something to do with FreeRTOS?

RE: PIC32 port interrupt problem

Posted by mike costa on December 15, 2009
If you never make it to the ISR, the problem is not with FreeRTOS. check your pin settings. make sure you enable GPIO interrupts for those particular pins.

RE: PIC32 port interrupt problem

Posted by wne on December 16, 2009
Thanks for all the answers. I am new to FreeRTOS, so, getting confused where should I look the cause. Now I fixed it. I declared:

void __attribute__((interrupt(ipl1), vector(_EXTERNAL_1_VECTOR))) Membrane_Select_ISR(void)
But, it does not set the interrupt priority. I have to add this

IPC1bits.INT1IP = 1;

then, it works. Just don't know why.


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




Copyright (C) 2004-2010 Richard Barry. Copyright (C) 2010-2016 Real Time Engineers Ltd.
Any and all data, files, source code, html content and documentation included in the FreeRTOSTM distribution or available on this site are the exclusive property of Real Time Engineers Ltd.. See the files license.txt (included in the distribution) and this copyright notice for more information. FreeRTOSTM and FreeRTOS.orgTM are trade marks of Real Time Engineers Ltd.

Latest News:

FreeRTOS V9.0.0 is now available for download.


Free TCP/IP and file system demos for the RTOS


Sponsored Links

⇓ Now With No Code Size Limit! ⇓
⇑ Free Download Without Registering ⇑


FreeRTOS Partners

ARM Connected RTOS partner for all ARM microcontroller cores

Renesas Electronics Gold Alliance RTOS Partner.jpg

Microchip Premier RTOS Partner

RTOS partner of NXP for all NXP ARM microcontrollers

Atmel RTOS partner supporting ARM Cortex-M3 and AVR32 microcontrollers

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

Xilinx Microblaze and Zynq partner

Silicon Labs low power RTOS partner

Altera RTOS partner for Nios II and Cortex-A9 SoC

Freescale Alliance RTOS Member supporting ARM and ColdFire microcontrollers

Infineon ARM Cortex-M microcontrollers

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

Cypress RTOS partner supporting ARM Cortex-M3

Fujitsu RTOS partner supporting ARM Cortex-M3 and FM3

Microsemi (previously Actel) RTOS partner supporting ARM Cortex-M3

Atollic Partner

IAR Partner

Keil ARM Partner

Embedded Artists