Quality RTOS & Embedded Software

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




Loading

receive should block forever on portMAX_DELAY

Posted by dcraw on June 6, 2008
I am running FreeRTOS on an AVR atmega 128. I am calling crQUEUE_RECEIVE with the timeout set to portMAX_DELAY. I expect the call to block forever, but after several minutes the call returns with result != pdPASS.

RE: receive should block forever on portMAX_DELAY

Posted by Richard on June 7, 2008
I would have to double check the co-routine behaviour, but with tasks portMAX_DELAY will only result in an indefinite delay if INCLUDE_vTaskSuspend is set to 1. If you set configUSE_16_BIT_TICKS to 0 you will be able to get much longer delays (months depending on the thick count frequency), but the code will be a bit less efficient on an 8bit processor.

Regards


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




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

Latest News

FreeRTOS kernel V10 is available for immediate download. Now MIT licensed.


FreeRTOS Partners

ARM Connected RTOS partner for all ARM microcontroller cores

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