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FreeRTOS Support ArchiveThe FreeRTOS support forum is used to obtain active support directly from Real Time Engineers Ltd. In return for using our top quality software and services for free, we request you play fair and do your bit to help others too! Sign up to receive notifications of new support topics then help where you can.
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heap_4 and 16BitDOS PortPosted by pronkin on July 15, 2016 I' m using official OpenWatcom 16BitDOS port and found that in heap4.c (and heap5.c) size_t is used for address arithmetic and aligning (FreeRTOS V9.0.0). But casting far pointer to size_t always result zero in segment memory model: ~~~ /* Ensure the heap starts on a correctly aligned boundary. */ uxAddress = ( size_t ) ucHeap; ~~~ the result that heap placed at zero address (applicashon crash). When I made some modificationsn in heap init function such as: 1. change uxAddress to long 2. start using FP_SEG and FP_OFF macroses for convert far pointer to/from absolute address heap start working correctly. It's easy to reproduce this with openwatcom and DOSBox. Does this port still supported or I missed somethig that I can't use heap4 or heap5 memory mangement with it? or heap init code must be refactored to be more portable? heap_4 and 16BitDOS PortPosted by rtel on July 15, 2016 That demo was actually removed in the V9.0.0 release, although it is still available in older releases available from the SourceForge web site. It has probably never been tested with heap_4 or 5.
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NXP tweet showing LPC5500 (ARMv8-M Cortex-M33) running FreeRTOS.
Meet Richard Barry and learn about running FreeRTOS on RISC-V at FOSDEM 2019
Version 10.1.1 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.
