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


EFM32 Demo not running (gcc tool chain)

Posted by tscans on July 13, 2011
Copied the CORTEX_EFMG890F128_IAR directory to CORTEX_EFMG890F128_GCC and created a Makefile to use with the codesourcery tool chain (version arm-2010q1). Unfortunately the demo does nothing ... literary. After vTaskStartScheduler is called, the other tasks appear to be never called.

Using gdb ^C reports: 0x000000c0 in _IRQHandlerinterrupt ()

Any ideas?


RE: EFM32 Demo not running (gcc tool chain)

Posted by Richard on July 14, 2011
Well there could be one of twenty different things. From a three line description of what you have done I can only speculate on the most likely - and that would be that you have not populated the interrupt vector table correctly. Look at the other Cortex-M3 GCC demos - you need to populate the PendSV, SysTick and SVC interrupts with xPortPendSVHandler, vPortSysTickHandler and vPortSVCHandler respectively.

If your project is using CMSIS, then you can map these to the CMSIS names by adding the following lines to FreeRTOSConfig.h, then including FreeRTOSConfig.h in the file that defines the vector table.

#define vPortSVCHandler SVC_Handler
#define xPortPendSVHandler PendSV_Handler
#define xPortSysTickHandler SysTick_Handler


RE: EFM32 Demo not running (gcc tool chain)

Posted by tscans on July 14, 2011
Brilliant. That did it. Thank you.

[ 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