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[threadx] Timer interrupts on Cortex-R5
  • From: Jonathan Pallant <jonathan.pallant@xxxxxxxxxxxxxxxxxxx>
  • Date: Tue, 23 Jul 2024 07:52:18 +0000
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  • Thread-topic: Timer interrupts on Cortex-R5

I am attempting to build a sample application that will run on Arm Cortex-R5, using ThreadX. I have modified the example application in 6.4.1 under ports/cortex_r5/gnu/example_build and I have it running in QEMU on a versatileab virtual machine.

 

However, when my tasks enter a sleep, they never return. Inspecting the  ‘_tx_initialize_low_level’ function provided with the example, it appears to say ‘/* Setup Timer for periodic interrupts */‘ and then not actually set up a timer. I wonder if this is because there is no default timer on Arm Cortex-R5 systems and it is instead a SoC specific choice – unlike on Arm Cortex-M.

 

Does anyone have an example of configuring a timer, such as the Arm SP804 dual-timer available on the Arm Versatile Application Board (which QEMU emulates)? Or a working example of ThreadX on a Cortex-R5 system?

 

Kind regards,

 

Jonathan

 

-- 

Jonathan Pallant
Senior Embedded Systems Engineer
t. 01480 460933

m. +49 151 2845 8745

Ferrous Systems UK Limited

201a Victoria St.
LONDON
SW1E 5NE

 

 

 

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