FreeRTOS-Demo Directory Reference

Files
	ccf-config.hpp
	Config for the Comms-CCF use.
	ccf-uart0.h
	C interface to use Comms-CCF over the LM3S6965 UART.
	FreeRTOSConfig.h
	log-task.h
	FreeRTOS Task which just logs periodically over Comms-CCF.
	mutex.hpp
	Simple wrapper around the FreeRTOS mutex.
	rpc-task.h
	FreeRTOS Task which handles RPC calls.

Detailed Description

FreeRTOS Demo of Comms-CCF

This is using the Demo/CORTEX_LM3S6965_GCC_QEMU of my fork, with the Demo/Common files removed, and the Demo/drivers/LuminaryMicro copied (to avoid cloning the 1.5GiB FreeRTOS repo.

Also cleaned up the whitespace, and converted to LF line endings.

Adding comms-ccf is done in the commit

git show '@^{/FreeRTOS-Demo: Add RPC example}'

which is hopefully small and stand-alone enough that it is easy to understand.

To run the demo, first do

cmake --workflow --preset=run-debug

and then you can run

uv run comms-ccf tcp

Resource use

Summary	.text	.bss	.data
No Comms-CCF	11.54KiB	3.54KiB	356B
Add Comms-CCF, no RPC handlers	13.26KiB (+1.72Ki)	5.62KiB (+2.09Ki)	356B (no change)
Add version RPC call	14.16KiB (+920)	5.64KiB (+24)	356B (no change)
Add add call	14.89KiB (+752)	5.67KiB (+28)	356B (no change)
Add sub call, similar to add	14.95KiB (+56)	5.70KiB (+28)	356B (no change)
Add greet call	15.25KiB (+312)	5.72KiB (+24)	356B (no change)
Add readm_mem and write_mem calls	16.64KiB (+1.39Ki)	5.78KiB (+56)	356B (no change)
Add test log task	20.78KiB (+4.14Ki)	6.86KiB (+1.09Ki)	356B (no change)
Inline vtable	20.75KiB (-28)	6.89KiB (+24)	356B (no change)
Deferred formatting	19.85KiB (-920)	6.86KiB (-24)	356B (no change)

These were calculated with python compare/update_table.py. The stack sizes were calculated by looking at actual stack usage, and picking a number about 2x that, to be safe. The flash usage could be lower, but it's not terrible.

If you want more details of exactly what is added, look at either the SVGs linked, or misc/compare.md. The descriptions in the table above link to an interactive SVG (open the "raw" SVG in your browser, then you can click on areas/sections to zoom).