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STR9 GCC port

Posted by slawc on January 25, 2008
Does anyone have GCC port of FreeRTOS for STR9?

RE: STR9 GCC port

Posted by sotd on January 25, 2008
I dont but did you see this page http://www.freertos.org/porting-a-freertos-demo-to-different-hardware.html?

RE: STR9 GCC port

Posted by slawc on January 25, 2008
Yes I know about that. The problem is, that FreeRTOS has grown to the point that inconsistencies between various ports are becoming very annoying.

You can find common points for LPC2000 and LPC23xx but STR9 and STR7 are completely different.

RE: STR9 GCC port

Posted by Stefano Oliveri on January 25, 2008
You can find another interesting article (and code sample) here:


In the zip archive you find documentation and samples code to use GCC and Eclipse for both STR7xx and STR91x.

I'm interested on this topic too, but I can't work on it at the moment.
I'll post in this forum when I'll have any news.

RE: STR9 GCC port

Posted by Richard on January 25, 2008
I don't think there are too many differences between the existing IAR STR7 and STR9 ports.

Differences include:

1) The peripheral used to generate the RTOS tick.
2) The place at which the context is saved and restored.

I think the STR9 and STR750 demos use the method whereby there is a common IRQ entry point that saves the context, calls the code to service the interrupt (dependent on the interrupting peripheral), then restores the task context. The STR7 using the other method whereby interrupt vector directly to the peripheral handler code, and the handler code can then choose whether or not to save/restore the context. This is done differently deliberately to demonstrate to two methods.

I now stock a range of low cost hardware, one of which is an STR9 board. It is my intention to provide Eclipse/GCC demos for each of these, but this is going to take a little time.


RE: STR9 GCC port

Posted by Ben on January 30, 2008
I have got FreeRTOS running under GCC if anyone is interested. There are none of the demos as I ported it for a custom board. It is mostly a port of the IAR version with the exception that it can use any of the 4 timers available (set via #define in FreeRTOSConfig.h)

RE: STR9 GCC port

Posted by Sachin Bhujbal on May 2, 2008
Dear Ben how can I get GCC port for STR9XX. Please reply as early as possible.

RE: STR9 GCC port

Posted by Stefano Oliveri on May 5, 2008
Dear Ben,
is possible to have more information about your port?

If it is possible, how can I get it?

Best regard,

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