hello all,
I am currently trying to port the STM8S Standard Peripheral Library to SDCC
(http://www.st.com/web/en/catalog/tools/FM147/CL1794/SC1807/SS1754/PF258009
<http://www.st.com/web/en/catalog/tools/FM147/CL1794/SC1807/SS1754/PF258009>).
If I succeed it would open up the whole range of examples and libs available on
the STM homepage. In addition, since the STM32 SPL is very similar, it would
provide an easy transition path from STM8/sdcc to STM32/gcc and back. If/when
it works I will make the code available as a patch since the SPL license
prohibits distributing the source code, modified or not :-(
Anyway, right now I got stuck at 2 points for which you can hopefully help me:
1) how do I declare and implement the trap handler? According to
http://sourceforge.net/p/sdcc/patches/224/
<http://sourceforge.net/p/sdcc/patches/224/> the keyword "__trap“ is available
via patch (2014-02-22). Is this already part of 3.4.0 (#8981; 2014-04-5) and,
if yes, how do I use it? If not, is it planned for the next release which is
due when?
2) in the function declaration Cosmic, IAR and Resonance all have the
respective interrupt token before the function name. Therefore the SPL does it
as follows:
stm8s.h: #define INTERRUPT __interrupt
stm8s_it.h: INTERRUPT void AWU_IRQHandler(void);
Unfortunately SDCC expects the keyword „__interrupt“ after the function name,
e.g. "void TIM4_ISR(void) __interrupt(23);“. Is there any way to modify macro
INTERRUPT in stm8s.h so that the keyword is attached to a line, even though it
uses no brackets? If not, it won’t be 100% compatible (i.e. without change)
with the examples and other STM libs - which is my target…
I’m sure there will be more issues, but that’s it for today. For your kind
support thanks a lot in advance!
Greetings,
Georg Icking-Konert
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