Re: Interrupt Syntax

It's valid in the ones it works in.  The pragma approach probably isn't
good before 20120406; the attribute approach should work in any mspgcc
version.  The syntactic sugar that used to be recommended just makes it
hard to see what's going on.  There is an isr_compat.h or some such header
that's supposed to work on all the toolchains which you could try too.

Peter

On Tue, Mar 19, 2013 at 8:32 AM, Dean Chester <[email protected]>wrote:

> For which version is this valid syntax? Just tried to use it for a simple
> test with my version which is:
>
> Deans-MacBook-Pro:src dean$ msp430-gcc -v
> Using built-in specs.
> Reading specs from
> /usr/local/msp430-uniarch-20110716/lib/gcc/msp430/4.5.3/../../../../msp430/lib/msp430mcu.spec
> COLLECT_GCC=msp430-gcc
>
> COLLECT_LTO_WRAPPER=/usr/local/msp430-uniarch-20110716/libexec/gcc/msp430/4.5.3/lto-wrapper
> Target: msp430
> Configured with: ../../gcc-4.5.3/configure --target=msp430
> --enable-languages=c,c++ --prefix=/usr/local/msp430-uniarch-20110716
> Thread model: single
> gcc version 4.5.3 (GCC)
>
> And I got a compiler error.
>
> D.
>
>
> On Tue, Mar 19, 2013 at 1:18 PM, Peter Bigot <[email protected]> wrote:
>
>> Ahem.  Let's try that again without pressing "send" prematurely:
>>
>> That page suggests including <signal.h> and using the interrupt macro.
>> <signal.h> is deprecated; its content is in <legacymsp430.h> and you need
>> to include that file to use it without getting a warning at compile time.
>> If you tried it, you should have seen that warning.
>>
>> I personally use the CCS syntax since that's now supported by mspgcc and
>> makes portability easier.
>>
>> #pragma vector=TIMER0_A0_VECTOR
>> __interrupt void
>> ta0cc0_isr (void)
>>
>> Under the covers this and the legacy method both use the native gcc syntax
>> which involves the interrupt attribute.
>>
>> static void
>> __attribute__((__interrupt__(TIMER0_A0_VECTOR)))
>> isr_cc0_TA0 (void)
>>
>> Hopefully this message will show up in the archive so others can find it.
>>
>> Peter
>>
>> On Tue, Mar 19, 2013 at 7:56 AM, Wayne Uroda <[email protected]> wrote:
>>
>> > Hi,
>> >
>> > I just want to double check, is the interrupt syntax described here:
>> >
>> > http://mspgcc.sourceforge.net/manual/x918.html
>> >
>> > still modern and current? I know many parts of MSPGCC have changed, and
>> > I may be getting confused with IAR or code composer because somewhere I
>> > recall the ISR syntax changed from one version to another.
>> >
>> > Thanks,
>> >
>> > - Wayne
>> >
>> >
>> >
>> >
>> >
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