Re: sequencer error

[Ralph Lange <ralph.lange@gmx.de>]

Hi Geyang,

In the EPICS build system, .stt files are *not* preprocessed by the C preprocessor.
If your want your SNL source to be preprocessed (e.g. to use #define statements), rename it to have an .st extension instead.

Cheers,
~Ralph

On 30/03/2016 09:52, Silver wrote:

hi, 

I want to define some marco in stt file, for example, "#define N 3" to the example coming with exampleApp, when compiling it, it shows:

compiling ../sncExample.stt to C
/usr/local/epics/r3.14.12.5/base/../modules/seq-2.2.3/bin/linux-x86/snc +r ../sncExample.stt -o sncExample.c
../sncExample.stt:6: lexical error: invalid character
../sncExample.stt:6: syntax error near token ''
../sncExample.stt:6: parser giving up
make[3]: *** [sncExample.c] Error 1

what's the reason? I did remember others use "define"  in stt file, for example, procServControl.

thanks a lot for your help.

-------------------------------sncExample.stt----------------------

program sncExample

double v;
assign v to "{user}:aiExample";
monitor v;
#define N1 3 /*just add this line*/
ss ss1 {
state init {
when (delay(10)) {
printf("sncExample: Startup delay over\n");
} state low
}
state low {
when (v > 5.0) {
printf("sncExample: Changing to high\n");
} state high
}
state high {
when (v <= 5.0) {
printf("sncExample: Changing to low\n");
} state low
}

} 

 

 

 

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Best wishes

Geyang 2016-03-30