Errormessage compiling for AtTiny

[Frank Steinberg]

Hi All!

If I try to compile code for ATTiny I get this errormessage:

timer.h ** (412): Error: IFDEF/Constant: PS_1_8 equates to 4 cannot reassigned to equate to 2 (System Include)
timer.h ** (413): Error: IFDEF/Constant: PS_1_64 equates to 7 cannot reassigned to equate to 3 (System Include)
timer.h ** (414): Error: IFDEF/Constant: PS_1_256 equates to 9 cannot reassigned to equate to 4 (System Include)
timer.h ** (415): Error: IFDEF/Constant: PS_1_1024 equates to 11 cannot reassigned to equate to 5 (System Include)

Reason is in timer.h. The script commands, that should overwrite the prescaler contants in case of existance of a register named TCNT1 (that indicates the different timer1 in an attiny) does not work anymore.

Since the bug is introduced 27/11/23 the workaround is to remove "#ifdef AVR ... #endif" around the #defines for the standard prescalers.

Regarding this bug, I found two issues:
1. Scripts should be the highest priority, but can not overwrite constant-values that are #defined inside a #ifdef block.
2. The conditions inside a #script are different if a separation-blank is used: "if var(TCNT1) then" works as expected; "if var (TCNT1) then" never gets true (note the blank after "var") .

I added a revised timer.h. In this library I have also adapted the prescaler for AVR Timer 2 (the old state was "needs work").

Frank

[Anobium]

I will move to released code.

Re the comments.

1. IFDEFs need to check the Constant does not exist. There is now a precedence and the scripts do have the priority. The changes in precedence were needed to properly support real conditional compilation.
2. Re the VAR[SPACE] issue. That is a bug and I will resolve.

[Anobium]

Here is test program I have used to fix the script with space issue.

The next build will have this fix.

#chip mega328p

#define TestConstant1
#define TestConstant2 2

portc = TestConstant2

do    
loop


    #script

        warning TestConstant1
        warning TestConstant2 " =  2"

        if DEF(TestConstant1) Then
            warning "Def(TestConstant1) test 1"
        end if
        if DEF (TestConstant1) Then     'with space
            warning "Def (TestConstant1) test 2"
        end if
        if DEF(TestConstant2) Then
            warning "Def(TestConstant2) test 3"
        end if
        if DEF (TestConstant2) Then     'with space
            warning "Def (TestConstant2) test 4"
        end if

        if Var(TestConstant2) =  "2" Then
            warning "Var(TestConstant2) test 5"
        end if
        if Var (TestConstant2) =  "2" Then     'with space
            warning "Var(TestConstant2) test 6"
        end if
        if var    (PORTC) Then                  'with spaces
            warning "PORTC Exists"
        end if
        if novar (PORTG) Then                      'with space
            warning "PORTG does not Exists"
        end if

    #endscript