topic Re: Troubles with codewarrior 5.1 giving error 2801 when using a freescale define in a macro? in S12 / MagniV Microcontrollers

Troubles with codewarrior 5.1 giving error 2801 when using a freescale define in a macro?

electropw — Thu, 08 Aug 2013 00:01:13 GMT

Has anyone had troubles with codewarrior 5.1 giving error 2801 when using a freescale define in a macro?

Including header file "mc9s12A64.h".

Using its #define for "PORTA_BIT3" which defines "_PORTAB.Overlap_STR.PORTASTR.Bits.BIT3"

I created macros to turn the bit ON or OFF as follows

#define LED_ON (_PORTA_BIT3 = 1)

#define LED_OFF (_PORTA_BIT3 = 0)

Using this creates the error C2801.

If I change the macros to

#define LED_ON (PORTA = PORTA | PORTA_BIT3_MASK)

#define LED_OFF (PORTA = PORTA & ~PORTA_BIT3_MASK)

where the header file defines PORTA to be "_PORTAB.Overlap_STR.PORTASTR.Byte", it compiles correctly.

The same problem occurs if you want to test a port pin

#define READ_BIT1 (PORTA_BIT1 == 1) // error

but

#define READ_BIT1 ((PORTA & PORTA_BIT1_MASK) == 1) // ok

The only difference between the 2 methods is the last few chars in the defines. Either ".Bits.BIT3" or ".Byte".

I assume that either method would produce the same code but the first method is nicer and easier to do.

Anyone got any ideas or solutions???

Re: Troubles with codewarrior 5.1 giving error 2801 when using a freescale define in a macro?

ZhangJennie — Thu, 08 Aug 2013 02:40:45 GMT

I just tested your code on my side with CW5.1 i didn't see any error come out. can you please upload your demo project here so that we can check it directly? thanks!

Re: Troubles with codewarrior 5.1 giving error 2801 when using a freescale define in a macro?

Lundin — Thu, 08 Aug 2013 08:43:15 GMT

Ensure that you haven't set the compiler to compile as strict C standard. The CW register headers use various non-standard and poorly-defined bit field features that a standard compiler will get problems compiling.

Re: Troubles with codewarrior 5.1 giving error 2801 when using a freescale define in a macro?

Monica — Wed, 14 Aug 2013 01:00:12 GMT

Hello Phillip,

any breakthrough with your project? Please keep us posted :smileywink:

Best,

Monica,

Re: Troubles with codewarrior 5.1 giving error 2801 when using a freescale define in a macro?

electropw — Wed, 14 Aug 2013 02:33:57 GMT

Thanks everyone.

Sorry it's taken me a while to come back to you, but had to get some other work out.

Unfortunately I have gotten no further other than to say the problem must be in my project somewhere.

I created a new project to show the issue but as Zhang-Jennie found it didn't show.

I tried setting up all my compiler options to match and it made no difference.

So I'll have to let it rest for now until I find the problem. When I do I'll let you know what it was.

Thanks again

Phil

Re: Troubles with codewarrior 5.1 giving error 2801 when using a freescale define in a macro?

electropw — Wed, 14 Aug 2013 02:35:55 GMT

Thanks.

No not set to strict C