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Flowmeter
Joined: 29 Oct 2013
Posts: 3
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| Syntax error |
 Posted: Tue Oct 29, 2013 1:45 am |
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Thank you very much for your reply.
When I change the line to the suggested code
#define BytePtr(var, offset) (&(char)var + offset))
I receive a syntax error e.g. for this line
*BytePtr(test0,0)=addOn;
Do I also need to change something in this line?!
Thank you already so much for your help. |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Tue Oct 29, 2013 1:57 am |
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This test program compiles with no errors with vs. 5.013:
| Code: | #include <18F67J50.h>
#fuses INTRC_IO,NOWDT
#use delay(clock=4M)
#use rs232(baud=9600, UART1, ERRORS)
#define BytePtr(var, offset) (&(char)var + offset)
INT32 test0 = 0x0000ff00;
INT32 test1 = 0x0000ff00;
INT32 test2 = 0x0000ff00;
INT32 test3 = 0x0000ff00;
INT8 addOn=0x0f;
//===========================
void main(void)
{
*BytePtr(test0,0)=addOn;
*BytePtr(test1,1)=addOn;
*BytePtr(test2,2)=addOn;
*BytePtr(test3,3)=addOn;
printf("%lx \r", test0);
printf("%lx \r", test1);
printf("%lx \r", test2);
printf("%lx \r", test3);
while(1);
} |
This is from the MPLAB output window:
| Quote: | Build Successful.
Loaded C:\Program Files\PICC\Projects\PCH_Test\PCH_Test.cof.
BUILD SUCCEEDED: Tue Oct 29 00:51:36 2013
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Your post says you're using C18. I disregarded that because you're
declaring your variables with CCS style data types, such as int8 and int32.
If you're actually using C18, we can't help you. This is a CCS forum.
The place to ask would be on the microchip.com C18 forum.
If you are using CCS, then post your version. |
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Flowmeter
Joined: 29 Oct 2013
Posts: 3
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| Posted: Tue Oct 29, 2013 2:03 am |
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Thank you for your answer. So I try to get an answer from MicroChip and if not I will have to switch to CCS 
Thanks again.
By the way changing it to:
#define BytePtr(var, offset) ((char*)&var + offset)
was the solution. |
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