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bbruce
Joined: 10 Feb 2011
Posts: 3
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| Problem with array of struct |
 Posted: Fri Feb 11, 2011 7:47 am |
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Hi all,
I am using PIC 18F4525, with this array of struct:
| Code: |
typedef unsigned char BYTE;
typedef struct{
BYTE bDay;
BYTE bMon;
BYTE bYear;
BYTE bDow;
BYTE bH;
BYTE bM;
BYTE bS;
} TIMER_ST;
TIMER_ST gstTimerStart[3];
TIMER_ST gstTimerEnd[3];
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It works fine when I was using an array with 3 elements, but when I start using 5 elements, it stop working, like I can't acess the array elements...
I did a test changing the struct size and it works:
| Code: |
typedef unsigned char BYTE;
typedef struct{
BYTE bH;
BYTE bM;
} TIMER_ST;
TIMER_ST gstTimerStart[5];
TIMER_ST gstTimerEnd[5];
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But I need to use the first struct.
How I can do to solve this problem ? |
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Ttelmah
Joined: 11 Mar 2010
Posts: 19498
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| Posted: Fri Feb 11, 2011 10:19 am |
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Compiler version?.
When asking _any_ question about a compiler problem (as opposed to stuff about interfacing), you need to tell us your compiler version. It'd cut the 'dross' here by a huge margin, if it was a 'capital' offence to not include this!... 
Best Wishes |
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bbruce
Joined: 10 Feb 2011
Posts: 3
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| Posted: Fri Feb 11, 2011 3:35 pm |
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Ttelmah,
The version is 4.049 |
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Ttelmah
Joined: 11 Mar 2010
Posts: 19498
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| Posted: Fri Feb 11, 2011 4:04 pm |
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Ouch.
Unfortunately, the early V4 compilers, had major problems. Up to about 4.068, things like your problem were common. Unfortunately, I suspect you will either have to do a evil 'bodge round', and hope it works, or upgrade...
I keep all compilers I actually use for production code. The first 'V4' compiler I kept, was 4.070. Up to this point, 3.249, was far superior.
Best Wishes |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Fri Feb 11, 2011 4:19 pm |
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You didn't provide a test program, so I made one, and it works just fine
with 5 elements with vs. 4.049. Running the following program in MPLAB
simulator, I get this result:
| Quote: |
1 2 3 4 5 6 7
8 9 10 11 12 13 14
15 16 17 18 19 20 21
22 23 24 25 26 27 28
29 30 31 32 33 34 35
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| Code: |
#include <18F4525.h>
#fuses INTRC_IO, NOWDT, BROWNOUT, PUT, NOLVP
#use delay(clock=4M)
#use rs232(baud=9600, UART1, errors)
typedef struct{
BYTE bDay;
BYTE bMon;
BYTE bYear;
BYTE bDow;
BYTE bH;
BYTE bM;
BYTE bS;
} TIMER_ST;
// Initialize the structure with incrementing data.
TIMER_ST gstTimerStart[5] = {
{1,2,3,4,5,6,7},
{8,9,10,11,12,13,14},
{15,16,17,18,19,20,21},
{22,23,24,25,26,27,28},
{29,30,31,32,33,34,35}
};
//============================
void main()
{
int8 i;
for(i = 0; i < 5; i++)
{
printf("%u ", gstTimerStart[i].bDay);
printf("%u ", gstTimerStart[i].bMon);
printf("%u ", gstTimerStart[i].bYear);
printf("%u ", gstTimerStart[i].bDow);
printf("%u ", gstTimerStart[i].bH);
printf("%u ", gstTimerStart[i].bM);
printf("%u ", gstTimerStart[i].bS);
printf("\r");
}
while(1);
} |
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bbruce
Joined: 10 Feb 2011
Posts: 3
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| Posted: Fri Feb 11, 2011 8:41 pm |
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Hi all....problem solved.
It wasn't the struct, I was using 3 arrays of int1. I Just changed it from int1 to int and works.
Thanks for the help! |
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