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Pekub
Joined: 20 Dec 2005
Posts: 16
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| PIC16F1824 Optimization error |
 Posted: Mon Apr 04, 2011 3:13 am |
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Compiler: 4.119
Hello,
I made a little larger program on PIC16F1824.
I use two struct
| Code: |
struct TG
{
short ItWasErr;
int8 NoSignalErrCnt;
int8 LostSignalErrCnt;
int8 Filter;
int16 LastAvg;
int8 nnNextSpeed;
int16 SpeedBuff[16];
} Tg1, Tg2;
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and I use interrupt from Timer2
| Code: |
void MyFunc(struct TG *ptg)
{
}
#int_timer2
void timer2_isr()
{
setup_timer_2(T2_DIV_BY_16,249,10); // 1.0 ms overflow
Led_On();
}
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In main() function I call MyFunc(&Tg1);
There are more problems:
1. Program jumps to interrupt routine and then resets
2. Function restart_cause returns 0x3F / this is not defined in file 16F1824.h /
What it means ?
3. When I use optimization level 0, program works fine.
4. When I define and use pointer to struct
struct TG *ptg;
ptg = &Tg1;
and then I call MyFunc(ptg)
the program works fine.
5. When I reduced size of program, the program works fine.
My program is too big to send it.
Where is the problem ? In compiler or in optimization or in my code ?
Please help me.
Thank's
Peter |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Mon Apr 04, 2011 11:43 am |
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It's difficult to help you without a test program.
My suggestion is to use one or more of your work-arounds and
continue with the project. |
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Wayne_
Joined: 10 Oct 2007
Posts: 681
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| Posted: Tue Apr 05, 2011 1:57 am |
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As PCM programmer states, it is almost impossible to help you without a test program but saying that I would say your problem is in the LED_On function ;)
I expect it is doing something it shouldn't. but without seeing what it does I have no idea. |
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Pekub
Joined: 20 Dec 2005
Posts: 16
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| Posted: Tue Apr 05, 2011 5:17 am |
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I am maximally simplify my program and all functions. The program now does not perform any function, but the problem remained.
The processor will be reset about every 2 sec.
| Code: |
#case
#include <16F1824.h>
#FUSES INTRC_IO //Internal RC Osc, no CLKOUT
#FUSES NOWDT //Watch Dog Timer
#FUSES NOPUT //Power Up Timer
#FUSES NOMCLR //Master Clear pin used for I/O
#FUSES NOBROWNOUT //Brownout reset
#FUSES BORV25 //Brownout reset at 2.5V
#FUSES NOLVP //No low voltage prgming, B3(PIC16) or B5(PIC18) used for I/O
#use delay(clock=16000000)
#use FAST_IO(A)
#use FAST_IO(C)
int8 RxBuff[32]; // when I remove this line, program works o.k.
#define IN_TG1 PIN_A4 // vstup upraveneho signalu z TG1
#define IN_TEST PIN_C2 // vstup - tlacidlo "Test" povodne PIN_A2
#define LED_TEST PIN_C4 // LED LD3 "Test"
#define TG_SPEED_BUFF_SIZE 16
struct TG
{
short IsSignal; // priznak signalu z TG
short IsBlocking; // priznak blokovania z TG
short NoSignalErr; // priznak chyby TG - "Nie je signal"
short LostSignalWarning; // priznak chyby TG - Varovanie "Mozna strata signalu"
short LostSignalErr; // priznak chyby TG - "Strata signalu"
short ItWasErr; // priznak chyby TG - "Uz bola chyba"
int8 NoSignalErrCnt; // citac poruchoveho stavu "TG - Nie je signal"
int8 LostSignalErrCnt; // citac poruchoveho stavu "TG - Strata signalu"
int8 Filter; // hodnota pre digitalne filtrovanie
int16 SpeedCnt; // citac pre urcenie rychlosti z TG
int16 ActualSpeed; // aktualna hodnota rychlosti z TG
int16 AvgSpeed; // priemerna hodnota rychlosti z TG
int16 LastAvg; // predosla priemerna rychlost z TG1 / pred podozrenim na stratu signalu /
int8 nnNextSpeed; // index pre buffer SpeedBuff pre nasledujucu hodnotu
int16 SpeedBuff[TG_SPEED_BUFF_SIZE]; // buffer rychlosti
} Tg1, Tg2;
//struct TG *ptg1 = &Tg1; // when I enable this line, program works o.k.
struct FILTERED_INPUT
{
short FiIn;
short RiEdge;
short FaEdge;
short Finish;
int8 LowCnt;
int8 HighCnt;
};
struct FILTERED_INPUT InTest, InRst, InTg1, InTg2;
// definicie makier
#define Led_TEST_On() (output_high(LED_TEST)) // zapnutie LED TEST
#define Led_TEST_Off() (output_low(LED_TEST)) // vypnutie LED TEST
#inline
void FIN_Read(struct FILTERED_INPUT *fio, short pinIn, int8 sampleCnt)
// pocet citani pinu = SampleCnt + 1
{
if(fio->Finish == FALSE)
fio->FiIn = pinIn;
if(pinIn == 0)
fio->HighCnt = 0; // nuluje citac "1-urovne"
}
#int_timer4
void timer4_isr()
{
setup_timer_4(T4_DIV_BY_4,9,10); //10.0 us overflow, 100.0 us interrupt
FIN_Read(&InTg1, input(IN_TG1), Tg1.Filter); // nacita vstup z TG1
}
void TG_Obsluha(struct TG *tg)
{
}
#zero_ram
void main()
{
// inicializacia
setup_oscillator(OSC_16MHZ|OSC_INTRC|OSC_PLL_OFF,0);
setup_adc_ports(ADC_OFF);
set_tris_a(0b11111010); // A0,A2=output, A1,A3-A5=input
set_tris_c(0b00000100); // C0,C1,C3-C5=output, C2=input
Led_TEST_On();
delay_ms(150);
Led_TEST_Off();
setup_timer_4(T4_DIV_BY_4,9,10); //10.0 us overflow, 100.0 us interrupt
enable_interrupts(GLOBAL);
enable_interrupts(INT_TIMER4);
while(TRUE)
{
FIN_Read(&InTest, input(IN_TEST), 30); // when I remove this line, program works o.k.
TG_Obsluha(&Tg1); // when I remove this line, program works o.k.
//TG_Obsluha(ptg1);
}
} |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Wed Apr 06, 2011 1:43 pm |
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| Does this program run correctly if you use "#opt 0" ? |
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Pekub
Joined: 20 Dec 2005
Posts: 16
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| Posted: Thu Apr 07, 2011 4:56 am |
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I identified it is not optimization error.
The program does not work with #opt 0 and even with #opt 9 - default value.
I still do not know what is wrong.
I'm going to change my application to another processor PIC18F14K22 and will wait for a new version of the compiler. |
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