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nailuy
Joined: 21 Sep 2010
Posts: 159
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| matrix address problem or bug problem |
 Posted: Wed Nov 24, 2010 5:06 am |
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I wrote the file *. h
| Code: | int1 A[3][5]={0};
#locate A=0x24 |
I wrote the main program
| Code: | A[0][0]=1;
A[0][1]=1;
A[1][0]=1;
A[1][1]=1;
A[2][4]=1;
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after compiling
lst file I checked wrote
| Code: | .................... int1 A[3][5]={0};
*
001C: CLRF 24
001D: CLRF 25
.................... #locate A=0x24
....................
.................................................
..................... A[0][0]=1;
*
0004: BSF 24.0
.................... A[0][1]=1;
0005: BSF 24.1
.................... A[1][0]=1;
0006: BSF 29.0
.................... A[1][1]=1;
0007: BSF 29.1
.................... A[2][4]=1;
0008: BSF 2E.4
.................... |
This is not wrong? It is bug? I think right code is
| Code: | ..................... A[0][0]=1;
*
0004: BSF 24.0
.................... A[0][1]=1;
0005: BSF 24.1
.................... A[1][0]=1;
0006: BSF 24.5
.................... A[1][1]=1;
0007: BSF 24.6
.................... A[2][4]=1;
0008: BSF 25.5
.................... |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Wed Nov 24, 2010 1:56 pm |
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Always post your PIC and your compiler version if you suspect a compiler
bug. Then (we, people on the forum) can test it, and maybe compare it
to the latest version. |
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nailuy
Joined: 21 Sep 2010
Posts: 159
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| Posted: Thu Nov 25, 2010 3:49 am |
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the entier code in C is:
| Code: | #include <16F677.h>
#device adc=10
#device *=8
#FUSES NOWDT //No Watch Dog Timer
#FUSES INTRC_IO //Internal RC Osc, no CLKOUT
#FUSES NOPROTECT //Code not protected from reading
#FUSES NOBROWNOUT //No brownout reset
#FUSES NOMCLR //Master Clear pin used for I/O
#FUSES NOCPD //No EE protection
#FUSES NOPUT //No Power Up Timer
#FUSES IESO //Internal External Switch Over mode enabled
#FUSES NOFCMEN //Fail-safe clock monitor disabled
#use delay(clock=8M)
#use i2c(Slave,Fast,sda=PIN_B4,scl=PIN_B6,force_hw,address=0xa0)
#RESERVE 0x2A:0x3F //slot0.2
int16 A=0,B=0,C=0;
#locate A = 0x2A
#locate B = 0x2C
#locate C = 0x2E
int1 D[3][5]={0};
#locate D=0x30
#int_EXT
void EXT_isr(void)
{
}
#int_AD
void AD_isr(void)
{
}
#int_SSP
void SSP_isr(void)
{
A=i2c_isr_state();
B=i2c_read();
}
void main()
{
setup_adc_ports(sAN0|VSS_VDD);
setup_adc(ADC_CLOCK_DIV_64);
setup_timer_0(RTCC_INTERNAL|RTCC_DIV_1);
setup_timer_1(T1_DISABLED);
setup_timer_2(T2_DISABLED,0,1);
// setup_ccp1(CCP_OFF);
setup_comparator(NC_NC_NC_NC);// This device COMP currently not supported by the PICWizard
// enable_interrupts(INT_EXT);
// enable_interrupts(INT_AD);
// enable_interrupts(INT_SSP);
// enable_interrupts(GLOBAL);
setup_oscillator(OSC_8MHZ);
for(;;)
{
// enable_interrupts(INT_RA0);
enable_interrupts(INT_EXT);
// enable_interrupts(INT_AD);
enable_interrupts(INT_SSP);
enable_interrupts(GLOBAL);
D[0][0]=1; //to verify real adress
D[0][1]=1;
D[1][0]=1;
D[1][1]=1;
D[2][4]=1;
C++; //to see if intrerupts it's working for I2C
//PIN_B4 PIN_B6 are as input, hight
}
} |
the equivalent lst is:
| Code: |
CCS PCM C Compiler, Version 4.107, 3271
ROM used: 195 words (10%)
Largest free fragment is 1853
RAM used: 36 (28%) at main() level
36 (28%) worst case
Stack: 1 worst case (0 in main + 1 for interrupts)
*
0000: MOVLW 00
0001: MOVWF 0A
0002: GOTO 05B
0003: NOP
0004: MOVWF 7F
0005: SWAPF 03,W
0006: CLRF 03
0007: MOVWF 41
0008: MOVF 7F,W
0009: MOVWF 40
000A: MOVF 0A,W
000B: MOVWF 47
000C: CLRF 0A
000D: SWAPF 40,F
000E: MOVF 04,W
000F: MOVWF 42
0010: MOVF 20,W
0011: MOVWF 43
0012: MOVF 21,W
0013: MOVWF 44
0014: MOVF 22,W
0015: MOVWF 45
0016: MOVF 23,W
0017: MOVWF 46
0018: BCF 03.7
0019: BCF 03.5
001A: BTFSS 0B.4
001B: GOTO 01E
001C: BTFSC 0B.1
001D: GOTO 03B
001E: MOVLW 8C
001F: MOVWF 04
0020: BTFSS 00.6
0021: GOTO 024
0022: BTFSC 0C.6
0023: GOTO 03E
0024: MOVLW 8C
0025: MOVWF 04
0026: BTFSS 00.3
0027: GOTO 02A
0028: BTFSC 0C.3
0029: GOTO 041
002A: MOVF 42,W
002B: MOVWF 04
002C: MOVF 43,W
002D: MOVWF 20
002E: MOVF 44,W
002F: MOVWF 21
0030: MOVF 45,W
0031: MOVWF 22
0032: MOVF 46,W
0033: MOVWF 23
0034: MOVF 47,W
0035: MOVWF 0A
0036: SWAPF 41,W
0037: MOVWF 03
0038: SWAPF 7F,F
0039: SWAPF 7F,W
003A: RETFIE
.................... #include <16F677.h>
.................... //////// Standard Header file for the PIC16F677 device ////////////////
.................... #device PIC16F677
.................... #list
....................
.................... #device adc=10
.................... #device *=8
....................
.................... #FUSES NOWDT //No Watch Dog Timer
.................... #FUSES INTRC_IO //Internal RC Osc, no CLKOUT
.................... #FUSES NOPROTECT //Code not protected from reading
.................... #FUSES NOBROWNOUT //No brownout reset
.................... #FUSES NOMCLR //Master Clear pin used for I/O
.................... #FUSES NOCPD //No EE protection
.................... #FUSES NOPUT //No Power Up Timer
.................... #FUSES IESO //Internal External Switch Over mode enabled
.................... #FUSES NOFCMEN //Fail-safe clock monitor disabled
....................
.................... #use delay(clock=8M)
.................... #use i2c(Slave,Fast,sda=PIN_B4,scl=PIN_B6,force_hw,address=0xa0)
....................
.................... #RESERVE 0x2A:0x3F //slot0.2
.................... int16 A=0,B=0,C=0;
.................... #locate A = 0x2A
.................... #locate B = 0x2C
.................... #locate C = 0x2E
....................
.................... int1 D[3][5]={0};
*
0081: CLRF 30
0082: CLRF 31
.................... #locate D=0x30
....................
....................
.................... #int_EXT
.................... void EXT_isr(void)
.................... {
.................... }
....................
*
003B: BCF 0B.1
003C: BCF 0A.3
003D: GOTO 02A
.................... #int_AD
.................... void AD_isr(void)
.................... {
.................... }
....................
003E: BCF 0C.6
003F: BCF 0A.3
0040: GOTO 02A
.................... #int_SSP
.................... void SSP_isr(void)
.................... {
.................... A=i2c_isr_state();
0041: BSF 03.5
0042: BTFSC 14.5
0043: GOTO 04C
0044: BCF 03.5
0045: CLRF 24
0046: BSF 03.5
0047: BTFSS 14.2
0048: GOTO 04C
0049: BCF 03.5
004A: BSF 24.7
004B: BSF 03.5
004C: BCF 03.5
004D: MOVF 24,W
004E: INCF 24,F
004F: CLRF 2B
0050: MOVWF 2A
.................... B=i2c_read();
0051: BCF 14.6
0052: BTFSS 0C.3
0053: GOTO 052
0054: MOVF 13,W
0055: BSF 14.4
0056: CLRF 2D
0057: MOVWF 2C
.................... }
....................
0058: BCF 0C.3
0059: BCF 0A.3
005A: GOTO 02A
.................... void main()
.................... {
005B: CLRF 04
005C: MOVLW 1F
005D: ANDWF 03,F
005E: MOVLW 71
005F: BSF 03.5
0060: MOVWF 0F
0061: MOVF 0F,W
0062: BSF 06.6
0063: BSF 06.4
0064: MOVLW A0
0065: MOVWF 13
0066: MOVLW 36
0067: BCF 03.5
0068: MOVWF 14
0069: CLRF 2B
006A: CLRF 2A
006B: CLRF 2D
006C: CLRF 2C
006D: CLRF 2F
006E: CLRF 2E
006F: BSF 03.6
0070: BCF 1F.0
0071: BCF 1F.1
0072: BCF 1F.2
0073: BCF 1F.3
0074: BCF 03.6
0075: BCF 1F.6
0076: MOVLW 00
0077: BSF 03.6
0078: MOVWF 1E
0079: CLRF 19
007A: CLRF 1A
007B: BSF 03.5
007C: CLRF 1E
007D: BCF 03.5
007E: CLRF 1B
007F: BCF 03.6
0080: BCF 0D.5
....................
.................... setup_adc_ports(sAN0|VSS_VDD);
*
0085: BSF 03.6
0086: BCF 1F.0
0087: BCF 1F.1
0088: BCF 1F.2
0089: BCF 1F.3
008A: BCF 03.6
008B: BCF 1F.6
008C: MOVLW 01
008D: BSF 03.6
008E: MOVWF 1E
.................... setup_adc(ADC_CLOCK_DIV_64);
008F: BSF 03.5
0090: BCF 03.6
0091: BCF 1F.4
0092: BSF 1F.5
0093: BSF 1F.6
0094: BCF 03.5
0095: BSF 1F.7
0096: BSF 1F.0
.................... setup_timer_0(RTCC_INTERNAL|RTCC_DIV_1);
0097: BSF 03.5
0098: MOVF 01,W
0099: ANDLW C7
009A: IORLW 08
009B: MOVWF 01
.................... setup_timer_1(T1_DISABLED);
009C: BCF 03.5
009D: CLRF 10
.................... setup_timer_2(T2_DISABLED,0,1);
009E: MOVLW 00
009F: MOVWF 21
00A0: MOVWF 12
00A1: MOVLW 00
00A2: BSF 03.5
00A3: MOVWF 12
.................... // setup_ccp1(CCP_OFF);
.................... setup_comparator(NC_NC_NC_NC);// This device COMP currently not supported by the PICWizard
00A4: BCF 03.5
00A5: BSF 03.6
00A6: CLRF 19
00A7: CLRF 1A
00A8: BSF 03.5
00A9: CLRF 1E
00AA: BCF 03.5
00AB: CLRF 1B
00AC: BCF 03.6
00AD: BCF 0D.5
.................... // enable_interrupts(INT_EXT);
.................... // enable_interrupts(INT_AD);
.................... // enable_interrupts(INT_SSP);
.................... // enable_interrupts(GLOBAL);
.................... setup_oscillator(OSC_8MHZ);
00AE: MOVLW 71
00AF: BSF 03.5
00B0: MOVWF 0F
00B1: MOVF 0F,W
....................
.................... for(;;)
.................... {
.................... // enable_interrupts(INT_RA0);
.................... enable_interrupts(INT_EXT);
00B2: BCF 03.5
00B3: BSF 0B.4
.................... // enable_interrupts(INT_AD);
.................... enable_interrupts(INT_SSP);
00B4: BSF 03.5
00B5: BSF 0C.3
.................... enable_interrupts(GLOBAL);
00B6: MOVLW C0
00B7: BCF 03.5
00B8: IORWF 0B,F
....................
.................... D[0][0]=1; //to verify real adress
00B9: BSF 30.0
.................... D[0][1]=1;
00BA: BSF 30.1
.................... D[1][0]=1;
00BB: BSF 35.0
.................... D[1][1]=1;
00BC: BSF 35.1
.................... D[2][4]=1;
00BD: BSF 3A.4
....................
.................... C++; //to see if intrerupts it's working for I2C
00BE: INCF 2E,F
00BF: BTFSC 03.2
00C0: INCF 2F,F
.................... //PIN_B4 PIN_B6 are as input, hight
....................
.................... }
00C1: GOTO 0B3
.................... }
00C2: SLEEP
Configuration Fuses:
Word 1: 34D4 INTRC_IO NOPROTECT NOBROWNOUT NOMCLR NOCPD NOWDT NOPUT IESO NOFCMEN |
problem1 corect word resoves is...
... | Code: | .................
.................... int1 D[3][5]={0};
*
0081: CLRF 30
0082: CLRF 31
.................... #locate D=0x30
....................
....................
....................
.................... D[0][0]=1; //to verify real adress
00B9: BSF 30.0
.................... D[0][1]=1;
00BA: BSF 30.1
.................... D[1][0]=1;
00BB: BSF 30.5 ____________________________________
.................... D[1][1]=1;
00BC: BSF 30.6 ____________________________________
.................... D[2][4]=1;
00BD: BSF 31.6 ____________________________________
....................
|
problem no2 is: intrerrupts not work when I make start condition I2C in my own demo board whith 2 pull up resistor 2K and 2 swithnes grounded.
counterul from "c" continue to work so intrerupts not work.
example to start condition:
time=0; sda, PIN_B4=0; scl,PIN_B6=0;
time=1; sda, PIN_B4=1; scl,PIN_B6=0;
time=2; sda, PIN_B4=1; scl,PIN_B6=1;
time=3; sda, PIN_B4=0; scl,PIN_B6=1; //start condition in this moment
time=4; sda, PIN_B4=0; scl,PIN_B6=0; //counterul"c" from addres 0x2E continue to counting, where is the problem?
A=i2c_isr_state();
B=i2c_read();
A, B are to see real statement I2C at the end of ACK(acknowleged bit)
in the master mode equivalent in my manualy switch/quartz work's very well
thanks for reply PCM programmer |
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FvM
Joined: 27 Aug 2008
Posts: 2337
Location: Germany
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| Posted: Thu Nov 25, 2010 11:02 am |
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Yes it's a bug. By defining the array large enough, you are able to corrupt all kinds of data.
The int1 array has been addressed correctly in PCM V4.087. Then the compiler got's confused
somewhere on the way to V4.093.
It's not understandable at first sight, how "C++;" should be related to I2C interrupts,
so I ignored the second problem. |
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nailuy
Joined: 21 Sep 2010
Posts: 159
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| Posted: Fri Nov 26, 2010 3:22 am |
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thanks for reply FvM
Now I understand why my programs work sometimes hoticly; other projects.
I'll must to try older version without bug's.
Problem no. 2 is to see, understand what state have internal buffer of I2c at the end of acknowledge bit.
Normally internal intrerupt, intrerupts program in this case value or data "C" to continue of counting, and microcontroller use internal "ALU" or core to work only with SSP of I2C until see stop condition and value "C" continue to counting where it left off.
This interrupts normally, theoretically is good for transfer higher speed on I2C.
For lower speed like 10-20 bits/second (not 100K bits/secound) works fine without interrupting routine. Theoretically....
Where I wrong?
Best wishes |
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nailuy
Joined: 21 Sep 2010
Posts: 159
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| Posted: Fri Nov 26, 2010 7:43 am |
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Solution for the first problem is resolved with 4.084.
In version 4.107 ram used 28%, rom used 10% and work confused.
In version 4.084 ram used 30%, rom used 10% and work fine.
Compiler have bug problem. |
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