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deniska_gus
Joined: 11 Jul 2006
Posts: 42
Location: Minden, Germany
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| PIC16F873 |
 Posted: Tue Apr 10, 2007 8:23 am |
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Hi all!
My cade, that i made for pic16f877a have no function with pic16f873. A have checked all pins, but it's all ok. I2C have no function and RS232 too. Any ideas? |
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deniska_gus
Joined: 11 Jul 2006
Posts: 42
Location: Minden, Germany
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| Posted: Tue Apr 10, 2007 11:24 am |
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| What i just want to know, if i have a code for pic16f877, what i have to do, that my program will run with pic16f873? |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Tue Apr 10, 2007 11:29 am |
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1. Create a new project in MPLAB and select the 16F873 as the PIC.
2. Edit your source code and change the #include line to be for 16F873.H.
3. Re-compile the code. Fix any errors.
4. Program it into a 16F873. |
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deniska_gus
Joined: 11 Jul 2006
Posts: 42
Location: Minden, Germany
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| Posted: Wed Apr 11, 2007 1:48 am |
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Guys, i give up! Here is my code:
| Code: |
#include <16F873A.h>
#fuses XT, NOWDT, PROTECT, PUT, BROWNOUT, NOLVP, NOWRT
#use delay(clock=4000000)
#use rs232(baud=9600, xmit=PIN_c6, rcv=PIN_c7,parity=n,bits=8,ERRORS)
#use i2c(Master, sda=PIN_C4, scl=PIN_C3, SMBUS)
#define BEEPER PIN_A0
#define proz_20 PIN_B0
#define proz_40 PIN_B1
#define proz_60 PIN_B2
#define proz_80 PIN_B4
#define proz_100 PIN_B5
int1 alarm=0;
int8 datal, datah,i;
int16 data,data_alt=0;
int16 COMMAND_CODE[15]={0x13, 0x08, 0x09, 0x0B, 0x0D, 0x0F, 0x10,0x11, 0x14,
0x15, 0x17, 0x3C, 0x3D, 0x3E, 0x3F};
void test()
{
output_high(proz_20);
output_high(proz_40);
output_high(proz_60);
output_high(proz_80);
output_high(proz_100);
output_high(BEEPER);
delay_ms(500);
output_low(BEEPER);
}
void bq_protokol()
{
printf("~0000");
for (i=0; i<=14; i++)
{
i2c_start(); // Start
i2c_write(0x16); //Battery Adress + R/W=0
i2c_write(COMMAND_CODE[i]); // Command Word
i2c_start(); // Start
i2c_write(0x17); // Battery Address + R/W=1
datal=i2c_read(); // Read + ACK
datah=i2c_read(0); // Read + NACK
i2c_stop(); //Stop
data=make16(datah, datal);
printf("%6lu", data);
}
printf("\r\n");
}
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The same code but with PIC 16F877A and #include <16F877A.h> runs. With this PIC not. Can somebody say me please what's wrong. |
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deniska_gus
Joined: 11 Jul 2006
Posts: 42
Location: Minden, Germany
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| Posted: Wed Apr 11, 2007 1:49 am |
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| I get just 15 times 0 from bq_protokol() and not the data |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Wed Apr 11, 2007 2:15 am |
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In your posts, you sometimes refer to 16F877 and then to 16F877A.
Also, the same thing for 16F873 and 16F873A.
These chips are not the same. The "A" version is not the same as
the "non-A" version. You must compile for the correct chip, and also
your programmer must be set for the correct chip.
Also, what's your compiler version ? |
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deniska_gus
Joined: 11 Jul 2006
Posts: 42
Location: Minden, Germany
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| Posted: Wed Apr 11, 2007 2:20 am |
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| I have both, pic16f873 and pic16f873A. And i have the same problem with both pic's. Now i'm using pic16f873a and #include<16F873A.h>. Vers. 4.013 |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Wed Apr 11, 2007 2:44 am |
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To solve this problem I will have to compare the two .LST files for
the 16F877A and the 16F873A. I'll try to do that tomorrow. |
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deniska_gus
Joined: 11 Jul 2006
Posts: 42
Location: Minden, Germany
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| Posted: Wed Apr 11, 2007 2:47 am |
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| Thank you |
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deniska_gus
Joined: 11 Jul 2006
Posts: 42
Location: Minden, Germany
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| Posted: Wed Apr 11, 2007 3:25 am |
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Dear PCM Programmer,
i just changed SDA from PIN_C4 to PIN_C1 and SCL from PIN_C3 to PIN_C2 and it's runs. But why? |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Wed Apr 11, 2007 2:19 pm |
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That's a good question. Were you trying to use hardware i2c by adding
the FORCE_HW parameter to the #use i2c() statement, when you had
it set to use pins C4 and C1 ?
Or was it always set for software i2c ? (No FORCE_HW parameter)
Are you using a different test program than the one you posted in
the earlier post ?
----
Also, I don't have vs. 4.013. The closest I have is vs. 4.014.
So if the suggestions above don't provide an answer, then compile
the following test program and verify that it fails. Then compile
it for the 16F877A, and verify that it works. Then PM me both .LST files.
Then I'll just visually compare them and look for any significant differences.
| Code: |
#include <16F873A.h>
#fuses XT, NOWDT, PROTECT, PUT, BROWNOUT, NOLVP, NOWRT
#use delay(clock=4000000)
#use rs232(baud=9600, xmit=PIN_c6, rcv=PIN_c7,parity=n,bits=8,ERRORS)
#use i2c(Master, sda=PIN_C4, scl=PIN_C3, SMBUS)
int1 alarm=0;
int8 datal, datah,i;
int16 data,data_alt=0;
int16 COMMAND_CODE[15]=
{0x13, 0x08, 0x09, 0x0B, 0x0D,
0x0F, 0x10, 0x11, 0x14, 0x15,
0x17, 0x3C, 0x3D, 0x3E, 0x3F};
//--------------------------------
void bq_protokol()
{
printf("~0000");
for (i=0; i<=14; i++)
{
i2c_start(); // Start
i2c_write(0x16); // Battery Adress + R/W=0
i2c_write(COMMAND_CODE[i]); // Command Word
i2c_start(); // Start
i2c_write(0x17); // Battery Address + R/W=1
datal=i2c_read(); // Read + ACK
datah=i2c_read(0); // Read + NACK
i2c_stop(); // Stop
data=make16(datah, datal);
printf("%6lu", data);
}
printf("\r\n");
} |
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deniska_gus
Joined: 11 Jul 2006
Posts: 42
Location: Minden, Germany
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| Posted: Thu Apr 12, 2007 2:50 am |
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Hello PCM Programmer
It was always set for software i2c. Now i've added the FORCE_HW Parameter and no succes. I will send you 2 list-files. Thank you for all.
Dennis |
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PCM programmer
Joined: 06 Sep 2003
Posts: 21708
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| Posted: Sun Apr 15, 2007 3:33 pm |
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I compared the two .LST files and I didn't see any important differences.
The compiler uses different RAM locations for temporary variables in
each listing. That shouldn't cause any problems. |
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