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16F873 and I2C

 
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Francesc
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16F873 and I2C
PostPosted: Sun Feb 29, 2004 6:03 am     Reply with quote

Hi all, we try to read for A/D ports from I2C and after send it over RS-232.
Actually capture data from I2C and after send to RS-232 not are possible.
Here an small part of our code.
The I2C code run OK if display data to LCd display.

How we do to capture from I2C and send to RS-232????
Please Help????
My compiler version is 2.732

#include <16f873.h>
#use delay(CLOCK=4000000,RESTART_WDT)
#use RS232(BAUD=9600,BITS=8,XMIT=PIN_C6,RCV=PIN_C7)
#use I2C(MASTER,SDA=PIN_C4,SCL=PIN_C3,SLOW,RESTART_WDT)
#use fast_io(A)
#use fast_io(B)
#use fast_io(C)
int ACU1,ACU2,ACU3,ACU4;

main()
{
while(1)
{
//***I2C Code

i2c_start();
i2c_write(AnalogWrite);
i2c_write(Reg_Control_Inc);
i2c_stop();
i2c_start();
i2c_write(AnalogRead);
ACU4=i2c_read();
ACU1=i2c_read();
ACU2=i2c_read();
ACU3=i2c_read(0);
i2c_stop();
delay_ms(100);

//***RS232 Code
send RS-232();
}
}
Ttelmah
Guest







Re: 16F873 and I2C
PostPosted: Sun Feb 29, 2004 6:14 am     Reply with quote

Francesc wrote:
Hi all, we try to read for A/D ports from I2C and after send it over RS-232.
Actually capture data from I2C and after send to RS-232 not are possible.
Here an small part of our code.
The I2C code run OK if display data to LCd display.

How we do to capture from I2C and send to RS-232????
Please Help????
My compiler version is 2.732

#include <16f873.h>
#use delay(CLOCK=4000000,RESTART_WDT)
#use RS232(BAUD=9600,BITS=8,XMIT=PIN_C6,RCV=PIN_C7)
#use I2C(MASTER,SDA=PIN_C4,SCL=PIN_C3,SLOW,RESTART_WDT)
#use fast_io(A)
#use fast_io(B)
#use fast_io(C)
int ACU1,ACU2,ACU3,ACU4;

main()
{
while(1)
{
//***I2C Code

i2c_start();
i2c_write(AnalogWrite);
i2c_write(Reg_Control_Inc);
i2c_stop();
i2c_start();
i2c_write(AnalogRead);
ACU4=i2c_read();
ACU1=i2c_read();
ACU2=i2c_read();
ACU3=i2c_read(0);
i2c_stop();
delay_ms(100);

//***RS232 Code
send RS-232();
}
}

To have any idea of what is wrong, we need to see the RS232 code. However one comment leaps to mind - you cannot have spaces in function names...

Best Wishes
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