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???
11/03/08 12:56
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 		 #159566 - Without the code this will go on forever
Responding to: ???'s previous message
Mahesh Joshi said:


Only difference between the 2 codes is
1> SFR initialisation
2> Interrupt vector number.


Surely this must be something to do with it. I have never used the 668/9 chips but the i2c SFR initialisation should be identical.

I have used the Atmel i2c (TWI) and it is almost exactly the same as for the Atmel AVR chips. The registers have different names.
Within a product family, the register locations may move but the SFR names and SFR_bit_names generally stay the same.

David.


List of 25 messages in thread
TopicAuthorDate
PROBLEM IN I2C WITH P89C668            01/01/70 00:00      
   Oscilloscope            01/01/70 00:00      
   Check your hardware I2C addressing            01/01/70 00:00      
   Re to David & Per            01/01/70 00:00      
      Reducing the bit-rate is irrelevant            01/01/70 00:00      
         you can, with VERY minor modifications ...            01/01/70 00:00      
   observations till 2 pm IST            01/01/70 00:00      
      check your hardware again            01/01/70 00:00      
         Re: david            01/01/70 00:00      
            A complete mystery            01/01/70 00:00      
   NEW DEVELOPEMENT            01/01/70 00:00      
      A good test setup            01/01/70 00:00      
         Re: A good test setup            01/01/70 00:00      
      Write your name to the DS1307 RAM            01/01/70 00:00      
         DS1307 max RAM is.....            01/01/70 00:00      
            My data sheet says RAM 0x08 to 0x3F            01/01/70 00:00      
               Sorry David            01/01/70 00:00      
                  Please post your code.            01/01/70 00:00      
                     not 12 individual writes            01/01/70 00:00      
                        Without the code this will go on forever            01/01/70 00:00      
            i2c code            01/01/70 00:00      
               Code?            01/01/70 00:00      
               WHY ON EARTH ...            01/01/70 00:00      
                  Mahesh has a problem with HIS code            01/01/70 00:00      
               I have added code-tags to Praveen's i2c code            01/01/70 00:00      

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