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???
09/29/05 19:42
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#101746 - back to the roots
Responding to: ???'s previous message
1. Kick out the transistors, now. Put the LEDs cathode to SDA (SCL), anode through a 3k3 resistor to Vcc (that's 1mA, you should see the LEDs glowing unless in direct sunlight :-) )

2. Go for the huge delays so you can actually see the ones and zeroson th LEDs. Seconds are fine. There is nothing like maximum time for the master in I2C, you can almost stop.

3. Do I2C with a 24Cxx memory first.

Repeating myself...

Jan Waclawek


List of 29 messages in thread
TopicAuthorDate
Using IIC.ASM            01/01/70 00:00      
   address, speed            01/01/70 00:00      
      Yes            01/01/70 00:00      
   two things            01/01/70 00:00      
      Is HW I2C easier?            01/01/70 00:00      
         That may have been true then, this is no            01/01/70 00:00      
            Replies.            01/01/70 00:00      
               Check SBCMON            01/01/70 00:00      
                  SBCMON            01/01/70 00:00      
                     try a serial memory            01/01/70 00:00      
                     let us try another tack            01/01/70 00:00      
                        another tack.            01/01/70 00:00      
                           you have created just about the worst co            01/01/70 00:00      
                              Worst conditions.            01/01/70 00:00      
                                 oscilloscope            01/01/70 00:00      
                                    oscilloscope            01/01/70 00:00      
                                 To verify that your programming ("burnin            01/01/70 00:00      
                                    verifying.            01/01/70 00:00      
                                       Without a scope you are kind of stuck, s            01/01/70 00:00      
                                          Success.            01/01/70 00:00      
                                       back to the roots            01/01/70 00:00      
                                          Success.            01/01/70 00:00      
               To Mike!            01/01/70 00:00      
                  Hello Mehdi            01/01/70 00:00      
                     Or...            01/01/70 00:00      
                        this is a bootleg, use the original            01/01/70 00:00      
                        i2cbits            01/01/70 00:00      
                           you may want to go here            01/01/70 00:00      
   Clock width is only 2 uSec in IIC_ASM ex            01/01/70 00:00      

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