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07/02/03 19:16
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#49895 - AT89C51 interface with ADE7756
Hello,
i m working on making an energy meter using ADE7756 and ADE7756 has an SPI interface from where it can be calibrated and reading can be taken ... I have connected it to uC in following way
P2.0 - Data IN of ADE7756
P2.1 - Data OUT of ADE7756
P2.2 - SCLK of ADE7756
P2.3 - CS Out of ADE7756
i send a read command to ADE7756 and it sends back data onto DOUT( i checked it using scope and this is the scenario when P2.1 and DOUT is not joined) ..but when i join them the signal dies down ... if P2.1 is initally cleared in the software it stay lows despite data coming out from DOUT ...if p2.1 is initally high it stays high despite data coming out of ADE7756 either the current is too low from ADE7756 that it cant drive the circuit or may be some other reason ..any solutions ?????
regards
raza



List of 28 messages in thread
TopicAuthorDate
AT89C51 interface with ADE7756            01/01/70 00:00      
   RE: AT89C51 interface with ADE7756            01/01/70 00:00      
      RE: AT89C51 interface with ADE7756            01/01/70 00:00      
         RE: AT89C51 interface with ADE7756            01/01/70 00:00      
            RE: AT89C51 interface with ADE7756            01/01/70 00:00      
               RE: AT89C51 interface with ADE7756            01/01/70 00:00      
                  RE: AT89C51 interface with ADE7756            01/01/70 00:00      
                     RE: AT89C51 interface with ADE7756            01/01/70 00:00      
                        RE: AT89C51 interface with ADE7756            01/01/70 00:00      
                           RE: AT89C51 interface with ADE7756            01/01/70 00:00      
                              RE: AT89C51 interface with ADE7756            01/01/70 00:00      
                                 RE: AT89C51 interface with ADE7756(imp)            01/01/70 00:00      
                                    RE: AT89C51 interface with ADE7756(imp)            01/01/70 00:00      
                                       RE: AT89C51 interface with ADE7756(imp)            01/01/70 00:00      
                                          RE: AT89C51 interface with ADE7756(imp)            01/01/70 00:00      
                                             RE: AT89C51 interface with ADE7756(imp)            01/01/70 00:00      
                                                RE: AT89C51 interface with ADE7756(imp)            01/01/70 00:00      
                                                   RE: AT89C51 interface with ADE7756(imp)            01/01/70 00:00      
                                                      RE: AT89C51 interface with ADE7756(imp)            01/01/70 00:00      
   Analog and digital ground            01/01/70 00:00      
      RE: Analog and digital ground            01/01/70 00:00      
         RE: Analog and digital ground            01/01/70 00:00      
            RE: Analog and digital ground            01/01/70 00:00      
               Local ground points            01/01/70 00:00      
   RE: AT89C51 interface with ADE7756            01/01/70 00:00      
      UART with Timer 1 ?            01/01/70 00:00      
         RE: UART with Timer 1 ?            01/01/70 00:00      
            RE: bold, Michael            01/01/70 00:00      

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