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CDCE913: CDCE913 SETTING

FEI WANG
Prodigy 140 points
Part Number: CDCE913
Other Parts Discussed in Thread: CLOCKPRO

Hi ,

    

     I use the CDCE913 and use the clockPro to generate the register setting like blow:

     Input    frequence : LVCMOS 30.72MHz

     Output frequence : LVCMOS 24.576MHz

    

     

and generate the setting file is like:

Bit ==> 76543210
Byte 00 - 00000001
Byte 01 - 00001000
Byte 02 - 10110100
Byte 03 - 00001001
Byte 04 - 00000010
Byte 05 - 01010000
Byte 06 - 01000000
Byte 07 - 00000000
Byte 08 - 00000000
Byte 09 - 00000000
Byte 10 - 00000000
Byte 11 - 00000000
Byte 12 - 00000000
Byte 13 - 00000000
Byte 14 - 00000000
Byte 15 - 00000000
Byte 16 - 00000000
Byte 17 - 00000000
Byte 18 - 00000000
Byte 19 - 00000000
Byte 20 - 01101101
Byte 21 - 00000010
Byte 22 - 00000000
Byte 23 - 00000000
Byte 24 - 11100101
Byte 25 - 10001100
Byte 26 - 11000011
Byte 27 - 10001011
Byte 28 - 11100101
Byte 29 - 10001100
Byte 30 - 11000011
Byte 31 - 10001011

 

    And on PCB, I connect  the S0 to 1.8V ,but I can not got the output?

    Could you help me about this problem.

    Thanks!

Br,

Fei

 

  • 0
    TI__Expert 4415 points

    Hi Fei,

    Your configuration looks correct. I would check that the voltage swing of the input clock you are providing meets the input requirements in the Recommended Operating Conditions table of the datasheet:

    Regards,

    -Tim

  • 0 in reply to Tim Chao Li
    Prodigy 140 points

    Hi ,

        

         Thank you for your reply!

         The voltage I think meets the requirements.

         Below do not care about the frequence ,just see the voltage .

         Any other problem I have ?

    Br,

    Fei

        

    Hi

  • 0 in reply to FEI WANG
    TI__Expert 4415 points

    Hi Fei,

    Can you provide the .isf configuration file that you used to program your device? (You may need to put it in a .zip folder to upload it to E2E).

    Regards,

    -Tim

  • 0 in reply to Tim Chao Li
    Prodigy 140 points

    Hi Tim,

     

        This is the ISF file .

        Thanks!

    Br,

    Fei

    test1.zip

    Br,

    Feitest1.zip

  • 0 in reply to FEI WANG
    TI__Expert 4415 points

    Hi Fei,

    The .isf file you have seems fine. I'm not sure what the issue could be.

    Are you testing this on an EVM or are you programming a loose part?

    If you are testing on an EVM, I noticed that in your screenshot, the connection light is off, which means there is no communication with the EVM. When ClockPro asks to select a device, be sure to select 'CDCE913', not '(Local) CDCE913)', since that sets the program to Demo Mode where it does not connect to the EVM.

    If you are programming a loose device using the programmer EVM, I would verify that the EEPROM is programmed correctly by pressing the 'EEPROM=' button to double check that the EEPROM is identical to the config file contents.

    Regards,

    -Tim

  • 0 in reply to Tim Chao Li
    Prodigy 140 points

    Hi Tim,

        Thank you for your reply!

         I use the CDCE9XXPROGRMEVM for programming and then put the chip on my PCB .

         Yes, I use 'EEPROM = ' to verify the chip after program it.

         The setting for 'CDCE913' I can not find this .

         

    So do I need some more setting ?

    Thanks!

    Br,

    Fei

  • 0 in reply to Tim Chao Li
    Prodigy 140 points

    Hi Tim,

          Right now ,I got the checksum fails from EVM,what should I do ?

          It is mean  I did not save the setting  into the EEPROM ,right?

          Thanks!

    Br,

    Fei

  • 0 in reply to FEI WANG
    TI__Expert 4415 points
    Hi Fei,

    You can ignore the message in the bottom status box. There is a bug where the checksum does not get written correctly so it rewrites it. As long as 'Programming Successful' and 'Check Successful' light up, the part has been programmed correctly.

    I am not sure what else is wrong. Would you be willing to share your schematic of the CDCE913?

    Regards,
    -Tim