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CCLK for ADSP-21489 is not manipulated as per PMCTL config in my target board.

Dear Sir,

Please provide me guidance on the above subject, I tried to evaluate the target board with small application code. It is working fine as per application requirement when I port in evaluation board for ADSP-21489. But the same thing is not working on target board. The reason what I found during preliminary check is its not generating the CCLK as per requirement.

please suggest any additional check up to do and guide to sort this problem.

regards

satya

Parents
  • Dear Sir,

    I didn't try your simple code on custom board for validation of Flash memory, Since then onwards our custom board giving problem. We are on job to solve the problem, but till now it show casing same problem.

    The problem is "we generated power supply required for ADSP 21489 i.e 3.3V and 1.1V from ADP2114 IC (Schematic is attached). When it is power on after some duration both ADSP21489 and ADP2114 goes off.

    We verified the output of ADP2114 circuit at 3.3V and 1.1V with 300mA ripple with no load conditions (means when there is no ADSP21489 IC in custom board).

    please let me know, if in any case either of two supplies 3.3V and 1.1V in that if any one supply is not available to ADSP21489 then processor IC will goes off?. What will be the condition of processor IC.

    please suggest the necessary safety measures to solve our problem.

    regards

    satya

Reply
  • Dear Sir,

    I didn't try your simple code on custom board for validation of Flash memory, Since then onwards our custom board giving problem. We are on job to solve the problem, but till now it show casing same problem.

    The problem is "we generated power supply required for ADSP 21489 i.e 3.3V and 1.1V from ADP2114 IC (Schematic is attached). When it is power on after some duration both ADSP21489 and ADP2114 goes off.

    We verified the output of ADP2114 circuit at 3.3V and 1.1V with 300mA ripple with no load conditions (means when there is no ADSP21489 IC in custom board).

    please let me know, if in any case either of two supplies 3.3V and 1.1V in that if any one supply is not available to ADSP21489 then processor IC will goes off?. What will be the condition of processor IC.

    please suggest the necessary safety measures to solve our problem.

    regards

    satya

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