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ocan's avatar
ocan
Icon for New Contributor rankNew Contributor
8 years ago

Conf done pin failed to go high in device1

Hi,

I have a problem when my card is programming with JTAG.

I opened with Quartus Prime 15.1 . I want to program with JTAG interface.

But,

Sometimes I click start button so I looked program failed.

The error is Conf done pin failed to go high in device1. Later After Little time spend , I click start button so, My fpga is programmed.

I dont understand why did not my card program the first click ???

Can u help me please,

Thank u very much.

7 Replies

  • JohnT_Altera's avatar
    JohnT_Altera
    Icon for Regular Contributor rankRegular Contributor
    8 years ago

    Hi,

    It is likely that your FPGA is being programmed by the flash. If you are able to confirm that all the power is on and stable, and the configuration is idle then you should be able to configure it during your first click​

  • ocan's avatar
    ocan
    Icon for New Contributor rankNew Contributor
    8 years ago

    ​Firstly, I am sure all the power is on stable and the configuration is idle. I want to program FPGA with .sof file. But sometimes I did not programmmed, What do u think of can my altera blaster's velocity affect my fpga programming badly ???

    Sometimes I the first clicked start program so ıt was succesfull.

    If all the power is not stable, MYfirst click would not be succesfull.

    what do u recommend with me ?

    thanks a lot ...

  • JohnT_Altera's avatar
    JohnT_Altera
    Icon for Regular Contributor rankRegular Contributor
    8 years ago

    Hi

    May I know which blaster are you using? if you are using USB-Blaster II then I would recommend to change the TCK frequency.

    If you are still seeing the issue then I would recommend you to measure nConfig, nStatus and CONF_DONE pin before and after configuration. This is to further understand what is going on. Sometimes, if you have a insufficient strength in your CONF_DONE pin can cause the issue. Lowering the resistor value might help it

  • ocan's avatar
    ocan
    Icon for New Contributor rankNew Contributor
    8 years ago

    ​I sent my usb blaster fıigure, ı use USB Blaster RCN I. I can use MAX 10 FPGA. The confıgure pin that is config pin done. Do u know it that has a internal resistor.?

    I read max10 datasheet, I just design 10K resistor pull up that connect to config pin done.

    I think it is neccessary to configure .

    After I did other suggestion , what do u think should I lower the resistor value ??

    I measured config pin done's pull up resistor. It is apporixitemely 7K ohm . ı am sure the resistor value 10K ohm during multimeter.

    I dont understand detaily :( What did it happen later which program failed :( ?

  • JohnT_Altera's avatar
    JohnT_Altera
    Icon for Regular Contributor rankRegular Contributor
    8 years ago

    Could you measure the nConfig, nStatus and CONF_DONE pin during configuration?​

  • JohnT_Altera's avatar
    JohnT_Altera
    Icon for Regular Contributor rankRegular Contributor
    8 years ago

    Could you measure the nConfig, nStatus and CONF_DONE pin during configuration?​ This is so that we are able to further debug the issue

  • ocan's avatar
    ocan
    Icon for New Contributor rankNew Contributor
    8 years ago

    Sorry johnt for not reply to you because of my illness :. As soon as I can work , I will reply and can measure. .​