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Altera_Forum
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21 years ago

Pausing target processor : not responding

Hi all !. I m stucked withe the following problem :

My system is built with a NIOS II, JTAG UART, one AM29LV065D flash, and 2 IDT71V416S RAM.

I am using Quartus 4.2 SP1, IDE 1.1. When I try to run a hello world on my IDE console

I get the following message :

<div class='quotetop'>QUOTE </div>

--- Quote Start ---

Using cable "USB-Blaster [USB-0]", device 1, instance 0x00

Pausing target processor : not responding

Resetting and trying again : FAILED

leaving target processor paused[/B][/b]

--- Quote End ---

I did the following test to check my design :

- run Hello world from an onchip memory : OK

- run few Write and Read cycle to my external memories from an onchip memory : OK

- run Hello world from my external Flash memory : NOK

- run Hello world from my external Ram memory : NOK

- Check power supply on RAM and Flash : OK

- Check access timing on RAM and Flash : OK

- Download program to flash with IDE Flash programmer : OK

- Try different PLL frequency to the NIOS from 50 MHZ to 80 MHz.

I am really running out of solutions now !. Heeeeeeeeeelp please !!!.

greg http://forum.niosforum.com/work2/style_emoticons/<#EMO_DIR#>/sad.gif

6 Replies

  • Altera_Forum's avatar
    Altera_Forum
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    21 years ago

    <div class='quotetop'>QUOTE </div>

    --- Quote Start ---

    run Hello world from my external Flash memory: NOK[/b]

    --- Quote End ---

    What do u mean? Have u downloaded to flash your program and configuration data?Is your reset address in flash space (SOPC setting)?and program and data memory setting in IDE?

    bye
  • Altera_Forum's avatar
    Altera_Forum
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    21 years ago

    WE added a pull up on the CS of the flash and RAM and it works fine now. Thanks for your efforts.

  • Altera_Forum's avatar
    Altera_Forum
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    21 years ago

    --- Quote Start ---

    originally posted by gregoryw@Jun 8 2005, 05:17 AM

    we added a pull up on the cs of the flash and ram and it works fine now. thanks for your efforts.

    --- Quote End ---

    How exactly did you do that? Is that a pull up resistor on one of the FPGA pins?
  • Altera_Forum's avatar
    Altera_Forum
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    21 years ago

    I soldered on the board a 5K resistor pull up to the 3.3V on both Flash and RAM.