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XQSHEN's avatar
XQSHEN
Icon for Occasional Contributor rankOccasional Contributor
4 years ago

pin 6 of usb blaster ii cable

where should pin 6 of usb blaster ii cable to connect for FPGA max 10 and Cyclone IV?

Using JTAG mode, pin 6 proc_rst

Should it be some pin user defined for system reset?

Any dedicate pin of FPGA?

5 Replies

  • YuanLi_S_Intel's avatar
    YuanLi_S_Intel
    Icon for Regular Contributor rankRegular Contributor

    You may use pin 6 for hard processor reset under JTAG mode. Otherwise, you may leave it unconnected.


  • XQSHEN's avatar
    XQSHEN
    Icon for Occasional Contributor rankOccasional Contributor

    what do you mean hard processor reset?

    Should it be a pin user defined for system reset in verilog code?

    Any dedicate pin of FPGA?

  • YuanLi_S_Intel's avatar
    YuanLi_S_Intel
    Icon for Regular Contributor rankRegular Contributor

    Yes, it is a pin used to trigger warm reset of the HPS block when prompted via the ARM DS-5 debugger in JTAG mode, It depends whether if you are using that or not. Else you may leave it unconnected.


    As per the note in USB Blaster II user guide, you are recommended to connect this pin to a secondary device such as the MAX V CPLD, and use the device to manage the reset network for HPS.

    https://www.intel.com/content/dam/www/programmable/us/en/pdfs/literature/ug/ug_usb_blstr_ii_cable.pdf#page=11


  • YuanLi_S_Intel's avatar
    YuanLi_S_Intel
    Icon for Regular Contributor rankRegular Contributor

    It can be any pin in the MAX 10 since it is programmable. As long as the logic will trigger warm reset to HPS.