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Altera_Forum's avatar
Altera_Forum
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12 years ago

JTAG- USB byteblaster programming cable

Dear sir,

We plan to connect all the devices in JTAG chain (please find the document attached) in a board.

When programming cyclone-IV FPGA using JTAG interface using USB byteblaster, do we need to connect pull up to TMS, TDI at 2.5V and pin 4 of JTAG header directly to 2.5V(VCCA) of cyclone IV FPGA instead of 3.3V(VCCIO of bank 1 is 3.3V).

Please clarify whether 2.5V or 3.3V to be used at JTAG header(at pin 4 & pull ups on TDI(pin 9), TMS(pin 5) respectively) ?

Best Regards,

Thulasi Ramu J

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  • Altera_Forum's avatar
    Altera_Forum
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    12 years ago

    Hi, currently my company use MAx II plus programmer just for programing these devices. We already have have the generated files. All we do with our returned unit is reprogram using maxII plus. The issue is that the system we do it has windows 95 with max II plus version 10.1 using a byte blaster MV. So it works so far but the idea is to move to a newer operating system , and as byteblaster MV is not supported any more, purchase a USB-Byteblaster and if possibele use a newer version of maX II plus which has an harware option of usb-blaster a sthe jtag pins are the same. Seems like what i gather from ur suggestion is that no max II plus version is out there to do that and use Quartus Stand-Alone Programmer. Please let me know if i understand this right. I am new at this project and slightly cluelsee and have to support these really OLD units.

  • Altera_Forum's avatar
    Altera_Forum
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    12 years ago

    --- Quote Start ---

    Hi would the USB-Blaster compatible with the old Max2Plus version 10.1 or i need to purchase a newer version of max II plus. I can download the driver from the website but the version of maxII plus i have does not have a drop down menu in hardware setup for USB-Blaster. The only usb device option i have is APU. please suggest thansk

    --- Quote End ---

    You should not need to use MAX+Plus II at all :)

    Quartus II 9.0sp2 can be used to work with older series devices, eg., FLEX10K, ACEX, etc.

    To use the USB-Blaster to program any devices, just install the Quartus II Programmer.

    Cheers,

    Dave