Forum Discussion

Altera_Forum's avatar
Altera_Forum
Icon for Honored Contributor rankHonored Contributor
16 years ago

Can QuartusII 9.0 readback the bitstream from CPLD via JTAG download cable?

Now, I am using Altera CPLD EPM7128, I want to ask whether QuartusII can readback the bitstream from CPLD via JTAG download cable? I have browsed all menu is QuartusII 9.0

For ISE, there is a "readback" button in IMPACT, it can readback the bitstream from CPLD or FPGA.

I don't know whether QuartusII has this function?

if so, please tell me how to readback the bitstream from CPLD.

3 Replies

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    It's possible through the "examine" function, if the CPLD isn't protected by a security bit.

  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    I don't find the "examine" button in QuartusII, so pls tell me how to do it.

    Thanks a lot.
  • Altera_Forum's avatar
    Altera_Forum
    Icon for Honored Contributor rankHonored Contributor
    16 years ago

    It's an option for CPLDs and configuration devices in the programmer window. If you can't find it, consult the Quartus Software Manual, Chapter 19.