Quick and dirty chip tester

Discussion in 'Embedded Systems and Microcontrollers' started by dwurmfeld, Aug 18, 2008.

  1. dwurmfeld

    Thread Starter New Member

    Apr 27, 2008

    I am new to FPGA's and VHDL. I need some quick and dirty code to make all the I/O's of the Virtex 4 (XC4VLX15) toggle on and off every 250 uSec or so.

    I can't seem to get boundary scan working on this chip, so I want to program it to do something I can detect on the outside. I am trying to verify the BGA was soldered down properly.

    Please forgive my lack of knowledge, and any help would be appreciated, even if it is an admonishment to read the FM as long as the FM is identified!:)

  2. zgg

    New Member

    Aug 19, 2008
    If you can program the chip via JTAG you should also be able to use boundary-scan.
    I'm using Scanseer software http://www.scanseer.com to verify soldering and pcb interconnects. With Scanseer you can monitor and control pin states from GUI so you don't need to write your own test program for the chip.