1. Home
  2. Field-Programmable Gate Arrays
  3. xilinx 8.2 xps debug problems

xilinx 8.2 xps debug problems

Hi

I am working with an xilinx xup board. 8.2 sp1 ise + 8.2 edk. I am starting creating a design with ppc running from ddr ram, sysace and uart for output. Starting the debugger with: xmd -xmp system.xmp -opt etc/xmd_ppc405_0.opt with example application works.

Closing the project adding a new plb peripherial template with 4x32 registers no interrupts. Reopening the project. Download bitstream. Starting the debugger again gives:

JTAG chain configuration

-------------------------------------------------- Device ID Code IR Length Part Name 1 05059093 16 XCF32P 2 0a001093 8 System_ACE 3 0127e093 14 XC2VP30

Unable to connect to PowerPC target. Invalid Processor Version No 0x00000000

make -f system.make clean doesn't help.

Any idea why the jtag autodetection fails after adding an core to the plb bus?

Thanks Ludwig

Reply to
Ludwig Lenz
Loading thread data ...

When downloading bitstream , are you using Impact and the JTAG chain? If so, you need the "Pulse PROG" option set to start the PPC properly (using other tools there may be an equivalent setting). Symptoms if you don't are just what you describe.

Never did get a satisfactory explanation as to what this did or why, but it fixed the problem here.

- Brian

Reply to
Brian Drummond

I only get this error if there is no bitstream downloaded to the FPGA. Look if the red LED (D4 - DONE) near config DIP-switches is on.

HTH Thomas

Reply to
Thomas Feller

ElectronDepot website is not affiliated with any of the manufacturers or service providers discussed here. All logos and trade names are the property of their respective owners.