UseGitNotSvn
commented
7 years ago After a little digging I fixed the problem. Had to adjust some lines of code in ports.c in gz_load sub directory.
The problem was I am using a 'Raspberry Pi Zero Rev 1.2'. In setup_io() the device tree is read, and the model name of the raspberry Pi is extracted. The 2 within the model name lead to a problem with the current implementation: The software thinks a Pi 2 is used and sets peri_base to BCM2709_PERI_BASE, but BCM2708_PERI_BASE is the right selection for Pi Zero.
After getting around of this, everything worked like a charm.
Cheers
campbellsan
Good evening everyone,
One thing first: An Guzunty and a Pi are a really enoyable combination, thx for making this work and also for the kits.
I got mine a few weeks ago, assembled it last week, but unfortunately I cannot get it work together with my Pi Zero (I dont have any other Pi at my hands). The soldering is well done, tribble-checked it already, but when I try to use Guzunty loader to get gz_test.xsvf on the CPLD nothing works.
With 'sudo gz_load -v4 -p gz_test.xsvf' I get the following output:
Guzunty loader v5.01 rev 2, portions courtesy Xilinx, Inc. Verbose level = 4 Progress Indicator suppressed XSVF file = gz_test.xsvf sizeof( SXsvfInfo ) = 300 bytes TMS Reset Sequence -> Test-Logic-Reset TAP State = RESET XREPEAT = 32 TMS Reset Sequence -> Test-Logic-Reset TAP State = RESET TAP State = RUNTEST/IDLE XRUNTEST = 0 XSIR length = 8 Shift Length = 8 TDI = 0xfe TDO Expected = TAP State = DRSELECT TAP State = IRSELECT TAP State = IRCAPTURE TAP State = IRSHIFT TAP State = IREXIT1 TAP State = IRUPDATE TAP State = RUNTEST/IDLE XSDRSIZE = 32 TDO Mask = 0x0fffffff Shift Length = 32 TDI = 0x00000000 TDO Expected = 0xf9604093 TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TAP State = DRSELECT TAP State = DRCAPTURE TAP State = DRSHIFT TAP State = DREXIT1 TAP State = DRUPDATE TAP State = RUNTEST/IDLE TDO Expected = 0xf9604093 TDO Captured = 0x00000000 TDO Mask = 0x0fffffff
ERROR: TDO mismatch and exceeded max retries ERROR at or near XSVF command #8. See line #8 in the XSVF ASCII file.
ERROR: TDO mismatch and exceeded max retries Execution Time = 0.052 seconds
My intuation tells me there is something wrong with gz_load trying to emulate the JTAG interface, because it gets no response from the CPLD. A quick test with a different development board (same CPLD though) lead to the same problem. According to Guzunty wiki it should work with Pi Zero. Any hints? I must have missed something?
Regards