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Messages - GChriss

1
Bus Blaster JTAG debugger / Re: Where to get v3 buffer logic SVF files?
Does anyone have experience using Bus Blaster with OpenOCD?  As best as I can tell---and without a scope---UrJTAG (DP "Rev. 11" / Windows 10) and OpenOCD are affected by the "stuck bitstream" issue across all of the buffers linked to in this thread.  Self-check passes, target is a Olimex A20-OLinuXIno-LIME2 that I haven't been able to verify as a known-good target as of yet.  :/

Wiring scheme follows: suggestions/corrections welcome.

Code: [Select]
        A20 User Manual             /         Full Name              /       FEX Line (linux-sunxi)
PB14_SELECT 011 (mux 3) = JTAG_MS0  /  JTAG Test Mode Select (TMS)   /  jtag_ms = port:PB14<3><default>
PB15_SELECT 011 (mux 3) = JTAG_CK0  /  JTAG Test Clock (TCK)         /  jtag_ck = port:PB15<3><default>
PB16_SELECT 011 (mux 3) = JTAG_DO0  /  JTAG Test Data Output (TDO)   /  jtag_do = port:PB16<3><default>
PB17_SELECT 011 (mux 3) = JTAG_DI0  /  JTAG Test Data Input (TDI)    /  jtag_di = port:PB17<3><default>
                                       Voltage target (VTG, input)
                                    Bi-directional reset (TSRST, inout)

Signal /  Bus Blaster JTAG Header  /  LIME2 (Rev. B) GPIO-3 Pin
TMS    /       07 (TMS)            /       26 (JTAG_MS0)
TCK    /       09 (TCK)            /       28 (JTAG_CK0)
TDO    /       13 (TDO)            /       30 (JTAG_DO0)
TDI    /       05 (TDI)            /       32 (JTAG_DI0)
VTG    /       02 (VTG)            /       03 (3.3V)
TSRST  /       15 (TSRST)          /       05 (RESET#)
GND    /       04 (GND)            /       02 (GND)
           BB JP4: 3.3V->Target: Open

Digikey # SAM8665-ND + CSR20G-ND; all lines less than 2 inches long, no additional caps/resistors added

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