Products > Test Equipment
Sniffing the Rigol's internal I2C bus
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granz:
See updated attachment.  VREF comes from the board and goes into your adapter.
NikWing:
ahh, so the difference is that pin 1 will not be connected and trst and tsrt are hard to see now (but still connected?)
Posterisan:
I need help with mit Segger j-link.

If i try to run bfin-gdbproxy i got:


--- Code: ---C:\Program Files (x86)\Analog Devices\GNU Toolchain\2013R1\uclinux\bin>bfin-gdbp
roxy --debug bfin --frequency=5000000

Remote proxy for GDB, v0.7.2, Copyright (C) 1999 Quality Quorum Inc.
MSP430 adaption Copyright (C) 2002 Chris Liechti and Steve Underwood
Blackfin adaption Copyright (C) 2008 Analog Devices, Inc.

GDBproxy comes with ABSOLUTELY NO WARRANTY; for details
use `--warranty' option. This is Open Source software. You are
welcome to redistribute it under certain conditions. Use the
'--copying' option for details.

debug:     bfin: bfin_open ()
Found USB cable: jlink
error:     bfin: cable initialization failed
debug:     bfin: bfin_open ()
Found USB cable: jlink
error:     bfin: cable initialization failed

--- End code ---

3.3V from SPI are connected to VRef (Segger Pin 1)
Only TRST and SRST are not connected to the segger jlink.
OS is Windows 8 - 64Bit.

Any ideas?
granz:

--- Quote from: Posterisan on January 15, 2014, 04:46:22 pm ---
3.3V from SPI are connected to VRef (Segger Pin 1)
Only TRST and SRST are not connected to the segger jlink.
OS is Windows 8 - 64Bit.

Any ideas?

--- End quote ---

Try connecting with the generic UrJTAG from here first: http://sourceforge.net/projects/urjtag/files/urjtag/0.10/

If it sees the cable with the generic version then you'll probably have to switch to 32-bit Linux to get the blackfin toolchain version to see it.

Also, TRST and SRST must either be connected to your JTAG adapter or pulled-up with resistors, see diagram above.

Posterisan:

--- Quote from: granz on January 15, 2014, 04:54:18 pm ---Try connecting with the generic UrJTAG from here first: http://sourceforge.net/projects/urjtag/files/urjtag/0.10/

If it sees the cable with the generic version then you'll probably have to switch to 32-bit Linux to get the blackfin toolchain version to see it.

Also, TRST and SRST must either be connected to your JTAG adapter or pulled-up with resistors, see diagram above.

--- End quote ---
TRST and SRST are pulled-up 10k/3k9 to 3.3V.

I tried urjtag - doesnt work :

--- Code: ---jlink         Segger/IAR J-Link, Atmel SAM-ICE and others.
jtag> cable jlink
Couldn't connect to suitable USB device.
Error: Cable connection failed!
jtag>
--- End code ---

if i try the the segge commander i got:

--- Code: ---SEGGER J-Link Commander V4.80a ('?' for help)
Compiled Jan 10 2014 21:21:55
DLL version V4.80a, compiled Jan 10 2014 21:21:47
Firmware: J-Link ARM V8 compiled Nov 25 2013 19:20:08
Hardware: V8.00
S/N: xxxxxxx
OEM: SEGGER-EDU
Feature(s): FlashBP, GDB
VTarget = 3.377V
Info: TotalIRLen = 5, IRPrint = 0x01
Info: TotalIRLen = 5, IRPrint = 0x01
Info: TotalIRLen = 5, IRPrint = 0x01
No devices found on JTAG chain. Trying to find device on SWD.
No device found on SWD.
--- End code ---

i try linux  :(
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