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8 pin to 14 pin connector conversion problem

Other Parts Discussed in Thread: TMS320F28035

hi,


I am using xds510 or xds 100v2 14 pin JTAG emulator. We have recived a old board which had a 8 pin JTAG pin connector for TMS320f28035.


8 pin connector has the following pins


1 -> TMS


2-> TRST


3-> TDI


4-> TDO


5->TCK


6-> GND


7->VCC


8-> GND


I have connected


JTAG   ---   Board


1 -- 1


2 -- 2


3 -- 3


7-- 4


11--5


5 -- 7


8/10/12 --- 6/8

I haven't connected TCK-RET, EMU0 and EMU 1. ie its left open

when I connect I am getting error:


C28xx: Error connecting to the target: (Error -1041 @ 0xFFFFFF49) The emulator reported an error. Confirm emulator configuration and connections, reset the emulator, and retry the operation. (Emulation package 5.0.681.0)


When I press test connection I am getting:


[Start]

Execute the command:

%ccs_base%/common/uscif/dbgjtag -f %boarddatafile% -rv -o -F inform,logfile=yes -S pathlength -S integrity

[Result]


-----[Print the board config pathname(s)]------------------------------------

C:\Users\20043979\AppData\Local\.TI\213602635\
    0\0\BrdDat\testBoard.dat

-----[Print the reset-command software log-file]-----------------------------

This utility has selected a 100- or 510-class product.
This utility will load the adapter 'jioserdesusb.dll'.
The library build date was 'Apr  2 2012'.
The library build time was '21:41:04'.
The library package version is '5.0.681.0'.
The library component version is '35.34.39.0'.
The controller does not use a programmable FPGA.
The controller has a version number of '4' (0x00000004).
The controller has an insertion length of '0' (0x00000000).
This utility will attempt to reset the controller.
This utility has successfully reset the controller.

-----[Print the reset-command hardware log-file]-----------------------------

The scan-path will be reset by toggling the JTAG TRST signal.
The controller is the FTDI FT2232 with USB interface.
The link from controller to target is direct (without cable).
The software is configured for FTDI FT2232 features.
The controller cannot monitor the value on the EMU[0] pin.
The controller cannot monitor the value on the EMU[1] pin.
The controller cannot control the timing on output pins.
The controller cannot control the timing on input pins.
The scan-path link-delay has been set to exactly '0' (0x0000).

-----[The log-file for the JTAG TCLK output generated from the PLL]----------

There is no hardware for programming the JTAG TCLK frequency.

-----[Measure the source and frequency of the final JTAG TCLKR input]--------

There is no hardware for measuring the JTAG TCLK frequency.

-----[Perform the standard path-length test on the JTAG IR and DR]-----------

This path-length test uses blocks of 512 32-bit words.

The JTAG IR instruction path-length was not recorded.

-----[Perform the Integrity scan-test on the JTAG IR]------------------------

This test will use blocks of 512 32-bit words.
This test will be applied just once.

Do a test using 0xFFFFFFFF.
Scan tests: 1, skipped: 0, failed: 0

-----[An error has occurred and this utility has aborted]--------------------

This error is generated by TI's USCIF driver or utilities.

The value is '-183' (0xffffff49).
The title is 'SC_ERR_CTL_CBL_BREAK_FAR'.

The explanation is:
The controller has detected a cable break far-from itself.
The user must connect the cable/pod to the target.

[End]

Please let me know how to solve this

  • This is posted in the wrong forum.

    Regardless, I would make sure to double (or triple) check that your connections are all good (continuity and correct pin to pin assignment). Also be careful that you aren't running into crosstalk contamination issues if you are using bus wire to make your adaptor.

    One other thing, if you can tell the tool what TCLK speed to use, select the slowest speed and see if that allows a connection to be established.

  • Chaitra:

    Are you supplying power to your target board?

    On C2000, the JTAG does not supply power, it monitors voltage. Also, make sure that the voltage being monitored is 3.3 volts. Do you know if the 28035 was programmed previously?

    You should definitely repost in the C2000 forum.

  • I moved this thread from the MSP430 forum to the C2000 forum where you will receive better support regarding your TMS320F28035.

    Mike

  • hi,

    We were able to solve the problem

    the issue could be solved by

    1. connecting emu0 and emu1 to vcc by 4.7k resistor. ie a pull up

    2. grounding the unused pins.

    thank you all for your suggestions it was very helpful.