ICE cannot be connected to SOM without FGPA

Added by Masayoshi Furuta over 1 year ago

I am having trouble making ICE connections with the following SOM
　・5728-PX-4AA-RI
　・5729-PX-4AA-RI
　・5746-PX-4AA-RI
In addition, the ICE connection is working for "5749-PM-4AA-RI" by the same operation.

■ICE can NOT connect to CPU PROBLEM
MotherBoad：
　MitySOM-AM57 Family Development Kit
ICE:
　Blackhawk USB 560v2
GEL:
　idk_am572x.gel(5728-PX-4AA-RI, 5729-PX-4AA-RI)
　idk_am574x.gel(5746-PX-4AA-RI)

※gel-file is copied from the following folder.

  {CCS install Directory}\ccs\ccs_base\emulation\boards

When you try to connect to CortexA15_0(click CortexA15_0's "Connect Target"), a dialog box appears and the following is displayed

Diplay log Hide log

Error connecting to the target:
(Error -183 @ 0x0)
The controller has detected a cable break far-from itself.
The user must connect the cable/pod to the target.
(Emulation package 9.11.0.00128)

The following logs are generated when "Test Connection" is performed

Diplay log Hide log

[Start: Blackhawk XDS560v2-USB System Trace Emulator_0]

Execute the command:

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

[Result]

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

C:\Users\YSHIMI~1.ITF\AppData\Local\TEXASI~1\
    CCS\ccs1230\0\0\BrdDat\testBoard.dat

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

This utility has selected a 560/2xx-class product.
This utility will load the program 'bh560v2u.out'.
Loaded FPGA Image: C:\ti\ccs1230\ccs\ccs_base\common\uscif\dtc_top.jbc
The library build date was 'Mar 10 2023'.
The library build time was '22:11:02'.
The library package version is '9.11.0.00128'.
The library component version is '35.35.0.0'.
The controller does not use a programmable FPGA.

An error occurred while hard opening the controller.

-----[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: Blackhawk XDS560v2-USB System Trace Emulator_0]

■Linux(SD-Boot) Noproblem
Linux booted normally and USB worked fine

USB-gadget
```
modprobe g_ether
```
Checked both sides of Type-C twice, both times enumerated at SuperSpeed.

USB-host
USB memory stick is enumerated as SS device

root@mitysom-am57x:~# lsusb -t
/:  Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 5000M
    |__ Port 1: Dev 2, If 0, Class=Mass Storage, Driver=usb-storage, 5000M
/:  Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 480M
/:  Bus 02.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 5000M
/:  Bus 01.Port 1: Dev 1, Class=root_hub, Driver=xhci-hcd/1p, 480M
    |__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
<pre>

Replies (4)

RE: ICE cannot be connected to SOM without FGPA - Added by Jonathan Cormier over 1 year ago

I was able to reproduce your results on a 5746-PX-4AA-RI Rev2A. We will look into this.

RE: ICE cannot be connected to SOM without FGPA - Added by Jonathan Cormier over 1 year ago

On J4, the TDIS signal is supposed to be connected to GND. I tested the connection on a module by shorting pins 4 and 8 using tweezers and was able to connect to the ARM over JTAG.

Are you able to mod the SOMs you have by adding a jumper between pins 4 and 8?

I will start the process to fix this on the next release of the SOM.

Link to TI documentation on TDIS: https://software-dl.ti.com/ccs/esd/documents/xdsdebugprobes/emu_xds_target_connection_guide.html#tdis-considerations

clipboard-202307271201-phbgc.png (56.7 KB) clipboard-202307271201-phbgc.png

RE: ICE cannot be connected to SOM without FGPA - Added by Masayoshi Furuta over 1 year ago

By shorting pins 4 and 8, we were able to connect the ICE to the CPU.

RE: ICE cannot be connected to SOM without FGPA - Added by Jonathan Cormier over 1 year ago

Glad to hear it.

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