[OpenOCD-user] Problem when connecting to am2431 via open ocd with gdb and xds110

[Salko, M. <mar...@si...>]

Dear openocd users/developers.

I have an issue with connecting to our product using the xds110 debuger, and openocd with gbd.
I have openocd built using mingw-w64, from gitlab repository with following commit:
2c8376b - target/xtensa: avoid IHI for writes to non-executable memory
(this is because support for ti am243x was added recently)

I'm trying to connect to a running cpu, then reset it and run it again, I'd like to essentially do a step by step trace.

This is an error I'm getting from open ocd, when gdb connects to the first core:
oocd ('err', 'Error: JTAG-DP STICKY ERROR\r\n')
oocd ('err', 'Error: Failed to read memory at 0xe000ed00\r\n')
oocd ('err', 'Error executing event gdb-attach on target am243.cpu.sysctrl:\r\n')

gdb connects using command: "target extended-remote localhost:3333"

>From the schematic we use 5 pin jtag with emu0/1 pins pulled up high, so I think design wise this is fine (debugging tools provided)

This is my board.cfg:

source [find interface/xds110.cfg]
transport select jtag
reset_config srst_only srst_push_pull
adapter srst delay 20
set SOC am243

source [find target/ti_k3.cfg]

adapter speed 250

gdb_port 3333
bindto 0.0.0.0

init
reset halt
wait_halt
sleep 100
poll

am243.cpu.main0_r5.0 arp_examine



>From reading the documentation on arms side, sticky DP is an abort condition? As far as CoreSight is concerned.
And there is a register to clear it, so maybe that is what I have to do, However I have no experience in  working directly with jtag or DP registers.
Any suggestions/help would be highly appreciated.

With best regards,

Martin.