topic Re: Program Serial RCON using S32 Debug Probe with S32G3 - Python errors in S32G

Program Serial RCON using S32 Debug Probe with S32G3 - Python errors

amerkle — Wed, 22 Oct 2025 15:03:44 GMT

I am using the S32DesignStudio 3.6.2 and following the new procedure in HOWTO: Program Serial RCON using S32 Debug Probe - NXP Community

Every of the following commands are exeucted in the provided Mingw64 shell.

The PYTHONPATH and the PYTHONHOME are set to

/c/NXP/S32DS.3.6.2/S32DS/build_tools/msys32/mingw64/lib/python3.10/

I change to the folder of the gdb and calling arm-none-eabi-gdb-py.exe works as expected no error, no warnings.

Inside gdb: source ../../../S32Debugger/Debugger/scripts/gdb_extensions/rcon/s32rcon.py

Then calling py rcon() I get the following errors, see e.g. the python error that the array can not be found.

Any help is appreciated!

(gdb) py rcon()
Starting RCON programmer services...
Initializing target...
Running RCON script C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx/s32g3xx_i2c_RCON.py
Warning: Loading of extensions failedTraceback (most recent call last):
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx//../utils/gta_lib.py", line 18, in <module>
import register_ds_extensions
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/utils/../gdb_extensions/register_ds_extensions.py", line 26, in <module>
from target.commands import create_commands as target_commands
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/target/commands.py", line 46, in <module>
from break_config_command import BreakConfigCommand
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/target/break_config_command.py", line 25, in <module>
from flash.scripts.elfparser import ElfFile, SectionType, SectionFlag
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/flash/scripts/elfparser.py", line 17, in <module>
from array import array
ModuleNotFoundError: No module named 'array'
Board init...
Primary session connecting...
^Error:Target connection failed. Please re-check the settings.Processor: S32G3XXProbe: S32 Debugger TAP (10.64.8.54)[CCS: Cable disconnected (target power not detected)]//Additional error details:[CCS: target cable disconnected]:GtaTaCcsCableDisconnected(1335) File "<string>", line 1, in <module> File "../../../S32Debugger/Debugger/scripts/gdb_extensions/rcon/s32rcon.py", line 106, in rcon _rcon_initialization().unwrap() File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../../utils/errors.py", line 275, in wrapper v = func(*args, **kwargs) File "../../../S32Debugger/Debugger/scripts/gdb_extensions/rcon/s32rcon.py", line 99, in _rcon_initialization start_rcon_services(argument) File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/scripts/services.py", line 147, in start_rcon_services return instance.invoke(argument) File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/scripts/services.py", line 102, in invoke ret = self.start_service(argument) File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/scripts/services.py", line 123, in start_service ret = start(args) File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/scripts/rcon_init.py", line 135, in start if internal_start(args) is False: File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/scripts/rcon_init.py", line 37, in internal_start if internal_initialize_target(args) is False: File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/scripts/rcon_init.py", line 113, in internal_initialize_target DbgInit.RCON_BOARD_INIT(*setup_args) File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx/s32g3xx_i2c_RCON.py", line 201, in RCON_BOARD_INIT generic_board.board_init() File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx/s32g3xx_generic_bareboard.py", line 153, in board_init connect() File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx/s32g3xx_generic_bareboard.py", line 57, in connect gta_lib.establish_connection( File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx//../utils/gta_lib.py", line 89, in establish_connection return connect( File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../../utils/errors.py", line 275, in wrapper v = func(*args, **kwargs) File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx//../utils/gta_lib.py", line 152, in connect gdb_exec("monitor ctx connect", from_tty=True, errcode=ErrorCode.ConnectError).unwrap() File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../../utils/mem_reg_utils.py", line 65, in wrapper result = Result(Error(value, str(error_msg)))^Error:Exception:Target connection failed. Please re-check the settings.

Processor: S32G3XX
Probe: S32 Debugger TAP (10.64.8.54)
[CCS: Cable disconnected (target power not detected)]
//
Additional error details:
[CCS: target cable disconnected]
:GtaTaCcsCableDisconnected(1335)
^Error::ConnectError(102) File "<string>", line 1, in <module> File "../../../S32Debugger/Debugger/scripts/gdb_extensions/rcon/s32rcon.py", line 106, in rcon _rcon_initialization().unwrap() File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../../utils/errors.py", line 275, in wrapper v = func(*args, **kwargs) File "../../../S32Debugger/Debugger/scripts/gdb_extensions/rcon/s32rcon.py", line 99, in _rcon_initialization start_rcon_services(argument) File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/scripts/services.py", line 147, in start_rcon_services return instance.invoke(argument) File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/scripts/services.py", line 102, in invoke ret = self.start_service(argument) File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/scripts/services.py", line 123, in start_service ret = start(args) File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/scripts/rcon_init.py", line 135, in start if internal_start(args) is False: File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/scripts/rcon_init.py", line 37, in internal_start if internal_initialize_target(args) is False: File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/scripts/rcon_init.py", line 113, in internal_initialize_target DbgInit.RCON_BOARD_INIT(*setup_args) File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx/s32g3xx_i2c_RCON.py", line 201, in RCON_BOARD_INIT generic_board.board_init() File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx/s32g3xx_generic_bareboard.py", line 153, in board_init connect() File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx/s32g3xx_generic_bareboard.py", line 57, in connect gta_lib.establish_connection( File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx//../utils/gta_lib.py", line 89, in establish_connection return connect( File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../../utils/errors.py", line 280, in wrapper return Result(Error(errorcode, "%s" % str(e)))^Error:Exception::ConnectError(102)
^Error::RCONUndefinedError(704) File "<string>", line 1, in <module> File "../../../S32Debugger/Debugger/scripts/gdb_extensions/rcon/s32rcon.py", line 106, in rcon _rcon_initialization().unwrap() File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../../utils/errors.py", line 280, in wrapper return Result(Error(errorcode, "%s" % str(e)))^Error:Exception::RCONUndefinedError(704)
^Error:Exception::RCONUndefinedError(704)
Python Exception <class 'errors.GtaLibException'>:
Error occurred in Python.

Re: Program Serial RCON using S32 Debug Probe with S32G3 - Python errors

amerkle — Wed, 22 Oct 2025 15:31:30 GMT

If the debugger is powered (the previous log shows the log without a powered debugger), the python errors stays, but later with another python error that math module can not be found.

(gdb) py rcon()
Starting RCON programmer services...
Initializing target...
Running RCON script C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx/s32g3xx_i2c_RCON.py
Warning: Loading of extensions failedTraceback (most recent call last):
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx//../utils/gta_lib.py", line 18, in <module>
import register_ds_extensions
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/utils/../gdb_extensions/register_ds_extensions.py", line 26, in <module>
from target.commands import create_commands as target_commands
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/target/commands.py", line 46, in <module>
from break_config_command import BreakConfigCommand
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/target/break_config_command.py", line 25, in <module>
from flash.scripts.elfparser import ElfFile, SectionType, SectionFlag
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/flash/scripts/elfparser.py", line 17, in <module>
from array import array
ModuleNotFoundError: No module named 'array'
Board init...
Primary session connecting...
Selected CORE=S32G399A_M7_0
warning: No executable has been specified and target does not support
determining executable automatically. Try using the "file" command.

Program received signal SIGINT, Interrupt.
0x34020404 in ?? ()
I2C Init...
Initialized board for RCON s32g3xx_i2c_RCON.py.
^Error:No module named 'math':RCONUndefinedError(704) File "<string>", line 1, in <module> File "../../../S32Debugger/Debugger/scripts/gdb_extensions/rcon/s32rcon.py", line 106, in rcon _rcon_initialization().unwrap() File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../../utils/errors.py", line 280, in wrapper return Result(Error(errorcode, "%s" % str(e)))^Error:Exception:No module named 'math':RCONUndefinedError(704)
^Error:Exception:No module named 'math':RCONUndefinedError(704)
Python Exception <class 'errors.GtaLibException'>:
Error occurred in Python.

Re: Program Serial RCON using S32 Debug Probe with S32G3 - Python errors

alejandro_e — Thu, 23 Oct 2025 02:34:40 GMT

Hello @amerkle,

Thanks for reaching out to us. Please allow me some time to investigate this issue, I will get back to you as soon as possible.

Thanks for your patience

Re: Program Serial RCON using S32 Debug Probe with S32G3 - Python errors

alejandro_e — Fri, 24 Oct 2025 03:11:06 GMT

Hello @amerkle,

During this time I tried following the mentioned tutorial, I even tried alternative methods, however, I was not able to run the RCON script. I will need to escalate this internally for an in depth analysis. In my experience, problems related to S32DS take some time, so I apologize in advance.

Thanks for your patience, I will get back to you when I have relevant updates.

Re: Program Serial RCON using S32 Debug Probe with S32G3 - Python errors

amerkle — Tue, 28 Oct 2025 10:38:03 GMT

Adding "/c/NXP/S32DS.3.6.2/S32DS/build_tools/msys32/mingw64/lib/python3.10/lib-dynload/" additional to PYTHONPATH, it seems the rcon script runs now.

Thats my current setting of the required environment variables:

export PYTHONPATH=/c/NXP/S32DS.3.6.2/S32DS/build_tools/msys32/mingw64/lib/python3.10/:/c/NXP/S32DS.3.6.2/S32DS/build_tools/msys32/mingw64/lib/python3.10/site-packages/:/c/NXP/S32DS.3.6.2/S32DS/build_tools/msys32/mingw64/lib/python3.10/lib-dynload/
export PYTHONHOME=/c/NXP/S32DS.3.6.2/S32DS/build_tools/msys32/mingw64/lib/python3.10/:/c/NXP/S32DS.3.6.2/S32DS/build_tools/msys32/mingw64/lib/python3.10/site-packages/

Re: Program Serial RCON using S32 Debug Probe with S32G3 - Python errors

alejandro_e — Tue, 28 Oct 2025 19:10:25 GMT

Hello @amerkle,

Sorry I did not notice the format of the paths before. but are you using a terminal that is not the windows command prompt? The steps are mean to be executed in windows command prompt.

Although I have not been able to run the RCON scripts. While investigating this issue with my colleague in the internal team, he has shared some important info:

The board needs to be an EVB, if you are using an RDB, you will need to modify some resistors. Please check the following part of the schematics:
You need to close all instances of CCS.

Since you mentioned that you can already use the script, you may already know this, however I wanted to share it just in case.

Can you share the output of the command to ensure it is executing correctly?

Thanks

Re: Program Serial RCON using S32 Debug Probe with S32G3 - Python errors

amerkle — Thu, 30 Oct 2025 07:03:22 GMT

Hi @alejandro_e ,

I mentioned in my first post that I am using the Mingw64 terminal provided by the S32 Design Studio. But the original problem is the same in a windows command line shell.

Thanks for the hint regarding the evaluation board, we are using the RDB3 and currrently a colleage is changing the resistors.

Find the output with the rcon script below, but consider that I used there the RDB3 without modification, thats why the I2C connection didn't work.

$ ./arm-none-eabi-gdb-py.exe
GNU gdb (GDB src=ga98a3c7ad40 bld=ga98a3c7ad40 ) 15.1
Copyright (C) 2024 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "--host=x86_64-w64-mingw32 --target=arm-none-eabi".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
Type "apropos word" to search for commands related to "word".
(gdb) source ../../../S32Debugger/Debugger/scripts/gdb_extensions/rcon/s32rcon.py
(gdb) py rcon()
Starting RCON programmer services...
Initializing target...
Running RCON script C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx/s32g3xx_i2c_RCON.py
Board init...
Primary session connecting...
Selected CORE=S32G399A_M7_0
warning: No executable has been specified and target does not support
determining executable automatically. Try using the "file" command.

Program received signal SIGINT, Interrupt.
0x34020404 in ?? ()
I2C Init...
Initialized board for RCON s32g3xx_i2c_RCON.py.
Loaded RCON script.
Available commands:
rcon_help
rcon_read
rcon_write

Use "command" -h for more information and usage.
(rcon)rcon_read 0 4
Reading....
ERROR: No response from slave
ERROR: I2C tx byte fail
RCON data from EEPROM: -0x1
Read complete....

Re: Program Serial RCON using S32 Debug Probe with S32G3 - Python errors

alejandro_e — Thu, 30 Oct 2025 19:42:22 GMT

Hello @amerkle,

Sorry I missed the cygwin detail in the past. As you mentioned I see that now the process is being executed correctly, at least up to the point of the I2C, which should be solved when adding the 0Ohm resistors to close de I2C lines.

For now I am assuming everything works, however, if once you close the I2C lines you encounter any problem, please let me know so I can look into it.

Thanks

Re: Program Serial RCON using S32 Debug Probe with S32G3 - Python errors

amerkle — Fri, 31 Oct 2025 12:27:28 GMT

Hi @alejandro_e ,

here is the log output from a colleague, who tested it now with the RDB3 and the correct resistor setup. We are able to read/write the EEPROM data now.

Do you have any idea about the other errors around?

$ ./arm-none-eabi-gdb-py.exe
GNU gdb (GDB src=g4536f19e181 bld=g4536f19e181 ) 15.1
Copyright (C) 2024 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.
Type "show copying" and "show warranty" for details.
This GDB was configured as "--host=x86_64-w64-mingw32 --target=arm-none-eabi".
Type "show configuration" for configuration details.
For bug reporting instructions, please see:
<https://www.gnu.org/software/gdb/bugs/>.
Find the GDB manual and other documentation resources online at:
<http://www.gnu.org/software/gdb/documentation/>.

For help, type "help".
Type "apropos word" to search for commands related to "word".
(gdb) source ../../../S32Debugger/Debugger/scripts/gdb_extensions/rcon/s32rcon.py
(gdb) py rcon()
Starting RCON programmer services...
Initializing target...
Running RCON script C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx/s32g3xx_i2c_RCON.py
Board init...
Primary session connecting...
Target connection failed. Please re-check the settings.
Processor: S32G3XX
Probe: S32 Debugger TAP (10.64.8.54)
[CCS: Initialization sequence error in command 0xA]
Additional error details:
[GTA: target access error]
Type of the error: [GtaTaErr]
Error code: [1303]
Initialization sequence error at: write_reg32 : addr='0xE000EDF0', value='0xA05F0003'
(called by _prologue in C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx/s32g3xx_init_sequence.py:276), command with number 0xa

--- STACK TRACE OF THE INIT SCRIPTS ---
File "<string>", line 1, in <module>
File "../../../S32Debugger/Debugger/scripts/gdb_extensions/rcon/s32rcon.py", line 106, in rcon
_rcon_initialization().unwrap()
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../../utils/errors.py", line 307, in wrapper
v = func(*args, **kwargs)
File "../../../S32Debugger/Debugger/scripts/gdb_extensions/rcon/s32rcon.py", line 99, in _rcon_initialization
start_rcon_services(argument)
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/scripts/services.py", line 148, in start_rcon_services
return instance.invoke(argument)
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/scripts/services.py", line 103, in invoke
ret = self.start_service(argument)
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/scripts/services.py", line 124, in start_service
ret = start(args)
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/scripts/rcon_init.py", line 135, in start
if internal_start(args) is False:
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/scripts/rcon_init.py", line 37, in internal_start
if internal_initialize_target(args) is False:
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/scripts/rcon_init.py", line 113, in internal_initialize_target
DbgInit.RCON_BOARD_INIT(*setup_args)
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx/s32g3xx_i2c_RCON.py", line 201, in RCON_BOARD_INIT
generic_board.board_init()
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx/s32g3xx_generic_bareboard.py", line 153, in board_init
connect()
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx/s32g3xx_generic_bareboard.py", line 57, in connect
gta_lib.establish_connection(
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx//../utils/gta_lib.py", line 89, in establish_connection
return connect(
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../../utils/errors.py", line 307, in wrapper
v = func(*args, **kwargs)
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx//../utils/gta_lib.py", line 152, in connect
gdb_exec("monitor ctx connect", from_tty=True, errcode=ErrorCode.ConnectError).unwrap()
^Error:Exception:Target connection failed. Please re-check the settings.

Processor: S32G3XX
Probe: S32 Debugger TAP (10.64.8.54)
[CCS: Initialization sequence error in command 0xA]
//
Additional error details:
[GTA: target access error]
:GtaTaErr(1303)

Type of the error: [ConnectError]
Error code: [102]


--- STACK TRACE OF THE INIT SCRIPTS ---
File "<string>", line 1, in <module>
File "../../../S32Debugger/Debugger/scripts/gdb_extensions/rcon/s32rcon.py", line 106, in rcon
_rcon_initialization().unwrap()
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../../utils/errors.py", line 307, in wrapper
v = func(*args, **kwargs)
File "../../../S32Debugger/Debugger/scripts/gdb_extensions/rcon/s32rcon.py", line 99, in _rcon_initialization
start_rcon_services(argument)
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/scripts/services.py", line 148, in start_rcon_services
return instance.invoke(argument)
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/scripts/services.py", line 103, in invoke
ret = self.start_service(argument)
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/scripts/services.py", line 124, in start_service
ret = start(args)
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/scripts/rcon_init.py", line 135, in start
if internal_start(args) is False:
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/scripts/rcon_init.py", line 37, in internal_start
if internal_initialize_target(args) is False:
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/scripts/rcon_init.py", line 113, in internal_initialize_target
DbgInit.RCON_BOARD_INIT(*setup_args)
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx/s32g3xx_i2c_RCON.py", line 201, in RCON_BOARD_INIT
generic_board.board_init()
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx/s32g3xx_generic_bareboard.py", line 153, in board_init
connect()
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx/s32g3xx_generic_bareboard.py", line 70, in connect
).unwrap()
^Error:Exception::ConnectError(102)

Type of the error: [RCONUndefinedError]
Error code: [704]


--- STACK TRACE OF THE INIT SCRIPTS ---
File "<string>", line 1, in <module>
File "../../../S32Debugger/Debugger/scripts/gdb_extensions/rcon/s32rcon.py", line 106, in rcon
_rcon_initialization().unwrap()
^Error:Exception::RCONUndefinedError(704)
^Error:Exception::RCONUndefinedError(704)
Python Exception <class 'errors.GtaLibException'>:
Error occurred in Python.
(gdb) py rcon()
Starting RCON programmer services...
Initializing target...
Running RCON script C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/s32g3xx/s32g3xx_i2c_RCON.py
Board init...
Primary session connecting...
Selected CORE=S32G399A_M7_0
warning: No executable has been specified and target does not support
determining executable automatically. Try using the "file" command.

Program received signal SIGINT, Interrupt.
0x34020404 in ?? ()
I2C Init...
Initialized board for RCON s32g3xx_i2c_RCON.py.
Loaded RCON script.
Available commands:
rcon_help
rcon_read
rcon_write

Use "command" -h for more information and usage.
(rcon)rcon_read 0 8
Reading....
Reading... Address: 0x0 Value: 0xff
Reading... Address: 0x1 Value: 0xff
Reading... Address: 0x2 Value: 0xff
Reading... Address: 0x3 Value: 0xff
Reading... Address: 0x4 Value: 0xff
Reading... Address: 0x5 Value: 0xff
Reading... Address: 0x6 Value: 0xff
Reading... Address: 0x7 Value: 0xff
RCON data from EEPROM: 0xffffffffffffffff
Read complete....
(rcon)rcon_write -h
usage: [-h] value

S32DS RCON write command.

positional arguments:
address Start address for the write operation. Must be hexadecimal format.
data RCON value to write

options:
-h, --help show this help message and exit
(rcon)rcon_read 0 1
Reading....
Reading... Address: 0x0 Value: 0xff
RCON data from EEPROM: 0xff
Read complete....
(rcon)rcon_write 0 1
Writing....
F-ERROR: data must be hex sequence.
Type of the error: [RCONParameterError]
Error code: [703]


--- STACK TRACE OF THE INIT SCRIPTS ---
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/gdbcommands/base_command.py", line 53, in invoke
self.execute(self._args)
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/gdbcommands/write_command.py", line 74, in execute
Result(Error(ErrorCode.RCONParameterError,'F-ERROR: data must be hex sequence.')).unwrap()
^Error:Exception:F-ERROR: data must be hex sequence.:RCONParameterError(703)

Type of the error: [RCONUndefinedError]
Error code: [704]


--- STACK TRACE OF THE INIT SCRIPTS ---
File "C:/NXP/S32DS.3.6.2/S32DS/tools/S32Debugger/Debugger/scripts/gdb_extensions/rcon/../rcon/gdbcommands/base_command.py", line 56, in invoke
Result(Error(ErrorCode.RCONUndefinedError, str(e))).unwrap()
^Error:Exception::RCONUndefinedError(704)
^Error:Exception::RCONUndefinedError(704)
Python Exception <class 'errors.GtaLibException'>:
Error occurred in Python.
(rcon)rcon_write 0 0x1
Writing....
Writting... Address: 0x0 Value: 0x1
Write complete....
(rcon)rcon_read 0 8
Reading....
Reading... Address: 0x0 Value: 0x1
Reading... Address: 0x1 Value: 0xff
Reading... Address: 0x2 Value: 0xff
Reading... Address: 0x3 Value: 0xff
Reading... Address: 0x4 Value: 0xff
Reading... Address: 0x5 Value: 0xff
Reading... Address: 0x6 Value: 0xff
Reading... Address: 0x7 Value: 0xff
RCON data from EEPROM: 0xffffffffffffff01
Read complete....
(rcon)

Re: Program Serial RCON using S32 Debug Probe with S32G3 - Python errors

alejandro_e — Fri, 31 Oct 2025 18:26:02 GMT

Hello @amerkle,

I have seen the errors Error code: [1303] and Error code: [102] sometimes when debugging in S32 Design Studio, they usually disappear when rebooting the board and the debugger. However I have not seen Error code: [704] and Error code: [703].

Do this errors appear each time you try to read/write to the RDB3? or are the sporadic?

Thanks

Re: Program Serial RCON using S32 Debug Probe with S32G3 - Python errors

amerkle — Mon, 03 Nov 2025 08:21:52 GMT

Hi @alejandro_e ,

we see the error 703 and 704 always once in the first call of the script. It seems they have no influence on reading/writing the EEPROM, they just a give bad feeling it looks like.

Re: Program Serial RCON using S32 Debug Probe with S32G3 - Python errors

alejandro_e — Mon, 03 Nov 2025 23:54:32 GMT

Hello @amerkle,

Let me check with my colleague in the internal team if there is something to take in consideration with those errors.

Thanks for your patience

Re: Program Serial RCON using S32 Debug Probe with S32G3 - Python errors

alejandro_e — Tue, 04 Nov 2025 18:43:36 GMT

Hello @amerkle,

From the discussion with my colleague the problem seems to be the format of the rcon_write parameters, they should always be with the "0x" prefix, for example:

rcon_write 0 0x1

In your log, I see the two formats, with and without "0x", and the instance without the prefix has the error.

Furthermore, to avoid all errors, please follow these general steps:

Connect the board to the S32 Debug Probe via JTAG, then connect the USB connector of the S32 Debug Probe.
Wait for the S32 Debug Probe TX/RX LED to start flashing green.
Start GDB Server. (C:\NXP\S32DS.3.6.2\S32DS\tools\S32Debugger\Debugger\Server\gta\gta.exe)
Power on the board and start command prompt

Please let me know if the behavior changed.

Re: Program Serial RCON using S32 Debug Probe with S32G3 - Python errors

amerkle — Wed, 05 Nov 2025 12:19:26 GMT

Hi @alejandro_e ,

ok, thanks for clarification. Yes, you are right the values are expected with "0x" notation.

I think we can stop here, as it works as expected.

Thanks for your support!

Kind regards

Andreas

Re: Program Serial RCON using S32 Debug Probe with S32G3 - Python errors

alejandro_e — Wed, 05 Nov 2025 16:59:24 GMT

Hello @amerkle,

Perfect! I am glad you were able to solve all your problems.

Thanks for selecting my last reply as an accepted solution.

Best regards

Re: Program Serial RCON using S32 Debug Probe with S32G3 - Python errors

Herbert_M_Triceratops — Tue, 27 Jan 2026 21:17:24 GMT

whether it is an NXP board or a custom board, if you have access to S32G2 Serial Mode (meaning that you can put the S32G2 into Serial Mode and you have physical access to the UART), you should absolutely NOT waste your time with the S32 Design Studio and Probe and Python and scripts, and all the mess that this involves

the S32 Flash Tool alone can read and write Serial RCON EEPROM, with only a Serial/UART connection (no Probe); the webpage for the S32 Flash Tool does not list it explicitly, but the tool can do it; two mouse-clicks and you are done; I did not see any such recommendation elsewhere on the internet, so I am making that recommendation here

Re: Program Serial RCON using S32 Debug Probe with S32G3 - Python errors

Herbert_M_Triceratops — Fri, 30 Jan 2026 16:22:42 GMT

seems that this functionality was added recently to the S32 Flash Tool, that's why not many people know about it; anyway, it is available in version 2.3.4 of the S32 Flash Tool

Re: Program Serial RCON using S32 Debug Probe with S32G3 - Python errors

Herbert_M_Triceratops — Tue, 03 Feb 2026 16:41:55 GMT

I forgot to mention one detail that is useful to know: the RCON feature of the S32 Flash Tool allows you to specify a multi-byte value, such as the entire 32-bit RCON in Hexadecimal Format, but it will write it to EEPROM in a Big-Endian way, i.e. if your particular RCON is 0x12345678 then 0x12 will be written to address 0 of EEPROM, not 0x78; in my opinion, this is "wrong" because this is an S32-specific tool and the S32G reads RCON EEPROM in a Little-Endian way, interpreting the Byte at address 0 as RCON[7:0] etc; but, it's not a big problem, easy to accommodate

Re: Program Serial RCON using S32 Debug Probe with S32G3 - Python errors

amerkle — Tue, 17 Feb 2026 08:51:53 GMT

Thanks for pointing this possibility out, that was new for us.