[SOLVED] J-Link Script

ginux · May 20th 2016, 1:02pm

Hi,

Is it possible to create a script wich can read memory value on the target (like mem32 cmd) and perform logic?
Example:

w4 0x10007fe8 0x0
w4 0x10007fec 0x7800
while( mem32 0x10007fec != 0)
print( mem32 0x10007fec )

Because commander script cannot use loop statement and print.

Thx

SEGGER - Niklas · May 20th 2016, 2:20pm

Hi,

Among J-Link command files, there exist J-Link script files. (Also described in UM8001).
In J-Link script files, you have access to a C-like Syntax, but they are mostly limited to substitute J-Link functions for a specific device (for example in order to provide and use a special Reset or Connect function for a specific device.)

A "full" solution is the J-Link SDK: J-Link SDK (Part No 8.08.06 on the price list).

Best regards,
Niklas

ginux · May 20th 2016, 2:31pm

Thx,
But the J-Link script files seems to not work for me... I use a sample from your package and i see no text in the terminal (even with Report("Hello") in the script in the InitTarget function ).
How is it possible? The script is recognised because i dont have the ""missing file" error.

J-Link version 5.12

My cmd: jlink -device LPC1857 -if SWD -speed 1000 -JLinkScriptFile Default.JLinkScript

Script:

/*********************************************************************
*
* InitTarget
*/
void InitTarget(void) {
CPU = LPC1857;
MAIN_ActiveTIF = JLINK_TIF_SWD;

Report("Test");
SYS_Sleep(100000);
MessageBox("Here is a message");

JTAG_ResetPin = 0;
SYS_Sleep(500); // Give pin some time to get low
JTAG_ResetPin = 1;

JTAG_TRSTPin = 0;
SYS_Sleep(500); // Give pin some time to get low
JTAG_TRSTPin = 1;
}

SEGGER - Niklas · May 20th 2016, 3:02pm

Hi,

sorry, but I will not have the time to look into this until Monday.
In the mean time:
Could you post the commander output?
Do other functions work (SetupTarget(), InitEMU())?

Best regards,
Niklas

ginux · May 20th 2016, 5:12pm

Here is what I get when I launch J-Link:
[img]http://img15.hostingpics.net/pics/654250jlinkproblem.png[/img]

With the two function you mentionned it is the same output.

/*********************************************************************
*
* SetupTarget
*/
void SetupTarget(void) {
Report("SetupTarget code");
}

/*********************************************************************
*
* InitEMU
*/
void InitEMU(void) {
Report("InitEMU code");
}

Regards,
ginux

SEGGER - Niklas · May 24th 2016, 5:58pm

Hi,

I just gave it a try and this simple TestFile works perfectly fine:

C Source Code

/*********************************************************************
*
* InitTarget
*/
void InitTarget(void) {
Report("Test");
MessageBox("Here is a message");
}

Named Test.JLinkScript
Called by
"INSTPATH\JLink.exe" -device ATSAMD20J18 -if SWD -speed 4000 -autoconnect 1 -jlinkscriptfile SCRIPTPATH\Test.JLinkScript

Best regards,
Niklas

ginux · May 25th 2016, 12:26pm

Hi,

I tried your script and it seems not working.

What could be the possible source of the problem?

[img]http://img15.hostingpics.net/pics/488914bugjlink.png[/img]
Regards,
ginux

SEGGER - Niklas · May 27th 2016, 7:12pm

Hi,

i just gave it a try and found out that for LPC1857 requires a lot of special handling and there altering using J-Link script files is not possible.
(They are omitted by the DLL if LPC1857 is the selected device.)

Best regards,
Niklas

ginux · May 30th 2016, 9:43am

Ok.

Do you know if script will be available later in a new firmware ?

Regards

C Source Code

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