topic Re: Connection closed by the GDB server. in S32K

Connection closed by the GDB server.

hajianik — Wed, 29 Jan 2020 23:14:28 GMT

I'm using design studio, target is S32K146 , I was loading and running my project fine last night.

However when I tried to load and run again this morning, I keep getting the following:

Connection closed by the GDB server. and it fails to go through

This does not happen with other projects, I saw an earlier post recommending removing all the break points but that did not work for me.

What causes this to happen?

Thanks,

Koorosh Hajiani

Re: Connection closed by the GDB server.

danielmartynek — Thu, 30 Jan 2020 11:56:11 GMT

HI Koorosh,

What debugger do you use?

Could you please specify what exactly was loaded the last time?

Thank you,

BR, Daniel

Re: Connection closed by the GDB server.

hajianik — Thu, 30 Jan 2020 17:04:17 GMT

I'm using design studio for S32K .

I had a piece of code to partition the part (S32K146) , LAUNCHING THE COMMAND FROM RAM.

DID NOT ENABLE THE SECURITY, even when I comment the code out the problem persist.

I can load and run any other project without an issue . even my partition code was loading and running fine until the last morning.

here is the code to partition:

#if 0

uint8_t configure_part_CSEc(void)

{

uint8_t flash_error_status=0;

while((FTFC->FSTAT & FTFC_FSTAT_CCIF_MASK) != FTFC_FSTAT_CCIF_MASK); /* Wait until any ongoing flash operation is completed */

FTFC->FSTAT = (FTFC_FSTAT_FPVIOL_MASK | FTFC_FSTAT_ACCERR_MASK); /* Write 1 to clear error flags */

FTFC->FCCOB[3] = 0x80; /* FCCOB0 = 0x80, program partition command */

FTFC->FCCOB[2] = 0x03; /* FCCOB1 = 2b11, 20 keys */

FTFC->FCCOB[1] = 0x00; /* FCCOB2 = 0x00, SFE = 0, VERIFY_ONLY attribute functionality disable */

FTFC->FCCOB[0] = 0x00; /* FCCOB3 = 0x00, FlexRAM will be loaded with valid EEPROM data during reset sequence */

FTFC->FCCOB[7] = 0x02; /* FCCOB4 = 0x02, 4k EEPROM Data Set Size */

FTFC->FCCOB[6] = 0x04; /* FCCOB5 = 0x04, no data flash, 64k(all) EEPROM backup */

//FTFC->FSTAT = FTFC_FSTAT_CCIF_MASK; /* Start command execution by writing 1 to clear CCIF bit */

//while((FTFC->FSTAT & FTFC_FSTAT_CCIF_MASK) != FTFC_FSTAT_CCIF_MASK); /* Wait until ongoing flash operation is completed */

flash_error_status = FTFC->FSTAT; /* Read the flash status register for any Execution Error */

return flash_error_status;

}

//copied to RAM

void launch_flsh_com(void)

{

#if 1

#pragma asm

ldr r1, =0x40020000 ; <run_ocs_volt_once..C.3A.5CFramework_ZERV_v00.2E02.5CApplications.5CZERV_Framework.5CAppl.5Cobj.5CINF_CDD.>)

movs r0, #128 ; 0x80

strb r0, [r1, #0]

L1:

ldrb r0, [r1, #0]

lsls r0, r0, #24

bpl L1

; bx lr

#pragma endasm

#endif

#if 0

uint8_t configure_part_CSEc(void)

{

uint8_t flash_error_status=0;

while((FTFC->FSTAT & FTFC_FSTAT_CCIF_MASK) != FTFC_FSTAT_CCIF_MASK); /* Wait until any ongoing flash operation is completed */

FTFC->FSTAT = (FTFC_FSTAT_FPVIOL_MASK | FTFC_FSTAT_ACCERR_MASK); /* Write 1 to clear error flags */

FTFC->FCCOB[3] = 0x80; /* FCCOB0 = 0x80, program partition command */

FTFC->FCCOB[2] = 0x03; /* FCCOB1 = 2b11, 20 keys */

FTFC->FCCOB[1] = 0x00; /* FCCOB2 = 0x00, SFE = 0, VERIFY_ONLY attribute functionality disable */

FTFC->FCCOB[0] = 0x00; /* FCCOB3 = 0x00, FlexRAM will be loaded with valid EEPROM data during reset sequence */

FTFC->FCCOB[7] = 0x02; /* FCCOB4 = 0x02, 4k EEPROM Data Set Size */

FTFC->FCCOB[6] = 0x04; /* FCCOB5 = 0x04, no data flash, 64k(all) EEPROM backup */

//FTFC->FSTAT = FTFC_FSTAT_CCIF_MASK; /* Start command execution by writing 1 to clear CCIF bit */

//while((FTFC->FSTAT & FTFC_FSTAT_CCIF_MASK) != FTFC_FSTAT_CCIF_MASK); /* Wait until ongoing flash operation is completed */

flash_error_status = FTFC->FSTAT; /* Read the flash status register for any Execution Error */

return flash_error_status;

}

void launch_flsh_com(void)

{

#if 1

#pragma asm

ldr r1,=0x40020000

movs r0, #128 ; 0x80

strb r0, [r1, #0]

L1:

ldrb r0, [r1, #0]

lsls r0, r0, #24

bpl L1

; bx lr

#pragma endasm

#endif

// FTFC->FSTAT = FTFC_FSTAT_CCIF_MASK; /* Start command execution by writing 1 to clear CCIF bit */

// while((FTFC->FSTAT & FTFC_FSTAT_CCIF_MASK) != FTFC_FSTAT_CCIF_MASK); /* Wait until ongoing flash operation is completed */

}

Thanks,

Re: Connection closed by the GDB server.

hajianik — Thu, 30 Jan 2020 17:18:39 GMT

Hi Daniel

It is P&E open SDA using design studio

Re: Connection closed by the GDB server.

danielmartynek — Fri, 31 Jan 2020 15:13:07 GMT

Hi Koorosh,

I see that you posted it here as well:

PEG SERVER

From the console:

Does the project load something to DFlash?

If so, the MCU has been already partitioned for EEPROM and CSEc (key space allocated), you would need to erase the partition with this commands:

AN12130 Production Flash Programming Best Practices for S32K1xxMCUs

BR, Daniel

Re: Connection closed by the GDB server.

hajianik — Fri, 31 Jan 2020 17:12:59 GMT

Thanks Daniel,

Thank you for your answer.

the part is patitioned and the Csec is enabled by the following: FTFC->FCCOB[2] = 0x03; /* FCCOB1 = 2b11, 20 keys */

However my question is howcome I can load and run other projects which are not enabling CSEC OR PARTITION THE PART.

Thanks,

Koorosh Hajiani

Re: Connection closed by the GDB server.

danielmartynek — Mon, 03 Feb 2020 09:15:31 GMT

Hi Koorosh,

To my understanding, when the programmer is loading this project, it tries to reprogram DFlash, whereas all the other project don't. Could you share the project? You can create a ticket if you don't want to share it here.

https://community.nxp.com/docs/DOC-329745

Thanks,

BR, Daniel

Re: Connection closed by the GDB server.

hajianik — Mon, 03 Feb 2020 17:31:11 GMT

Hi Daniel,

Thanks for your response,

Here is what I don't understand , the same project that the CSEC is enabled ,by doing FTFC->FCCOB[2] = 0x03, I would change it to FTFC->FCCOB[2] = 0x00 or even at some point I commented out the whole portioning ,but still It would not work,

I can share the file and the linker file , by the way I'm using GREEN HILL compiler, the project itself is huge AND MY BOSS does not give me the per mission .

I'd send you the file where this is done + the linker file where I launched the command from:

by the way, how do I attach a file to this question.

Thanks,

Koorosh Hajiani

Re: Connection closed by the GDB server.

danielmartynek — Tue, 04 Feb 2020 09:10:51 GMT

Hi Koorosh,

It does not matter what the SW is doing once it has been programmed, but what is being loaded during the programming. That's what I understand from the console output.

Maybe S-record of the project would help.

There is this Use advanced editor option:

BR, Daniel