S32KのトピックRe: S32K3

S32K3

ye_jiawei — Mon, 08 Nov 2021 08:01:47 GMT

I want to use Jlink on S32K344, but the current board simulation is not normal, I want to know when it can be resolved?

Re: S32K3

Senlent — Mon, 08 Nov 2021 09:55:40 GMT

For now, J-LINK does not support for S32K3 in S32 Design Studio, and I have confirmed with the AE team, the specific release time is unclear.

The latest Ozone provided by Segger's official website supports S32K3, and colleagues from AE have confirmed this.

BR!

Jim,

Re: S32K3

ye_jiawei — Mon, 08 Nov 2021 11:23:50 GMT

I have tried to use Ozone for simulation, but there was still a hardware error at the beginning. Could you please help me ask what is the wrong setting or what is the problem? Thank you！

Re: S32K3

Senlent — Tue, 09 Nov 2021 03:24:33 GMT

Hi@ye_jiawei

Can you describe the problem you encountered clearly? For example, screenshots or debug Log information. I will help you record the current problem.

As I know so far, S32K3 does not fully support Segger. If there is an update, I will notify you in time.

update:‎05-18-2021

BR!

Jim,

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Re: S32K3

ye_jiawei — Tue, 09 Nov 2021 06:48:41 GMT

The following two graphs are debug error messages.

Re: S32K3

Senlent — Tue, 09 Nov 2021 08:14:24 GMT

Hi@ye_jiawei

According to the description of the debugger error exception message.

https://wiki.segger.com/Cortex-M_Fault#HardFault_Status_Register_.28HFSR.29

UsageFault Status Register (UFSR)

The UFSR is a 16-bit pseudo-register, part of the Configurable Fault Status Register (CFSR) at address 0xE000ED28. It can also be directly accessed with halfword access to 0xE000ED2A.

Bitfields:

[9] DIVBYZERO  - If 1, SDIV or UDIV instruction executed with divisor 0.
[8] UNALIGNED  - If 1, LDM, STM, LDRD, STRD on unaligned address executed, or single load or store executed when enabled to trap.
[3] NOCP       - If 1, access to unsupported (e.g. not available or not enabled) coprocessor.
[2] INVPC      - If 1, illegal or invalid EXC_RETURN value load to PC.
[1] INVSTATE   - If 1, execution in invalid state. E.g. Thumb bit not set in EPSR, or invalid IT state in EPSR.
[0] UNDEFINSTR - If 1, execution of undefined instruction.

UsageFault Examples

Undefined Instruction Execution

/*********************************************************************
*
*       _UndefInst()
*
*  Function description
*   Trigger a UsageFault or HardFault by executing an undefined instruction.
*
*  Additional Information
*    UsageFault is triggered on execution at the invalid address.
*    Related registers on hard fault:
*      HFSR = 0x40000000
*        FORCED = 1           - UsageFault escalated to HardFault
*      UFSR = 0x0001
*        UNDEFINSTR = 1       - Undefined instruction executed
*/
static int _UndefInst(void) {
  static const unsigned short _UDF[4] = {0xDEAD, 0xDEAD, 0xDEAD, 0xDEAD}; // 0xDEAD: UDF #<imm> (permanently undefined)
  int r;
  int (*pF)(void);

  pF = (int(*)(void))(((char*)&_UDF) + 1);
  //  4B05        ldr r3, =0x08001C18 <_UDF> <- Load address of "RAM Code" instructions
  //  3301        adds r3, #1                <- Make sure Thumb bit is set
  r = pF();
  //  4798        blx r3                     <- Call "RAM Code", will execute UDF instruction and raise exception
  //  9000        str r0, [sp]
  return r;
}

It seems that this is not a problem caused by the debugger, please check if the code has similar problems.

BR!

Jim,

Re: S32K3

ye_jiawei — Tue, 09 Nov 2021 09:04:11 GMT

I used the program of SDK package, which has the same problem, but these programs can run normally through PE. I hope you can help solve it. We basically used JLINK for debugging in the later stage. Thank you very much!

Re: S32K3

Senlent — Tue, 09 Nov 2021 09:30:16 GMT

Hi@ye_jiawei

I will report your questions to the AE team, and I will update you in time.

Thank you for your feedback.

BR!

Jim,

Re: S32K3

ye_jiawei — Tue, 09 Nov 2021 10:57:00 GMT

Ok, thank you very much！

Re: S32K3

Senlent — Wed, 10 Nov 2021 07:23:13 GMT

Hi@ye_jiawei

I communicated with members of the AE team that the routines in the IDE do not yet support J-LINK. It may be supported in the next version. If there is a new message, I will notify you via email.

BR!

Jim,

Re: S32K3

VPrakash — Wed, 04 Sep 2024 08:21:36 GMT

Hi,

Can you please confirm whether S32K312 supports the segger fully as of now? and if so, the support related to S32K312 [ With FreeRTOS ] - where we can find?

Thanks

Prakash V

Re: S32K3

VPrakash — Wed, 13 Nov 2024 10:02:48 GMT

Hi, Please provide the support for Integrating the seggerview to enable the continuous recording through UART[S32K312 Platform] and tell me if it is supported for S32K312 platform with FREERtos enabled or not.