MPC5xxxのトピックRe: About program running when FCCU initialization problem

About program running when FCCU initialization problem

DELPHI_Eric — Fri, 22 Apr 2016 02:34:31 GMT

Hi,everyone:

When debugging program running, always occasional card while (FCCU.CTRL.B.OPS! = 0x3) in FCCU_init the debug tool to see fault address 00001000 and 00410000, the NCF [16], NCF [ 22], NCF [44] can not afford to clear the fault, Looking forward to your reply, thank you！

Re: About program running when FCCU initialization problem

petervlna — Fri, 22 Apr 2016 06:42:18 GMT

Hi,

Your FCCU is in fault state according to your code.

To solve this issue please follow my FCCU guide.

MPC574xP - FCCU configuration guide

Peter

Re: About program running when FCCU initialization problem

DELPHI_Eric — Fri, 22 Apr 2016 07:52:06 GMT

OK，Dear Peter,Thank you for your reply.But as you said, to guide and DEMO, sometimes data or will be written into each interval can be written once again they can not be written, and then can be written.

Is SWT must be disabled problem?

Re: About program running when FCCU initialization problem

petervlna — Fri, 22 Apr 2016 08:28:34 GMT

I recommend you to disable SWT before entering CONFIG state.

Clear the fault in FCCU NCFSx registers.

As described in guide:

Then your FCCU will be in normal state and then you can enter CONFIG state:

Re: About program running when FCCU initialization problem

DELPHI_Eric — Fri, 22 Apr 2016 08:38:37 GMT

Dear Peter,glad your reply.But I have disabled software watchdog before entering CONFIG state,as the following:

Re: About program running when FCCU initialization problem

DELPHI_Eric — Mon, 25 Apr 2016 03:14:15 GMT

When injected into a fake failure before commissioning through. But injecting a fake uncorrectable flash ecc fault will be through, not passing through a phenomenon does not pass.In “while(FCCU.CTRL.B.OPS != 0x3);” not passed.When the initial programming is not passed, the next power-down re-burn through.

Re: About program running when FCCU initialization problem

petervlna — Mon, 25 Apr 2016 12:08:54 GMT

You cannot pass the:

while(FCCU.CTRL.B.OPS != 0x3);

because your FCCU NCFSx registers still hold an active fault.

Make sure all your faults are cleared before entering any FCCU configuration mode.

Peter

Re: About program running when FCCU initialization problem

DELPHI_Eric — Wed, 27 Apr 2016 03:28:22 GMT

Hi! Peter,

I find,A case,can through debugging while(FCCU.CTRL.B.OPS != 0x3)

	ClearMEMU_ERR_FLAG();
	ClearNCF();
	ClearNCF();

	FCCU_Init();
	test_22 = MEMU_handler();
//
	Generate_noncorrectable_FLASH_ECC_error();

But,enter configuration mode and have a relationship with ClearMEMU_ERR_FLAG(); ?

So can you tell me why?

Thanks!