How to Find the memory(FLASH) corruption issues in SPC MCUs?

[Mujeeb Shaik]

Posted on February 22, 2017 at 07:00

Hi Team,

I am using SPC560b-Discover board 

IDE-SPC5 Studio, version: 5.2.1

I want to find if any memory corruptions in Flash(dataFlash or CodeFlash) and RAM.

Can you please help me to find the ways of memory corrupt happened,

As i know there will be one stranded  way to find is enable ECC or by default it will be enabled,

If ECC is only the way,

how to enable the ECC in SPC560B family MCUs,If ECC is enabled how we will come to know there is memory corruption is happened.

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Thanks in advance,

Thanks & Regards,

Mujeeb Shaik. 

[Erwan YVIN · Accepted solution]

Posted on February 23, 2017 at 14:37

Hello Mujeeb ,

there is an interruption for that

Vector35 0x088C 4

ECC_DBD_PlatformFlash | ECC_DBD_PlatformRAMPlatform ECC Double Bit DetectionVector36 0x0890 4ECC_SBC_PlatformFlash | ECC_SBC_PlatformRAMPlatform ECC Single Bit Correction

you can enable it.

   Best regards

                   Erwan

[Mujeeb Shaik]

Posted on February 23, 2017 at 16:18

Hi Erwan,

Thanks for your reply,

I understand this,but i need help to generate call backs code for this Interrupts using SPC5 studio,Can you please guide me how to generate the code for this interrupts.

Thanks in advance,

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Thanks & Regards,

Mujeeb Shaik.

[Erwan YVIN]

Posted on February 23, 2017 at 17:20

Hi Mujeeb ,

There is a useful application notes for

http://www.st.com/content/ccc/resource/technical/document/application_note/57/02/dc/4a/8e/66/43/ad/DM000804pdf/files/DM000804pdf/jcr:content/translations/en.DM000804pdf

/* you can set the priority like that */
INTC_PSR(35) = 5;
INTC_PSR(36) = 5;
/* enable ECC error reporting (cf RM)*/
ECSM.ECR.R = ***
�?�?�?�?�?�?�?�?

the handler vector36 and vector35 from IVOR4 should be called.

it is recommended to check IVOR2 too (cf document)

Best Regards

Erwan