S32KのトピックS32k314 Program Flash P/E cycle

S32k314 Program Flash P/E cycle

sharonfmc93 — Wed, 15 Jan 2025 07:53:45 GMT

Hi Community, whats the assured P/E cycles for program flash of S32k314? from datasheet i could get these numbers.

But the program flash of this MCU is 128KB right? then will it have 100,000 P/E cycles or 1000? It is not shown in the table.

In Davinci configurator MCAL configuration i see it shows 1000, but this is for 1MB and 2MB flash blocks right? which is the Code flash right?

Re: S32k314 Program Flash P/E cycle

sharonfmc93 — Wed, 15 Jan 2025 08:01:01 GMT

sorry i meant Dataflash not program flash

Re: S32k314 Program Flash P/E cycle

Robin_Shen — Wed, 15 Jan 2025 10:40:09 GMT

The Data Flash Memory is a block of 256 KB but 128 KB is reserved to the HSE and this region is protected by hardware.

So it have min 100,000 P/E cycles.

Best Regards,
Robin
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Re: S32k314 Program Flash P/E cycle

sharonfmc93 — Wed, 15 Jan 2025 11:51:33 GMT

Hello Robin, thank you for answering my question. I understand now. Then the value of 1000 specified here (taken over from MCAL) is wrong right?

Re: S32k314 Program Flash P/E cycle

Robin_Shen — Thu, 16 Jan 2025 04:48:54 GMT

Sorry I am not familiar with Davinci configurator, please take a screenshot and tell me under which component I see this information.
Also, which version of S32K3 RTD are you using?

Re: S32k314 Program Flash P/E cycle

sharonfmc93 — Thu, 16 Jan 2025 10:24:27 GMT

Hi Robin, thanks for the reply, we are using MCAL version SW32K3_RTD_4.4_2.0.2.
i see this parameter under FLS, flash driver.

its actually specified within MCAL/RTD delivery -

i'm not sure if this value is really 'used'.

Re: S32k314 Program Flash P/E cycle

Robin_Shen — Fri, 17 Jan 2025 05:09:18 GMT

Sorry, I am not familiar with MCAL.
The data flash of this MCU have 100,000 P/E cycles. But the program flash is 1MB which have 1000 P/E cycles.
I am not sure whether this parameter is for data flash or program flash.
In addition, S32K3 RTD 2.0.x is too old. It is recommended to use the latest version such as S32K3 RTD 5.0.0

Re: S32k314 Program Flash P/E cycle

sharonfmc93 — Mon, 27 Jan 2025 15:48:22 GMT

thanks Robin for the information and suggestion. That answers my question