S32k314 Program Flash P/E cycle

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S32k314 Program Flash P/E cycle

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sharonfmc93
Contributor II

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

sharonfmc93_0-1736927410342.png

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?

sharonfmc93_2-1736927538539.png

 

sharonfmc93_1-1736927516220.png

 

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Robin_Shen
NXP TechSupport
NXP TechSupport

Hi 

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.

Data Flash 256KB 128KB S32K314.png

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

Best Regards,
Robin
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sharonfmc93
Contributor II

sorry i meant Dataflash not program flash

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Robin_Shen
NXP TechSupport
NXP TechSupport

Hi 

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.

Data Flash 256KB 128KB S32K314.png

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

Best Regards,
Robin
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Note:
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- We are following threads for 7 weeks after the last post, later replies are ignored
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sharonfmc93
Contributor II

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?

sharonfmc93_0-1736941841898.png

sharonfmc93_1-1736941874561.png

 

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Robin_Shen
NXP TechSupport
NXP TechSupport

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?

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sharonfmc93
Contributor II

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.

sharonfmc93_0-1737022860575.png


its actually specified within MCAL/RTD delivery - 

sharonfmc93_1-1737022948366.png

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

 

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Robin_Shen
NXP TechSupport
NXP TechSupport

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

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sharonfmc93
Contributor II
thanks Robin for the information and suggestion. That answers my question
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