Inconsistent write speeds to SD card

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Inconsistent write speeds to SD card

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MattJCole
Contributor V

 

Processor: MPC5748G

FatFs: version 0.14

FasFs Revision ID: 86606

SDK version: S32_SDK_C55

 

Is there a way to make the time is takes to write to the SD card more consistent. I am writing 1362 bytes every 100 milliseconds. Occasionally it will take about 200 milliseconds to write to the SD card. Is there any settings I can change that will make the write speed more consistent, or a way to have the f_write be non-blocking and I check to see if the write is complete that way I am not holding up the thread or any other threads.

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davidtosenovjan
NXP TechSupport
NXP TechSupport

I am apologizing but I wasn't able to get in tough with responsible person for this driver as he is out of office until middle of January.

In the meanwhile you could possibly read following thread, if it is useful:
https://community.nxp.com/t5/S32-SDK/how-can-I-prevent-corruption-in-sd-card-writes-MPC5748G/m-p/102...

 

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