MFS SDHC Class 4 on K70 Tower Throughput

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MFS SDHC Class 4 on K70 Tower Throughput

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fanl
Contributor I

Hello.

 

I have ran some experiments on the TWR board and achieved 1.3MB/s of write performance on a SDHC Class 4 of 4GB. The experiment was run from a task inside of the MQX RTOS. 

 

Whould you have any performance measurements made on other Freescale's MCU or even on Kinetis as well?

 

If you have any ideas of how to increase the write performance, please, tell me. My application requires 2MB/s of performance.

 

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pavel_chromy
NXP Employee
NXP Employee

Hello,

recently there was extensive performance optimization in MFS and SDCARD/ESDHC drivers, however these changes are not part of upcomming 3.8.1 yet, this is planned to appear in the next release. I belive that 2 MB/s should be achievable with the optimized MFS and drivers.

Regards, Pavel