Interrupt based writing on SD card uisng FATFs?

[Amit_Kumar1]

Hi

I am using K60 connected with SD card and using FATfs library present in Processor Expert. I want to write to file as the interrupt is triggered in Event.c. but I am having problem in writing to the file in different functions.

regards

Amit Kumar

[Petr_H]

Hi,

I'm not sure if I inderstand but I think that calling file methods in interrupt context is not a good idea. You should just set some flag and handle that in the main loop (or task). Is this what you meant?

Best regards

Petr Hradsky

Processor Expert Support Team

[Amit_Kumar1]

Hi

Actually I am having various sensors which is sending data at around 100Hz which is time stamped so for different sensors I wanted to have separate files with time stamped so for higher accuracy I wanted it be interrupt based in ISR function. By Flag Sometimes I am getting delays and it is not in specifications with time stamp. Also when I dump the flash buffer to the SD card i.e using FSYNC function it takes around 20 ms to to write it to fie So I wanted this also to happen ones in some time duration in ISR. right now I am doing using flag from ISR. so the function fsync is not working in the ISR.

Regards

Amit Kumar