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Sampling ADC at 1.2 MHz

Question asked by Nadine Sueur on Jun 13, 2016
Latest reply on Jun 16, 2016 by xiangjun.rong

Hi,

 

I'm using a FRDM-K64 board. I need to sample the ADC at 1.2 MHz.

I have use the PDB timer to program hardware interrupt. The program works but

the interruption function takes almost half of the CPU time (47%), and I need more time

for the data computing in the main program.

Is there a better way to do, for sampling ADC at high speed. I was thinking to an hardware FIFO

where the data conversion of the ADC would be stored.

 

Thanks for your help

Best Regards

Nadine

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