Does RT 1052/1050 support hard ware FIR filter

[zhangjiansheng]

Hi,

Does RT 1050/1052 have the function of doing FIR/IIR filter function? 

Our current project using the RT 1050/1052 to capture the ECG signal and process. The ECG data need be filtered with FIR multiband filter and 50/60 hz notch filter. I want to know if RT 1052/1050 hard ware support the filter in the hardware level. And if there is any sample code or library for this?

[CarlosCasillas]

Hi,

Regarding hardware implementation of digital filters, you could refer to CMSIS-DSP software library.

On the MCUXpresso SDK, there are included some CMSIS-related examples.

Regarding EKG implementation (with software FIR filters), you could take a look at the following links:

https://www.nxp.com/pages/electrocardiograph-development-kit-for-tower-system:MED-EKG

https://www.nxp.com/docs/en/application-note/AN4323.pdf

https://www.nxp.com/docs/en/application-note/AN4644.pdf

Hope this will be useful for you.
Best regards!
/Carlos
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