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ECG Manifestation on ADS1298/TMS320C5515 MDK

Other Parts Discussed in Thread: TMS320C5515, ADS1298

Hello all,

We designed a custom board using the ADS1298 & TMS320C5515 based on the TI MDK reference outlined here:

Everything is working well except we are seeing intermittent behavior that occurs within a 10 second window and then subsides. It is not contained to a certain lead. We believe it's a processing issue in the DSP (the MDK firmware is being used). Below is a screenshot showing the acquisition on our PC program. Is there any suggestion on what could cause this or how to test? We have experimented with changing the firmware filters written in the firmware but that has not resolved the issue. Thank you.