ADS1299: ADS1299

Hi,

The statement of the question is not so clear. Hope you can clarify more.

Are you referring to the "pseudo code section"?

If yes, you are probably correct; the pseudo code section may have mistakes.

In the meantime, I am guess the following might answer your questions?

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To use DC current lead off detection,

set LOFF: Lead-Off Control Register (address = 04h) 

3:2 ILEAD_OFF[1:0] to the current you want based on the experiments and tests and observations

and

1:0 FLEAD_OFF[1:0] to 00 for DC lead off detection

To use AC current lead off detection,

set LOFF: Lead-Off Control Register (address = 04h) 

3:2 ILEAD_OFF[1:0] to the current you want based on the experiments and tests and observations

and

1:0 FLEAD_OFF[1:0] to any value other than 00 to select the AC current frequency based on the experiments and tests and observations

and yes,

you could refer to this e2e post and/or use EVM to validate -

e2e.ti.com/.../ads1299-why-does-datasheet-example-for-dc-lead-off-detection-enable-ac-lead-off-detection-at-fdr-4

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If above doesn't answer your questions, please clarify what are you asking.

Thanks

Yes, I refer to link mentioned to your answer, but as I see in this link, they recommend to set bits [1:0] to value 3 for DC lead off. It contradicts with datasheet and your answer. What is correct? I know that in ADS1298 it MUST be 3. With ADS1298 I familiar very well. But in ADS1299 it is not clear because these contradictions

For DC lead-off detection -

data sheet -

EVM GUI -

corresponding register settings -

bit 4 stay 0 and bit[1:0] are 00.

Thanks