Tool/software:
Hi. Would you please clarify how to activate RLD OFF with a build-in RLD comparator?
At the beginning I initialize ADS1198 with CONFIG3 = 0xEC
When I want to check RLD electrode status, I stop continuous reading SDATAC, then write to the register CONFIG3 0xEB (or 0xEA) instead of 0xEC, to switch off RLD buffer and enable RLD comparator. (switch off RLD buff bit2 = 0, enable RLD_SENS bit1 = 1).
Than I wait for 50ms and read CONFIG3 register. IF RLD electrode OFF I should read 0xEB, if RLD electrode ON I should read 0xEA.
After that I write to CONFIG3 = 0xEC again, and start continuous read mode RDATAC.
Am I right?
What I get:
-- when I work with ECG simulator, I read CONFIG3 = 0xEA when RLD ON and 0xEB when RLD OFF (other electrodes ON - OFF system works perfect). It should be vice versa, as far as I understand?
--when I try RLD off at the body with real electrodes: I read 0xEA, sometimes 0xEB without any correlation with RLD status.
Would you please suggest where I am wrong?
With regards
Vladimir