Following the 2-Wire Bioimpedance Block Diagram in AN-1557, I found that the correct T-switch and N-switch settings should be:
pBIOZCfg->NswitchSel = SWN_AIN1;
pBIOZCfg->TswitchSel = SWT_AIN1 | SWT_TRTIA;
The change resulted in the output of the BIOZ-2Wire application at this commit that was different from the output in the application note (AN-1557) in section 2-WIRE BIOIMPEDANCE.
Could you clarify this issue?