Li,
Are you referring to using the HEATEVM demo? If so, the HEATEVM outputs differential RS485 data on JP18. JP17 should be left unconnected for the demo purpose as these features are not used with the RS485. Unfortunately, the RS232 on PC does not receive…
This spreadsheet tool makes it easy to look up what the recommended pin to pin capable RS-485 transceivers to replace old TI RS-485 transceivers.
/cfs-file/__key/communityserver-discussions-components-files/138/1777.Recommended-New-RS_2D00_485-parts-for…