ATBTLC1000-ZR: Host communication failure

ATBTLC1000-ZR modules do not communicate with host micro-controller. But, ATBTLC1000-ZR Xpro board is working, what is the issue with the module?

Please check the UART Flow control eFuse configuration on ATBTLC1000-ZR module. Refer to section Hardware Flow Control for 4-Wire Mode eFuse Write Procedure, ATBTLC1000 BluSDK Example Profiles Application User's Guide (http://ww1.microchip.com/downloads/en/DeviceDoc/50002640A.pdf).

If the ATBTLC1000-ZR module eFuse is not configured for "4-wire UART" mode, you can configure the UART Flow control to 4-wire mode (refer to the document pointed above).