The CY8CKIT-142 module communicates and runs the test firmware ok when mounted on the CY8CKIT-042 BLE KIT. When I place it on my own baseboard, the CYsmart application does not see the module. On the custom designed baseboard, I am providing 5 volts and ground connections to VDDD and the module GND. When the module is installed on the custom baseboard, I can measure 5 volts on VDDD, VDDA and VDDR. What other pins should I supply with voltages?. I measured a 3.3 volt on J10 pin 15 (P2_6) and 4 volts on J11 pin 12 (P1_4) on the BLE kit without the module connected.
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Apart from that, lok at the schematic that is in the -042 kit users guide. There you can see all the connections from the base board to the module. But I used the module on a custom baseboard by myself, and providing proper voltage (3.3V for me) was enough.