Hi, I am trying to test Low power Sleep mode on Nucleo-4R5ZI development board. Unfortunately i am getting following errors and not entering into sleep mode and not working Debug mode.

Please help how can i test low power modes on development Nucleo-4R5ZI board. I am working AC6 tool and used the path STM32Cube_FW_L4_V1.13.0\Projects\NUCLEO-L4R5ZI\Examples\PWR\PWR_LPSLEEP

and got the below errors

Info : Previous state query failed, trying to reconnect

Error: jtag status contains invalid mode value - communication failure

Polling target STM32L4R5ZITx.cpu failed, trying to reexamine

Examination failed, GDB will be halted. Polling again in 6300ms