Option Byte failed during connection of MCU

[Amit_Korgaonkar]

11:15:51 : UR connection mode is defined with the HWrst reset mode
11:15:52 : ST-LINK SN : 54FF6C067583515630121881
11:15:52 : ST-LINK FW : V2J43S7
11:15:52 : Board : --
11:15:52 : Voltage : 3.25V
11:15:52 : SWD freq : 4000 KHz
11:15:52 : Connect mode: Hot Plug
11:15:52 : Reset mode : Software reset
11:15:52 : Device ID : 0x451
11:15:52 : Revision ID : Rev Z
11:15:52 : Debug in Low Power mode is not supported for this device.
11:15:52 : UPLOADING OPTION BYTES DATA ...
11:15:52 : Bank : 0x00
11:15:52 : Address : 0x40023c14
11:15:52 : Size : 8 Bytes
11:15:52 : Error: Uploading Option Bytes bank: 0 failed
11:15:52 : Error: Initializing the Option Bytes failed
11:15:52 : Disconnected from device.
this is the log display from STM32CubeProgrammer , when i try to connect the mcu to stlink for flashing code i get this error.
i am not able to connect the MCU to stlink ,Why?

[Imen.D]

Hello @Amit_Korgaonkar,

Which board are you using?

Check your boot configuration and boot pin connection following the Getting started hardware development application note suitable for the device and board you are using.

[Amit_Korgaonkar]

 The board I am using is 

STM32F765VIT6 

We have done this hardware setup referring to one of the documents .

Application note AN4661

It also has boot 0 and boot 1.

We are making use of boot0 in our implementation. 

Will check again.

Thanks.