How can i inter bootloader of STM32G071 form IIC interface and make it stable?

[JTIAN.1]

Hi! every engineers

i get some problem at BootLoader of STM32G071, Here is detail.

i follow the reference manual to configurat option byte and use IIC interface to search the slaveaddress ，but i just can get right slaveaddress（0XA2） in instance，it is not stable while i send the frame of command.

so i need to know how to inter BootLoader of STM32G071 form IIC interface and let it stable？ thanks for everyone to notice my question�?:smiling_face_with_smiling_eyes: