Maintain Microprocessor (STM32F7) Code After Power Off

[uranyumx]

Hello,

I developed a custom-designed system with an STM32F767 microprocessor and controlled its parameters with a user interface through a Bluetooth module. When I power off then power on the system, I couldn't communicate with the circuit board. Is there a way to store data without affecting power off?

Edit:
Is there a way to store codes without affecting power off?

Thank you,

 

[uranyumx]

@Aussie Susan
I am using SWD. I attached my debugger connector design and Boot0 connection. Yes, it is similar with the reference design. But I confused a little bit about NJRST. Should I connect or not based on the reference document?

 

[uranyumx]

Thank you @Aussie Susan and @KlausST and others for your comments! The problem was solved with connecting 0.1 uF capacitor to between the NRST pin and the GND.

 

[Aussie Susan]

Glad you have it sorted.
Personally I would just tie BOOT0 and BOOT1 to ground and connect NRST, SWDIO and SWCLK to the ST-Link connector, and pull the NRST pin high with a suitable resistor (possibly with a switch to ground of you want the 'reset' function).
Susan