2023-12-01 10:44 PM
Hai,
I'm working in a project with STM32L433CCU3 controller,but controller not responding in a usual manner.Some time it responded normal and then it changes and it throwing error in STM32-IDE as below
Break at address "0x1fff3f36" with no debug information available, or outside of program code.
and STM32L433CCU3 pin no:44( BOOT 0) connected with Pull-down resistor but gives OUTPUT HIGH.
Anyone help me with this,what will be the solution..!
Thanks
M.Gokulraj
2023-12-02 01:07 AM
What value of pull down?
Check netlist for other connectivity.
Check blank or solder test board for shorts.
2023-12-02 01:12 AM
BOOT0 is shared with PH3, then based on code and option bytes ... read
2023-12-02 01:34 AM
I have tried by using 10K ,4.7K, 1K Resistors to pull down,but still BOOT0 pin is HIGH.
2023-12-02 03:31 AM
Look to other causes..
2023-12-02 04:25 AM
Shall i start with checking the power system line by removing controller from board or checking the all GPIO pins in controller.
If you have any other suggestion,please let me know.
2023-12-02 06:07 AM
Sounds like BOOT0/PH3 is shorted to VCC.
2023-12-02 06:39 AM
Couldn't you measure the resistance between BOOT0 and VCC / GND ?
Provide salient portions of netlist, pcb, schematic, etc ?
Review Option Bytes per M&M
Perhaps add serial output to print and decode option bytes, and internal states, without the debugger.
Apply basic debugging and diagnostic for a board, create a check list of what you've checked, and what you have OBSERVED, so people other than you can make weighted opinions on possible causes.