I want to use STM32G474 controling a boost converter.
A ADC channel(configered as injected convert) sense the inductor current，I do the configuration like this:
- The ADC channel is triggered by at middle of MOSFET on time;
- The ADC sensed pin is routed as a COMP1 input(COMP1_INP), and a DAC is configured as another input of COMP1(COMP1_INM);
- COMP1's output onfigured as external event of HRTIM;
- HRTIM's reset sourece is selected as the external event described ablove;
- In my code ,I could set a threshold value , when the ADC pin input voltage grater than the set value,the COMP1 output a high level,and than trigger the HRTIM output reset,that is no problem,but when I let the ADC pin sense voltage below the threshold value, the HRTIM can recover its output, that is the CBC's function ;
As I described avlove,the CBC works normaly,but I want to lock
the power after a few counts of CBC protection(such as if the CBC appear 20 times,the HRTIM will never recover its output, unless I deal with it in my code),that is useful when the power output is short;
So can anyone help to answer me how can I achive the limited CBC counter protection?
S
