CCS/UCD3138: How to set the register ,FeCtrl0Regs.RAMPSTAT.bit.RAMP_COMP_INT_STATUS to 1?

Hello

This bit is set when a ramp has finished. It is read only, so it's value is set by the UCD hardware. 

Typically, it is polled in the code while waiting for a ramp to complete, for example during soft-start, if you check our EVM codes you will see it being used in this manner, for example, this is a code snippet from our HSFB EVM code

inline void handle_vout_ramp_up_state(void)
{
    fault_handler();

    if(FeCtrl0Regs.RAMPSTAT.bit.RAMP_COMP_INT_STATUS == 1 )
    {

Best Regards

Cormac

This is a status bit, the bit is set when the ramp mechanism completes its ramp.

For example if ramp mechanism is used to ramp up the value of voltage reference (Front End's DAC), then this bit is set when the DAC ramp is set to the final reference voltage. This bit is read only and can not be set by firmware/manually.

Another use of ramp mechanism is in conjunction with synchronous rectifiers soft on/off.

Regards,