CYT4BB8CEE stucks when configured to CY_SYS_VCCD_SOURCE = CY_SYS_VCCD_PMIC

[apeter]

We encounter a problem that if we want to use the PMIC the M0+ core stucks in following function:
SystemInit --> Cy_Power_SwitchToPmic --> SwitchToExternal -->  while((IsSequencerBusy() == true) || (IsEnabled() != true));

Our defined values in system_tviibh8m_cm0plus.c:

#define TIMING_MONZA_PMIC_ENABLE (7)
#define WAIT_CYCLE_WHILE_DISTRIBUTING_CLOCK (50)

My Question now is what can i check or change so it won't stuck there anymore? Or is there a workaround available?

[Apurva_S · Accepted solution]

Hi @apeter 

CYT4BB is TVIIBH4M device. Could you please explain why you are using system_tviibh8m_cm0plus.c file?

If you check system_tviibh4m_cm0plus.c file in our SDL code examples, you will find the below defined values - 

#define TIMING_MONZA_PMIC_ENABLE (4)
#define WAIT_CYCLE_WHILE_DISTRIBUTING_CLOCK (50)

Regards.

[apeter]

Hi @Apurva_S,

Thank you very much for your reply.
We started with a CYT4BF and then switched to a CYT4BB thats why i have used the TVIIBH8M file.

I will check if it works with your defined values and get back to you.