Hello,
I am trying to test a power down mode. What I currently do is set up the RTI to trigger every 3 seconds and print something out. However, I don't see much of a dip (I see some, about a 0.3 W difference, but I'd expect a little bit more putting it into snooze mode). I put the flash banks and pump into sleep mode, disabled the clocks, and call the WFI instruction.
However I instead just seem to hang. Putting it into Doze mode I can get the terminal back - but the output is all screwed up. Am I following the right procedure?
/* USER CODE BEGIN (26) */
flashWREG->FPAC1 &= ~(0x1);
flashWREG->FPAC2 &= ~(0xFFFF);
flashWREG->FPAC2 |= (0x10);
flashWREG->FBFALLBACK = 0x00000000U;
/* USER CODE END */
/* Disable clock sources */
systemREG1->CSDISSET = SYS_SNOOZE_MODE & 0x000000FFU;
/* Disable clock domains */
systemREG1->CDDIS = (SYS_SNOOZE_MODE >> 8U) & 0x00000FFFU;
/* Idle CPU */
/*SAFETYMCUSW 88 S MR:2.1 <APPROVED> "Assembly in C needed" */
asm(" wfi");
Upon waking up, I execute the following:
flashWREG->FBFALLBACK = 0x00000000U | (SYS_ACTIVE << 14U) | (SYS_ACTIVE << 2U) | SYS_ACTIVE; flashWREG->FPAC1 |= (0x1); /* USER CODE END */ /* Enable clock sources */ systemREG1->CSDISCLR = 0x000000FFU; /* Enable clock domains */ systemREG1->CDDIS = 0;
Thanks for any help
