Hi
I use a FRDM-KE06Z to test power consumption of KE06.
According to schematic, I removed R77 and R11 to measure power consumption of KE06.
I use KDS to create a project and only enable the "STOP operation mode" and generate "SetOperationMode".
Other setting of MCU is default, no external crystal/OSC enable.
According to datasheet, the typical current is around 2uA, but I measure the current is around 120uA.
Did I miss any setting or something wrong?
I attached my project code, thanks.
Original Attachment has been moved to: KE06.7z.zip
Hello,
You need to disable the Low Voltage detector, which adds 120 uA to the current.
See the following code:
int main(void) { int counter = 0; PMC_Init(); GoToLowPower(WAIT); for(;;) { counter++; } return 0; } void GoToLowPower (uint8_t OperationMode) { switch (OperationMode) { case WAIT: /* SCB_SCR: SLEEPDEEP=0 */ SCB_SCR &= (uint32_t)~(uint32_t)(SCB_SCR_SLEEPDEEP_MASK); /* SCB_SCR: SLEEPONEXIT=0 */ SCB_SCR &= (uint32_t)~(uint32_t)(SCB_SCR_SLEEPONEXIT_MASK); __asm("WFI"); break; case STOP: /* SCB_SCR: SLEEPONEXIT=0 */ SCB_SCR &= (uint32_t)~(uint32_t)(SCB_SCR_SLEEPONEXIT_MASK); /* SCB_SCR: SLEEPDEEP=1 */ SCB_SCR |= SCB_SCR_SLEEPDEEP_MASK; __asm("WFI"); break; default: for(;;); } } void PMC_Init () { /* PMC_SPMSC2: LVDV=0,LVWV=0 */ PMC_SPMSC2 &= (uint8_t)~(uint8_t)( PMC_SPMSC2_LVDV_MASK | PMC_SPMSC2_LVWV(0x03) ); /* PMC_SPMSC1: LVWACK=1,LVWIE=0,LVDRE=1,LVDSE=1,LVDE=1,??=0,BGBE=0 */ PMC_SPMSC1 = (uint8_t)((PMC_SPMSC1 & (uint8_t)~(uint8_t)( PMC_SPMSC1_LVWIE_MASK | PMC_SPMSC1_BGBE_MASK | 0x02U| PMC_SPMSC1_LVDE_MASK )) | (uint8_t)( PMC_SPMSC1_LVWACK_MASK | PMC_SPMSC1_LVDRE_MASK | PMC_SPMSC1_LVDSE_MASK )); }