Hi Sir,
I'm test the low power mode static current consume in STOP mode with FRDM-KEAZ128Q80 board and demo project--FRDM_KEA128_PMC.zip in S32DS for ARM version from the demo board's Quick Start Package---FRDM-KEA-QSP, attached for your reference. but I got over 220uA( measured with my multimeter ) at jumper J15 with R117 removed, during the STOP mode period in the first 3 seconds as the project configured:
int main (void)
{
uint8_t u8Ch;
/* Perform processor initialization */
ICS_ConfigType ICS_set={0}; /* Declaration of ICS_setup structure */
ICS_set.u8ClkMode=ICS_CLK_MODE_FEI; /* ICS in FLL engaged internal mode*/
ICS_set.bdiv=0;
ICS_Init(&ICS_set); /* Initialization of Core clock at 48 MHz, Bus clock 24 MHz*/
/* UART Initialization */
UART_ConfigType UART_Config={{0}};
UART_Config.sctrl1settings.bits.bM=0; /* 8 bit mode*/
UART_Config.sctrl1settings.bits.bPe=0; /* No hardware parity generation or checking*/
UART_Config.bSbns=0; /* One stop bit*/
UART_Config.sctrl2settings.bits.bRe=1; /* Enable Receiver*/
UART_Config.sctrl2settings.bits.bTe=1; /* Enable Transmitter*/
UART_Config.u32SysClkHz = 24000000; /* Bus clock in Hz*/
UART_Config.u32Baudrate = 115200; /* UART baud rate */
UART_Init(UART2,&UART_Config); /*Initialization of UART utilities*/
CONFIG_PIN_AS_GPIO(PTE,PTE7,OUTPUT); /*Config LED0 as output */
printf("\nRunning the FRDM_KEA128_PMC project.\n\r");
/* PMC Initialization */
PMC_ConfigType PMC_Config={{0}};
PMC_Config.sCtrlstatus.bits.bBandgapEn = 1; /* Enable Bandgap buffer */
PMC_Config.sCtrlstatus.bits.bLvdStopEn = 0; /* Disable Low-Voltage Detect(LVD) in Stop mode */
PMC_Config.sCtrlstatus.bits.bLvdRstEn = 0; /* LVD events do not generate hardware resets. */
PMC_Init(PMC, &PMC_Config); /* Initialization of PMC */
PMC_DisableLVWInterrupt(PMC); /* Disable hardware interrupt requests for LVWF */
u8Ch = PMC_GetLVWFlag(PMC); /* Get the lvw warning flag */
/* Initialize RTC */
RTC_ConfigType RTC_Config={0};
RTC_Config.u16ModuloValue = 3;
RTC_Config.bInterruptEn = 1; /* Enable interrupt */
RTC_Config.bClockSource = RTC_CLKSRC_1KHZ;/* Clock source is 1khz */
RTC_Config.bClockPrescaler = RTC_CLK_PRESCALER_1000; /* Prescaler is 100 */
RTC_SetCallback(RTC_Task);
RTC_Init(&RTC_Config); /* Initialization of RTC */
printf("\nEnter stop mode and will be woken up in about 4s by RTC IRQ.\n\r");
PMC_SetMode(PMC,PmcModeStop3); /* Enable PMC in stop mode */
printf("\nWake up now.\n");
while(1);
return 0;
}
the J15 jumper circuit(I also attached the complete schematic for your reference) for MCU current measurement on FRDM-KEAZ128Q80:
I get the STOP mode current parameters from KEAZ128 datasheet(S9KEA128P80M48SF0, KEA128 Sub-Family Data Sheet - Data Sheet (REV 4))as below:
its typical STOP mode current should be 2 uA, so my test result has big gap.
Could you help to check it? How can we achieve the expected low power static current, and it's better to made a demo project for me to get the 2uA static current in STOP mode if possible.
Thanks very much~!
Best regard,
Enwei Hu(胡恩伟)
Original Attachment has been moved to: FRDM_KEA128_PMC.zip
Hello nicky,
Please check this test result:
1.6uA in stop mode, meet the datasheet's data.
Please follow me to realize it.
1. Board hardware configuration.
Remove the R117,cut the wire between J8, J106,
2, Download my attached project, which enter the stop mode.
At first, you need to use jumper to connect J8 and J106, just to download the code.
After you download the code, please remove the jumper between J8 and J106, this is very important.
My attached code is the S32DS project, it's modified from the FRDM-KEA128 driver code.
3. After download the code, please power off the board, then power on it again, this is very important.
After the above 3 points, you can test the power consumption in J15, you will find the current consumption is 1.6uA.
Please check it on your side, I already make it work.
Wish it helps you!
If you still have question about it, please kindly let me know!
Have a great day,
Kerry
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Hi nicky,
Just as one old chinese saying goes"送佛送到西"， please check my TRK-KEA128 test result, method can be find in the last reply.
Wish it helps you!
Next time, if you have question, please create the new case, don't follow other customer's case, we will help you in your post.
If you still want me to reply you, you can @ me.
Have a great day,
Kerry
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Note: If this post answers your question, please click the Correct Answer button. Thank you!
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I use TRK-KEA128 REV D，Remove R76，measure result is about 250uA,why?
