Wakeup SPC570S40E1 from STOP mode by NMI pin.

[Tran Hung]

Posted on May 31, 2018 at 09:31

Hello everyone;

I am working with SPC570S discovery board. I would like to implement the STOP mode to reduce the power consumption and then wake up by using NMI pin like PA[4] or PC[15].

I already entry the STOP mode however the board does not wake up from STOP mode. The program seems to be halted and then showed a warning like this picture.

The mode is then unidentified.

My code is attached in the file below.

Can someone help me to configure the wake up unit from STOP mode?

I am appreciate to your help. Thanks you so much.

#stop-mode-wake-source #wakeup-pin #spc570s-disp

Note: this post was migrated and contained many threaded conversations, some content may be missing.

[Tran Hung]

Posted on June 01, 2018 at 07:03

LE_SAINT.Erwan

‌ Can you support me about this problem?

[Tran Hung]

Posted on June 01, 2018 at 08:42

Yvin.Erwan

‌

Can you support me about this problem?

[Erwan YVIN]

Posted on June 06, 2018 at 10:11

Hello ,

According to your code :

Flash is in Low power mode ..

MC_ME.STOP0_MC.B.FLAON = 3; /* Flash is in low-power mode */�?�?

you can not access to the Wakeup function

Maybe ,you should put your function in RAM.

(Standby or Stop Mode) there are nice example in SPC5Studio :

SPC560Dxx OS-Less STANDBY SRAM Test Application for Discovery

SPC560Dxx_RLA WKPU API Test Application for Discovery

You can not debug in Low Power mode.

Best regards

Erwan

[Tran Hung]

Posted on June 15, 2018 at 05:28

Hello

Yvin.Erwan

‌!

I looked at some examples of SPC560 processor:

SPC560Dxx OS-Less STANDBY SRAM Test Application for Discovery

SPC560Dxx_RLA WKPU API Test Application for Discovery

I found that SPC560 has interrupt vectors for the wake up feature: [table 155: Interrupt vector table]

However, I havent found any software interrupt vector in SPC5

Which interrupt should I use to wake up in SPC570 MCU?

[Erwan YVIN]

Posted on June 15, 2018 at 16:03

Hello Tran ,

it is different from SPC56D.

you should see the chapter 3

you should set your pad in NMI and set correctly the NMI Configuration Register

Example for a machine Check Occurrence

void interruptRoutine_IVOR1(void){printf('
***** Interrupt IVOR1: Machine Check occurs *****
');NMI_MCR_ISR(); /* NMI wake up from Lpmode*/};�?�?�?�?�?�?�?

Best regards

Erwan

[Tran Hung]

Hello @zambrano.luigi​ @Erwan YVIN​ !

Over-current protection by eTimer FAULT safing mode.

 ----------------------------------------------------------------------------------------------

I have a question about eTimer PWM.

I tried to configure eTimer_0 ETC_4 as a source FAULT_0 for eTimer 3. The PA[13] is assigned as an external input fault source. My configuration code is below:

void etimer_config ()

{

ETIMER_0.CH[4].CNTR.R = 1000;

ETIMER_0.CH[4].CTRL1.B.CNTMODE = 0x6U; /* Edge of secondary source triggers primary count till compare */

ETIMER_0.CH[4].CTRL1.B.PRISRC = 0x18U; /* primary count source = IP bus clock/2 */

ETIMER_0.CH[4].CTRL1.B.SECSRC = 0x4U; /* Counter #4 input pin etimer0.ch[4]/ PA[13] */

ETIMER_0.CH[4].CTRL1.B.ONCE = 0U; /* count repeatedly */

ETIMER_0.CH[4].CTRL1.B.LENGTH = 0U; /* count until rolling over */

ETIMER_0.CH[4].CTRL1.B.DIR = 0U; /* count up */

ETIMER_0.CH[4].CTRL2.B.OEN = 0U; /* output disable */

ETIMER_0.CH[4].CTRL2.B.RDNT = 0U; /* disable redundant channel */

ETIMER_0.CH[4].CTRL2.B.INPUT = 0x1U;  /* External input signal enable*/

ETIMER_0.CH[4].CTRL2.B.SIPS = 0x1; /* Positive edge for recounting*/

ETIMER_0.CH[4].CTRL3.B.FMODE = 1;   /* change mode */

ETIMER_0.CH[4].CTRL3.B.FDIS = 1; /* The channel OFLAG output is affected by this FAULT pin. */

ETIMER_0.CH[4].FILT.B.FILT_CNT = 7; /* sample filter counter*/

ETIMER_0.CH[4].FILT.B.FILT_PER = 255; /* input filter period */

ETIMER_0.CH[4].CCCTRL.B.CPT2MODE = 0x2U;  /*Capture 2 Mode Control*/

ETIMER_0.CH[4].CCCTRL.B.CPT1MODE = 0x2U;  /*Capture 1 Mode Control*/

ETIMER_0.CH[4].CCCTRL.B.CFWM = 0x1U;  /*FIFO = 2*/

}

void FAULT_PIN_Configure ()

{

    SIUL2.MSCR_MUX[206].R = 0x1U;

}

When this program operates, the PWM of eTimer_3 already disable, but it is enable when the fault pin PA[13] change the state. Can you review my configuration?