How Can i Toggle Pin in standby mode ?

nooshin_1382 · ‎2015-08-09

Posted on August 09, 2015 at 14:55

Hi members

I want to toggle pin in standby mode but i do not know how can i do this ?

because when i go to standby mode all things i use is disabled , i saw something lik this in freescale MCU's but i do'nt know how !

is this possible in SPC Mcu or not ?

Best regards

Nazerian Vanima

Erwan YVIN · ‎2015-08-12

Posted on August 12, 2015 at 10:39

Hello Vanima ,

ST MCu's have the same IPs as Freescale's MCUs (SPC56 ~MPC56)

If you want to toggle pin in Standby Mode .. i think that it is not possible.

you should use an intermediate Low Power Mode state and the PCTL SIUL should be enable in this mode.

Best regards

Erwan

nooshin_1382 · ‎2015-08-12

Posted on August 12, 2015 at 11:12

Hello Erwan

thanks for your response

Is the intermediate Low Power equal to stop mode or not i am a begginer in this issue

can you show me how can i do this or show me a refrence or example for this issue ?

I try to go to stop mode and set the SIU PCTL but when i come back from this mode the MCU not work correctlly .

thanks

Best Regards

Nazerian Vanima

Erwan YVIN · ‎2015-08-17

Posted on August 17, 2015 at 10:55

Hello Vanima ,

I think that when you go into the STOP mode.

you have to take care because the FLASH is in power-down mode

i advice you to put the function in RAM.

have you got an example of your application?

you can send me directly by email.

Best regards

Erwan

nooshin_1382 · ‎2015-08-19

Posted on August 20, 2015 at 07:50

Dear Erwan

I much appreciate you for your kind guidance.

I try so much to try send the example by email but when i send to your old email the ST server

Reject my Email ,i do not know why , because of this issue i send the example in here .

The attachment you can find the my example code. The main code is including from 3 functions(led_blinking(), led_timer_start(), and led_timer_stop) and an

interrupt function(IRQ_HANDLER(vector61)). The target is the blinking an led every 1 second. The tick_time variable is set in timer interrupt function.

The main question is how I can run the code in sleep mode.\

Meaanwhile, the other functions such as

Best Regard,

looking forward to hearing from you,

Erwan YVIN · ‎2015-08-25

Posted on August 25, 2015 at 15:56

Hello Vanima ,

In SLEEP Mode (STANDBY), it is a destructive reset. You will lose your PIN status RUN0 (main / led_blinking) ==> STANDBY ==> DRUN (WKPU IRQ by timer RTC) ==> RUN0 (main) except I recommend you to use the STOP mode RUN0 (main / led_blinking) ==> STOP (WKPU IRQ by timer RTC or Normal IRQ by PIT) ==> RUN0 (main) you reset your peripherals and you go to the Main Branch I recommend you to use the STOP mode PCTL 92 should be enabled on STOP Mode

PIT configuration 
////////////////////////////////////
IRQ_HANDLER(vector61)
{
OSAL_IRQ_PROLOGUE();
// Reset the PIT
PIT.CH[2].TFLG.R = 1;
tick_time = 1;
// GO TO RUN MODE
OSAL_IRQ_EPILOGUE();
}

while
(1)
{
led_blinking();
// GO TO STOP MODE
}

Best Regards Erwan

nooshin_1382 · ‎2015-08-26

Posted on August 26, 2015 at 09:24

Hello Erwan

Thanks so much , I try this code and tell you about that .

Best Regards

Nazerian Vanima