About PPULA.1

PPULA.1 · 2021-02-02

Hi, I am new to using 32 bit microcontrollers and have been using 8 bit controllers previously. In my 8 bit controllers I had several uint8_t and uint16_t variables.Does a 32 bit microcontroller access 4 bytes of data in memory at once? If yes, can t...

PPULA.1 · 2021-01-20

I am unable to clear the EXTI pending register it always stays high and probably that is what is causing interrupt to trigger again and again. I am attaching snippets of code .Please Help me figure out the issue . #include "stm32l0xx.h" ...

PPULA.1 · 2021-01-21

Thanks a lot . My understanding of SYSCFG_EXTICR1_EXTI3_PC was wrong . It was not enabling exti for PC14 . Thank you very much

PPULA.1 · 2021-01-20

Thank you for the reply . SYSCFG->EXTICR[3]|=SYSCFG_EXTICR1_EXTI3_PC; is to select the source input for the EXTIx external interrupt which in my case is PORTC . I checked this in the register window too .I have checked the register contents and the...

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Are these Memory segmentation Problems even possible?

I am using stm32l011K4U3 microcontroller on a custom made pcb. I am trying to use EXTI on PC14 pin (which is also oscillator input pin). The interrupt is triggering continuously even though there is no raising or falling edge on the pin.

Re: I am using stm32l011K4U3 microcontroller on a custom made pcb. I am trying to use EXTI on PC14 pin (which is also oscillator input pin). The interrupt is triggering continuously even though there is no raising or falling edge on the pin.

Re: I am using stm32l011K4U3 microcontroller on a custom made pcb. I am trying to use EXTI on PC14 pin (which is also oscillator input pin). The interrupt is triggering continuously even though there is no raising or falling edge on the pin.