ST25R3911 Interrupt problem

[HPARK.1]

Hi,

I use st25r3911 ev board with rfal on X-NUCLEO_NFC05A1.

First I tested below project in NUCLEO-401RE that I don't have any problem.

But, I switched target board to NUCLEO -F429ZI that I have an interrupt problem.

The problem that after an interrupt pin is not go low.

As I know, after occurring interrupt and I read the interrupt register. And interrupt pin to go low.

So, I insert delay for work around like below picture.

And I add my project.

[Ulysses HERNIOSUS · Accepted solution]

Hi,

I suspect that your locking via platform(Un)ProtectST25R391xComm() is wrong: Your code indicates usage of EXTI3 for the 3911, however this macro still seems to be defined as:

#define platformProtectST25R391xComm()        do{ globalCommProtectCnt++; __DSB();NVIC_DisableIRQ(EXTI0_IRQn);__DSB();__ISB();}while(0)

Regards, Ulysses

[HPARK.1]

Hi

Thank you very much for your answer.

I solved this problem!

[HPARK.1]

Hi

Thank you very much for your answer.

I solved this problem!