Hi!
I am thinking about doing a project with a Giga, but the equipment needs to interface with an INTx-pin, and I can't see any in the official documentation for the Giga.
Does anyone know which pins have this functionality?
Hello
What do you mean by
If you are just looking for the list of the pins that you can use as interrupt input, then if I were you I wouldn't be worried.
From the offical page of the Giga R1, in the Interrupt section, you can find the following:
Thank you. But are they hardware or software interrupts? I was able to find such information for some older cards, but not for the Giga.
I'm not sure to understand what's the meaning of your question?
What are you trying to do with this interrupt?
Itäs supposed to listen for incoming messages in a peculiar serial format. I am adapting the circuit, which was originally made for use with older Arduinos.
You can find it at the bottom of this page: https://mrrwa.org/dcc-decoder-interface/
Details of the NVIC and EXTI for the GIGA MCU can be found in sections 20 and 21 of the RM0399 reference manual https://www.st.com/resource/en/reference_manual/rm0399-stm32h745755-and-stm32h747757-advanced-armbased-32bit-mcus-stmicroelectronics.pdf
Thank You.
I wish I was good enough to understand that document...
Are you sure you need to use the interrupt for this? Let me reformulalte: Are you sure you need to use interupt for this?
Can't you just use the Serial.available() to check if you received something? And deal with it if yes.
However, if you really need (want) to use interrupt; I'm like you I'm kinda lazy and don't wanna read all the documentation.
Never tried but I guess you could add a jumper between the RX pin of your communication and another pin that you will declare as interrupt input on RISING_EDGE or CHANGE.
Then, in your ISR you get the data you received and do what you have to do.
Careful, an interrupt should be as short as possible.