setPins() for rx/tx and cs/irq?

[atestani]

I am using an MCP2515 on an ESP32 and writing code in PlatformIO/VSCode with the Arduino framework. I need to set both rx/tx and cs/irq from the defaults. I see in the API.md that there are two calls to setPins() for both pairs of pins. How does the library know which set of pins I am defining?

[alastaira]

That depends on whether you're targetting ESP32 or AVR architecture.

[brightproject]

I also didn't quite understand the function:

void MCP2515Class::setPins(int cs, int irq)
{
_csPin = cs;
_intPin = irq;
}

arduino-CAN/src/MCP2515.cpp

Line 396 in b514e6b

void MCP2515Class::setPins(int cs, int irq)

According to the code CAN.setPins(PA4, -1); there is an explicit installation of the pin of the CS and INT and nothing else, the platform has nothing to do with it.