Even thou we are talking about AUTOSAR it still important to know several features of the microcontrollers like gpio, timers, adc, interrupts and etc. It is important to know the resources and more important to know the target, in this case, will be the NXP s32k144
It is actually pretty straight forward how to configure and control a Port or a pin in a microcotroller, but you need to keep in mind a couple of concepts established by AUTOSAR,
You can notice the Mcu driver cover more than the internal clocks configuration, it is also in charge of RAM initialization, resets and some extra features like configuring the pin CLKOUT. But for now lets just focus on the System clock and its potential sources and outputs.
The SPI or "Serial Peripheral Interface" is a synchronous serial communication protocol, full duplex, created by Motorola. Devices are connected in Master/Slave mode, in which the master is always responsible
As per its official definition: The CAN Communication Services are a group of modules for vehicle network communication with the communication system CAN, provide a uniform interface to the CAN network while hiding protocol and message properties from the application.
The CAN Interface module provides a unique interface to manage different CAN hardware device types like CAN Controllers and CAN Transceivers used by the defined ECU hardware layout. Thus multiple underlying internal and external CAN Controllers/CAN Transceivers can