The `S32K1XX series <https://www.nxp.com/products/processors-and-microcontrollers/s32-automotive-platform/s32k-general-purpose-mcus/s32k1-microcontrollers-for-general-purpose:S32K1>`_ is a family of automotive-grade general-purpose microcontrollers from NXP Semiconductors. The lower end of the family is based on an Arm Cortex-M0+ core and can run at clockspeeds up to 48 MHz. The higher end chips are based on the Arm Cortex-M4F core which runs at up to 80 or 112 MHz.
Supported MCUs
==============
The following list includes MCUs from the S32K1XX series and indicates whether they are supported in NuttX:
======== ======= ========== =========
MCU Support Core Frequency
======== ======= ========== =========
S32K116 Yes* Cortex-M0+ 48 MHz
S32K118 Yes* Cortex-M0+ 48 MHz
S32K142 Yes* Cortex-M4F 112 MHz
S32K144 Yes Cortex-M4F 112 MHz
S32K146 Yes Cortex-M4F 112 MHz
S32K148 Yes Cortex-M4F 112 MHz
S32K142W No** Cortex-M4F 80 MHz
S32K144W No** Cortex-M4F 80 MHz
======== ======= ========== =========
| \* Supported but (mostly) untested.
| ** Not supported (yet), but it is expected that existing code can be adapted with limited effort.
Supported Modules & Peripherals
===============================
The following list indicates modules and peripherals supported in NuttX. Note that this list does not include all MCU modules. Please refer to the S32K1XX Reference Manual for a complete overview of its features.
Emulated EEPROM (implemented by FlexRAM module). A basic block driver is available to read and write data.
ENET
----
10/100 Mbit/s Ethernet MAC. Only available on S32K148. Driver is available.
FlexCAN
-------
The S32K1XX family has up to 3x FlexCAN modules (which may not all have CAN FD support). A SocketCAN-compatible driver is available.
FlexIO
------
A configurable module providing a range of functionality like emulation of a variety of serial/parallel communication protocols, flexible 16-bit timers or programmable logic blocks. No driver available.
FTM
---
A PWM driver based on FlexTimer (FTM) is available.
GPIO
----
Pins can be configured using :c:func:`s32k1xx_pinconfig` function. Writing to pins is done by :c:func:`s32k1xx_gpiowrite` function and reading is done by :c:func:`s32k1xx_gpioread`.
LPI2C
-----
Low-Power Inter-Integrated Circuit (I2C) module supporting an interface to an I2C bus as master and/or
as a slave. The lower-half of this driver is initialize by calling :c:func:`s32k1xx_i2cbus_initialize`.
LPSPI
-----
Low-Power Serial Peripheral Interface (SPI) module that supports an interface to an SPI bus as a master
and/or a slave. The lower-half of this driver is initialize by calling :c:func:`s32k1xx_lpspibus_initialize`.
LPUART
------
Low-Power Universal Asynchronous Receiver/Transmitter (UART) module. UART is initialized automatically during
MCU boot.
QSPI
----
QuadSPI memory interface for external serial flash devices. No driver implemented.
RTC
---
Real-Time Clock module. A basic driver has been implemented.
SAI
---
The Synchronous Audio Interface for digital audio over I2S (Inter-IC Sound) is only available on S32K148. No driver implemented.
