NXP S32K344EVB

NXP S32K3X4EVB-Q257 is an evaluation board for the NXP S32K344 MCU based on a Arm Cortex-M7 core (Lock-Step).

Features

  • NXP FS32K344

    • Lock-Step Configuration

    • 160 MHz Clock (Max.)

    • 4000 Kb Flash

    • 512 Kb RAM

  • NXP FS26 Safety System Basis Chip

  • Connectivity:

    • OpenSDA UART (Console @ 115,200 baud)

    • 2x Secure CAN transceivers

    • I/O headers with GPIO, I2C, SPI, etc.

Serial Console

By default, the serial console will be provided on the OpenSDA VCOM port:

OpenSDA UART RX

PTA15

LPUART6_RX

OpenSDA UART TX

PTA16

LPUART6_TX

USB drivers for the PEmicro CDC Serial Port are available here: http://www.pemicro.com/opensda/

LEDs and Buttons

Leds

The S32K344EVB has two RGB LEDs:

RedLED0

PTA29

EMIOS1 CH12 / EMIOS2 CH12

GreenLED0

PTA30

EMIOS1 CH13 / EMIOS2 CH13

BlueLED0

PTA31

EMIOS1 CH14 / FXIO D0

RedLED1

PTB18

EMIOS1 CH15 / EMIOS2 CH14 / FXIO D1

GreenLED1

PTB25

EMIOS1 CH21 / EMIOS2 CH21 / FXIO D6

BlueLED1

PTE12

EMIOS1 CH5 / FXIO D8

An output of ‘1’ illuminates the LED.

If CONFIG_ARCH_LEDS is not defined, then the user can control the LEDs in any way. The following definitions are used to access individual RGB components (see s32k344evb.h):

  • GPIO_LED0_R

  • GPIO_LED0_G

  • GPIO_LED0_B

  • GPIO_LED1_R

  • GPIO_LED1_G

  • GPIO_LED1_B

The RGB components could, alternatively, be controlled through PWM using the common RGB LED driver.

If CONFIG_ARCH_LEDs is defined, then NuttX will control the LEDs on board the S32K344EVB. The following definitions describe how NuttX controls the LEDs:

State

Description

RED

GREEN

BLUE

LED_STARTED

NuttX has been started

OFF

OFF

OFF

LED_HEAPALLOCATE

Heap has been allocated

OFF

OFF

ON

LED_IRQSENABLED

Interrupts enabled

OFF

OFF

ON

LED_STACKCREATED

Idle stack created

OFF

ON

OFF

LED_INIRQ

In an interrupt

LED_SIGNAL

In a signal handler

LED_ASSERTION

An assertion failed

LED_PANIC

The system has crashed

FLASH

OFF

OFF

LED_IDLE

S32K344 in sleep mode

Buttons

The S32K344EVB supports two buttons:

SW0

PTB26

EIRQ13 / WKPU41

SW1

PTB19

WKPU38

OpenSDA Notes

  • USB drivers for the PEmicro CDC Serial Port are available here: http://www.pemicro.com/opensda/

  • The drag’n’drog interface expects files in .srec format.

Configurations

Each S32K344EVB configuration is maintained in a sub-directory and can be selected as follows:

tools/configure.sh s32k344evb:<subdir>

Where <subdir> is one of the sub-directories listed in the next paragraph.

NOTES (common for all configurations):

  1. This configuration uses the mconf-based configuration tool. To change this configuration using that tool, you should:

    1. Build and install the kconfig-mconf tool. See nuttx/README.txt. Also see additional README.txt files in the NuttX tools repository.

    2. Execute ‘make menuconfig’ in nuttx/ in order to start the reconfiguration process.

  2. Unless otherwise stated, the serial console used is LPUART6 at 115,200 8N1.

nsh

Configures the NuttShell (nsh) located at apps/examples/nsh. Support for builtin applications is enabled, but in the base configuration the only application selected is the “Hello, World!” example.