SEGGER IP Switch Board

Overview

The Segger IP Switch Board is a Evaluation board based on NXP Kinetis K66 MCU. It comes with Micrel/Microchip KSZ8794CNX integrated 4-port 10/100 managed Ethernet switch with Gigabit RGMII/MII/RMII interface.

KSZ8794CNX enables evaluation for switch functions
On-board debug probe J-Link-OB for programming

Hardware

MK66FN2M0VMD18 MCU (180 MHz, 2 MB flash memory, 256 KB RAM, low-power, crystal-less USB
Dual role USB interface with micro-B USB connector
2 User LED
On-board debug probe J-Link-OB for programming
Micrel/Microchip Ethernet Switch KSZ8794CNX with 3 RJ45 connectors

For more information about the K66F SoC and IP-K66F board:

Supported Features

The ip_k66f board configuration supports the following hardware features:

Interface	Controller	Driver/Component
NVIC	on-chip	nested vector interrupt controller
SYSTICK	on-chip	systick
PINMUX	on-chip	pinmux
GPIO	on-chip	gpio
WATCHDOG	on-chip	watchdog
FLASH	on-chip	soc flash
RTC	on-chip	rtc

The default configuration can be found in the defconfig file:

boards/arm/ip_k66f/ip_k66f_defconfig

Micrel/Microchip KSZ8794CNX Ethernet Switch is not currently supported.

Connections and IOs

The K66F SoC has five pairs of pinmux/gpio controllers.

Name	Function	Usage
PTA8	GPIO	Red LED
PTA10	GPIO	RED LED

System Clock

The K66F SoC is configured to use the 12 MHz low gain crystal oscillator on the board with the on-chip PLL to generate a 180 MHz system clock.

Serial Port

The K66F SoC has six UARTs. None of them are used.

Programming and Debugging

Build and flash applications as usual (see Building an Application and Run an Application for more details).

Configuring a Debug Probe

A debug probe is used for both flashing and debugging the board. This board is configured by default to use the OpenSDA J-Link Onboard Debug Probe.

OpenSDA J-Link Onboard Debug Probe 

Install the J-Link Debug Host Tools and make sure they are in your search path.

Follow the instructions in OpenSDA J-Link Onboard Debug Probe to program the OpenSDA J-Link Generic Firmware for V3.2 Bootloader. Note that Segger does provide an OpenSDA J-Link Board-Specific Firmware for this board, however it is not compatible with the DAPLink bootloader.

The default flasher is jlink using the built-in SEGGER Jlink interface.

Flashing

Here is an example for the Blinky application.

# From the root of the zephyr repository
west build -b ip_k66f samples/basic/blinky
west flash

Red LED0 should blink at 1 second delay.

Debugging