NPCX7M6FB_EVB

Overview

The NPCX7M6FB_EVB kit is a development platform to evaluate the Nuvoton NPCX7 series microcontrollers. This board needs to be mated with part number NPCX796FB.

Hardware

ARM Cortex-M4F Processor
256 KB RAM and 64 KB boot ROM
ADC & GPIO headers
UART0 and UART1
FAN PWM interface
Jtag interface
Intel Modular Embedded Controller Card (MECC) headers

Supported Features

The following features are supported:

Interface	Controller	Driver/Component
NVIC	on-chip	nested vector interrupt controller
UART	on-chip	serial port-polling; serial port-interrupt
PINMUX	on-chip	pinmux
GPIO	on-chip	gpio
CLOCK	on-chip	reset and clock control

Other hardware features are not currently supported by Zephyr (at the moment)

The default configuration can be found in the defconfig file: boards/nuvoton/npcx7m6fb_evb/npcx7m6fb_evb_defconfig

Connections and IOs

Nuvoton to provide the schematic for this board.

System Clock

The NPCX7M6FB MCU is configured to use the 90Mhz internal oscillator with the on-chip PLL to generate a resulting EC clock rate of 15 MHz. See Processor clock control register (chapter 4 in user manual)

Serial Port

UART1 is configured for serial logs.

Programming and Debugging

This board comes with a Cortex ETM port which facilitates tracing and debugging using a single physical connection. In addition, it comes with sockets for JTAG only sessions.

Flashing

If the correct IDC headers are installed, this board supports both J-TAG and also the ChromiumOS servo.

To flash using Servo V2, μServo, or Servo V4 (CCD), see the Chromium EC Flashing Documentation [1] for more information.

To flash with J-TAG, install the drivers for your programmer, for example: SEGGER J-link’s drivers are at https://www.segger.com/downloads/jlink/

# From the root of the zephyr repository
west build -b npcx7m6fb_evb samples/hello_world
west flash

Debugging

Use JTAG/SWD with a J-Link