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《恩智浦FRDM-MCX947开发实践指南》

已有 250 次阅读2024-3-17 08:28

最近RT-Thread与恩智浦达成战略合作，对其新出品的MCX947适配了RTT。最近开展开发板试用活动。大家可以及时去申请。这里分

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《恩智浦FRDM-MCX947开发实践指南》

零、实践指南说明

硬件介绍

开发板描述： NXP FRDM-MCXN947板是NXP官方基于MCXN947器件的低成本设计和评估板。MCXN947器件将Arm Cortex-M33单片机和神经处理单元(NPU)集成到单个封装中。NXP支持MCXN947设备的工具和软件，包括硬件评估板，软件开发IDE，示例应用程序和驱动程序。该板由一个MCXN947器件和一个64 mbit外部串行闪存(由Windows提供)组成。该板还具有P3T1755DP I3C温度传感器，CAN PHY，以太网PHY，SDHC电路(DNP)，RGB LED，触摸板，高速USB电路，按钮和MCU-Link调试探头电路。提供Arduino扩展，PMOD扩展，MicroBus总线扩展。支持摄像头模块和NXP低成本LCD模块PAR-LCD-S035。兼容Arduino屏蔽模块和Mikroe点击板。板载MCU-Link调试探头基于LPC55S69单片机。

开发板外观如下图所示：

硬件配置：

该开发板常用板载资源如下：

MCU：MCXN947VDFT，主频150 MHz

外部FLASH：W25Q64JVSSIQ(8 MB)
常用外设
LED：RGBLED(R接P0_10，G接P0_27，B接P1_2)
按键：3个，RESET(RESET_B)，WAKEUP(P0_23)，ISPMODE(P0_6)
常用接口：Arduino兼容IO接口，mikroBUS 接口，PMOD接口，FlexIO接口，摄像头接口，USB接口，CAN接口，MCU-Link USB接口，Debug接口

开发板更多详细信息请参考 NXP官方网站。

开发环境

目前FRDM-MCXN947板级支持包提供MDK5，并且支持 GCC 开发环境，现以 MDK5 开发环境为例，介绍如何将示例程序运行起来。运行示例程序前需要做如下准备工作：

NXP官方的FRDM-MCXN947的上手教程，可以参考这里

MDK 开发环境

需要安装 MDK-ARM 5.38（或以上版本均可）。安装方法可以参考 Keil MDK安装。

源码获取

javascript:;

源码目录说明

使用USB线连接开发板的USB转串口到 PC 机。

运行第一个示例程序

编译下载

进入到 rt-thread\bsp\nxp\mcxn\frdm-mcxn947 文件夹中，双击 project.uvprojx 文件，打开 MDK5工程。

执行编译，编译完成后，点击下载按钮将固件下载至开发板，下载完成后，程序会自动开始运行，观察程序运行状况。

提示：工程默认配置使用 CMSIS-DAP下载程序，点击下载按钮可下载程序到开发板

运行

如没有自动运行，按下复位按键重启开发板，观察开发板上 LED 的实际效果。正常运行后，LED 灯会周期性闪烁，如下图所示：

连接开发板对应串口到PC，在串口工具里打开相应的串口(115200-8-1-N)，复位设备后，可以看到 RT-Thread 的输出信息：

 \ | /
- RT -     Thread Operating System
 / | \     5.1.0 build Feb 19 2024 16:40:05
 2006 - 2024 Copyright by RT-Thread team
using armclang, version: 6190004
MCXN947 HelloWorld
msh >

继续学习

已完成 RT-Thread 快速上手！点击这里进行内核学习。

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