本文將演示如何基于RT-Thread，在RA8P1 Titan Board上，從設(shè)備驅(qū)動、W-iFi聯(lián)網(wǎng) 到 AIOT大模型部署，構(gòu)建一個端側(cè)AIoT應(yīng)用。內(nèi)容聚焦具體操作與代碼實現(xiàn)，為在高性能MCU上進行全棧開發(fā)的工程師提供一份可直接復(fù)現(xiàn)的實踐參考。

目錄

環(huán)境搭建

燒錄方法

RT-Thread 設(shè)備驅(qū)動

Wi-Fi 聯(lián)網(wǎng)實驗

AIOT大模型對話實驗

效果演示

獲取同款硬件

1 環(huán)境搭建

XShell 軟件：https://cdn.netsarang.net/v8/Xshell-latest-p

RT-Thread Studio 安裝包：https://download-redirect.rt-thread.org/download/studio/RT-Thread_Studio_2.2.9-setup-x86_64_202412161335.exe

Titan Board SDK環(huán)境安裝：https://www.rt-thread.org/document/site/#/rt-thread-version/rt-thread-standard/hw-board/ra8p1-titan-board/ra8p1-titan-board?id=rt-thread-studio-%e5%bc%80%e5%8f%91%e6%ad%a5%e9%aa%a4

FSP-6.0安裝包：https://github.com/renesas/fsp/releases/download/v6.0.0/setup_fsp_v6_0_0_rasc_v2025-04.1.exe

如果網(wǎng)絡(luò)不好，有離線SDK包（sdk-bsp-ra8p1-titan-board-1.0.0.zip），需要如下方式進行導入：

2 燒錄方法

設(shè)備名稱：R7KA8P1KF_CPU0

3 RT-Thread 設(shè)備驅(qū)動

實現(xiàn)一個RT-Thread設(shè)備

staticrt_err_tdrv_test_init(rt_device_t dev){ rt_kprintf("test drv init\n"); returnRT_EOK;}
staticrt_err_tdrv_test_open(rt_device_t dev, rt_uint16_t oflag){ rt_kprintf("test drv open flag = %d\n", oflag); returnRT_EOK;}
staticrt_err_tdrv_test_close(rt_device_t dev){ rt_kprintf("test drv close\n"); returnRT_EOK;}
staticrt_ssize_tdrv_test_read(rt_device_t dev, rt_off_t pos,void*buffer, rt_size_t size){ rt_kprintf("test drv read pos = %d, size = %d\n", pos, size); returnsize;}
staticrt_ssize_tdrv_test_write(rt_device_t dev, rt_off_t pos, constvoid *buffer, rt_size_t size){ rt_kprintf("test drv write pos = %d, size = %d\n", pos, size); returnsize;}
staticrt_err_tdrv_test_control(rt_device_t dev, int cmd,void*args){ rt_kprintf("test drv control cmd = %d\n", cmd); returnRT_EOK;}
intrt_drv_test_init(void){ rt_device_t test_dev =rt_device_create(RT_Device_Class_Char,0); if(!test_dev) { rt_kprintf("test drv create failed!"); return-RT_ERROR; }
test_dev->init = drv_test_init; test_dev->open = drv_test_open; test_dev->close = drv_test_close; test_dev->read = drv_test_read; test_dev->write = drv_test_write; test_dev->control = drv_test_control;
if(rt_device_register(test_dev,"test_drv",RT_DEVICE_FLAG_RDWR) !=RT_EOK) { rt_kprintf("test drv register failed!"); return-RT_ERROR; }
returnRT_EOK;}MSH_CMD_EXPORT(rt_drv_test_init, enable test drv app);
staticintdrv_test_app(void){ rt_device_t test_dev =rt_device_find("test_drv"); if(test_dev ==RT_NULL) { rt_kprintf("can not find test drv!"); return-RT_ERROR; }
rt_device_open(test_dev,RT_DEVICE_OFLAG_RDWR); rt_device_control(test_dev,RT_DEVICE_CTRL_CONFIG,RT_NULL); rt_device_write(test_dev,100,RT_NULL,1024); rt_device_read(test_dev,20,RT_NULL,128);
rt_device_close(test_dev);
returnRT_EOK;}MSH_CMD_EXPORT(drv_test_app, enable test drv app);

PIN 設(shè)備解析

4Wi-Fi 聯(lián)網(wǎng)實驗

1.首先我們需要傳輸wifi的固件資源到文件系統(tǒng)：

參考：https://rt-thread-studio.github.io/sdk-bsp-ra8p1-titan-board/latest/driver/Titan_driver_wifi/README_zh.html#id11

2.在MSH命令行中，輸入以下命令掃描附近的wifi熱點信息：

wifiscan

3.在MSH命令行中，輸入以下命令來讓wifi模塊聯(lián)網(wǎng)：

wifi join[wifi 名稱][wifi 密碼]

4.我們可以使用ping命令測試是否聯(lián)網(wǎng)成功：

5.添加自動聯(lián)網(wǎng)應(yīng)用代碼

#include#include#include"hal_data.h"#include#include#include#include#include#defineLOG_TAG "wifi"#include#defineLED_PIN_0 BSP_IO_PORT_00_PIN_12/* Onboard LED pins */#defineFS_PARTITION_NAME "filesystem"voidhal_entry(void){ intresult = RT_EOK; rt_kprintf("\nHello RT-Thread core0!\n"); structrt_device *mtd_dev = RT_NULL; externintfal_init(void); fal_init(); mtd_dev =fal_mtd_nor_device_create(FS_PARTITION_NAME); if(!mtd_dev) { LOG_E("Can't create a mtd device on '%s' partition.", FS_PARTITION_NAME); } else { if(dfs_mount(FS_PARTITION_NAME,"/","lfs",0,0) ==0) { LOG_I("Filesystem initialized!"); if(mkdir("/webnet",0777) ==0) { LOG_I("Created '/webnet' directory."); } } else { dfs_mkfs("lfs", FS_PARTITION_NAME); if(dfs_mount("filesystem","/","lfs",0,0) ==0) { LOG_I("Filesystem initialized!"); } else { LOG_E("Failed to initialize filesystem!"); } } } /* Initialize WiFi device and auto-connect */ LOG_I("Starting WiFi auto-connection..."); LOG_I("Connecting to SSID: %s", BSP_WIFI_SSID); /* Wait for WiFi device to be ready */ rt_thread_mdelay(2000); /* Connect to WiFi network */ result =rt_wlan_connect(BSP_WIFI_SSID, BSP_WIFI_PASSWORD); if(result == RT_EOK) { LOG_I("WiFi connection initiated successfully!"); /* Wait for connection to complete */ rt_thread_mdelay(5000); /* Check connection status */ if(rt_wlan_is_connected()) { LOG_I("WiFi connected successfully!"); /* Get and print IP address */ structrt_wlan_infoinfo; if(rt_wlan_get_info(&info) == RT_EOK) { LOG_I("Connected to: %s", info.ssid.val); LOG_I("RSSI: %d dBm", info.rssi); } } else { LOG_E("WiFi connection failed!"); } } else { LOG_E("Failed to initiate WiFi connection: %d", result); } while(1) { rt_pin_write(LED_PIN_0, PIN_HIGH); rt_thread_mdelay(1000); rt_pin_write(LED_PIN_0, PIN_LOW); rt_thread_mdelay(1000); }}

5AIOT大模型對話實驗

下面的實驗需要基于 Wi-Fi 工程 基礎(chǔ)上進行相關(guān)配置

使能 llmchat 軟件包

點擊添加軟件包按鈕，搜索并添加 llmchat軟件包：

添加成功后如下圖

通義千問賬號注冊

1.注冊阿里云賬號，并進入阿里云百煉平臺：選擇模型廣場→API調(diào)用示例

2.模型使用需要充值，請酌情充值即可，這里演示充值1元就可使用：

https://billing-cost.console.aliyun.com/fortune/fund-management/recharge

3.接下來新建大模型的 API-KEY：

4.填寫描述后即可創(chuàng)建API-KEY（SK-XXXXXXXX）:

5.打開 RT-Thread Settings，進入 RT-Thread online packages → AI packages → Large Language Models(LLM) for RT-Thread 目錄下；按照下圖進行配置：

llm qwen user api key：API KEY 需要在通義千問控制臺獲?。?/p>

llm qwen model name：選擇模型的名稱默認是 qwen-plus；

6.按照下圖修改llm配置，同時使能 llmchat webnet 模式：

注意：如果在配置中沒有顯示“Enable llmchat webnet mode”選項，請進入到下圖所示的目錄下，編輯Kconfig文件：

請按照下圖所示，添加相關(guān)代碼，注意縮進：

config PKG_LLMCHAT_WEBNET_MODE bool"Enable llmchat webnet mode" selectPKG_USING_WEBNET selectWEBNET_USING_CGI defaultn help Afterusingthe WebNet model, you can communicatewiththe llmusinga browser webpage.

保存，回到 Studio 中重新打開 RT-Thread Settings 即可顯示此選項

7.進入 RT-Thread online packages → IoT - internet of things → WebClient: A HTTP/HTTPS Client for RT-Thread 選擇MbedTLS support

8.進入 RT-Thread online packages → security packages → mbedtls 菜單，修改 Maxium fragment length in bytes 字段為 6144（否則TLS會握手失敗）

9.使能舊版本兼容支持：

10.修改 LWIP 配置，增加 LWIP 線程棧大小：

11.使能組件-驅(qū)動中的軟件模擬RTC設(shè)備：

12.退出保存配置，studio會自動拉取軟件包：

13.修改 webnet線程棧大小為 8K：

14.軟件包下載成功后，會在本地 packages下顯示：

15.編譯，燒錄工程

6 效果演示

7 獲取同款硬件