add the step-by-step instructions for the first-time setup of Wi-Fi resources

Author: Evlers

projects/Edgi_Talk_M55_WIFI/README.md

@@ -41,6 +41,23 @@ It allows users to quickly test Wi-Fi scanning, connection, and performance, ver
 2. Connect the board USB to PC via **DAP**.
 3. Flash the compiled firmware.
 
+### Prepare Wi-Fi resources (first-time setup)
+
+The Wi-Fi host driver loads three blobs (firmware `.bin`, regulatory `.clm_blob`, and board-specific `nvram.txt`) from FAL before it can power up the radio. These files live outside the application image, so flashing a new binary will not refresh them automatically. The default bundles for Edgi-Talk live in the workspace root under `resources/`.
+
+- Keep `WHD_RESOURCES_IN_EXTERNAL_STORAGE_FAL` enabled in menuconfig and make sure the FAL table provides the `whd_firmware`, `whd_clm`, and `whd_nvram` partitions (the defaults reserve 512 KB + 32 KB + 32 KB of on-chip flash).
+- Attach a serial terminal, reboot into the `msh` prompt, and run the download helper for each partition:
+
+```
+whd_res_download whd_firmware
+whd_res_download whd_clm
+whd_res_download whd_nvram
+```
+
+Each command switches to YMODEM mode. Use a terminal that supports YMODEM upload (Xshell) to send the matching files from the top-level `resources/` directory .
+- Wait for the `Download … success` message before moving to the next partition.
+- Power-cycle or reset the board after the three transfers so Wi-Fi starts with the freshly stored blobs. Re-run the command whenever you update the firmware/CLM/NVRAM bundle.
+
 ### Running Result
 
 * After power-on, the system initializes the Wi-Fi device.

projects/Edgi_Talk_M55_WIFI/README_zh.md

@@ -34,6 +34,24 @@
 2. 使用 **板载下载器 (DAP)** 将开发板的 USB 接口连接至 PC。
 3. 通过编程工具将生成的固件烧录至开发板。
 
+### 准备 WiFi 资源（首次必做）
+
+WHD 在启动时需要从 FAL 读取三个外部资源文件：`firmware`（二进制固件）、`clm_blob`（射频法规表）以及 `nvram.txt`（模组校准参数）。这些文件独立于应用固件，重新烧录应用不会自动更新它们，因此首次使用或更换固件包时必须手动写入。Edgi-Talk 默认提供的资源文件位于工程根目录的 `resources/` 文件夹中。
+
+- 在 menuconfig 中保持 `WHD_RESOURCES_IN_EXTERNAL_STORAGE_FAL` 选项开启，并在 FAL 分区表中保留默认的 `whd_firmware`、`whd_clm`、`whd_nvram` 分区（默认分别占用 512 KB + 32 KB + 32 KB 的片上 Flash）。
+- 打开串口终端，复位进入 `msh` 命令行，依次执行以下命令：
+
+```
+whd_res_download whd_firmware
+whd_res_download whd_clm
+whd_res_download whd_nvram
+```
+
+命令会切换到 YMODEM 传输模式，请使用支持 YMODEM 上传的终端软件（如 Xshell）选择根目录 `resources/` 下对应芯片的文件并发送。
+
+- 每次收到 `Download ... success` 提示后再进行下一项
+- 三者写入完成后重启开发板即可让 WiFi 读取新的资源；若后续更新固件包，同样需要重新执行 `whd_res_download`。
+
 ### 运行效果
 
 * 烧录完成后，开发板上电即可运行示例工程。