Rdzleo
c24a9bc162
阶段1: 将 dzbj 项目的 LVGL 8.3.11 LCD 显示集成到 AI小智 主项目， 开机显示 ScreenHome 界面，同时优化配网模式下的内存使用， 确保 WiFi+BLE+LVGL 三者共存运行。 ## 新增功能 ### dzbj 显示模块集成 - 新增 main/dzbj/ 目录，移植 LCD 驱动(ST77916 QSPI)、触摸驱动(CST816S)、 LVGL 初始化和 SquareLine Studio UI 界面 - I2C 总线共享：dzbj 触摸控制器复用主项目的 I2C_NUM_1 总线 - GPIO 冲突解决：LED(GPIO21)、Touch1(GPIO1)、Touch4(GPIO7) 改为 NC， 电池 ADC 从 GPIO6 改为 GPIO3 - 添加 LVGL、esp_lcd_st77916、esp_lcd_touch_cst816s 等组件依赖 - managed_components 纳入版本管理 ### 配网模式轻量化启动 - BoxAudioCodec: 新增 output_only 模式，仅创建 I2S TX 通道（省 ~13KB DMA） 跳过 ES7210 ADC 初始化（省 ~2-4KB） - AudioCodec: 新增 StartOutputOnly() 方法，仅启用扬声器输出 - Application: 配网模式跳过 Opus 编码器、输入重采样器、协议初始化、 天气位置检测等网络业务 - 板级构造函数: 配网模式跳过电池检测、IMU传感器、PowerSaveTimer ### WifiBoard 配网流程修复 - NeedsProvisioning() 静态方法: 读取 NVS force_ap 和 SSID 列表， 用于提前判断配网模式 - force_ap 竞态修复: 构造函数不再清零 force_ap，改在 StartNetwork() 清零， 确保 NeedsProvisioning() 能正确读到 force_ap=1 - Application 缓存 provisioning_mode_ 成员变量，避免重复读 NVS ### BLE 配网重启修复 - 配网成功后用 esp_timer 延迟重启替代 xTaskCreate， 避免内存紧张时任务创建失败导致设备不重启 - 注释掉 WiFi 连接成功后的 MAC 地址发送步骤 ### sdkconfig 内存优化 - BT_ALLOCATION_FROM_SPIRAM_FIRST=y (BLE 动态分配优先 PSRAM) - SPIRAM_MALLOC_RESERVE_INTERNAL=32768 - NVS_ALLOCATE_CACHE_IN_SPIRAM=y - WiFi 静态缓冲区数量优化 (RX=10, TX=8) Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>
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Messaging
Messaging (lv_msg) is a classic []publisher subscriber](https://en.wikipedia.org/wiki/Publish%E2%80%93subscribe_pattern) implementation for LVGL.
IDs
Both the publishers and the subscribers needs to know the message identifiers.
In lv_msg these are simple uint32_t integers. For example:
#define MSG_DOOR_OPENED 1
#define MSG_DOOR_CLOSED 2
#define MSG_USER_NAME_CHANGED 100
#define MSG_USER_AVATAR_CHANGED 101
You can orgnaize the message IDs as you wish.
Both parties also need to know about the format of teh payload. E.g. in the above example
MSG_DOOR_OPENED and MSG_DOOR_CLOSED has no payload but MSG_USER_NAME_CHANGED can have a const char * payload containing the user name, and MSG_USER_AVATAR_CHANGED a const void * image source with the new avatar image.
Send message
Messages can be sent with lv_msg_send(msg_id, payload). E.g.
lv_msg_send(MSG_USER_DOOR_OPENED, NULL);
lv_msg_send(MSG_USER_NAME_CHANGED, "John Smith");
Subscribe to a message
lv_msg_subscribe(msg_id, callback, user_data) can be used to subscribe to message.
The callback should look like this:
static void user_name_subscriber_cb(void * s, lv_msg_t * m)
{
/*s: a subscriber obeject, can be used to unscubscribe*/
/*m: a message object with the msg_id, payload, and user_data (set durung subscription)*/
...do something...
}
From lv_msg_t the followings can be used to get some data:
lv_msg_get_id(m)lv_msg_get_payload(m)lv_msg_get_user_data(m)
Subscribe with an lv_obj
It's quite typical that an LVGL widget is interested in some messages.
To make it simpler lv_msg_subsribe_obj(msg_id, obj, user_data) can be used.
If a new message is published with msg_id an LV_EVENT_MSG_RECEIVED event will be sent to the object.
For example:
lv_obj_add_event_cb(user_name_label, user_name_label_event_cb, LV_EVENT_MSG_RECEIVED, NULL);
lv_msg_subsribe_obj(MSG_USER_NAME_CHANGED, user_name_label, NULL);
...
void user_name_label_event_cb(lv_event_t * e)
{
lv_obj_t * label = lv_event_get_target(e);
lv_msg_t * m = lv_event_get_msg(e);
lv_label_set_text(label, lv_msg_get_payload(m));
}
Unsubscribe
lv_msg_subscribe returns a pointer which can be used to unsubscribe:
void * s1;
s1 = lv_msg_subscribe(MSG_USER_DOOR_OPENED, some_callback, NULL);
...
lv_msg_unsubscribe(s1);
Example
.. include:: ../../examples/others/msg/index.rst
API
.. doxygenfile:: lv_msg.h
:project: lvgl