119 lines
4.2 KiB
Markdown
119 lines
4.2 KiB
Markdown
# 编码实现 - AMOLED 显示与字模驱动 (Docs/60_coding/mod-lcd.md)
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本文件对应 Truly AMOLED 驱动与图文渲染的具体编码实现细节。
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## 1. 对应代码源文件
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* [Drivers/lcd.c](file:///c:/workfile/105/stc32g12k128/Drivers/lcd.c) (LCD 初始化、SPI 数据写、画图画字函数)
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* [Drivers/lcd.h](file:///c:/workfile/105/stc32g12k128/Drivers/lcd.h) (管脚接口与画图画字声明)
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* [Drivers/lcd_font.h](file:///c:/workfile/105/stc32g12k128/Drivers/lcd_font.h) (ASCII 8x16 点阵字模与图标数据)
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## 2. 关键代码片段与逻辑实现
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### 2.1 局部窗口设置 (X 轴偏移量修正)
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在 `lcd.c` 中配置窗口时，需要将坐标对齐到 Truly AMOLED (RM69310) 在 120x240 面板下的实际 GRAM 范围，加入 X 轴 4 像素的偏移，Y 轴无偏移：
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```c
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void LCD_SetWindow(u16 x1, u16 y1, u16 x2, u16 y2) {
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x1 += 4;
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x2 += 4;
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LCD_WriteCmd(0x2A); // Column Address Set
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LCD_WriteData(x1 >> 8);
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LCD_WriteData(x1 & 0xFF);
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LCD_WriteData(x2 >> 8);
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LCD_WriteData(x2 & 0xFF);
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LCD_WriteCmd(0x2B); // Row Address Set
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LCD_WriteData(y1 >> 8);
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LCD_WriteData(y1 & 0xFF);
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LCD_WriteData(y2 >> 8);
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LCD_WriteData(y2 & 0xFF);
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}
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```
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### 2.2 电池图标与动态百分比 (包含充电 + 后缀) 渲染
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在 `main.c` 的时钟页面刷新中，获取当前百分比及充电状态，动态绘制到状态栏：
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```c
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void UI_ShowClockPage(SystemState state, u8 hour, u8 min) {
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char bat_str[10];
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u8 bat_val = Read_Battery_Percent();
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bit charging = Is_Charging();
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LCD_Clear(COLOR_BLACK);
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// 充电状态判定与百分比字符串格式化
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if (charging) {
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if (bat_val >= 100) {
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bat_str[0] = '1'; bat_str[1] = '0'; bat_str[2] = '0'; bat_str[3] = '%'; bat_str[4] = '+'; bat_str[5] = ' ';
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} else {
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bat_str[0] = '0' + (bat_val / 10);
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bat_str[1] = '0' + (bat_val % 10);
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bat_str[2] = '%';
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bat_str[3] = '+';
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bat_str[4] = ' ';
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}
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LCD_ShowString(60, 24, bat_str, COLOR_GRAY, COLOR_BLACK);
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} else {
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if (bat_val >= 100) {
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bat_str[0] = '1'; bat_str[1] = '0'; bat_str[2] = '0'; bat_str[3] = '%'; bat_str[4] = ' ';
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} else {
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bat_str[0] = '0' + (bat_val / 10);
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bat_str[1] = '0' + (bat_val % 10);
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bat_str[2] = '%';
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bat_str[3] = ' ';
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}
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LCD_ShowString(76, 24, bat_str, COLOR_GRAY, COLOR_BLACK);
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}
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LCD_ShowImage(82, 27, 20, 10, bmp_battery_20x10, COLOR_GRAY, COLOR_BLACK);
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}
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```
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### 2.3 对码确认二步微调界面渲染实现
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在 `main.c` 中通过判断 `confirm_edit_focus` 的值动态渲染闪烁选框：
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```c
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void UI_ShowPairConfirmPage(u8 edit_focus, u8 type, u8 selected_suffix) {
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char num_buf[10];
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LCD_Clear(COLOR_BLACK);
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LCD_ShowStringCentered(40, "v RECU", COLOR_GREEN, COLOR_BLACK);
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// 步骤1：渲染传感器类型
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if (edit_focus == 0) {
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// 类型处于编辑状态，左右加选框或括号
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char type_buf[20];
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type_buf[0] = '[';
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type_buf[1] = ' ';
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strcpy(&type_buf[2], sensor_prefixes[type]);
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strcat(type_buf, " ]");
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LCD_ShowStringCentered(90, type_buf, COLOR_CYAN, COLOR_BLACK);
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} else {
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// 锁定显示
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LCD_ShowStringCentered(90, sensor_prefixes[type], COLOR_WHITE, COLOR_BLACK);
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}
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// 渲染位图图标
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LCD_ShowImage(44, 120, 32, 32, sensor_icons[type], COLOR_WHITE, COLOR_BLACK);
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// 步骤2：渲染数字序号
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num_buf[0] = '[';
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num_buf[1] = ' ';
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num_buf[2] = ' ';
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num_buf[3] = '0' + (selected_suffix / 10);
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num_buf[4] = '0' + (selected_suffix % 10);
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num_buf[5] = ' ';
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num_buf[6] = ' ';
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num_buf[7] = ']';
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num_buf[8] = ' ';
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if (edit_focus == 1) {
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// 序号处于编辑状态，高亮显示
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LCD_ShowStringCentered(180, num_buf, COLOR_CYAN, COLOR_BLACK);
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} else {
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// 灰度非编辑状态显示
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LCD_ShowStringCentered(180, num_buf, COLOR_GRAY, COLOR_BLACK);
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}
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}
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```
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<!-- Checked and verified with SGM3833 boost/inverting PMIC removal and LCD_PWR_CTRL update changes V2 -->
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