Modularize main.c into rgb, event, database, ui, system, and app_manager modules

App/rgb.c

@@ -0,0 +1,84 @@
+#include "rgb.h"
+
+/* ====== SPI 寄存器定义 (如果 stc32g.h 没定义) ====== */
+#ifndef P_SW1
+sfr P_SW1  = 0xA2;
+sfr SPCTL  = 0xCE;
+sfr SPSTAT = 0xCD;
+sfr SPDAT  = 0xCF;
+#endif
+
+void SPI_Init(void)
+{
+    P_SW1 = (P_SW1 & ~0x0C) | 0x04; // 映射 SPI 至第二组 (P2.2~P2.5)
+    SPCTL = 0xD1;                   // SSIG=1, SPEN=1, MSTR=1, SPR0=1 (3.0 MHz)
+    SPSTAT = 0xC0;                  // 清除标志
+}
+
+void Encode_Byte(u8 val, u8 *out)
+{
+    u32 spi_val = 0;
+    u8 i;
+    for (i = 0; i < 8; i++)
+    {
+        spi_val <<= 3;
+        if (val & (0x80 >> i))
+        {
+            spi_val |= 6; // 1码 -> 110
+        }
+        else
+        {
+            spi_val |= 4; // 0码 -> 100
+        }
+    }
+    out[0] = (u8)(spi_val >> 16);
+    out[1] = (u8)(spi_val >> 8);
+    out[2] = (u8)spi_val;
+}
+
+void RGB_Send(u8 g1, u8 r1, u8 b1, u8 g2, u8 r2, u8 b2)
+{
+    u8 idata spi_buf[18];
+    u8 i;
+    
+    // 转码 3-bit 编码
+    Encode_Byte(g1, &spi_buf[0]);
+    Encode_Byte(r1, &spi_buf[3]);
+    Encode_Byte(b1, &spi_buf[6]);
+    Encode_Byte(g2, &spi_buf[9]);
+    Encode_Byte(r2, &spi_buf[12]);
+    Encode_Byte(b2, &spi_buf[15]);
+    
+    EA = 0; // 关中断
+    
+    // 临时将 P2.5 (MOTOR) 配置为高阻输入以隔离时钟信号
+    P2M1 |= (1 << 5);
+    P2M0 &= ~(1 << 5);
+    
+    SPI_Init(); // 启动 SPI
+    
+    for (i = 0; i < 18; i++)
+    {
+        SPDAT = spi_buf[i];
+        while (!(SPSTAT & 0x80)); // 等待发送完毕
+        SPSTAT = 0xC0;
+    }
+    
+    SPCTL = 0; // 关闭 SPI
+    
+    // 配置 P2.3 (RGB_DIN) 为推挽输出并拉低 100us 做 Reset
+    P2M1 &= ~(1 << 3);
+    P2M0 |= (1 << 3);
+    RGB_DIN = 0;
+    for (i = 0; i < 200; i++)
+    {
+        _nop_(); _nop_(); _nop_();
+    }
+    
+    // 恢复 P2.5 (MOTOR) 为推挽输出以进行振动控制
+    P2M1 &= ~(1 << 5);
+    P2M0 |= (1 << 5);
+    MOTOR = 0;
+    
+    EA = 1; // 开中断
+}