這個章節主要講解N9H30_LCD初始化部分：

1、RGB管腳初始化

// Configure multi-function pin for LCD interface// GPG6 (CLK), GPG7 (HSYNC)outpw(REG_SYS_GPG_MFPL, (inpw(REG_SYS_GPG_MFPL) & ~0xFF000000) | 0x22000000);// GPG8 (VSYNC), GPG9 (DEN)outpw(REG_SYS_GPG_MFPH, (inpw(REG_SYS_GPG_MFPH) & ~0xFF) | 0x22);//DATA pin (16bit)//GPA0 ~ GPA7 (DATA0~7)outpw(REG_SYS_GPA_MFPL, 0x22222222);//GPA8 ~ GPA15 (DATA8~15)outpw(REG_SYS_GPA_MFPH, 0x22222222);

2、時鐘初始化

// LCD clock is selected from UPLL and divide to 20MHz

outpw(REG_CLK_DIVCTL1, (inpw(REG_CLK_DIVCTL1) & ~0xFF1F) | 0xe18);

3、N9H30兼容LCD的相關屏幕參數

首先調到如下函數

// Init LCD interface for ST7796S LCD modulevpostLCMInit(DIS_PANEL_E50A2V1);

通過獲取DIS_PANEL_E50A2V1數組值把LCD參數寫到vpostLCMInit對應N9H30寄存器中。

4、操作到這部，參數基本設定完成，如下是完整的代碼

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