lvgl-v7/Origin__V0.3_LVGL7/UART/SimplUART/APP/lcd.c

#include "BoardCfg.h"
#include "lcd.h"

#if LCD_RGB
u32 *LCD_Buffer = (u32 *)SDRAMM_BASE;
/**
 * @brief SDRAM 初始化
 *
 */
void MemoryInit(void)
{
	SDRAM_InitStructure SDRAM_InitStruct;

	PORT->PORTP_SEL0 = 0xAAAAAAAA; // PP0-23 => ADDR0-23
	// PORT->PORTP_SEL1 = 0x0000AAAA;
	PORT->PORTP_SEL1 &= ~0x00000F0F;
	PORT->PORTP_SEL1 |= 0x00000A0A;

	PORT->PORTM_SEL0 = 0xAAAAAAAA; // PM0-15 => DATA15-0
	PORT->PORTM_INEN = 0xFFFF;

	PORT->PORTM_SEL1 = 0x888; // PM16 => OEN、PM17 => WEN、PM18 => NORFL_CSN、PM19 => SDRAM_CSN、PM20 => SRAM_CSN、PM21 => SDRAM_CKE

	SDRAM_InitStruct.CellSize = SDRAM_CELLSIZE_64Mb;
	SDRAM_InitStruct.CellBank = SDRAM_CELLBANK_4;
	SDRAM_InitStruct.CellWidth = SDRAM_CELLWIDTH_16;
	SDRAM_InitStruct.CASLatency = SDRAM_CASLATENCY_2;
	SDRAM_InitStruct.TimeTMRD = SDRAM_TMRD_3;
	SDRAM_InitStruct.TimeTRRD = SDRAM_TRRD_2;
	SDRAM_InitStruct.TimeTRAS = SDRAM_TRAS_6;
	SDRAM_InitStruct.TimeTRC = SDRAM_TRC_8;
	SDRAM_InitStruct.TimeTRCD = SDRAM_TRCD_3;
	SDRAM_InitStruct.TimeTRP = SDRAM_TRP_3;
	SDRAM_Init(&SDRAM_InitStruct);
}
/**
 * @brief RGB控制器初始化
 *
 */
void RGBLCDInit(void)
{
	LCD_InitStructure LCD_initStruct;

	GPIO_Init(GPIOB, PIN12, 1, 0, 0); //背光控制
	GPIO_SetBit(GPIOB, PIN12);		  //点亮背光

	PORT->PORTN_SEL0 = 0xAAAAAAAA; // GPION.0～15  LCD_DATA0～15
	PORT->PORTN_SEL1 = 0xAA;

	LCD_initStruct.HnPixel = LCD_HDOT;
	LCD_initStruct.VnPixel = LCD_VDOT;
	LCD_initStruct.Hfp = 32;
	LCD_initStruct.Hbp = 44;
	LCD_initStruct.Vfp = 4;
	LCD_initStruct.Vbp = 4;
	LCD_initStruct.ClkDiv = LCD_CLKDIV_2; // 注意手册上屏幕的时钟要求
	LCD_initStruct.ClkAlways = 0;
	LCD_initStruct.SamplEdge = LCD_SAMPLEDGE_FALL;
	LCD_initStruct.HsyncWidth = LCD_HSYNC_1DOTCLK;
	LCD_initStruct.IntEOTEn = 1;
	LCD_Init(LCD, &LCD_initStruct);
	LCD->SRCADDR = (uint32_t)LCD_Buffer;
	LCD_Start(LCD);
}
/**
 * @brief 刷屏函数1，写入速度最快
 *
 * @param color 颜色
 */
void LCD_Full_Screen(u16 color)
{
	u32 tisColor = color << 16 | color;
	for (u32 i = 0; i < LCD_VDOT * LCD_HDOT; i++)
	{
		LCD_Buffer[i] = tisColor;
	}
}
/**
 * @brief 写入数据
 *
 * @param val
 * @param pos
 */
void WriteByte(u32 val, u32 pos)
{
	if (pos % 2)
	{
		pos = pos / 2;
		u32 temp = LCD_Buffer[pos];
		temp = temp & 0xffff;
		temp = temp | (val << 16);
		LCD_Buffer[pos] = temp;
	}
	else
	{
		pos = pos / 2;
		u32 temp = LCD_Buffer[pos];
		temp = temp & 0xffff0000;
		temp = temp | (val);
		LCD_Buffer[pos] = temp;
	}
}
/**
 * @brief 快速写入buff
 *
 * @param buff
 * @param pos
 * @param len
 */
void WriteBuff(u16 *buff, u32 pos, u32 len)
{
	if (pos % 2)
	{
		WriteByte(*buff, pos);
		len--;
		buff++;
		pos++;
	}
	u32 *buff32 = (u32 *)buff;
	pos = pos / 2;
	for (u32 i = 0; i < len / 2; i++)
	{
		LCD_Buffer[pos + i] = buff32[i];
	}
}
/**
 * @brief 写入整行
 *
 */
void LCD_DrawWholeLine(u32 y, u16 color)
{
	u16 temp[LCD_HDOT];
	for (u32 i = 0; i < LCD_HDOT; i++)
	{
		temp[i] = color;
	}
	WriteBuff(temp, (y * LCD_HDOT), LCD_HDOT);
}
/**
 * @brief 绘制一行数据
 *
 * @param y 行号
 * @param x 列号
 * @param color 颜色
 */
void LCD_DrawLen(u32 y, u32 x1, u32 x2, u16 *color)
{

	WriteBuff(color, (y * LCD_HDOT + x1), (x2 - x1 + 1));
}
/**
 * @brief 写入整行2
 *
 * @param y
 * @param color
 */
void LCD_DrawWholeLine2(u32 y, u16 color)
{

	u16 temp[LCD_HDOT];
	for (u32 i = 0; i < LCD_HDOT; i++)
	{
		temp[i] = color;
	}
	LCD_DrawLen(y, 0,799, temp);
}
/**
 * @brief 刷屏函数2，按行写入
 *
 * @param color
 */
void LCD_Full_Screen2(u16 color)
{
	for (u32 i = 0; i < LCD_VDOT; i++)
	{
		LCD_DrawWholeLine(i, color);
	}
}
/**
 * @brief LCD描点函数
 *
 * @param x
 * @param y
 * @param color
 */
void LCD_Draw_Point(u32 x, u32 y, u16 color)
{
	WriteByte(color, (x + y * LCD_HDOT));
}
/**
 * @brief 刷屏函数3，描点函数，速度慢
 *
 * @param color
 */
void LCD_Full_Screen3(u16 color)
{
	for (u32 i = 0; i < LCD_VDOT; i++)
	{
		for (u32 j = 0; j < LCD_HDOT; j++)
		{
			LCD_Draw_Point(j, i, color);
		}
	}
}

/**
 * @brief RGB发送完成中断回调
 *
 *
 */
void LCD_Handler(void)
{
	LCD_INTClr(LCD);
	LCD_Start(LCD);
}
#else
void MemoryInit(void) { ; }
void RGBLCDInit(void) { ; }

#endif