Stm32f4-tft-spi timing logic analyzer commissioning record

debugging TFT I don't know whether the data is written TFT
Connect the logic analyzer to see ,

Because I'm not sure about software SPI Whether it can be used , So first use hardware SPI test
Then switch to Software SPI

It is right to test the timing , Normal display

The code is as follows

Then turn on the logic analyzer I use it logic2, Set as follows , Pay attention to the settings in the red box ,（ Change it to CPHA=1 The displayed data is not right ）

You can see that all the data written is 0xF800, Macro definition RGB565 Red is 0xF800

Look at what else is written in this write fill function ,

void LCD_direction(u8 direction)
{
     
			lcddev.setxcmd=0x2A;
			lcddev.setycmd=0x2B;
			lcddev.wramcmd=0x2C;
	switch(direction){
    		  
		case 0:						 	 		
			lcddev.width=LCD_W;
			lcddev.height=LCD_H;	
			lcddev.xoffset=52;
			lcddev.yoffset=40;
			LCD_WriteReg(0x36,0);//BGR==1,MY==0,MX==0,MV==0
		break;
		case 1:		//select direction=1
			lcddev.width=LCD_H;
			lcddev.height=LCD_W;
			lcddev.xoffset=40;
			lcddev.yoffset=53;
			LCD_WriteReg(0x36,(1<<6)|(1<<5));//BGR==1,MY==1,MX==0,MV==1
		break;
		case 2:						 	 		
			lcddev.width=LCD_W;
			lcddev.height=LCD_H;
			lcddev.xoffset=53;
			lcddev.yoffset=40;			
			LCD_WriteReg(0x36,(1<<6)|(1<<7));//BGR==1,MY==0,MX==0,MV==0
		break;
		case 3:
			lcddev.width=LCD_H;
			lcddev.height=LCD_W;
			lcddev.xoffset=40;
			lcddev.yoffset=52;
			LCD_WriteReg(0x36,(1<<7)|(1<<5));//BGR==1,MY==1,MX==0,MV==1
		break;	
		default:break;
	}				
}	 

void LCD_WriteRAM_Prepare(void)
{
    
	LCD_WR_REG(lcddev.wramcmd); //lcddev.wramcmd=0x2C
}	

lcddev.setxcmd Parameter in void LCD_direction(u8 direction) There are updates inside ,lcddev.setxcmd=0x2A

#define LCD_W 135 //TFT 1.14
#define LCD_H 240

void LCD_Fill(u16 sx,u16 sy,u16 ex,u16 ey,u16 color)
{
      	
	u16 i,j;			
	u16 width=ex-sx+1; 		// Get the width of the fill 
	u16 height=ey-sy+1;		// Height 
	LCD_SetWindows(sx,sy,ex,ey);// Set the display window 
	for(i=0;i<height;i++)
	{
    
		for(j=0;j<width;j++)
		Lcd_WriteData_16Bit(color);	// Write data  
	}
	LCD_SetWindows(0,0,lcddev.width-1,lcddev.height-1);// The recovery window is set to full screen 
}

void LCD_SetWindows(u16 xStar, u16 yStar,u16 xEnd,u16 yEnd)
{
    	
	LCD_WR_REG(lcddev.setxcmd);				//0x2A
	LCD_WR_DATA((xStar+lcddev.xoffset)>>8); //(0+40)>>8=0x00
	LCD_WR_DATA(xStar+lcddev.xoffset);		//0x28
	LCD_WR_DATA((xEnd+lcddev.xoffset)>>8);	//(240+40)>>8=0x01
	LCD_WR_DATA(xEnd+lcddev.xoffset);		//0x18

	LCD_WR_REG(lcddev.setycmd);				//0x2B
	LCD_WR_DATA((yStar+lcddev.yoffset)>>8);	//0+53 >>8=0x00
	LCD_WR_DATA(yStar+lcddev.yoffset);		//0x35
	LCD_WR_DATA((yEnd+lcddev.yoffset)>>8);	//135+53 >>8=0x00
	LCD_WR_DATA(yEnd+lcddev.yoffset);		//0xBC

	LCD_WriteRAM_Prepare();	// Start writing GRAM //lcddev.wramcmd=0x2C 
}   

Therefore, the beginning of the data should be ：
0x2A–0x00–0x28–0x01–0x18------0x2B–0x00–0x35–0x00–0x35–0x00–0xBC-----0x2C-----0xF8-0x00–0xF8-0x00…
Data captured by logic analyzer ：

The captured data is consistent with the calculation .