/* E35RK-T-XW120-CB Selectable MCU, RGB, and Serial TFT Display Driver File
   Created on February 6, 2026, 12:15 PM

   @Company
	 Focus LCDs
	 LCDs Made Simple
	 www.focuslcds.com

   @File Name
	 E35RK-T-XW120-CB-3SPI-18BIT-RGB-CODE.txt

   @Summary
	 This is the driver source file for the TFT Display
	 Display:         3.5" TFT LCD 240 x 320
	 Controller Chip: ILI9341
	 Interface:       3SPI-18BIT RGB
	 MCU/MPU:         Generic

   @Version
	 Version 1.0.0 (Semantic Versioning 2.0.0)

   @Description
	 This source file provides initialization for the 3.5" TFT display.
*/
/*******************************************************************************/

/*******************************************************************************
	(c) 2023 Focus LCDs and its subsidiaries. You may use this software and any
	derivatives exclusively with Focus LCDs products.

	THIS SOFTWARE IS SUPPLIED BY FOCUS LCDS "AS IS". NO WARRANTIES, WHETHER
	EXPRESS, IMPLIED OR STATUTORY, APPLY TO THIS SOFTWARE, INCLUDING ANY IMPLIED
	WARRANTIES OF NON-INFRINGEMENT, MERCHANTABILITY, AND FITNESS FOR A
	PARTICULAR PURPOSE, OR ITS INTERACTION WITH FOCUS LCDS PRODUCTS, COMBINATION
	WITH ANY OTHER PRODUCTS, OR USE IN ANY APPLICATION.

	IN NO EVENT WILL FOCUS LCDS BE LIABLE FOR ANY INDIRECT, SPECIAL, PUNITIVE,
	INCIDENTAL OR CONSEQUENTIAL LOSS, DAMAGE, COST OR EXPENSE OF ANY KIND
	WHATSOEVER RELATED TO THE SOFTWARE, HOWEVER CAUSED, EVEN IF FOCUS LCDS HAS
	BEEN ADVISED OF THE POSSIBILITY OR THE DAMAGES ARE FORESEEABLE. TO THE
	FULLEST EXTENT ALLOWED BY LAW, FOCUS LCDS' TOTAL LIABILITY ON ALL CLAIMS IN
	ANY WAY RELATED TO THIS SOFTWARE WILL NOT EXCEED THE AMOUNT OF FEES, IF ANY,
	THAT YOU HAVE PAID DIRECTLY TO FOCUSLCDS FOR THIS SOFTWARE.

	FOCUS LCDS PROVIDES THIS SOFTWARE CONDITIONALLY UPON YOUR ACCEPTANCE OF THESE
	TERMS.
*******************************************************************************/



/*
void write_command (unsigned char y) // (uchar y,uchar x)
{
  unsigned char i;
csb=0;
sclb=0;
sdi=0;
sclb=1;
for(i=0;i<8;i++)
    {
     sclb=0;      
      if (y&0x80)
       {
          sdi=1;
        }
          else
         {
          sdi=0;
         }
       sclb=1;
      y=y<<1;
    }
csb=1;
}
//***************************************************************
void write_data(unsigned char w) // (uchar w, uchar v)
{
  unsigned char i;
csb=0;
sclb=0;
sdi=1;
sclb=1;
for(i=0;i<8;i++)
 {
  sclb=0;
     if (w&0x80)
     {
        sdi=1;
       }
          else
        {
         sdi=0;
        }
   sclb=1;
   w=w<<1;
    }
csb=1;
}
/*************************************************/
void initi(void)
{
   res=1;
   delay(1);
   res=0;
   delay(10);
   res=1;
   delay(120);
//--------------------------------ST7789S Frame rate setting----------------------------------//
write_command(0xcf); 
write_data(0x00);
write_data(0xF9); 
write_data(0x30);

write_command(0xed); 
write_data(0x64);
write_data(0x03);
write_data(0x12);
write_data(0x81);

write_command(0xcb); 
write_data(0x39);
write_data(0x2c);
write_data(0x00);
write_data(0x34);
write_data(0x06);

write_command(0xea); 
write_data(0x00);
write_data(0x00);

//write_command(0xe8); 
//write_data(0x85);
//write_data(0x00);
//write_data(0x78);

write_command(0xe9); 
write_data(0x85);
write_data(0x00);
write_data(0x78);

write_command(0xC0); //Power control
write_data(0x21); //VRH[5:0]

write_command(0xC1); //Power control
write_data(0x10); //SAP[2:0];BT[3:0]

//write_command(0xC2);
//write_data(0x11);

write_command(0xC5); //VCM control
write_data(0x1f);
write_data(0x27);

write_command(0xc7);
write_data(0xbe); //a2

write_command(0x3A); 
write_data(0x66);

write_command(0x36); // Memory Access Control
write_data(0x00);

write_command(0xB1); // Frame Rate Control
write_data(0x00);
write_data(0x1b);

write_command(0xB6); // Display Function Control
write_data(0x0A);
write_data(0xA2);
write_data(0x27);
write_data(0x04);

write_command(0xF2); // 3Gamma Function Disable
write_data(0x00);

write_command(0xF7);
write_data(0x20);

write_command(0x26); //Gamma curve selected
write_data(0x01);

write_command(0xE0); //Set Gamma
write_data(0x0f);
write_data(0x26);
write_data(0x22);
write_data(0x0a);
write_data(0x0b);
write_data(0x05);
write_data(0x4f);
write_data(0xc6);
write_data(0x3d);
write_data(0x05);
write_data(0x0d);
write_data(0x00);
write_data(0x13);
write_data(0x0d);
write_data(0x00);

write_command(0xE1); //Set Gamma
write_data(0x00);
write_data(0x1b);
write_data(0x1f);
write_data(0x02);
write_data(0x0e);
write_data(0x02);
write_data(0x38);
write_data(0x33);
write_data(0x51);
write_data(0x06);
write_data(0x14);
write_data(0x0b);
write_data(0x36);
write_data(0x38);
write_data(0x0F);
/*********** RGB SET****************
 write_command(0xB0); 
 write_data(0xC0);

 write_command(0xf6);
 write_data(0x00);
 write_data(0x00);
 write_data(0x06);//08 
//*****************************************
write_command(0x11); //Exit Sleep
delay(120);
write_command(0x29); //display on
write_command(0x2c); 
}
//*********************************************************************
void EnterSleep (void)
{
    write_command(0x28);
    delay(20);
    write_command(0x10); 

    RGB_OFF();
   delay(50);
  }

//*********************************************************
void ExitSleep (void)

 {
    RGB_ON();
    delay(20);
    write_command(0x11);
    delay(120);
    write_command(0x29);

   }