you did a good job.I`m not sure I have time to spend on µGFX library, I write direct code.my problem is that the SPI works well, but when I configure the ili9341 for rgb565 and then using LTDC, the LCD doesnt work well and i dont know whats the problem.here is the code for initializing ili9341:
void lcd_initialization(void){
lcd_cmd(0x28); //Display Off
lcd_cmd(0x11); //Exit Sleep,Start internal OSC
delay_ds(120000); //delay for 120 miliseconds
lcd_cmd(0x00B6); //Display Function Control
lcd_data(0x000A);
lcd_data(0x0A2);
lcd_data(0x27);
lcd_data(0x4);
lcd_cmd(0x00B4); //Display Inversion Control
lcd_data(0x004);
lcd_cmd(0xB5); //Blanking Porch Control
lcd_data(0x4);
lcd_data(0x2);
lcd_data(0xa);
lcd_data(0x14);
lcd_cmd(0xCF); //Power control B
lcd_data(0x0);
lcd_data(0x81);
lcd_data(0xc0);
lcd_cmd(0xEF);
lcd_data(0x3);
lcd_data(0x80);
lcd_data(0x2);
lcd_cmd(0xED); // Power on sequence control
lcd_data(0x64);
lcd_data(0x03);
lcd_data(0x12);
lcd_data(0x81);
lcd_cmd(0xE8); // Driver timing control A
lcd_data(0x85);
lcd_data(0x01);
lcd_data(0x798);
lcd_cmd(0xCB); // Power control A
lcd_data(0x39);
lcd_data(0x2c);
lcd_data(0x0);
lcd_data(0x34);
lcd_data(0x2);
lcd_cmd(0x00F7); // Pump ratio control
lcd_data(0x0020);
lcd_cmd(0x00CA);
lcd_data(0x0083);
lcd_data(0x0002);
lcd_data(0x0000);
lcd_cmd(0x00EA); // Driver timing control B
lcd_data(0x0000);
lcd_data(0x0000);
lcd_cmd(0x00C0); //Power Control 1
lcd_data(0x005);
lcd_cmd(0x00C1); //Power Control 2
lcd_data(0x0011);
lcd_cmd(0x00C5); //VCOM Control 1
lcd_data(0x0045);
lcd_data(0x0045);
lcd_cmd(0x0036); //Memory Access Control
lcd_data(0x0008);
lcd_cmd(0x00B1); //Frame Rate Control (In Normal Mode/Full Colors)
lcd_data(0x0000);
lcd_data(0x001b);
lcd_cmd(0x00C7); //VCOM Control 2
lcd_data(0x00A2);
lcd_cmd(0x00F2); // Enable 3G
lcd_data(0x000);
lcd_cmd(0x26); //Gamma Set
lcd_data(0x1);
lcd_cmd(0x00E0); //Positive Gamma Correction
lcd_data(0x001F);
lcd_data(0x001a);
lcd_data(0x0018);
lcd_data(0x000a);
lcd_data(0x000f);
lcd_data(0x0006);
lcd_data(0x0045);
lcd_data(0x0087);
lcd_data(0x0032);
lcd_data(0x000a);
lcd_data(0x0007);
lcd_data(0x002);
lcd_data(0x001f);
lcd_data(0x0007);
lcd_data(0x0005);
lcd_data(0x0000);
lcd_cmd(0x00E1); //Negative Gamma Correction
lcd_data(0x0000);
lcd_data(0x0025);
lcd_data(0x0027);
lcd_data(0x0005);
lcd_data(0x0010);
lcd_data(0x0009);
lcd_data(0x003a);
lcd_data(0x0078);
lcd_data(0x004d);
lcd_data(0x0005);
lcd_data(0x0018);
lcd_data(0x000d);
lcd_data(0x0038);
lcd_data(0x003a);
lcd_data(0x001F);
delay_ds(120000);
lcd_cmd(0x002A); //Column Address Set
lcd_data(0x0);
lcd_data(0x0);
lcd_data(0x0000);
lcd_data(0x00EF);
lcd_cmd(0x002B); //Page Address Set
lcd_data(0x0000);
lcd_data(0x0000);
lcd_data(0x0001);
lcd_data(0x003F);
lcd_cmd(0x003A); //COLMOD: Pixel Format Set
lcd_data(0x0055);
lcd_cmd(0xF6); //Interface Control
lcd_data(0x1);
lcd_data(0x30);
lcd_data(0x0);
lcd_cmd(0xB7); //Entry Mode Set
lcd_data(0x7);
lcd_cmd(0xB0); //RGB Interface Signal Control
lcd_data(0x40);
lcd_cmd(0x0029); //Display ON
lcd_cmd(0x002C); //Memory Write
}
and below is for stm32f429 LTDC:
#include "stm32f4xx.h"
#include "initialization.h"
#include "White-Tiger-vertical.h"
#include "CAR.h"
#define LCD_WIDTH 320 //Vadr
#define LCD_HEIGHT 240 //Hadr
#define HFP 10
#define HSYNC 10
#define HBP 20
#define VFP 4
#define VSYNC 2
#define VBP 2
#define ACTIVE_W (HSYNC + LCD_WIDTH + HBP - 1)
#define ACTIVE_H (VSYNC + LCD_HEIGHT + VBP - 1)
#define TOTAL_WIDTH (HSYNC + HBP + LCD_WIDTH + HFP-1) //horizontal period
#define TOTAL_HEIGHT (VSYNC + VBP + LCD_HEIGHT + VFP-1) //vertical period
#define t2start TIM2->CR1|= 0x0001 // Enable Counting
int delay_ds(int us){
int value;
value=((us*90)-1);
TIM2->ARR=value; //giving value for counting
t2start; // Enable Counting
while(TIM2->CR1&1);
us=0;
value=0; return(0);}
int main(void){
int j,i,x=0;
RCC->APB2RSTR=0;
RCC->AHB1ENR=0x1ff;
RCC->APB1ENR|=0xb; //CONNECTS clock to TIM2 and TIM3 and TIM5
RCC->APB2ENR|=1<<20; //connect clock to SPI5
RCC->APB2ENR|=1<<26; //enabled LTDC clock
RCC->PLLSAICFGR|=0x102<<6; //PLLSAIN=254.should be written only if PLLSAI is disabled
RCC->PLLSAICFGR|=5<<28; //PLLSAIR=5.should be written only if PLLSAI is disabled
RCC->DCKCFGR|=2<<16; //SETS PLLCDCLK(THE DIVIDER AFTER PLLSAIR)
//LTDC CLOCK IS SET TO 6.45 MHz
RCC->CR|=1<<28; //ENABLE PLLSAI
while(!(RCC->CR & RCC_CR_PLLSAIRDY)); //WAIT FOR PLLSAI TO LOCK
TIM2->DIER|= 0x0001; //DMA/IRQ Enable Register - enable IRQ on update
TIM2->CR1|=1<<3; //Counter stops counting at the next update event (clearing the bit CEN)
//SPI5 CONFIGURATION
SPI5->CR1=0;
SPI5->CR1|=1<<3; //BAUDRATE: APB2 WORKS WITH 90MHz.SO PRESCALER=4 AND BAUDRATE=22500000
SPI5->CR1|=1<<2; //SPI1 AS MASTER
SPI5->CR1|=1<<15; //1-line bidirectional data mode selected
SPI5->CR1|=1<<14; //Output enabled (transmit-only mode)
SPI5->CR2|=1<<2; //HARDWARE NSS
//SPI5 CONFIGURATION
GPIOC->MODER|=1<<4;
GPIOD->MODER|=1<<26;
GPIOF->MODER|=0x2a<<14;
GPIOF->AFR[0]=0x50000000;
GPIOF->AFR[1]=0x55;
lcd_initialization();
//PIN CONFIGURATION FOR LCD
//All GPIOs have to be configured in very high-speed mode
GPIOA->MODER=0x2802280;
GPIOB->MODER=0xaa000a;
GPIOC->MODER|=0xa000;
GPIOD->MODER|=0x80;
GPIOF->MODER|=0x200000;
GPIOG->MODER=0x2a0a000;
GPIOA->AFR[0]=0xe0ee000;
GPIOA->AFR[1]=0xee000;
GPIOB->AFR[0]=0x99;
//GPIOB->AFR[0]=0xee;
GPIOB->AFR[1]=0xeeee;
GPIOC->AFR[0]=0xee000000;
GPIOD->AFR[0]=0xe000;
GPIOF->AFR[1]|=0xe00;
GPIOG->AFR[0]=0xee000000;
GPIOG->AFR[1]=0x9e900;
//GPIOG->AFR[1]=0xeee00;
GPIOA->OSPEEDR=0xffffffff;
GPIOB->OSPEEDR=0xffffffff;
GPIOC->OSPEEDR=0xffffffff;
GPIOD->OSPEEDR=0xffffffff;
GPIOF->OSPEEDR=0xffffffff;
GPIOG->OSPEEDR=0xffffffff;
//PIN CONFIGURATION FOR LCD
LTDC->SSCR=((HSYNC-1)<<16)|(VSYNC-1); //Synchronization Size Configuration
LTDC->BPCR=((HBP-1)<<16)|(VBP-1); //Back Porch Configuration
LTDC->AWCR=(ACTIVE_W<<16)|(ACTIVE_H); //Active Width Configuration
LTDC->TWCR=(TOTAL_WIDTH<<16)|(TOTAL_HEIGHT); //Total Width Configuration
LTDC_Layer1->WHPCR=HBP|((HBP+LCD_WIDTH-1)<<16); //Window Horizontal Position Configuration
LTDC_Layer1->WVPCR=VBP|((VBP+LCD_HEIGHT-1)<<16); //Window Vertical Position Configuration
LTDC_Layer1->PFCR=2; //Pixel Format Configuration
LTDC_Layer1->CFBAR=0x10;
LTDC_Layer1->CFBLR=((LCD_WIDTH*10)<<16)|((LCD_WIDTH*10)+3);//Color Frame Buffer Length
LTDC_Layer1->CR=LTDC_LxCR_LEN; //Enable Layer
LTDC->SRCR=LTDC_SRCR_IMR; //Immediate Reload
//LTDC->GCR=LTDC_GCR_PCPOL; //active high pcpol /
LTDC->GCR|=LTDC_GCR_LTDCEN; //Enable LTDC /
while(1)LTDC->BCCR = 0xff; //display blue background;
while(1){
if(x>76799)x=0;
x++;
}
}
anyway thanks for you replied.
