Controlling ILI9341 LCD with STMF0 - c

Question

I am trying to control a ILI9341 LCD screen with a STM32F072RB Nucleo board using the parallel intel 8080 interface, but the only thing I accomplished is lighting the screen fully white when the LED power is applied.
I tried different ways of implementing the control, here is the last one (I based on the adafruit library for stm32uino, basically tried to port it https://github.com/stevstrong/Adafruit_TFTLCD_8bit_STM32/blob/master/examples/graphicstest/graphicstest.ino).
But as I said, nothing is happening. Here's the code (i deleted most of the CUBEMX comments so it's more readable):
#include "main.h"
int DISPLAY_ON = 41;
int PIXEL_FORMAT_CHANGE_COMMAND = 58;
int PIXEL_FORMAT_SIX_BIT = 230;
int SET_COLUMN_COMMAND = 42;
int SET_PAGE_COMMAND = 43;
int MEMORY_WRITE_COMMAND = 44;
int DCX_HIGH = 1;
int DCX_LOW = 0;
void SystemClock_Config(void);
static void MX_GPIO_Init(void);
void setDataBus(int);
void setColorScreen(void);
void setColumn(int, int);
void setPage(int, int);
void setColorDepth(void);
void resetLCD(void);
void displayOn(void);
void setPixel(int, int, int, int, int);
void sendWrite(int, int);
int main(void)
{
HAL_Init();
SystemClock_Config();
sendWrite(DCX_LOW, 1); // reset
HAL_Delay(150);
sendWrite(DCX_LOW, 40); // display off
sendWrite(DCX_LOW, 58); // pixel format
sendWrite(DCX_HIGH, 230); // pixel format data
sendWrite(DCX_LOW, 17); // sleep out
HAL_Delay(150);
sendWrite(DCX_LOW, 41); // display on
sendWrite(DCX_LOW, 54); // memory access control
sendWrite(DCX_HIGH,74);
MX_GPIO_Init();
setColorScreen();
while (1)
{
}
}
void SystemClock_Config(void)
{
RCC_OscInitTypeDef RCC_OscInitStruct = {0};
RCC_ClkInitTypeDef RCC_ClkInitStruct = {0};
/**Initializes the CPU, AHB and APB busses clocks
*/
RCC_OscInitStruct.OscillatorType = RCC_OSCILLATORTYPE_HSI48;
RCC_OscInitStruct.HSI48State = RCC_HSI48_ON;
RCC_OscInitStruct.PLL.PLLState = RCC_PLL_NONE;
if (HAL_RCC_OscConfig(&RCC_OscInitStruct) != HAL_OK)
{
Error_Handler();
}
/**Initializes the CPU, AHB and APB busses clocks
*/
RCC_ClkInitStruct.ClockType = RCC_CLOCKTYPE_HCLK|RCC_CLOCKTYPE_SYSCLK
|RCC_CLOCKTYPE_PCLK1;
RCC_ClkInitStruct.SYSCLKSource = RCC_SYSCLKSOURCE_HSI48;
RCC_ClkInitStruct.AHBCLKDivider = RCC_SYSCLK_DIV1;
RCC_ClkInitStruct.APB1CLKDivider = RCC_HCLK_DIV1;
if (HAL_RCC_ClockConfig(&RCC_ClkInitStruct, FLASH_LATENCY_1) != HAL_OK)
{
Error_Handler();
}
}
static void MX_GPIO_Init(void)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
/* GPIO Ports Clock Enable */
__HAL_RCC_GPIOF_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_3|GPIO_PIN_5|GPIO_PIN_8, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOB, GPIO_PIN_0|GPIO_PIN_10|GPIO_PIN_12|GPIO_PIN_13
|GPIO_PIN_14|GPIO_PIN_15, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOC, GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10, GPIO_PIN_RESET);
/*Configure GPIO pin Output Level */
HAL_GPIO_WritePin(GPIOD, GPIO_PIN_2, GPIO_PIN_RESET);
/*Configure GPIO pins : PA3 PA5 PA8 */
GPIO_InitStruct.Pin = GPIO_PIN_3|GPIO_PIN_5|GPIO_PIN_8;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
/*Configure GPIO pins : PB0 PB10 PB12 PB13
PB14 PB15 */
GPIO_InitStruct.Pin = GPIO_PIN_0|GPIO_PIN_10|GPIO_PIN_12|GPIO_PIN_13
|GPIO_PIN_14|GPIO_PIN_15;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
/*Configure GPIO pins : PC8 PC9 PC10 */
GPIO_InitStruct.Pin = GPIO_PIN_8|GPIO_PIN_9|GPIO_PIN_10;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
/*Configure GPIO pin : PD2 */
GPIO_InitStruct.Pin = GPIO_PIN_2;
GPIO_InitStruct.Mode = GPIO_MODE_OUTPUT_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
}
/* USER CODE BEGIN 4 */
void setColorScreen(void){
setColumn(0, 159);
setPage(0, 127);
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_3, GPIO_PIN_RESET); // csx low
HAL_Delay(1);
sendWrite(DCX_LOW, 44);
for(int i=0; i<128*160*3; i++)
{
sendWrite(DCX_HIGH, 125);
}
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_3, GPIO_PIN_SET); // csx low
HAL_Delay(1);
}
void setColumn(int startColumn, int endColumn)
{
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_3, GPIO_PIN_RESET); // csx low
HAL_Delay(1);
sendWrite(DCX_LOW, SET_COLUMN_COMMAND);
sendWrite(DCX_HIGH, 0);
sendWrite(DCX_HIGH, startColumn);
sendWrite(DCX_HIGH, 0);
sendWrite(DCX_HIGH, endColumn);
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_3, GPIO_PIN_SET); // csx high
HAL_Delay(1);
}
void setPage(int startPage, int endPage)
{
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_3, GPIO_PIN_RESET); // csx low
HAL_Delay(1);
sendWrite(DCX_LOW, SET_PAGE_COMMAND);
sendWrite(DCX_HIGH, 0);
sendWrite(DCX_HIGH, startPage);
sendWrite(DCX_HIGH, 0);
sendWrite(DCX_HIGH, endPage);
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_3, GPIO_PIN_SET); // csx high
HAL_Delay(1);
}
void setDataBus(int number)
{
GPIO_TypeDef *dbPort[] = {GPIOC, GPIOC , GPIOD, GPIOB, GPIOB, GPIOB, GPIOB, GPIOB};
uint16_t dbNumber[] = {GPIO_PIN_8, GPIO_PIN_10, GPIO_PIN_2, GPIO_PIN_15, GPIO_PIN_14, GPIO_PIN_13, GPIO_PIN_12, GPIO_PIN_10};
int shifted;
for(int i = 7; i>= 0; i--)
{
shifted = number >> i;
if(shifted & 1)
{
HAL_GPIO_WritePin(dbPort[i%8], dbNumber[i%8], GPIO_PIN_SET);
} else
{
HAL_GPIO_WritePin(dbPort[i%8], dbNumber[i%8], GPIO_PIN_RESET);
}
}
}
void sendWrite(int dcx, int data)
{
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_5, (dcx == 1) ? GPIO_PIN_SET : GPIO_PIN_RESET); // d/cx set
HAL_Delay(1);
setDataBus(data);
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_8, GPIO_PIN_RESET); // wrx low
HAL_Delay(1);
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_8, GPIO_PIN_SET); // wrx high
HAL_Delay(1);
}
void Error_Handler(void)
{
}
#ifdef USE_FULL_ASSERT
void assert_failed(char *file, uint32_t line)
{
}
#endif /* USE_FULL_ASSERT */