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RGBLCD.cpp
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#include <Arduino.h>
#include "RGBLCD.h"
#include <User_Setup.h>
#ifdef HAL_LTDC_MODULE_ENABLED
void MX_LTDC_Init(const uint32_t addr);
void MX_DMA2D_Init();
void LCD_Draw_DMA2D_RG565(uint32_t LayerIndex, void *pDst, void *pSrc);
LCDClass::LCDClass(uint32_t addr)
{
DataBuffer = (volatile uint16_t *)addr;
/*current x_cur, y_cur*/
x_cur = 0;
y_cur = 0;
/*windows*/
x_start = 0;
x_end = TFT_WIDTH;
y_start = 0;
y_end = TFT_HEIGHT;
/*direction*/
rotation = ROTATION_UP;
}
LCDClass::~LCDClass()
{
}
void LCDClass::begin()
{
MX_LTDC_Init((uint32_t)DataBuffer);
MX_DMA2D_Init();
}
void LCDClass::command(uint8_t cmd)
{
index = 0;
switch (cmd)
{
case TFT_CASET:
state_cur = SET_WINDOW_X;
x_start = 0;
x_end = 0;
break;
case TFT_PASET:
state_cur = SET_WINDOW_Y;
y_start = 0;
y_end = 0;
break;
case TFT_RAMWR:
x_cur = x_start;
y_cur = y_start;
state_cur = DEFAULT_STATE;
break;
case TFT_SET_ROTATION:
state_cur = SET_ROTATION;
break;
default:
break;
}
}
void LCDClass::write(uint8_t data)
{
switch (state_cur)
{
case SET_WINDOW_X:
if (index < 2)
{
x_start |= data << ((1 - index) * 8);
}
else
{
x_end |= data << ((3 - index) * 8);
}
index++;
break;
case SET_WINDOW_Y:
if (index < 2)
{
y_start |= data << ((1 - index) * 8);
}
else
{
y_end |= data << ((3 - index) * 8);
}
index++;
break;
case SET_ROTATION:
switch (data)
{
case TFT_ROTATION_UP:
rotation = ROTATION_UP;
break;
case TFT_ROTATION_DOWN:
rotation = ROTATION_DOWN;
break;
case TFT_ROTATION_LEFT:
rotation = ROTATION_LEFT;
break;
case TFT_ROTATION_RIGHT:
rotation = ROTATION_RIGHT;
break;
default:
rotation = ROTATION_UP;
break;
}
break;
default:
break;
}
}
void LCDClass::write(uint16_t data)
{
switch (rotation)
{
case ROTATION_UP:
*(volatile uint16_t *)((uint32_t)DataBuffer + ((TFT_WIDTH * y_cur) + x_cur) * 2) = (uint16_t)(data);
break;
case ROTATION_LEFT:
*(volatile uint16_t *)((uint32_t)DataBuffer + ((TFT_WIDTH * x_cur) + TFT_WIDTH - y_cur - 1) * 2) = (uint16_t)(data);
break;
case ROTATION_RIGHT:
*(volatile uint16_t *)((uint32_t)DataBuffer + ((TFT_WIDTH * (TFT_HEIGHT - x_cur - 1)) + y_cur) * 2) = (uint16_t)(data);
break;
case ROTATION_DOWN:
*(volatile uint16_t *)((uint32_t)DataBuffer + ((TFT_WIDTH * (TFT_HEIGHT - y_cur - 1)) + TFT_WIDTH - x_cur - 1) * 2) = (uint16_t)(data);
break;
default:
break;
}
x_cur++;
if (x_cur > x_end)
{
x_cur = x_start;
y_cur++;
if (y_cur > y_end){
y_cur = y_start;
}
}
}
void LCDClass::write(void *buf, size_t count)
{
volatile uint16_t *temp = (uint16_t *)buf;
for (size_t i = 0; i < count/2; i++)
{
write(*temp++);
}
}
static inline void wait(uint32_t us)
{
for (int j = 0; j < 55; j++)
{
asm volatile("nop");
}
}
void SPI_WriteComm(uint8_t val)
{
digitalWrite(PA1, LOW); // CS
for (uint8_t bit = 0u; bit < 9u; bit++)
{
if (bit == 0)
{
digitalWrite(PH2, LOW);
}
else
{
digitalWrite(PH2, (val & (1 << (8 - bit))) ? HIGH : LOW);
}
wait(1);
digitalWrite(PH3, LOW);
wait(1);
digitalWrite(PH3, HIGH);
}
digitalWrite(PH2, LOW); // SDO
digitalWrite(PH3, LOW); // CLK
digitalWrite(PA1, HIGH); // CS
}
void SPI_WriteData(uint8_t val)
{
digitalWrite(PA1, LOW); // CS
for (uint8_t bit = 0u; bit < 9u; bit++)
{
if (bit == 0)
{
digitalWrite(PH2, HIGH);
}
else
{
digitalWrite(PH2, (val & (1 << (8 - bit))) ? HIGH : LOW);
}
wait(1);
digitalWrite(PH3, LOW);
wait(1);
digitalWrite(PH3, HIGH);
}
digitalWrite(PH2, LOW); // SDO
HAL_GPIO_WritePin(GPIOG, GPIO_PIN_7, GPIO_PIN_RESET); // CLK
HAL_GPIO_WritePin(GPIOA, GPIO_PIN_1, GPIO_PIN_SET); // CS
}
void ST7789V_Init()
{
pinMode(PH2, OUTPUT);
pinMode(PH3, OUTPUT);
pinMode(PA1, OUTPUT);
digitalWrite(PA1, HIGH); // CS
delay(1);
//----------------Star Initial Sequence-------//
SPI_WriteComm(0x11);
delay(120); //Delay 120ms
SPI_WriteComm(0xB0);
SPI_WriteData(0x11);
SPI_WriteData(0xf0); //RGB interface //00
SPI_WriteComm(0xB1);
SPI_WriteData(0x40); //40=RGB-DE-mode/60=RGB HV MODE
SPI_WriteData(0x02); //VBP //02
SPI_WriteData(0x14); //HBP //14
SPI_WriteComm(0xB2);
SPI_WriteData(0x0C);
SPI_WriteData(0x0C);
SPI_WriteData(0x00);
SPI_WriteData(0x33);
SPI_WriteData(0x33);
SPI_WriteComm(0xB7);
SPI_WriteData(0x35);
SPI_WriteComm(0xBB);
SPI_WriteData(0x28); //VCOM //28
SPI_WriteComm(0xC0);
SPI_WriteData(0x2C);
SPI_WriteComm(0xC2);
SPI_WriteData(0x01);
SPI_WriteComm(0xc3);
SPI_WriteData(0x0B); //GVDD/GVCL
//SPI_Write_index(0xc5);
//SPI_Write_data(0x28);//VCOM
SPI_WriteComm(0xC4);
SPI_WriteData(0x20);
SPI_WriteComm(0xC6);
SPI_WriteData(0x0F);
SPI_WriteComm(0xD0);
SPI_WriteData(0xA4);
SPI_WriteData(0xA1);
////////////////////////////////////GAMMA
SPI_WriteComm(0xE0);
SPI_WriteData(0xD0);
SPI_WriteData(0x01);
SPI_WriteData(0x08);
SPI_WriteData(0x0F);
SPI_WriteData(0x11);
SPI_WriteData(0x2A);
SPI_WriteData(0x36);
SPI_WriteData(0x55);
SPI_WriteData(0x44);
SPI_WriteData(0x3A);
SPI_WriteData(0x0B);
SPI_WriteData(0x06);
SPI_WriteData(0x11);
SPI_WriteData(0x20);
SPI_WriteComm(0xE1);
SPI_WriteData(0xD0);
SPI_WriteData(0x02);
SPI_WriteData(0x07);
SPI_WriteData(0x0A);
SPI_WriteData(0x0B);
SPI_WriteData(0x18);
SPI_WriteData(0x34);
SPI_WriteData(0x43);
SPI_WriteData(0x4A);
SPI_WriteData(0x2B);
SPI_WriteData(0x1B);
SPI_WriteData(0x1C);
SPI_WriteData(0x22);
SPI_WriteData(0x1F);
/////////////////////////////////////
SPI_WriteComm(0x3A);
SPI_WriteData(0x55); //16-Bit RGB/65k
SPI_WriteComm(0x36);
SPI_WriteData(0x00);
SPI_WriteComm(0x29); //display on
delay(50);
}
/* USER CODE END 0 */
LTDC_HandleTypeDef hltdc;
/* LTDC init function */
void MX_LTDC_Init(uint32_t addr)
{
/* USER CODE BEGIN LTDC_Init 0 */
/* USER CODE BEGIN LTDC_Init 0 */
pinMode(PG5, OUTPUT);
pinMode(PF5, OUTPUT);
delay(10);
digitalWrite(PG5, LOW); //reset operate
delay(10);
digitalWrite(PG5, HIGH);
delay(10);
digitalWrite(PF5, HIGH); //backlight enable
ST7789V_Init();
/* USER CODE END LTDC_Init 0 */
LTDC_LayerCfgTypeDef pLayerCfg = {0};
/* USER CODE BEGIN LTDC_Init 1 */
/* USER CODE END LTDC_Init 1 */
hltdc.Instance = LTDC;
hltdc.Init.HSPolarity = LTDC_HSPOLARITY_AL;
hltdc.Init.VSPolarity = LTDC_VSPOLARITY_AL;
hltdc.Init.DEPolarity = LTDC_DEPOLARITY_AL;
hltdc.Init.PCPolarity = LTDC_PCPOLARITY_IPC;
hltdc.Init.HorizontalSync = 9;
hltdc.Init.VerticalSync = 3;
hltdc.Init.AccumulatedHBP = 19;
hltdc.Init.AccumulatedVBP = 7;
hltdc.Init.AccumulatedActiveW = 259;
hltdc.Init.AccumulatedActiveH = 327;
hltdc.Init.TotalWidth = 297;
hltdc.Init.TotalHeigh = 335;
hltdc.Init.Backcolor.Blue = 0;
hltdc.Init.Backcolor.Green = 0;
hltdc.Init.Backcolor.Red = 0;
if (HAL_LTDC_Init(&hltdc) != HAL_OK)
{
Error_Handler();
}
pLayerCfg.WindowX0 = 0;
pLayerCfg.WindowX1 = 240;
pLayerCfg.WindowY0 = 0;
pLayerCfg.WindowY1 = 320;
pLayerCfg.PixelFormat = LTDC_PIXEL_FORMAT_RGB565;
pLayerCfg.Alpha = 255;
pLayerCfg.Alpha0 = 0;
pLayerCfg.BlendingFactor1 = LTDC_BLENDING_FACTOR1_PAxCA;
pLayerCfg.BlendingFactor2 = LTDC_BLENDING_FACTOR2_PAxCA;
pLayerCfg.FBStartAdress = addr;
pLayerCfg.ImageWidth = 240;
pLayerCfg.ImageHeight = 320;
pLayerCfg.Backcolor.Blue = 0;
pLayerCfg.Backcolor.Green = 0;
pLayerCfg.Backcolor.Red = 0;
if (HAL_LTDC_ConfigLayer(&hltdc, &pLayerCfg, 0) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN LTDC_Init 2 */
/* USER CODE END LTDC_Init 2 */
}
void HAL_LTDC_MspInit(LTDC_HandleTypeDef *ltdcHandle)
{
GPIO_InitTypeDef GPIO_InitStruct = {0};
RCC_PeriphCLKInitTypeDef PeriphClkInitStruct = {0};
if (ltdcHandle->Instance == LTDC)
{
/* USER CODE BEGIN LTDC_MspInit 0 */
/* USER CODE END LTDC_MspInit 0 */
/** Initializes the peripherals clock
*/
PeriphClkInitStruct.PeriphClockSelection = RCC_PERIPHCLK_LTDC;
PeriphClkInitStruct.PLL3.PLL3M = 5;
PeriphClkInitStruct.PLL3.PLL3N = 48;
PeriphClkInitStruct.PLL3.PLL3P = 2;
PeriphClkInitStruct.PLL3.PLL3Q = 5;
PeriphClkInitStruct.PLL3.PLL3R = 40;
PeriphClkInitStruct.PLL3.PLL3RGE = RCC_PLL3VCIRANGE_2;
PeriphClkInitStruct.PLL3.PLL3VCOSEL = RCC_PLL3VCOWIDE;
PeriphClkInitStruct.PLL3.PLL3FRACN = 0;
if (HAL_RCCEx_PeriphCLKConfig(&PeriphClkInitStruct) != HAL_OK)
{
Error_Handler();
}
/* LTDC clock enable */
__HAL_RCC_LTDC_CLK_ENABLE();
__HAL_RCC_GPIOB_CLK_ENABLE();
__HAL_RCC_GPIOH_CLK_ENABLE();
__HAL_RCC_GPIOA_CLK_ENABLE();
__HAL_RCC_GPIOC_CLK_ENABLE();
__HAL_RCC_GPIOG_CLK_ENABLE();
__HAL_RCC_GPIOD_CLK_ENABLE();
__HAL_RCC_GPIOE_CLK_ENABLE();
/**LTDC GPIO Configuration
PB8 ------> LTDC_B6
PH13 ------> LTDC_G2
PB9 ------> LTDC_B7
PA15(JTDI) ------> LTDC_R3
PA8 ------> LTDC_R6
PC6 ------> LTDC_HSYNC
PC7 ------> LTDC_G6
PG7 ------> LTDC_CLK
PA7 ------> LTDC_VSYNC
PD10 ------> LTDC_B3
PA5 ------> LTDC_R4
PE12 ------> LTDC_B4
PB10 ------> LTDC_G4
PH11 ------> LTDC_R5
PB11 ------> LTDC_G5
PB15 ------> LTDC_G7
PA3 ------> LTDC_B5
PC5 ------> LTDC_DE
PE11 ------> LTDC_G3
PE15 ------> LTDC_R7
*/
GPIO_InitStruct.Pin = GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_15;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOB, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_13 | GPIO_PIN_11;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOH, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_15;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF9_LTDC;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_8 | GPIO_PIN_7 | GPIO_PIN_5 | GPIO_PIN_3;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOA, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_6 | GPIO_PIN_7 | GPIO_PIN_5;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOC, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_7;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOG, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_10;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOD, &GPIO_InitStruct);
GPIO_InitStruct.Pin = GPIO_PIN_12 | GPIO_PIN_11 | GPIO_PIN_15;
GPIO_InitStruct.Mode = GPIO_MODE_AF_PP;
GPIO_InitStruct.Pull = GPIO_NOPULL;
GPIO_InitStruct.Speed = GPIO_SPEED_FREQ_LOW;
GPIO_InitStruct.Alternate = GPIO_AF14_LTDC;
HAL_GPIO_Init(GPIOE, &GPIO_InitStruct);
/* LTDC interrupt Init */
HAL_NVIC_SetPriority(LTDC_IRQn, 0, 0);
HAL_NVIC_EnableIRQ(LTDC_IRQn);
/* USER CODE BEGIN LTDC_MspInit 1 */
/* USER CODE END LTDC_MspInit 1 */
}
}
void HAL_LTDC_MspDeInit(LTDC_HandleTypeDef *ltdcHandle)
{
if (ltdcHandle->Instance == LTDC)
{
/* USER CODE BEGIN LTDC_MspDeInit 0 */
/* USER CODE END LTDC_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_LTDC_CLK_DISABLE();
/**LTDC GPIO Configuration
PB8 ------> LTDC_B6
PH13 ------> LTDC_G2
PB9 ------> LTDC_B7
PA15(JTDI) ------> LTDC_R3
PA8 ------> LTDC_R6
PC6 ------> LTDC_HSYNC
PC7 ------> LTDC_G6
PG7 ------> LTDC_CLK
PA7 ------> LTDC_VSYNC
PD10 ------> LTDC_B3
PA5 ------> LTDC_R4
PE12 ------> LTDC_B4
PB10 ------> LTDC_G4
PH11 ------> LTDC_R5
PB11 ------> LTDC_G5
PB15 ------> LTDC_G7
PA3 ------> LTDC_B5
PC5 ------> LTDC_DE
PE11 ------> LTDC_G3
PE15 ------> LTDC_R7
*/
HAL_GPIO_DeInit(GPIOB, GPIO_PIN_8 | GPIO_PIN_9 | GPIO_PIN_10 | GPIO_PIN_11 | GPIO_PIN_15);
HAL_GPIO_DeInit(GPIOH, GPIO_PIN_13 | GPIO_PIN_11);
HAL_GPIO_DeInit(GPIOA, GPIO_PIN_15 | GPIO_PIN_8 | GPIO_PIN_7 | GPIO_PIN_5 | GPIO_PIN_3);
HAL_GPIO_DeInit(GPIOC, GPIO_PIN_6 | GPIO_PIN_7 | GPIO_PIN_5);
HAL_GPIO_DeInit(GPIOG, GPIO_PIN_7);
HAL_GPIO_DeInit(GPIOD, GPIO_PIN_10);
HAL_GPIO_DeInit(GPIOE, GPIO_PIN_12 | GPIO_PIN_11 | GPIO_PIN_15);
/* LTDC interrupt Deinit */
HAL_NVIC_DisableIRQ(LTDC_IRQn);
/* USER CODE BEGIN LTDC_MspDeInit 1 */
/* USER CODE END LTDC_MspDeInit 1 */
}
}
DMA2D_HandleTypeDef hdma2d;
/* DMA2D init function */
void MX_DMA2D_Init(void)
{
/* USER CODE BEGIN DMA2D_Init 0 */
/* USER CODE END DMA2D_Init 0 */
/* USER CODE BEGIN DMA2D_Init 1 */
/* USER CODE END DMA2D_Init 1 */
hdma2d.Instance = DMA2D;
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_RGB565;
hdma2d.Init.OutputOffset = 0;
hdma2d.LayerCfg[1].InputOffset = 0;
hdma2d.LayerCfg[1].InputColorMode = DMA2D_INPUT_RGB565;
hdma2d.LayerCfg[1].AlphaMode = DMA2D_NO_MODIF_ALPHA;
hdma2d.LayerCfg[1].InputAlpha = 0;
hdma2d.LayerCfg[1].AlphaInverted = DMA2D_REGULAR_ALPHA;
hdma2d.LayerCfg[1].RedBlueSwap = DMA2D_RB_REGULAR;
hdma2d.LayerCfg[1].ChromaSubSampling = DMA2D_NO_CSS;
if (HAL_DMA2D_Init(&hdma2d) != HAL_OK)
{
Error_Handler();
}
if (HAL_DMA2D_ConfigLayer(&hdma2d, 1) != HAL_OK)
{
Error_Handler();
}
/* USER CODE BEGIN DMA2D_Init 2 */
/* USER CODE END DMA2D_Init 2 */
}
void HAL_DMA2D_MspInit(DMA2D_HandleTypeDef* dma2dHandle)
{
if(dma2dHandle->Instance==DMA2D)
{
/* USER CODE BEGIN DMA2D_MspInit 0 */
/* USER CODE END DMA2D_MspInit 0 */
/* DMA2D clock enable */
__HAL_RCC_DMA2D_CLK_ENABLE();
/* USER CODE BEGIN DMA2D_MspInit 1 */
/* USER CODE END DMA2D_MspInit 1 */
}
}
void HAL_DMA2D_MspDeInit(DMA2D_HandleTypeDef* dma2dHandle)
{
if(dma2dHandle->Instance==DMA2D)
{
/* USER CODE BEGIN DMA2D_MspDeInit 0 */
/* USER CODE END DMA2D_MspDeInit 0 */
/* Peripheral clock disable */
__HAL_RCC_DMA2D_CLK_DISABLE();
/* USER CODE BEGIN DMA2D_MspDeInit 1 */
/* USER CODE END DMA2D_MspDeInit 1 */
}
}
void LCD_Draw_DMA2D_RG565(uint32_t LayerIndex, void *pDst, void *pSrc)
{
hdma2d.Init.Mode = DMA2D_M2M;
hdma2d.Init.ColorMode = DMA2D_OUTPUT_RGB565;
hdma2d.Init.OutputOffset = 0;
hdma2d.Instance = DMA2D;
if (HAL_DMA2D_Init(&hdma2d) == HAL_OK)
{
if (HAL_DMA2D_ConfigLayer(&hdma2d, LayerIndex) == HAL_OK)
{
if (HAL_DMA2D_Start(&hdma2d, (uint32_t)pSrc, (uint32_t) pDst, TFT_WIDTH,TFT_HEIGHT) == HAL_OK)
{
HAL_DMA2D_PollForTransfer(&hdma2d, 1);
}
}
}
}
#endif