/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
files (startup_stm32f429_439xx.s) before to branch to application main.
*/
/* Configure DMA2D : Configure foreground and background */
DMA2D_Config();
/* Start Transfer */
DMA2D_StartTransfer();
/* Wait for TC Flag activation */
while(DMA2D_GetFlagStatus(DMA2D_FLAG_TC) == RESET)
{
}
/* Configure LCD */
LCD_Config();
/* LCD Display */
LCD_DisplayOn();
while (1)
{
}
}
/**
* @brief Está rotina é chamada para imprimir um retângulo preenchido
* @param Posição X, Posição Y, largura, altura , cor
* @retval Nenhum
*/
void LCD_DrawFullRect(uint16_t Xpos, uint16_t Ypos, uint16_t Width, uint16_t Height, uint16_t color)
{
DMA2D_InitTypeDef DMA2D_InitStruct;
uint32_t Xaddress = 0;
uint16_t Red_Value = 0, Green_Value = 0, Blue_Value = 0;
Red_Value = (0xF800 & color) >> 11;
Blue_Value = 0x001F & color;
Green_Value = (0x07E0 & color) >> 5;
Xaddress = CurrentFrameBuffer + 2*(LCD_MAXX*Ypos + Xpos);
/* configure DMA2D */
DMA2D_DeInit();
DMA2D_InitStruct.DMA2D_Mode = DMA2D_R2M;
DMA2D_InitStruct.DMA2D_CMode = DMA2D_RGB565;
DMA2D_InitStruct.DMA2D_OutputGreen = Green_Value;
DMA2D_InitStruct.DMA2D_OutputBlue = Blue_Value;
DMA2D_InitStruct.DMA2D_OutputRed = Red_Value;
DMA2D_InitStruct.DMA2D_OutputAlpha = 0x0F;
DMA2D_InitStruct.DMA2D_OutputMemoryAdd = Xaddress;
DMA2D_InitStruct.DMA2D_OutputOffset = (LCD_MAXX - Width);
DMA2D_InitStruct.DMA2D_NumberOfLine = Height;
DMA2D_InitStruct.DMA2D_PixelPerLine = Width;
DMA2D_Init(&DMA2D_InitStruct);
/* Start Transfer */
DMA2D_StartTransfer();
/* Wait for CTC Flag activation */
while(DMA2D_GetFlagStatus(DMA2D_FLAG_TC) == RESET)
{
}
}
//--------------------------------------------------------------
void LCD_DrawLine(uint16_t Xpos, uint16_t Ypos, uint16_t Length, uint8_t Direction, uint16_t color)
{
DMA2D_InitTypeDef DMA2D_InitStruct;
uint32_t Xaddress = 0;
uint16_t Red_Value = 0, Green_Value = 0, Blue_Value = 0;
Xaddress = CurrentFrameBuffer + 2*(LCD_MAXX*Ypos + Xpos);
Red_Value = (0xF800 & color) >> 11;
Blue_Value = 0x001F & color;
Green_Value = (0x07E0 & color) >> 5;
/* Configure DMA2D */
DMA2D_DeInit();
DMA2D_InitStruct.DMA2D_Mode = DMA2D_R2M;
DMA2D_InitStruct.DMA2D_CMode = DMA2D_RGB565;
DMA2D_InitStruct.DMA2D_OutputGreen = Green_Value;
DMA2D_InitStruct.DMA2D_OutputBlue = Blue_Value;
DMA2D_InitStruct.DMA2D_OutputRed = Red_Value;
DMA2D_InitStruct.DMA2D_OutputAlpha = 0x0F;
DMA2D_InitStruct.DMA2D_OutputMemoryAdd = Xaddress;
if(Direction == LCD_DIR_HORIZONTAL)
{
DMA2D_InitStruct.DMA2D_OutputOffset = 0;
DMA2D_InitStruct.DMA2D_NumberOfLine = 1;
DMA2D_InitStruct.DMA2D_PixelPerLine = Length;
}
else
{
DMA2D_InitStruct.DMA2D_OutputOffset = LCD_MAXX - 1;
DMA2D_InitStruct.DMA2D_NumberOfLine = Length;
DMA2D_InitStruct.DMA2D_PixelPerLine = 1;
}
DMA2D_Init(&DMA2D_InitStruct);
/* Start Transfer */
DMA2D_StartTransfer();
/* Wait for CTC Flag activation */
while(DMA2D_GetFlagStatus(DMA2D_FLAG_TC) == RESET)
{
}
}
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/*!< At this stage the microcontroller clock setting is already configured,
this is done through SystemInit() function which is called from startup
files (startup_stm32f429_439xx.s) before to branch to application main.
*/
/* Example description.
------------------------------------------
This example provides a description of how to configure DMA2D periph in
Memory_to_Memory with pixel format conversion transfer mode and display the
result on LCD.
In this case two images will be displayed on the LCD, original image before
the pixel format conversion and the transferred data after pixel format conversion
In this example the pixel format conversion is done from ARGB8888 to ARGB4444
and you can see on LCD the difference between the two images
*/
/* DMA2D configuration */
DMA2D_Config();
/* Start Transfer */
DMA2D_StartTransfer();
/* Wait for CTC Flag activation */
while(DMA2D_GetFlagStatus(DMA2D_FLAG_TC) == RESET)
{
}
/* Configure LCD */
LCD_Config();
/* LCD Display */
LCD_DisplayOn();
while (1)
{
}
}
static void DMA2D_CopySTLogo(uint32_t lineOffset)
{
DMA2D_InitTypeDef DMA2D_InitStruct;
DMA2D_FG_InitTypeDef DMA2D_FG_InitStruct;
DMA2D_BG_InitTypeDef DMA2D_BG_InitStruct;
/* Enable the DMA2D Clock */
RCC_AHB1PeriphClockCmd(RCC_AHB1Periph_DMA2D, ENABLE);
/* Transfer mode => Memory to memory with pixel format conversion*/
DMA2D_InitStruct.DMA2D_Mode = DMA2D_M2M_PFC;
/* Output color mode */
DMA2D_InitStruct.DMA2D_CMode = DMA2D_RGB565;
/* Output Address at SRAM memory */
DMA2D_InitStruct.DMA2D_OutputMemoryAdd = (uint32_t)(LCD_FRAME_BUFFER + BUFFER_OFFSET + lineOffset);
/* Initialize the alpha and RGB values */
DMA2D_InitStruct.DMA2D_OutputGreen = 0;
DMA2D_InitStruct.DMA2D_OutputBlue = 0;
DMA2D_InitStruct.DMA2D_OutputRed = 0;
DMA2D_InitStruct.DMA2D_OutputAlpha = 0;
/* Initialize the output offset */
DMA2D_InitStruct.DMA2D_OutputOffset = 0;
/* Number of lines : height */
DMA2D_InitStruct.DMA2D_NumberOfLine = ImageSTLogo_height;
/* Number of pixel per line : width */
DMA2D_InitStruct.DMA2D_PixelPerLine = ImageSTLogo_width;
/* Initialize DMA2D */
DMA2D_Init(&DMA2D_InitStruct);
/* Configure default values for foreground */
DMA2D_FG_StructInit(&DMA2D_FG_InitStruct);
/* Input Address at flash memory */
DMA2D_FG_InitStruct.DMA2D_FGMA = (uint32_t)ImageSTLogo;
DMA2D_FG_InitStruct.DMA2D_FGPFC_ALPHA_VALUE = 100;
/* Input color mode */
DMA2D_FG_InitStruct.DMA2D_FGCM = CM_RGB565;
/* Initialize foreground */
DMA2D_FGConfig(&DMA2D_FG_InitStruct);
/* Configure default values for background */
DMA2D_BG_StructInit(&DMA2D_BG_InitStruct);
/* Input Address at flash memory */
DMA2D_BG_InitStruct.DMA2D_BGMA = (uint32_t)frameBuffer;
DMA2D_BG_InitStruct.DMA2D_BGPFC_ALPHA_VALUE = 100;
/* Input color mode */
DMA2D_BG_InitStruct.DMA2D_BGCM = CM_RGB565;
/* Initialize background */
DMA2D_BGConfig(&DMA2D_BG_InitStruct);
/* Start Transfer */
DMA2D_StartTransfer();
while (!DMA2D_GetFlagStatus(DMA2D_FLAG_TC))
{
}
}
