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/**
******************************************************************************
* @file Examples_LL/DMA2D/DMA2D_MemoryToMemory/Src/main.c
* @author MCD Application Team
* @brief This example provides a description of how to configure
* DMA2D peripheral in Memory to Memory transfer mode
* using the STM32F4xx DMA2D LL API.
* Peripheral initialization done using LL unitary services functions.
******************************************************************************
* @attention
*
* Copyright (c) 2017 STMicroelectronics.
* All rights reserved.
*
* This software is licensed under terms that can be found in the LICENSE file
* in the root directory of this software component.
* If no LICENSE file comes with this software, it is provided AS-IS.
*
******************************************************************************
*/
/* Includes ------------------------------------------------------------------*/
#include "main.h"
/** @addtogroup STM32F4xx_LL_Examples
* @{
*/
/** @addtogroup DMA2D_MemoryToMemory
* @{
*/
/* Private typedef -----------------------------------------------------------*/
/* Private define ------------------------------------------------------------*/
uint32_t aBufferResult[(LAYER_SIZE_X * LAYER_SIZE_Y * LAYER_NB_BYTES_PER_PIXEL) / 4];
/* ARGB4444 input buffer 16bpp */
uint32_t aBufferInput[(LAYER_SIZE_X * LAYER_SIZE_Y * LAYER_NB_BYTES_PER_PIXEL) / 4] =
{0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203,
0xEFFFFFF2, 0xAB1FFFF0, 0x0504044E, 0x89ADCDEF, 0x15248722, 0x5201245E, 0x01025FDE, 0xFE010203};
/* Private macro -------------------------------------------------------------*/
/* Private variables ---------------------------------------------------------*/
/* Private function prototypes -----------------------------------------------*/
void SystemClock_Config(void);
void Configure_DMA2D(void);
void CheckDMA2DTransfer(uint32_t* pBuffer1, uint32_t* pBuffer2, uint32_t BufferLength);
void LED_Init(void);
void LED_On(void);
void LED_Blinking(uint32_t Period);
/* Private functions ---------------------------------------------------------*/
/**
* @brief Main program
* @param None
* @retval None
*/
int main(void)
{
/* Configure the system clock to 180 MHz */
SystemClock_Config();
/* Initialize LED1 */
LED_Init();
/* Configure DMA2D (DMA2D Mode, Output Color Mode and output offset) */
Configure_DMA2D();
/* Set input (foreground) memory address */
LL_DMA2D_FGND_SetMemAddr(DMA2D, (uint32_t)&aBufferInput);
/* Set output memory address */
LL_DMA2D_SetOutputMemAddr(DMA2D, (uint32_t)&aBufferResult);
/* Set number of lines and number of pixels per line */
LL_DMA2D_SetNbrOfLines(DMA2D, LAYER_SIZE_Y);
LL_DMA2D_SetNbrOfPixelsPerLines(DMA2D, LAYER_SIZE_X);
/* Start transfer */
LL_DMA2D_Start(DMA2D);
/* Wait until transfer is over */
while (LL_DMA2D_IsTransferOngoing(DMA2D));
/* Check whether or not DMA2D transfer is successful */
CheckDMA2DTransfer(aBufferInput,
aBufferResult,
((LAYER_SIZE_X * LAYER_SIZE_Y * LAYER_NB_BYTES_PER_PIXEL) / 4));
/* Infinite loop */
while (1)
{
}
}
/**
* @brief This function configures DMA2D Instance.
* @note This function is used to :
* -1- Enable peripheral clock for DMA2D.
* -2- Configure DMA2D functional parameters.
* @note Peripheral configuration is minimal configuration from reset values.
* Thus, some useless LL unitary functions calls below are provided as
* commented examples - setting is default configuration from reset.
* @param None
* @retval None
*/
void Configure_DMA2D(void)
{
/* (1) Enable peripheral clock for DMA2D *********************/
LL_AHB1_GRP1_EnableClock(LL_AHB1_GRP1_PERIPH_DMA2D);
/* (2) Configure DMA2D output parameters ***********************************/
/* Configure DMA2D output color mode */
LL_DMA2D_SetOutputColorMode(DMA2D, LL_DMA2D_OUTPUT_MODE_ARGB4444);
/* Initialize default DMA2D mode */
/* Reset value is LL_DMA2D_MODE_M2M */
// LL_DMA2D_SetMode(DMA2D, LL_DMA2D_MODE_M2M);
/* Initialize default Red and Blue swap */
/* Reset value is LL_DMA2D_RB_MODE_REGULAR */
// LL_DMA2D_SetOutputRBSwapMode(DMA2D, LL_DMA2D_RB_MODE_REGULAR);
/* Initialize default alpha inversion */
/* Reset value is LL_DMA2D_ALPHA_REGULAR */
// LL_DMA2D_SetOutputAlphaInvMode(DMA2D, LL_DMA2D_ALPHA_REGULAR);
/* Initialize default output line offset */
/* Reset value is 0x0 */
// LL_DMA2D_SetLineOffset(DMA2D, 0x0);
/* (3) Configure DMA2D input (foreground layer) parameters *****************/
/* Configure Foreground layer input color mode and alpha value */
LL_DMA2D_FGND_SetColorMode(DMA2D, LL_DMA2D_INPUT_MODE_ARGB4444);
LL_DMA2D_FGND_SetAlpha(DMA2D, 0xFF); /* Fully opaque */
/* Initialize default DMA2D input alpha mode */
/* Reset value is LL_DMA2D_ALPHA_MODE_NO_MODIF */
// LL_DMA2D_FGND_SetAlphaMode(DMA2D, LL_DMA2D_ALPHA_MODE_NO_MODIF);
/* Initialize default input Red and Blue swap */
/* Reset value is LL_DMA2D_RB_MODE_REGULAR */
// LL_DMA2D_FGND_SetRBSwapMode(DMA2D, LL_DMA2D_RB_MODE_REGULAR);
/* Initialize default alpha inversion */
/* Reset value is LL_DMA2D_ALPHA_REGULAR */
// LL_DMA2D_FGND_SetAlphaInvMode(DMA2D, LL_DMA2D_ALPHA_REGULAR);
/* Initialize default input line offset */
/* Reset value is 0x0 */
// LL_DMA2D_FGND_SetLineOffset(DMA2D, 0x0);
}
/**
* @brief Compares input and output buffers.
* @param pBuffer1, pBuffer2: buffers to be compared.
* @param BufferLength: buffer's length.
* @retval None
*/
void CheckDMA2DTransfer(uint32_t* pBuffer1, uint32_t* pBuffer2, uint32_t BufferLength)
{
while (BufferLength--)
{
if (*pBuffer1 != *pBuffer2)
{
/* Transfer error */
LED_Blinking(LED_BLINK_ERROR);
}
pBuffer1++;
pBuffer2++;
}
/* No error detected, turn on LED */
LED_On();
return;
}
/**
* @brief Initialize LED1 .
* @param None
* @retval None
*/
void LED_Init(void)
{
/* Enable the LED1 Clock */
LED1_GPIO_CLK_ENABLE();
/* Configure IO in output push-pull mode to drive external LED1 */
LL_GPIO_SetPinMode(LED1_GPIO_PORT, LED1_PIN, LL_GPIO_MODE_OUTPUT);
}
/**
* @brief Turn-on LED1 .
* @param None
* @retval None
*/
void LED_On(void)
{
/* Turn LED1 on */
LL_GPIO_SetOutputPin(LED1_GPIO_PORT, LED1_PIN);
}
/**
* @brief Set LED1 to Blinking mode for an infinite loop (toggle period based on value provided as input parameter).
* @param Period : Period of time (in ms) between each toggling of LED
* This parameter can be user defined values. Pre-defined values used in that example are :
* @arg LED_BLINK_FAST : Fast Blinking
* @arg LED_BLINK_SLOW : Slow Blinking
* @arg LED_BLINK_ERROR : Error specific Blinking
* @retval None
*/
void LED_Blinking(uint32_t Period)
{
/* Toggle IO in an infinite loop */
while (1)
{
LL_GPIO_TogglePin(LED1_GPIO_PORT, LED1_PIN);
LL_mDelay(Period);
}
}
/**
* @brief System Clock Configuration
* The system Clock is configured as follow :
* System Clock source = PLL (HSE)
* SYSCLK(Hz) = 180000000
* HCLK(Hz) = 180000000
* AHB Prescaler = 1
* APB1 Prescaler = 4
* APB2 Prescaler = 2
* HSE Frequency(Hz) = 8000000
* PLL_M = 8
* PLL_N = 360
* PLL_P = 2
* VDD(V) = 3.3
* Main regulator output voltage = Scale1 mode
* Flash Latency(WS) = 5
* @param None
* @retval None
*/
void SystemClock_Config(void)
{
/* Enable HSE oscillator */
LL_RCC_HSE_EnableBypass();
LL_RCC_HSE_Enable();
while(LL_RCC_HSE_IsReady() != 1)
{
};
/* Set FLASH latency */
LL_FLASH_SetLatency(LL_FLASH_LATENCY_5);
/* Enable PWR clock */
LL_APB1_GRP1_EnableClock(LL_APB1_GRP1_PERIPH_PWR);
/* Activation OverDrive Mode */
LL_PWR_EnableOverDriveMode();
while(LL_PWR_IsActiveFlag_OD() != 1)
{
};
/* Activation OverDrive Switching */
LL_PWR_EnableOverDriveSwitching();
while(LL_PWR_IsActiveFlag_ODSW() != 1)
{
};
/* Main PLL configuration and activation */
LL_RCC_PLL_ConfigDomain_SYS(LL_RCC_PLLSOURCE_HSE, LL_RCC_PLLM_DIV_8, 360, LL_RCC_PLLP_DIV_2);
LL_RCC_PLL_Enable();
while(LL_RCC_PLL_IsReady() != 1)
{
};
/* Sysclk activation on the main PLL */
LL_RCC_SetAHBPrescaler(LL_RCC_SYSCLK_DIV_1);
LL_RCC_SetSysClkSource(LL_RCC_SYS_CLKSOURCE_PLL);
while(LL_RCC_GetSysClkSource() != LL_RCC_SYS_CLKSOURCE_STATUS_PLL)
{
};
/* Set APB1 & APB2 prescaler */
LL_RCC_SetAPB1Prescaler(LL_RCC_APB1_DIV_4);
LL_RCC_SetAPB2Prescaler(LL_RCC_APB2_DIV_2);
/* Set systick to 1ms */
SysTick_Config(180000000 / 1000);
/* Update CMSIS variable (which can be updated also through SystemCoreClockUpdate function) */
SystemCoreClock = 180000000;
}
#ifdef USE_FULL_ASSERT
/**
* @brief Reports the name of the source file and the source line number
* where the assert_param error has occurred.
* @param file: pointer to the source file name
* @param line: assert_param error line source number
* @retval None
*/
void assert_failed(uint8_t *file, uint32_t line)
{
/* User can add his own implementation to report the file name and line number,
ex: printf("Wrong parameters value: file %s on line %d", file, line) */
/* Infinite loop */
while (1)
{
}
}
#endif
/**
* @}
*/
/**
* @}
*/