STM32F4xx HAL Documentation
Hardware Abstraction Layer for STM32F4 familiy
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Macros
DMA2D Alpha Mode
STM32F4xx_HAL_Driver » DMA2D » DMA2D Exported Constants
Collaboration diagram for DMA2D Alpha Mode:

Macros

#define DMA2D_NO_MODIF_ALPHA   0x00000000U
 
#define DMA2D_REPLACE_ALPHA   0x00000001U
 
#define DMA2D_COMBINE_ALPHA   0x00000002U
 

Detailed Description

Macro Definition Documentation

◆ DMA2D_NO_MODIF_ALPHA

#define DMA2D_NO_MODIF_ALPHA   0x00000000U

#include <stm32f4xx_hal_dma2d.h>

No modification of the alpha channel value

Definition at line 233 of file stm32f4xx_hal_dma2d.h.

◆ DMA2D_REPLACE_ALPHA

#define DMA2D_REPLACE_ALPHA   0x00000001U

#include <stm32f4xx_hal_dma2d.h>

Replace original alpha channel value by programmed alpha value

Definition at line 234 of file stm32f4xx_hal_dma2d.h.

◆ DMA2D_COMBINE_ALPHA

#define DMA2D_COMBINE_ALPHA   0x00000002U

#include <stm32f4xx_hal_dma2d.h>

Replace original alpha channel value by programmed alpha value with original alpha channel value

Definition at line 235 of file stm32f4xx_hal_dma2d.h.