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STMicroelectronics -
Speaker Amplifier TS4962MEIJT, Battery Monitoring STC3115, LED DriverLED7707
Digital Camera Interface MCU STM32F407
Features
• Digital camera interface (DCMI) availability across the different STM32 devices, and gives an easy-to-understand explanation
on the DCMI integration in the STM32 MCUs architecture
Application
• Digital camera interface (DCMI) and CCTV/ IPCAM Peripheral General Analog Ics
Product Benefits:
• Full features function support and high performance with reasonable cost MCU and analog
Specifications:
• The DCMI applications need a frame buffer to store the captured image(s). It is then necessary to use a memory destination
that varies depending on the image size and the transfer speed.
• In some applications, it is necessary to interface with external memories that offer big sizes for data storage.
For this reason, the Quad-SPI can be used. For more details, refer to the application note Quad-SPI interface on STM32
microcontrollers (AN4760).
• The DMA2D (Chrom-ART Accelerator™ controller) is useful for color spaces transformation (such as RGB565 to ARGB8888),
or for data transfer from one memory to another.
• The JPEG codec allows data compression (JPEG encoding) or decompression (JPEG decoding).
Block Diagram:
STM32F2x7 line devices are based on a 32-bit multi-layer bus matrix, allowing the interconnection between eight masters and seven slaves.
The DCMI is a slave AHB2 peripheral. The DMA2 performs the data transfer from the DCMI to internal SRAMs or external memories through the FSMC.
Figure 6 shows the DCMI interconnection and the data path in STM32F2x7xx devices.
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