Configuration item

Selectable option/ Value

Description

Capture mode

Snapshot | Continuous

Note: support Snapshot mode only.

Synchronization mode

Hardware | Embedded

- Hardware: Hardware synchronization data capture is synchronized with the HSYNC/VSYNC signals.

- Embedded: Embedded synchronization data capture is synchronized with synchronization codes embedded in the data flow.

Note: support Hardware mode only.

Pixel clock polarity

Rising | Falling

- Falling: Pixel clock active on Falling edge.

- Rising: Pixel clock active on Rising edge.

Vertical synchronization polarity

High | Low

- Low: vertical synchronization active Low.

- High: Vertical synchronization active High.

Horizontal synchronization polarity

High | Low

- Low: vertical synchronization active Low.

- High: Vertical synchronization active High.

Capture rate

All | 1of2 | 1of4

- All: All frames are captured.

- 1of2: Every alternate frame captured.

- 1of4: On frame in 4 frames captured.

Capture data size (Bytes)

(Specify number of data bytes to capture)

The number of data (in bytes) to transfer for DMA. It is depend on image size and color format.

For example:

To capture image size 160 x 120, and the pixel color is 16bits (RGB565).

Data size (bytes) = 160 * 120 * 2

Output buffer

-

Note: The current release require manual configure.

Output buffer var name

(Specify output buffer name)

Note: support specify the external memory address.

Output buffer var type

double | single | int8 | uint8 | int16 | uint16| int32 | uint32

Note: This configuration is use for configure the DMA memory data size.

Use uint16 for 16bit external memory (1024 x 16 or 512 x 16).

Output buffer size

(Specify size of output buffer)

This configuration is for validation only (not effect to code generation), to make sure the buffer have sufficient space for storing data.

Remap DCMI pins

Profile #1 | Profile #2

This is pin set configuration.

Profile #1: for low pin count, example: F4DISCOVERY board.

Profile #2: for more pin count MCU, example: FiO2 board.

Sample time (sec)

(Specify sample time)

For example,

Sample time 0.01 for 10Hz capture rate.