2017-11-06 05:29 AM
The purpose this post is to need some suggestion. I am describing the information below.
The system will contain micro-controller, camera and SD card(SDIO Interface). For camera we have selected 5 MP DCMI Interface. We capture the picture and save this picture into SD card memory. To achieve this application we have selected STM32F407VGT6 micro-controller. So we have below queries regarding the same.
Camera description mention below
Features:
Onboard LDO regulators for 2.8V and 1.8V
Single 3.3V power input
2.54mm (0.1 inch) standard pin out
Open source project
supported
active array size: 2592 x 1944
power supply:
core: 1.5VDC + 5% (internal regulator)
analog: 2.6 ~ 3.0V
I/O: 1.7 ~ 3.0V
output formats :
(8-bit): YUV(422/420) / YCbCr422,
RGB565/555/444, CCIR656,
8-bit compression data,
8/10-bit raw RGB data
lens size: 1/4?
input clock frequency: 6 ~ 27 MHz
shutter: rolling shutter
maximum image transfer rate:
5 megapixel (2592�1944): 15 fps (and any size scaling down from 5 megapixel)
1080p (1920�1080): 30 fps
720p (1280�720): 60 fps
VGA (640�480): 60 fps
QVGA (320�240): 120 fps
scan mode: progressive
pixel size: 1.4 ?m x 1.4 ?m
image area: 3673.6 ?m x 2738.4 ?m
RAW,RGB,YUV,JPEG output support
External 1/4 inch high quality M12x0.5 lens
Pin Out:
Pin No.
PIN NAME
TYPE
DESCRIPTION
1
VCC
POWER
3.3v Power supply
2
GND
Ground
Power ground
3
SCL
Input
Two-Wire Serial Interface Clock
4
S
DATA
Bi-directional
Two-Wire Serial Interface Data I/O
5
VSYNC
Output
Active High: Frame Valid; indicates active frame
6
HREF
Output
Active High: Line/Data Valid; indicates active pixels
7
PCLK
Output
Pixel Clock output from sensor
8
XCLK
Input
Master Clock into Sensor
9
D
OUT
9
Output
Pixel Data Output 9 (MSB)
10
D
OUT
8
Output
Pixel Data Output 8
11
D
OUT
7
Output
Pixel Data Output 7
12
D
OUT
6
Output
Pixel Data Output 6
13
D
OUT
5
Output
Pixel Data Output 5
14
D
OUT
4
Output
Pixel Data Output 4
15
D
OUT
3
Output
Pixel Data Output 3
16
D
OUT
2
Output
Pixel Data Output 2 (LSB)
17
PWDN
Input
Power down
18
RSV
NC
Reserved
19
D
OUT
1
Output
Pixel Data Output 1(10bit mode)
20
D
OUT
0
Output
Pixel Data Output 0 (10bit mode)
Looking forward for your positive response. Kindly let us know if you need any other information.
##dcmi #sdcard ##stm32f4 ##camera ##ram2017-11-06 06:05 AM
>>
If we will go with this approach then do we need to interface external RAM with Micro-controller?
You're going to need to stage the data somewhere to process it. The F407 is not something I'd chose to do 5MP @ 15fps. I'd suggest you do some basic math on the data volume and bandwidth to understand what you're asking to do.
2017-11-06 06:20 AM
Hi
haresh.prajapati
,I recommend you to refer to
(Digital camera interface (DCMI) for STM32 MCUs). It will give you some insights about the DCMI usage for the STM32 devices and then may help you to decide what to do exactly.-Amel
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