QUAD band calculation FPGA SDRAM of video splitter
1080P60 four Quad , after the four reduced video output 1080P60 on a screen.
Press four Quad 2x2 swastika example, shown below, backward four reduced video memory, the video memory is to send all the way to the display. Within four video feed, all the way to the video memory. This solution need to occupy
1920x1080x60x (4 + 1) /0.8 = 780MHz @ 32 bandwidth.
The results do need to choose according to the above is greater than 800MHZ @ 32bit or 400MHZ @ 64bit memory program (DDR / DDR2 / DDR3 / DDR4 ) This product hardware design
** carefully pondering **, in time to make product needs to re-read a lot of things, from the heart of pondering to come to a satisfactory solution.
In fact, this would only make up a four-way video screen a 1080, that the four-way video actual amount of data into memory only the amount of data all the way video is 1920x1080.
The program calculated in this way take up
1920x1080x60x (1 + 1) /0.8 = 312MHz @ 32 bandwidth.
Carefully pondering, pondering the scale, more than four screens, segmentation is not Tian-shaped multiple video anywhere, overlay, picture in picture division multiple input video data write memory is actually only the amount of data all the way video is 1920x1080.
In fact, do more Quad need to choose this product hardware or greater than 333MHZ @ 32bit 666MHZ @ 16bit memory program (DDR / DDR2 / DDR3 / DDR4 ) design
FPGA multi-screen multi-screen video splicer
using FPGA build a digital video matrix, some design idea and design needs
a block diagram of a video segmentation logic FPGA four pictures
FPGA four-picture video splicing unit logic diagram
effect FPGA video processing external SDRAM
FPGA processing video SDRAM bandwidth computing
FPGA SDRAM video bandwidth computing process (four-picture video splitter)
