[Elphel-support] 14Mpix sensor update

[Elphel Support]

Hello Richard,

Oleg already fixed that issue, he got 13.5 fps - there is some inconsistency in the data sheet, he is trying to figure out what to believe and what is wrong. Default fps after reset is also not maximal (as it was for 5 MPix), but those 8 fps. When running at full frame rate full resolution JPEG mode will limit frame rate: JPEG needs 1.5 clock cycles/pixel JP4 - 1 clock/pixel, current compressor clock is 240MHz. Next batch of cameras will use  speed grade 3, while current is 2 and the FPGA meets timing for -1 (some early units were -1). We may try to increase clock for both compressor and memory (memory bandwidth is currently 2*4*200Mhz=1600MB/s, for simultaneous 4 channels it will be another limit - each pixel (byte) has to pass memory interface twice - recorded and then readout. I believe it will be possible to increase overall bandwidth by 30-50%.

We also have sent PCBs fro the 18MPix sensor - it is BSI so should have better sensitivity than 14 MPix which is FSI.

Andrey
---- On Mon, 26 Mar 2018 19:28:26 -0700 Richard Rigby<rrigby at redzone.com> wrote ---- 
Hi Oleg,

Thanks you for the new firmware.


I was able to get the 14MPx sensor working which was great. It's seems to be running at about 8fps.



Kind regards,

Richard Rigby
Software Developer




www.redzone.com



 Ph: +64 9 479 9901
Fax: +64 9 479 9904


13 Tarndale Grove • Albany • Auckland 0632 • New Zealand
















 
On 23 March 2018 at 06:42, Oleg <support-list at support.elphel.com> wrote:
Hi,


https://community.elphel.com/files/393/20180322/
- 5MPx works - there's serial number added to http://192.168.0.9:2323/meta (2323 = port 0 ... 2326 = port 3)
<CameraSerialNumber>"00:0E:64:10:F2:7F"</CameraSerialNumber>- see instructions in readme_14MPx.md for 14MPx in the archive. Try with SD card.
- I'm working on exposure - there are incorrect fps readings.


 Let me know if you have any problems.



Regards,
Oleg 

On Wed, Mar 21, 2018 at 7:41 PM, Richard Rigby <rrigby at redzone.com> wrote:


Awesome, thank you.


Kind regards,

Richard Rigby
Software Developer




www.redzone.com



 Ph: +64 9 479 9901
Fax: +64 9 479 9904


13 Tarndale Grove • Albany • Auckland 0632 • New Zealand
















 
On 22 March 2018 at 14:40, Oleg <support-list at support.elphel.com> wrote:
Ok. Will upload tomorrow. Need to test a little if it still works for 5MPx.Oleg

 

 



 


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