DM385 YUV capture

selvam mk

Intellectual 970 points

Other Parts Discussed in Thread: DM385

Hi All,

I'm using DM385 with IPNC RDK 3.5 integrated OV sensor to it. tying to capture yuv data from sensor.

And configured following

1. format selection as YUV422 8bit + vp.

2. forcing issDrvYuvToYuvConfig to call from issDrvMemToMemConfig of iss_comp.c

3. #define YUV_MODE from issdrv_captureApi.c

And my code hangs at retval |= ipipeif_start(IPIPEIF_RUN); of issDrvYuvToYuvStart function

I can see the frames received from sensor on CSI2 CONTROL REGISTER

root@DM385_IPNC:/opt/ipnc/bin# ./mem_rdwr.out --rd 5c001074

[host]

[host] 0x5c001074:
[host] 01DF009E
[host]

why it hangs at ipipeif_start, what is the data path for YUV to YUV capture.?

Regards,

Manoj

over 11 years ago

0 Renjith Thomas over 11 years ago

Guru 31670 points

Manoj,

I'm not really sure about what exactly the issue here. But what I remember is that CSI2 can directly to do a memory write without going through IPIPEIF. Going through IPIPEIF is optional. So have you tried using that directly?

0 selvam mk over 11 years ago in reply to Renjith Thomas

Intellectual 970 points

Hi Renjith,

Do you mean to say i can directly use ISIF..?

0 Renjith Thomas over 11 years ago in reply to selvam mk

Guru 31670 points

Selvam,

What I mean is that you may not even need ISIF CSI2 controller can write directly to memory. You can also re-direct it to ISIF as well.

0 selvam mk over 11 years ago in reply to Renjith Thomas

Intellectual 970 points

Hi Renjith,

Renjith Thomas said:
CSI2 controller can write directly to memory.

Is there any API available to write directly to memory, if not can you guide how to do that..

Regards,

Manoj

0 Renjith Thomas over 11 years ago in reply to selvam mk

Guru 31670 points

Manoj,

I'm not sure about the availability of APIs.

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DM385 YUV capture