Hi Laurent, 2013/2/14 Laurent Pinchart <laurent.pinch...@ideasonboard.com>: > On Thursday 14 February 2013 17:17:40 Adriano Martins wrote: >> 2013/2/13 Adriano Martins <adrianomatosmart...@gmail.com>: >> > 2013/2/13 Adriano Martins <adrianomatosmart...@gmail.com>: >> >> Hi, >> >> >> >> Please, help me :-) >> >> >> >> I trying capture frames from my new sensor, ov5640. I already capture >> >> images from a mt9p031 camera, but I have some problems with ov5640. >> >> >> >> Someone can explain me what are the CCDC_VD0_IRQ and CCDC_VD1_IRQ? > > Those two interrupts are generated by the CCDC using programmable line > counters. The ISP driver programs the CCDC to generate the VD0 interrupt on > the last line of the image and the VD1 interrupt at 2/3 of the image.
Ok, I understand now. :-) >> >> In the mt9p031 sensor, I get all interrupts (including HS_VS_IRQ) and >> >> I can capture frames. >> >> >> >> In other sensor, I can't capture any frame. I get many HS_VS_IRQ only, >> >> then yavta app hangs and I need stop it. Then I get CCDC stop timeout! >> >> Is it necessary get CCDC_VD0_IRQ and CCDC_VD1_IRQ ever to capture a >> >> frame? > > Yes. A failure to get them usually indicates that the number of lines > generated by the sensor doesn't match the number of lines expected by the CCDC > (possibly because the HS signal is completely missing). Correct. I had hardware problems. The HS signal was unconnected. >> >> I think all signal from ov5640 sensor are ok. A question about it: >> >> vsync may be in high level until the frame is transmitted? On my case >> >> I see just a pulse of vsync before hsync pulses. Is it correct? >> > >> > I can capture frames now, and get all interrupts. >> > But, The image has only green color. >> >> I solved my problem. The .data_lane_shift and yuv sequence were wrong. > > Glad to know you've solved the problem :-) > >> > I have configured the CCDC module as V4L2_MBUS_FMT_UYVY8_2X8, and the >> > sensor output format is configured as YUV422 with sequence UYVY. >> > >> > somebody has any idea? Thanks Regards Adriano Martins -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
