TDA4VM: The issue with insufficient bandwidth on the 960

Hi Ying Li,

This question is more for UB960, than TDA4 device, so reassigning it. 

Regards,

Brijesh

Hi，

Do I need to make another list? Thanks！

Hi,

Thank you very much for your help. After the 0x20 register is configured successfully, only CSI-2 Tx port 0 can output two video streams, while port 1 fails to output.

1. I configured it in the 960 driver code before starting the video stream.

2. Do I need to modify the device tree? I added port5, but I'm not sure how to fill in the information inside port5. I tried to refer to port4, but all tests failed.

Hi，

1. I have followed the steps you mentioned. But it failed to solve the problem. Here are the register values read when my video stream starts and stops.The registers seem to be fine.
2. Does the device tree really not need to be modified?

Thanks！

 --------------0x32:13
[    5.891366] -----------------0x33:40


Setting pipeline to PLAYING ...
New clock: GstSystemClock
[  390.462558] ---------------0x20:f0
[  390.470417] -----------------0x33:41
[  390.473981] enable RX port 0
[  390.477203] ---------------0x20:f0
[  390.480946] ---------------0x20:fc
[  390.484688] ---------------0x20:c
[  390.862125] enable RX port 1
[  390.865350] ---------------0x20:fc
[  390.869008] ---------------0x20:fc
[  390.872748] ---------------0x20:c
[  391.146986] ds90ub960 5-003d: rx0 CSI error: 0xc
[  391.151604] ds90ub960 5-003d: rx0 CSI checksum error
[  391.156563] ds90ub960 5-003d: rx0 CSI length error
[  391.250129] enable RX port 2
[  391.253346] ---------------0x20:fc
[  391.256999] ---------------0x20:fc
[  391.260739] ---------------0x20:c
IttCtrl_registerHandler: command echo registered at location 0
IttCtrl_registerHandler: command iss_read_2a_params registered at location 1
IttCtrl_registerHandler: command iss_write_2a_params registered at location 2
IttCtrl_registerHandler: command iss_raw_save registered at location 3
IttCtrl_registerHandler: command iss_yuv_save registered at location 4
IttCtrl_registerHandler: command iss_read_sensor_reg registered at location 5
IttCtrl_registerHandler: command iss_write_sensor_reg registered at location 6
IttCtrl_registerHandler: command dev_ctrl reg[  391.690986] ds90ub960 5-003d: rx2 CSI error: 0xc
istered at location 7
IttCtrl_registerHandler: command iss_sen[  391.698846] ds90ub960 5-003d: rx2 CSI checksum error
d_dcc_file registered at location 8
 NETWORK: Opened at IP Add[  391.709360] ds90ub960 5-003d: rx2 CSI length error
r = 192.168.10.99, socket port=5000!!!
Redistribute latency...
handling interrupt.:99.
Interrupt: Stopping pipeline ...
Execution ended after 0:00:03.348225805
Setting pipeline to NULL ...
[  393.779373] ---------------0x20:1c
[  393.803359] ---------------0x20:3c
[  393.827340] ---------------0x20:7c
[  393.830736] xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
[  393.835163] -----------------0x33:40
Freeing pipeline ...

HI,

Not sure what you mean by device tree modification?

Can you share the complete script you are using for initializing the imager, SER and DES?

Can you also provide register dump from the DES, for all enabled RX ports? This can be done by writing reg 0x4C to the right RX port and then dump. after that change 4C to the next RX port and dump... etc

HI，

Not sure if the script you mentioned is this one. 

Also, may I ask how to provide the register dump from the DES for all enabled RX ports? I'm not familiar with the operation. Could you please teach me how to do that? Thank you very much!

#!/bin/bash

GREEN='\033[0;32m'
NOCOLOR='\033[0m'

IMX390_CAM_FMT="${IMX390_CAM_FMT:-[fmt:SRGGB12_1X12/1936x1100 field: none]}"
OX03C10_CAM_FMT="${OX03C10_CAM_FMT:-[fmt:SBGGR12_1X12/1920x1280 field: none]}"

declare -A ALL_UB960_FMT_STR
declare -A ALL_CDNS_FMT_STR
declare -A ALL_CSI2RX_FMT_STR

setup_routes(){
    for i in "${!ALL_UB960_FMT_STR[@]}"
    do
        id="$(cut -d',' -f1 <<<"$i")"
        name="$(cut -d',' -f2 <<<"$i")"
        # UB960 ROUTING & FORMATS
        media-ctl -d $id -R "'$name' [${ALL_UB960_FMT_STR[$i]}]"

        for name in `media-ctl -d $id -p | grep entity | grep ov2312 | cut -d ' ' -f 5`; do
            UB953_NAME=`media-ctl -d $id -p -e "ov2312 $name" | grep ub953 | cut -d "\"" -f 2`
            UB960_NAME=`media-ctl -d $id -p -e "$UB953_NAME" | grep ub960 | cut -d "\"" -f 2`
            UB960_PAD=`media-ctl -d $id -p -e "$UB953_NAME" | grep ub960 | cut -d : -f 2 | awk '{print $1}'`
            media-ctl -d $id -V "'$UB960_NAME':$UB960_PAD/0 $OV2312_CAM_FMT"
            media-ctl -d $id -V "'$UB960_NAME':$UB960_PAD/1 $OV2312_CAM_FMT"
        done

        for name in `media-ctl -d $id -p | grep entity | grep imx390 | cut -d ' ' -f 5`; do
            UB953_NAME=`media-ctl -d $id -p -e "imx390 $name" | grep ub953 | cut -d "\"" -f 2`
            UB960_NAME=`media-ctl -d $id -p -e "$UB953_NAME" | grep ub960 | cut -d "\"" -f 2`
            UB960_PAD=`media-ctl -d $id -p -e "$UB953_NAME" | grep ub960 | cut -d : -f 2 | awk '{print $1}'`
            media-ctl -d $id -V "'$UB960_NAME':$UB960_PAD $IMX390_CAM_FMT"
        done

        for name in `media-ctl -d $id -p | grep entity | grep ox03c10 | cut -d ' ' -f 5`; do
            UB953_NAME=`media-ctl -d $id -p -e "ox03c10 $name" | grep ub953 | cut -d "\"" -f 2`
            UB960_NAME=`media-ctl -d $id -p -e "$UB953_NAME" | grep ub960 | cut -d "\"" -f 2`
            UB960_PAD=`media-ctl -d $id -p -e "$UB953_NAME" | grep ub960 | cut -d : -f 2 | awk '{print $1}'`
            media-ctl -d $id -V "'$UB960_NAME':$UB960_PAD $OX03C10_CAM_FMT"
        done
    done

    # CDNS ROUTING
    for i in "${!ALL_CDNS_FMT_STR[@]}"
    do
        id="$(cut -d',' -f1 <<<"$i")"
        name="$(cut -d',' -f2 <<<"$i")"
        # CDNS ROUTING & FORMATS
        media-ctl -d $id -R "'$name' [${ALL_CDNS_FMT_STR[$i]}]"

        for name in `media-ctl -d $id -p | grep entity | grep ov2312 | cut -d ' ' -f 5`; do
            UB953_NAME=`media-ctl -d $id -p -e "ov2312 $name" | grep ub953 | cut -d "\"" -f 2`
            UB960_NAME=`media-ctl -d $id -p -e "$UB953_NAME" | grep ub960 | cut -d "\"" -f 2`
            UB960_PAD=`media-ctl -d $id -p -e "$UB953_NAME" | grep ub960 | cut -d : -f 2 | awk '{print $1}'`
            CSI_PAD0=`media-ctl -d $id -p -e "$UB960_NAME" | grep $UB960_PAD/0.*[ACTIVE] | cut -d "/" -f 3 | awk '{print $1}'`
            CSI_PAD1=`media-ctl -d $id -p -e "$UB960_NAME" | grep $UB960_PAD/1.*[ACTIVE] | cut -d "/" -f 3 | awk '{print $1}'`
            CSI_BRIDGE_NAME=`media-ctl -d $id -p -e "$UB960_NAME" | grep csi-bridge | cut -d "\"" -f 2`
            media-ctl -d $id -V "'$CSI_BRIDGE_NAME':0/$CSI_PAD0 $OV2312_CAM_FMT"
            media-ctl -d $id -V "'$CSI_BRIDGE_NAME':0/$CSI_PAD1 $OV2312_CAM_FMT"
        done

        for name in `media-ctl -d $id -p | grep entity | grep imx390 | cut -d ' ' -f 5`; do
            UB953_NAME=`media-ctl -d $id -p -e "imx390 $name" | grep ub953 | cut -d "\"" -f 2`
            UB960_NAME=`media-ctl -d $id -p -e "$UB953_NAME" | grep ub960 | cut -d "\"" -f 2`
            UB960_PAD=`media-ctl -d $id -p -e "$UB953_NAME" | grep ub960 | cut -d : -f 2 | awk '{print $1}'`
            CSI_PAD=`media-ctl -d $id -p -e "$UB960_NAME" | grep $UB960_PAD/.*[ACTIVE] | cut -d "/" -f 3 | awk '{print $1}'`
            CSI_BRIDGE_NAME=`media-ctl -d $id -p -e "$UB960_NAME" | grep csi-bridge | cut -d "\"" -f 2`
            media-ctl -d $id -V "'$CSI_BRIDGE_NAME':0/$CSI_PAD $IMX390_CAM_FMT"
        done
	
        for name in `media-ctl -d $id -p | grep entity | grep ox03c10 | cut -d ' ' -f 5`; do
            UB953_NAME=`media-ctl -d $id -p -e "ox03c10 $name" | grep ub953 | cut -d "\"" -f 2`
            UB960_NAME=`media-ctl -d $id -p -e "$UB953_NAME" | grep ub960 | cut -d "\"" -f 2`
            UB960_PAD=`media-ctl -d $id -p -e "$UB953_NAME" | grep ub960 | cut -d : -f 2 | awk '{print $1}'`
            CSI_PAD=`media-ctl -d $id -p -e "$UB960_NAME" | grep $UB960_PAD/.*[ACTIVE] | cut -d "/" -f 3 | awk '{print $1}'`
            CSI_BRIDGE_NAME=`media-ctl -d $id -p -e "$UB960_NAME" | grep csi-bridge | cut -d "\"" -f 2`
            media-ctl -d $id -V "'$CSI_BRIDGE_NAME':0/$CSI_PAD $OX03C10_CAM_FMT"
        done
    done

    # CSI2RX ROUTING
    for i in "${!ALL_CSI2RX_FMT_STR[@]}"
    do
        id="$(cut -d',' -f1 <<<"$i")"
        name="$(cut -d',' -f2 <<<"$i")"
        CSI2RX_NAME=$name
        media-ctl -d $id -R "'$name' [${ALL_CSI2RX_FMT_STR[$i]}]"
        # CSI2RX ROUTING & FORMATS
        for name in `media-ctl -d $id -p | grep entity | grep ov2312 | cut -d ' ' -f 5`; do
            UB953_NAME=`media-ctl -d $id -p -e "ov2312 $name" | grep ub953 | cut -d "\"" -f 2`
            UB960_NAME=`media-ctl -d $id -p -e "$UB953_NAME" | grep ub960 | cut -d "\"" -f 2`
            UB960_PAD=`media-ctl -d $id -p -e "$UB953_NAME" | grep ub960 | cut -d : -f 2 | awk '{print $1}'`
            CSI_PAD0=`media-ctl -d $id -p -e "$UB960_NAME" | grep $UB960_PAD/0.*[ACTIVE] | cut -d "/" -f 3 | awk '{print $1}'`
            CSI_PAD1=`media-ctl -d $id -p -e "$UB960_NAME" | grep $UB960_PAD/1.*[ACTIVE] | cut -d "/" -f 3 | awk '{print $1}'`
            media-ctl -d $id -V "'$CSI2RX_NAME':0/$CSI_PAD0 $OV2312_CAM_FMT"
            media-ctl -d $id -V "'$CSI2RX_NAME':0/$CSI_PAD1 $OV2312_CAM_FMT"
        done

        for name in `media-ctl -d $id -p | grep entity | grep imx390 | cut -d ' ' -f 5`; do
            UB953_NAME=`media-ctl -d $id -p -e "imx390 $name" | grep ub953 | cut -d "\"" -f 2`
            UB960_NAME=`media-ctl -d $id -p -e "$UB953_NAME" | grep ub960 | cut -d "\"" -f 2`
            UB960_PAD=`media-ctl -d $id -p -e "$UB953_NAME" | grep ub960 | cut -d : -f 2 | awk '{print $1}'`
            CSI_PAD=`media-ctl -d $id -p -e "$UB960_NAME" | grep $UB960_PAD/.*[ACTIVE] | cut -d "/" -f 3 | awk '{print $1}'`
            media-ctl -d $id -V "'$CSI2RX_NAME':0/$CSI_PAD $IMX390_CAM_FMT"
        done

	    for name in `media-ctl -d $id -p | grep entity | grep ox03c10 | cut -d ' ' -f 5`; do
            UB953_NAME=`media-ctl -d $id -p -e "ox03c10 $name" | grep ub953 | cut -d "\"" -f 2`
            UB960_NAME=`media-ctl -d $id -p -e "$UB953_NAME" | grep ub960 | cut -d "\"" -f 2`
            UB960_PAD=`media-ctl -d $id -p -e "$UB953_NAME" | grep ub960 | cut -d : -f 2 | awk '{print $1}'`
            CSI_PAD=`media-ctl -d $id -p -e "$UB960_NAME" | grep $UB960_PAD/.*[ACTIVE] | cut -d "/" -f 3 | awk '{print $1}'`
            media-ctl -d $id -V "'$CSI2RX_NAME':0/$CSI_PAD $OX03C10_CAM_FMT"
        done
    done
}



setup_ox03c10(){
    i=0
    for media_id in {0..3}; do
    # UB953 FORMATS
    UB960_FMT_STR=""
    CDNS_FMT_STR=""
    CSI2RX_FMT_STR=""
    for name in `media-ctl -d $media_id -p | grep entity | grep ox03c10 | cut -d ' ' -f 5`; do

        CAM_SUBDEV=`media-ctl -d $media_id -p -e "ox03c10 $name" | grep v4l-subdev | awk '{print $4}'`
        v4l2-ctl -d $CAM_SUBDEV --set-ctrl wide_dynamic_range=0

        UB953_NAME=`media-ctl -d $media_id -p -e "ox03c10 $name" | grep ub953 | cut -d "\"" -f 2`
        media-ctl -d $media_id -V "'$UB953_NAME':0 $OX03C10_CAM_FMT"

        UB960_NAME=`media-ctl -d $media_id -p -e "$UB953_NAME" | grep ub960 | cut -d "\"" -f 2`
        UB960_PAD=`media-ctl -d $media_id -p -e "$UB953_NAME" | grep ub960 | cut -d : -f 2 | awk '{print $1}'`

        CSI_BRIDGE_NAME=`media-ctl -d $media_id -p -e "$UB960_NAME" | grep csi-bridge | cut -d "\"" -f 2`

        CSI2RX_NAME=`media-ctl -d $media_id -p -e "$CSI_BRIDGE_NAME" | grep "ticsi2rx\"" | cut -d "\"" -f 2`

        LAST_PAD=`echo ${ALL_UB960_FMT_STR[$media_id,$UB960_NAME]} | rev | cut -d'/' -f 1 | rev`
        LAST_PAD=${LAST_PAD:0:1}
        if [[ "$LAST_PAD" == "" ]] ; then
            NEXT_PAD=$UB960_PAD
        else
            NEXT_PAD=$(($LAST_PAD+1))
        fi

        CSI2RX_CONTEXT_NAME="$CSI2RX_NAME context $((NEXT_PAD+1))"

        UB960_FMT_STR="${UB960_PAD}/0 -> 4/$(($NEXT_PAD)) [1]"
        CDNS_FMT_STR="0/${NEXT_PAD} -> 1/$(($NEXT_PAD)) [1]"
        CSI2RX_FMT_STR="0/${NEXT_PAD} -> $(($NEXT_PAD+2))/0 [1]"

        # Append UB960 Routes
        if [[ -v "ALL_UB960_FMT_STR[$media_id,$UB960_NAME]" ]] ; then
            ALL_UB960_FMT_STR[$media_id,$UB960_NAME]="${ALL_UB960_FMT_STR[$media_id,$UB960_NAME]}, $UB960_FMT_STR"
        else
            ALL_UB960_FMT_STR[$media_id,$UB960_NAME]="$UB960_FMT_STR"
        fi

        # Append CDNS Routes
        if [[ -v "ALL_CDNS_FMT_STR[$media_id,$CSI_BRIDGE_NAME]" ]] ; then
            ALL_CDNS_FMT_STR[$media_id,$CSI_BRIDGE_NAME]="${ALL_CDNS_FMT_STR[$media_id,$CSI_BRIDGE_NAME]}, $CDNS_FMT_STR"
        else
            ALL_CDNS_FMT_STR[$media_id,$CSI_BRIDGE_NAME]="$CDNS_FMT_STR"
        fi

        # Append CSIRX Routes
        if [[ -v "ALL_CSI2RX_FMT_STR[$media_id,$CSI2RX_NAME]" ]] ; then
            ALL_CSI2RX_FMT_STR[$media_id,$CSI2RX_NAME]="${ALL_CSI2RX_FMT_STR[$media_id,$CSI2RX_NAME]}, $CSI2RX_FMT_STR"
        else
            ALL_CSI2RX_FMT_STR[$media_id,$CSI2RX_NAME]="$CSI2RX_FMT_STR"
        fi
        CAM_DEV=`media-ctl -d $media_id -p -e "$CSI2RX_CONTEXT_NAME" | grep video | awk '{print $4}'`
        CAM_DEV_NAME=/dev/video-ox03c10-cam$i

        CAM_SUBDEV_NAME=/dev/v4l-ox03c10-subdev$i

        ln -snf $CAM_DEV $CAM_DEV_NAME
        ln -snf $CAM_SUBDEV $CAM_SUBDEV_NAME

        v4l2-ctl -d $CAM_SUBDEV_NAME --set-ctrl red_balance=256
        v4l2-ctl -d $CAM_SUBDEV_NAME --set-ctrl blue_balance=256

        CAM_RESOLUTION=`echo $OX03C10_CAM_FMT | cut -d / -f 2 | cut -d " " -f 1`
        CAM_FMT=`echo $OX03C10_CAM_FMT | cut -d : -f 2 | cut -d _ -f 1`
        yavta -s $CAM_RESOLUTION -f $CAM_FMT $CAM_DEV &> /dev/null

        echo -e "${GREEN}OX03C10 Camera $i detected${NOCOLOR}"
        echo "    device = $CAM_DEV_NAME"
        echo "    name = ox03c10"
        echo "    format = $OX03C10_CAM_FMT"
        echo "    subdev_id = $CAM_SUBDEV_NAME"
        echo "    isp_required = yes"
        echo "    ldc_required = yes"

        ((i++))
    done
    done
}





setup_USB_camera(){
    ls /dev/v4l/by-path/*usb*video-index0 > /dev/null 2>&1
    if [ "$?" == "0" ]; then
        USB_CAM_ARR=(`ls /dev/v4l/by-path/*usb*video-index0`)
        count=0
        for i in ${USB_CAM_ARR[@]}
        do
            USB_CAM_DEV=`readlink -f $i`
            USB_CAM_NAME=/dev/video-usb-cam$count
            ln -snf $USB_CAM_DEV $USB_CAM_NAME
            echo -e "${GREEN}USB Camera $count detected${NOCOLOR}"
            echo "    device = $USB_CAM_NAME"
            echo "    format = jpeg"
            count=$(($count + 1))
        done
    fi
}

setup_USB_camera
setup_ox03c10
setup_imx390
setup_routes

Hello,

to get register dump from all RX ports, do the following:

If your camera is connected to UB960 RX port0, then before reading the below listed registers you must write DES reg 0x4C = 0x01. If using RX port1 then 0x4C = 0x12, for RX port2 write 0x4C = 0x24, and for RX port3 write 0x4C = 0x36. after that read the listed registers:

0x02-0x06, 0x0C, 0x1F-0x24, 0x32-0x37, 0x40-0x49, 0x4B-0x58, 0x5B-0x6D, 0x70-0x76, 0x7A-0x7D, 0xA5, 0xB9, 0xD2-0xDB.

Hi，

Thank you for your guidance. Here are the register values printed after starting the video stream in the 960 driver. Could you please help me check it?

[   89.646045] ----------RX port:2
[   89.649229] --------reg:02--val:1e
[   89.652758] --------reg:03--val:40
[   89.656286] --------reg:04--val:d0
[   89.659815] --------reg:05--val:01
[   89.663343] --------reg:06--val:00
[   89.666872] --------reg:0c--val:0f
[   89.670397] --------reg:1f--val:00
[   89.673911] --------reg:20--val:0c
[   89.677439] --------reg:21--val:03
[   89.680963] --------reg:22--val:00
[   89.684489] --------reg:23--val:00
[   89.688013] --------reg:24--val:00
[   89.691541] --------reg:32--val:13
[   89.695064] --------reg:33--val:41
[   89.698591] --------reg:34--val:00
[   89.702175] --------reg:35--val:11
[   89.705690] --------reg:36--val:00
[   89.709220] --------reg:37--val:03
[   89.712747] --------reg:40--val:00
[   89.716273] --------reg:41--val:a9
[   89.719799] --------reg:42--val:71
[   89.723327] --------reg:43--val:01
[   89.726852] --------reg:44--val:00
[   89.730380] --------reg:45--val:00
[   89.733894] --------reg:46--val:20
[   89.737418] --------reg:47--val:00
[   89.740947] --------reg:48--val:00
[   89.744470] --------reg:49--val:00
[   89.747997] --------reg:4b--val:12
[   89.751520] --------reg:4c--val:24
[   89.755046] --------reg:4d--val:83
[   89.758570] --------reg:4e--val:04
[   89.762088] --------reg:4f--val:64
[   89.765603] --------reg:50--val:00
[   89.769126] --------reg:51--val:00
[   89.772653] --------reg:52--val:00
[   89.776178] --------reg:53--val:03
[   89.779703] --------reg:54--val:00
[   89.783228] --------reg:55--val:00
[   89.786752] --------reg:56--val:00
[   89.790279] --------reg:57--val:00
[   89.793793] --------reg:58--val:5e
[   89.797316] --------reg:5b--val:30
[   89.800844] --------reg:5c--val:8c
[   89.804370] --------reg:5d--val:6c
[   89.807897] --------reg:5e--val:00
[   89.811419] --------reg:5f--val:00
[   89.814946] --------reg:60--val:00
[   89.818469] --------reg:61--val:00
[   89.821982] --------reg:62--val:00
[   89.825507] --------reg:63--val:00
[   89.829030] --------reg:64--val:00
[   89.832556] --------reg:65--val:98
[   89.836081] --------reg:66--val:00
[   89.839606] --------reg:67--val:00
[   89.843129] --------reg:68--val:00
[   89.846656] --------reg:69--val:00
[   89.850179] --------reg:6a--val:00
[   89.853693] --------reg:6b--val:00
[   89.857218] --------reg:6c--val:00
[   89.860741] --------reg:6d--val:7c
[   89.864268] --------reg:70--val:ab
[   89.867794] --------reg:71--val:ac
[   89.871320] --------reg:72--val:aa
[   89.874846] --------reg:73--val:05
[   89.878371] --------reg:74--val:06
[   89.881885] --------reg:75--val:0b
[   89.885409] --------reg:76--val:40
[   89.888952] --------reg:7a--val:00
[   89.892481] --------reg:7b--val:00
[   89.896007] --------reg:7c--val:20
[   89.899530] --------reg:7d--val:00
[   89.903057] --------reg:a5--val:19
[   89.906581] --------reg:b9--val:33
[   89.910096] --------reg:d2--val:94
[   89.913611] --------reg:d3--val:00
[   89.917136] --------reg:d4--val:60
[   89.920660] --------reg:d5--val:e0
[   89.924188] --------reg:d6--val:00
[   89.927712] --------reg:d7--val:02
[   89.931237] --------reg:d8--val:07
[   89.934759] --------reg:d9--val:7f
[   89.938287] --------reg:da--val:00
[   89.941801] --------reg:db--val:00

Here are the register values printed after disabling the video stream.

xxxxxxxxxxxxxx disable_streams!
[  102.588299] ----------nport:4
[  102.591488] --------reg:02--val:1e
[  102.595015] --------reg:03--val:40
[  102.598541] --------reg:04--val:d0
[  102.602058] --------reg:05--val:01
[  102.605573] --------reg:06--val:00
[  102.609095] --------reg:0c--val:0f
[  102.612621] --------reg:1f--val:00
[  102.616143] --------reg:20--val:fc
[  102.619667] --------reg:21--val:03
[  102.623190] --------reg:22--val:00
[  102.626714] --------reg:23--val:00
[  102.630236] --------reg:24--val:00
[  102.633750] --------reg:32--val:13
[  102.637273] --------reg:33--val:40
[  102.640799] --------reg:34--val:00
[  102.644325] --------reg:35--val:10
[  102.647847] --------reg:36--val:00
[  102.651370] --------reg:37--val:02
[  102.654892] --------reg:40--val:00
[  102.658415] --------reg:41--val:a9
[  102.661930] --------reg:42--val:71
[  102.665453] --------reg:43--val:01
[  102.668976] --------reg:44--val:00
[  102.672498] --------reg:45--val:00
[  102.676021] --------reg:46--val:20
[  102.679543] --------reg:47--val:00
[  102.683066] --------reg:48--val:00
[  102.686587] --------reg:49--val:00
[  102.690114] --------reg:4b--val:12
[  102.693628] --------reg:4c--val:10
[  102.697150] --------reg:4d--val:43
[  102.700674] --------reg:4e--val:04
[  102.704195] --------reg:4f--val:64
[  102.707718] --------reg:50--val:ff
[  102.711240] --------reg:51--val:00
[  102.714763] --------reg:52--val:00
[  102.718284] --------reg:53--val:04
[  102.721798] --------reg:54--val:00
[  102.725322] --------reg:55--val:00
[  102.728844] --------reg:56--val:00
[  102.732367] --------reg:57--val:00
[  102.735889] --------reg:58--val:5e
[  102.739412] --------reg:5b--val:30
[  102.742933] --------reg:5c--val:8a
[  102.746457] --------reg:5d--val:6c
[  102.749971] --------reg:5e--val:00
[  102.753491] --------reg:5f--val:00
[  102.757015] --------reg:60--val:00
[  102.760536] --------reg:61--val:00
[  102.764059] --------reg:62--val:00
[  102.767580] --------reg:63--val:00
[  102.771103] --------reg:64--val:00
[  102.774626] --------reg:65--val:96
[  102.778142] --------reg:66--val:00
[  102.781656] --------reg:67--val:00
[  102.785178] --------reg:68--val:00
[  102.788700] --------reg:69--val:00
[  102.792223] --------reg:6a--val:00
[  102.795761] --------reg:6b--val:00
[  102.799422] --------reg:6c--val:00
[  102.802944] --------reg:6d--val:7c
[  102.806468] --------reg:70--val:6b
[  102.809981] --------reg:71--val:6c
[  102.813502] --------reg:72--val:55
[  102.817024] --------reg:73--val:05
[  102.820545] --------reg:74--val:06
[  102.824067] --------reg:75--val:0b
[  102.827592] --------reg:76--val:40
[  102.831175] --------reg:7a--val:00
[  102.834704] --------reg:7b--val:00
[  102.838228] --------reg:7c--val:20
[  102.841742] --------reg:7d--val:00
[  102.845263] --------reg:a5--val:19
[  102.848789] --------reg:b9--val:33
[  102.852311] --------reg:d2--val:94
[  102.855834] --------reg:d3--val:00
[  102.859355] --------reg:d4--val:60
[  102.862878] --------reg:d5--val:e0
[  102.866399] --------reg:d6--val:00
[  102.869912] --------reg:d7--val:02
[  102.873435] --------reg:d8--val:07
[  102.876956] --------reg:d9--val:7f
[  102.880478] --------reg:da--val:00
[  102.883999] --------reg:db--val:00

Thank you again！

Hello Ying-Li,

Looking at your registers you have provided, I do not see a single error. You have stable LOCK and RX PASS. Also, I can see you are receiving data, and this data is being outputted correctly at the CSI Tx output. 

You have configured correctly that RX0 and RX1 data go to CSI Tx0, and data from RX2 and Rx3 go CSI Tx1.

Hence, not sure what is the problem on your system? Please double check your SoC configurations and it is configured to receive the right CSI rate at 1.6Gbps/lane with non-continuous CSI clk (as configured on the UB960 register 0x33)

Hi,

Sorry, I'm a bit confused with the information right now. Can we analyze this issue from the beginning?

I am currently debugging the video stream output of four sensors on this TDA4-EVM board. The sensor is OX03C10, with output configuration of 1920×1280, 30 fps, raw12. The serializer is ds90ub953. Currently, when outputting 4-channel video streams simultaneously, the UB960 driver reports

"[  922.764084] ds90ub960 5-003d: rx0 buffer error

[  922.769119] ds90ub960 5-003d: rx1 buffer error

[  923.318153] ds90ub960 5-003d: rx2 buffer error

[  922.774152] ds90ub960 5-003d: rx3 buffer error" .What do you think is causing this error, and how can it be resolved? My original intention is to solve this problem.

Thanks！

Hello Ying Li,

Can you explain if these errors are coming from the UB960 or from the TDA4? If from the TDA4, what is the actual error to display this message?

Can you configure the UB960 register 0x33[1] = 1 to enable CSI continuous clk mode.

Hi，

The above error originates from the 960 driver. Additionally, when the video stream is started, the value of register 0x33 in UB960 is 0x41, and when the video stream is stopped, the value is 0x40. That seems correct.

I suspect the error is caused by bandwidth limitation. Reducing the frame rate can minimize such errors, but it fails to meet my current requirements. My sensor is OX03C10, with output configuration of 1920×1280, 30 fps, raw12. The serializer is ds90ub953. 

I am using the development board shown in the image below. Thank you very much！

Hi,

My problem has been solved. I used the two ub960 chips on this deserializer board to transmit two video streams respectively. Thank you very much for your help these days.

Hi,

Ying.li said:

The above error originates from the 960 driver. Additionally, when the video stream is started, the value of register 0x33 in UB960 is 0x41, and when the video stream is stopped, the value is 0x40. That seems correct.

Having 0x33 = 0x41 means the CSI Tx port is enabled, and the value of 0x33 = 0x40 means the CSI Tx is disabled. It does not mean you have error.

Try to set it to 0x41 again and see if you receive data again.