TDA4VM: CSIRX ecc and crc error

subin li

Part Number: TDA4VM

Dear experts,

I use psdk_rtos_sdk_07_00 to develop TDA4 software.

My camera link is TDA4+UB954+UB953+4K sensor.

Sometimes I found the status of csirx is somewhat abnormal, the values of crcCount, eccCount and correctedEccCount are increasing.

The crcCount, eccCount and correctedEccCount are defined in Csirx_InstStatus, csirx.h.

When the problem occurs, I found the status of UB953 is OK, the value of 0x5C(CSI_ERR_CNT register), 0x5D(CSI_ERR_STATUS register), 0x5E(CSI_ERR_DLANE01 register), 0x5F(CSI_ERR_DLANE23 register) and 0x60(CSI_ERR_CLK_LANE register) are 0.

The status of UB954 is OK, the value of 0x7A(CSI_RX_STS register) and 0x7B(CSI_ERR_COUNTER register) are 0.

But in the driver of CSIRX, we cannot get the image datas, and the crcCount, eccCount and correctedEccCount will increase.

I cannot solve the problem by powering off and powering on the entire physical link(including UB954+UB953+4K sensor).

I cannot solve the problem by calling Csirx_deInit() and Csirx_init().

But if I powering off and powering on the TDA4, it will get back to normal.

Our question is:

1、Why this problem occurs, why csirx cannot receive image datas and why the crcCount, eccCount and correctedEccCount increase?

2、When this problem occurs, how to get back to normal in the case of uninterrupted power?

over 4 years ago

0 Brijesh Jadav over 4 years ago

TI__Guru**** 475765 points

Hi Subin,

UB953 will report error status in the incoming stream and so ub954, but I doubt it will not report error on out going streams. These errors are detected in CSIRX.

Do you see these errors, ecc, crc, continuously incrementing?

Are the lane speed and other parameters set up correctly?

Regards,

Brijesh

0 subin li over 4 years ago in reply to Brijesh Jadav

Expert 1050 points

Hi, Brijesh

I see these errors, ecc, crc, are continuously incrementing.

The lane speed and other parameters are set up correctly. This is an accidental error.

I think if these errors are caused by out going streams of UB954 and UB953, when I power off and then power on UB954, UB953 and sensor, it should be back to normal.

0 Brijesh Jadav over 4 years ago in reply to subin li

TI__Guru**** 475765 points

Hi Subin Li,

After power cycle the board, does it work fine for the first iteration? or if you just stop the chain and restart it, does it work fine?

Regards,

Brijesh

0 subin li over 4 years ago in reply to Brijesh Jadav

Expert 1050 points

Hi, Brijesh

After power cycle the board, it works fine for the first iteration.

But if I keep the board power on, and restart the software, sometimes may encountered this problem.

When this problem occurs, if I just stop the chain(UB954+UB953+4K sensor) and restart it, it doesn't work fine.

Regards,

Subin

0 Brijesh Jadav over 4 years ago in reply to subin li

TI__Guru**** 475765 points

Hi Subil,

I am currently suspecting that this issue might be related to the errata i2174. Checking with HW team.

Regards,

Brijesh

0 subin li over 4 years ago in reply to Brijesh Jadav

Expert 1050 points

thank you.

looking forward to hearing from you.

0 subin li over 4 years ago in reply to Brijesh Jadav

Expert 1050 points

Hi, Brijesh

is there any good news?

0 Brijesh Jadav over 4 years ago in reply to subin li

TI__Guru**** 475765 points

Hi Subin Li,

I think the potential reason for this issue is errata i2174, as given in

When this issue comes, the behavior is undefined, so can we please check this issue on ES1.1?

Regards,

Brijesh

0 subin li over 4 years ago in reply to Brijesh Jadav

Expert 1050 points

Hi, Brijesh

Now we don't have ES1.1.

Can you help us try to reproduce this problem on ES1.0, and then check this issue on ES1.1?

thank you!

0 subin li over 4 years ago in reply to Brijesh Jadav

Expert 1050 points

0 Brijesh Jadav over 4 years ago in reply to subin li

TI__Guru**** 475765 points

Hi subin li,

i am sorry i did not get your question. what do you mean by reproducing this error? I thing you have a way to reproduce this issue on ES1.0. isn't it?

Regards,

Brijesh

0 subin li over 4 years ago in reply to Brijesh Jadav

Expert 1050 points

Hi Brijesh

I mean we don't have ES1.1 chip, so I cannot verify your statement.

Can you help us verify it, first reproduce this problem on ES1.0, and then see if the problem is solved after changing to ES1.1.

thank you

0 Brijesh Jadav over 4 years ago in reply to subin li

TI__Guru**** 475765 points

Hello Subin Li,

The problem is, the symptoms that we see on EVM are different, so we cannot reproduce the exact same issue, so cannot verify it.

Rgds,

Brijesh

0 subin li over 4 years ago in reply to Brijesh Jadav

Expert 1050 points

Hi, Brijesh

That means we cannot verify the solution you gave for the above problems?

0 Brijesh Jadav over 4 years ago in reply to subin li

TI__Guru**** 475765 points

Hi Subin Li,

Any idea when you are planning to get ES1.1? It would be difficult to verify without ES1.1.

Regards,

Brijesh

0 subin li over 4 years ago in reply to Brijesh Jadav

Expert 1050 points

I have no idea when to get ES1.1

0 Brijesh Jadav over 4 years ago in reply to subin li

TI__Guru**** 475765 points

Hi Subin Li,

Can you please wait for verification until ES1.1 is available?

Regards,

Brijesh

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TDA4VM: CSIRX ecc and crc error