DS90UB953-Q1: DS90UB953-Q1 & DS90UB954-Q1:

chang sky

Part Number: DS90UB953-Q1

dear Sir

The current design has images and pictures, but the screen has the phenomenon of blurring. Can you help me check the design drawing?

0 chang sky over 3 years ago

0 chang sky over 3 years ago in reply to chang sky

0 Jiashow Ho over 3 years ago in reply to chang sky

Hi Chang,

Are you seeing any errors on the deserializer? First select the RX port in reg 0x4C, then read the registers below:

Register	Types of Errors	Comments
0x4D	Status	0x4D[5]: indicates CRC (BC) error detected 0x4D[2]: indicates parity (FC) error detected 0x4D[0]: indicates whether there's lock
0x4E	Status	0x4E[5]: indicates encoder error detected 0x4E[4]: indicates buffer error detected 0x4E[3]: indicates CSI error detected
0x56,0x55	Parity	0x56: upper 8 bits of parity error count 0x55: lower 8 bits of parity error count
0x7A	CSI Error	indicates various CSI errors
0x7B	CSI Error	indicates number of CSI packets with errors

I would also suggest reading reg 0x35 for CSI port PASS.

Best,

Jiashow

0 chang sky over 3 years ago in reply to Jiashow Ho

Hi Jiashow

I confirm these parameter values as attached

0X4D 43

0X4E 4

0X55 0X56 0X7A 0X7B 0

0 Jiashow Ho over 3 years ago in reply to chang sky

Hi Chang,

If there's no issues indicated from these registers, then the issue is most likely the configuration of the SoC.

Best,

Jiashow

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