DS90UB913A-Q1: I2C Reverse channel update the camera firmware Failed

user4370495

Part Number: DS90UB913A-Q1

Dear TI :

I use DS90UB913A-Q1 I2C Reverse channel update the camera firmware, But it always failed. (Freq=360K) .
The solution is OV10640 + OV490 + DS90UB913, ds90ub913 use PCLK mode.

After power-on, I will make the following settings to open the I2C channel. Then use the OV upgrade software to operate. Some cameras have been upgraded and failed.

Please help me analyze if I2C has other settings.

0xC0 0x07 0xB0

0xC0 0x08 0x48

0xC0 0x10 0x48

0xB0 0x11 0x0E

0xB0 0x12 0x1A

0xB0 0x14 0x02

over 6 years ago

0 user4370495 over 6 years ago

Expert 1155 points

Dear TI :

I prepare 30 samples to test. But found 5-6 pcs can't update the camera firmware.(speed rate about 300K)
i reduce the i2c speed rate to 200k/100k/75k ,But the situation can't changed.
thanks .

0 Charley Cai over 6 years ago in reply to user4370495

TI__Genius 12866 points

Can you try to set SCL High Time and SCL Low Time register in both serializer and deserializer to 0x32. This should net you about 400k I2C rate

Best Regards,
Charley Cai

0 user4370495 over 6 years ago in reply to Charley Cai

Expert 1155 points

i have tried .but have no change.

0 Mostafa Shuva over 6 years ago in reply to user4370495

TI__Intellectual 1930 points

Can you do a swap of the 913A parts? Since you have 5-6 parts that failed, it would be good to verify if the issue still occurs when you swap a good and bad part.

Also, how are the different chips connected? Is it on a PCB with traces connecting them, or wires, etc.

0 user4370495 over 6 years ago in reply to Mostafa Shuva

Expert 1155 points

Coax table . DS90UB913A-Q1 is ok. I double maybe the error setting in the register. Thanks

0 Mostafa Shuva over 6 years ago in reply to user4370495

TI__Intellectual 1930 points

Hello,

Were you able to resolve this issue?

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DS90UB913A-Q1: I2C Reverse channel update the camera firmware Failed