Part Number: DS90UB964-Q1
I am debug-ing DS90UB964 and DS90UB913 control channel.
the current condition：
1)Less than 20% probability to correctly write 913 registers
2)964‘s status reg have error.
0x4D's val is:0x33/0x51(two board have diff val)
0x4E's val is:0xe5
3)try digital reset,but i could not see 0x01 reg's reset bit self clean
write_reg(0x01, 0x01)-----could not see the val become 0 again
Please help to see this issue,thank you very much.
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In reply to Palaniappan Manickam:
Thanks for reply.
UB964 is the I2C master, and UB913 is on the remote side. Host(a arm soc) can communicate to UB964.
I found when enable "I2C Pass-Through All Transactions ", and set the I2C address to the true UB913 address(not the alias id).CPU can successfully communicate with UB913.
But,0x4D/0x4E reg stil show errors:
0x4D's val is 0x33
0x4E's val is 0xe5
In reply to user5344592:
In reply to Junqiang Shi:
This design is also from TI Design Guide.(TIDA-01323_Camera_SCH.pdf)
In addition, I found that setting AEQ_1ST_LOCK_MODE to 1 improved the loss of LOCK,
So I want to know that can we correct the lose LOCK problem by setting some registers?
Found yesterday,After setting FPD3_MODE to RAW10, the lost lock problem is gone(Our camera is RAW10 mode). Does this setting will affect LOCK or BCC_CRC?
not, if the link is reliable. the work mode would impact the line rate. if the line rate is decreased, the system margin would be improved, which is helpful for the unlocked issue.
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