XCP-Download command problem about pyxcp HOT 13 OPEN

Without context information, I would guess a side-effect of an UNLOCK operation?
Could you post the pyXCP code sequence your are using and most important, the CANape trace, esp. during setup?

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Here is pictures of Python code and CANape trace window. Please give me your point if view.

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You should also capture the CANape connection part

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Here is XCP trace (received messages from slave marked yellow), Python Code, and address in A2L file where I want to write a value.

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The excel trace does not contain the TX messages were the XCP commands are sent. Please provide a complete trace recorded when CANape is doing the connect and download

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Honestly, I don't know why you are completly bypassing pyXCP...
Are you sure this is a CANape trace?
One would expect CANape issuing GET_STATUS, GET_COMM_MODE_INFO, GET_ID commands after CONNECT.

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Sorry for misunderstanding, trace file which I sent is trace according to Python Code. Now, I am sending trace files from CANape. Commands are in Trace2 file and marked yellow.

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Trace 1 starts after CANape has established the XCP connection

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Yes, but this trace is from beginning, I don't know why skiped CONNECT command.

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it is possible that CANape is connecting with mode != 0

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Let's focus please on Python code and DOWNLOAD command problem with error "FE 23"-memory location is protected to write. I found in XCP documentation that parameter which you want to change, first of all, needs to be moved from Flash to RAM, but I am not sure how to do this.
Have you any idea?

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The movement is usually done with SET_CAL_PAGE. In the first step you should consult your A2L (if available),
MOD_PAR/MEMORY_SEGMENTs, maybe your address is pageable to RAM.
Optional commands GET_PAG_PROCESSOR_INFO, GET_SEGMENT_INFO, and GET_PAGE_INFO may also helpful.

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I resolved problem with command "SET_CAL_PAGE".
Thank you for your support!

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