Read/Write a CAN enabled ECU with RomRaider

pirelli2006 · **Joined:** Tue Apr 03, 2018 6:56 am **Posts:** 124

when i want read from ecu:

Code:

java.io.FileNotFoundException: null\16GW9B_read.bin (Системе не удается найти указанный путь)
        at java.io.FileOutputStream.open0(Native Method)
        at java.io.FileOutputStream.open(Unknown Source)
        at java.io.FileOutputStream.<init>(Unknown Source)
        at java.io.FileOutputStream.<init>(Unknown Source)
        at com.romraider.io.j2534.api.TestJ2534NCS.<init>(Unknown Source)
        at com.romraider.io.j2534.api.TestJ2534NCS.main(Unknown Source)
Ending session: 000007E01081
End session ACK: 000007E85081

What is it? What is this error. How fix it. I can't read any cars.

dschultz · **Posted:** Mon Dec 13, 2021 9:33 am

The file is saved in the directory starting with System.getenv("HOME").
It seems you have no "HOME" environment variable, set one first then run the read command.

pirelli2006 · **Joined:** Tue Apr 03, 2018 6:56 am **Posts:** 124

Thanks for your understanding and your time, I tried everything I knew, even tried to find something on the Internet. I do not understand how to set this home folder. Even studied your code, but to no avail. Tell me what needs to be done. I can't figure it out myself. I tried it on different computers, but I'm doing something wrong. I installed the program, launched it, then the logger and added xml, chose CAN nsc. Looked at settings.xml in .Romraider.

dschultz · **Posted:** Mon Dec 13, 2021 9:29 pm

In the command window type:

Code:

set HOME=<some_existing_directory_where_you_want_the_file_saved>

example: set HOME=C:\temp

now run the read command.

pirelli2006 · **Joined:** Tue Apr 03, 2018 6:56 am **Posts:** 124

Thank you so much for your help and your hard work. Set home worked when I selected an existing folder. The program does not create folders.

dschultz · **Posted:** Tue Dec 14, 2021 9:24 am

pirelli2006 wrote:

The program does not create folders.

Correct. It relies on environment variables. What OS are you using that doesn't specific a user home directory in the environment?

pirelli2006 · **Joined:** Tue Apr 03, 2018 6:56 am **Posts:** 124

windows 10 64bit

dschultz · **Posted:** Tue Dec 14, 2021 6:38 pm

Is HOME a different environment variable name in your Locale?

For me it is:
HOME=C:\Users\Dale

shawn72 · **Joined:** Thu Oct 01, 2020 8:07 am **Posts:** 8

ive been trying to read a CAN ecu with romraider as described but im not getting correct results, could someone look at the log and downloaded file and advice me

dschultz · **Posted:** Sun Jul 03, 2022 8:49 am

In your RomRaider install directory there is a log4J.properties file. It may be in the lib\ sub-directory.
Open the file in a text editor and change the log level on the first line to:
log4j.rootLogger=trace, stdout, file

Save the file and then try your read command again.
The output will contain the lower level Openport 2 read/write commands.
Post that, it may give a hint as to why it is not reading.

shawn72 · **Joined:** Thu Oct 01, 2020 8:07 am **Posts:** 8

log after change attached

dschultz · **Posted:** Mon Jul 04, 2022 8:44 pm

The ECU is reporting 7F2322, a NACK (7F) to read (23) with code 22 (conditionsNotCorrect or requestSequenceError).
I'm not sure why as the other commands seem to report as expected.

pirelli2006 · **Joined:** Tue Apr 03, 2018 6:56 am **Posts:** 124

for this car, reading the full firmware is impossible without a code patch.

shawn72 · **Joined:** Thu Oct 01, 2020 8:07 am **Posts:** 8

pirelli2006 wrote:

for this car, reading the full firmware is impossible without a code patch.

can you do this?

dschultz · **Posted:** Tue Jul 05, 2022 9:19 pm

Is it possible to read starting at 0x8200 ?

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Read/Write a CAN enabled ECU with RomRaider

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