During India trip, I had to eat local food, the problem was that I cannot adapt to India local food.
Summary Configure the Shared mode for Oracle connection, it failed and returned ORA-12523, found out it is mandatory to configure local listener.
Encountered SQL developer- the network adapter could not establish the connection, it is quite simple, the Oracle listener was not start up.
Summary Encountered problem cannot login Oracle by login name and password "system/oracle", resolved this issue by changed the kernal parameter kernel.sem in sysctl.conf.
How to copy out the memory data from Keil when debugging, in command window, you can use Display command fetch the memory data, example: d 0x2000293C,0x20002984 0x2000293C C8 CC 9D 5F F2 EB FA D7 - AE 26 5F 5F BA 41 7D D3 ..._.....&__.A}.