Logging Options; Os Logging Support; Debug (Serial) - VeriFone e355 User And Best Practices Manual

Logging Options

OS Logging
Support
*DEBUG (Serial) •
Logging is a powerful tool for debugging, trouble-shooting and evaluating
software. At the same time, improper use of logging mechanisms can negatively
impact performance or misdirect problem investigation.
Selective information is logged by the OS. Key logging information includes:
•
System startup and initialization.
•
Loading and running of tasks and threads.
•
System crash details.
•
Error messages.
System configuration variables *DEBUG and *LOG control the viewing of OS and
application logs.
Log data will be written to COM1 or debug port based on setting *DEBUG= 1
or 4.
•
In case of *DEBUG=1, The COM1 port will be unavailable for download or any
other purposes.
•
Hardware interrupts are disabled during transmission of each character to
serial port.
•
*LOG setting overrides *DEBUG, so make sure to remove *LOG parameter for
*DEBUG to work.
•
Connect serial cable from PC to either COM1 or debug port on dongle, and
connect dongle to e355 with switch setting UART<->USB set to UART.
•
Debug port on the dongle requires power, so connect USB power to the
dongle when you are using *DEBUG=4.
•
Open Terminal Emulation Software (TES) such as Hyper Terminal, ProComm,
or TeraTerm in PC and set baud rate and format to 115200 and 8N1.
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