Overview
========
The log Demo application demonstrates to prompt LOG with level by commands.
Note: Please input one character at a time. If you input too many characters each time, the receiver may overflow
because the low level UART uses simple polling way for receiving. If you want to try inputting many characters each time,
just define DEBUG_CONSOLE_TRANSFER_NON_BLOCKING in your project to use the advanced debug console utility.
Besides, the demo does not support semihosting mode. The log demo is based on shell, debug console and
serial manager. When semihosting is used, debug console and serial manager are bypassed. So the log demo cannot
work with semihosting.
Toolchain supported
===================
- Keil MDK 5.36
- IAR embedded Workbench 9.20.2
- GCC ARM Embedded 10.3.1
- MCUXpresso 11.5.0
Hardware requirements
=====================
- Mini USB cable
- LPCXpresso55s69 board
- Personal Computer
Board settings
==============
No special settings are required.
Prepare the Demo
================
Note: MCUXpresso IDE project default debug console is semihost
1. Connect a USB cable between the host PC and the USB port on the target board.
2. Open a serial terminal with the following settings:
- 115200 baud rate
- 8 data bits
- No parity
- One stop bit
- No flow control
3. Download the program to the target board.
4. Either press the reset button on your board or launch the debugger in your IDE to begin running the demo.
Running the demo
================
When the example runs successfully, the following message is displayed in the terminal:
~~~~~~~~~~~~~~~~~~~~~
SHELL build: Sep 27 2020
Copyright 2020 NXP
LOG SHELL>> installbackend debugconsole
LOG SHELL>> log error
22350: ERROR log_main.c:104:This is "error" log message
LOG SHELL>> log fatal
27900: FATAL log_main.c:100:This is "fatal" log message
LOG SHELL>> log warning
35430: WARN log_main.c:108:This is "warning" log message
LOG SHELL>> log info
38585: INFO log_main.c:112:This is "info" log message
LOG SHELL>> log debug
41330: DEBUG log_main.c:116:This is "debug" log message
LOG SHELL>> log trace
45090: TRACE log_main.c:120:This is "trace" log message
LOG SHELL>> log test
49835: ERROR log_main.c:124:The input arguement "test" is not valid
LOG SHELL>> uninstallbackend debugconsole
LOG SHELL>>
~~~~~~~~~~~~~~~~~~~~~
Note: The shell information "SHELL build: Sep 27 2020" may be different, which depends on the compile date.
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