Quelltext der Seite Lauterbach ICD for i.MX53

The Lauterbach In-Circuit-Debugger supports Bluetechnix i.MX53 modules and boards.

Web site: https://www.lauterbach.com

== Demonstration files ==

can be downloaded from our FTP server: [https://support.becom-group.com/releases/imx/mx53/config/lauterbach-cmimx53-demofiles.zip Link]


This contains several Trace32 batch files (*.cmm):
* ''demo.cmm:'' Based on Freescale Quick Start Board example
* ''ddrstresstest.cmm:'' DDR Stress test, including DDR2 configuration sequence
* ''u-boot.cmm:'' Load/attach to U-Boot and debug it
* ''linux.cmm:'' Load U-Boot, Linux kernel, with Lauterbach Linux Awareness
* ''linux-app-debug.cmm:'' Load U-Boot, Linux kernel, debug an application

== Impressions ==

The Lauterbach ICD and the TRACE32 software supports Linux kernel awareness, and hence lets you debug
*Linux kernel
*Linux kernel modules
*Linux user space applications


Here are some debugging impressions with Lauterbach JTAG Debugger and CM-i.MX53, debugging Linux:

=== Linux kernel debugging ===

[[Image:1-kernel started and halted.png|left|500px|Kernel started and halted]]

Using linux.cmm batch file


The Linux kernel boots to the login prompt, then the debugger halts it.


B::Data.List is the code window, showing mixed C and assembly code from Linux's process.c file.

B::TASK.DTask shows a list of all Linux tasks.

B::var.frame shows stack frames.

B::TASK.Process shows Linux userspace processes.

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=== Linux kernel module debugging ===
[[Image:2-module loaded.png|500px|left|Kernel module loaded]]

A kernel module (ism_mt9m025_camera) was loaded with the Linux Shell.


B::TASK.MODule shows a list of loaded kernel modules.

B::List shows the code of the module as it is loaded into RAM.
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[[Image:3-breakpoint-in-module.png|500px|left|Breakpoint in kernel module]]

A breakpoint in the kernel module is set and hit.


B::sYmbol.Browse is the symbol browser and lets you find the function mt9m024_init_mode().

B::Break.List shows the breakpoints list.

B::Var.REF shows current variables in this function after hitting the breakpoint.

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=== Linux application debugging ===
[[Image:4-linuxapp-debugging.png|500px|left|Linux application debugging]]


Using linux-app-debug.cmm batch file (and app_debug.cmm script)


Debugger is prepared for process start; process is started in terminal. Debugger detects process start and automatically halts in main().


B::Data.List shows application's code.

B::TASK.Process shows processes - ''hello'' is current.


[[Category:I.MX53]]