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Freescale MQX Release Notes

28 Freescale Semiconductor

6 Change Log

Version 3.0.0 (December 5

2008)

‐ This is initial release supporting the MCF52259 processor, M52259EVB and M52259DEMO

boards.

Version 3.0.1 (January 22

2009)

‐ Small enhancements throughout the whole code base of MQX kernel and other components

o Memory block “type” information added to all system memory allocations. TAD is now

able to give detailed information about each memory block allocated by kernel or

system component.

o Dedicated memory allocation routines in RTCS, MFS and USB simplify the memory

pool usage.

‐ IPCFG ethernet link monitoring features and automatic IP address binding functionality was

added to RTCS. The “ipconfig” shell command replaces the old “bind”, “ifbind” and “dhcp”

shell commands.

‐ The HTTP server in RTCS was re-written to enable multiple sessions to be served by a

single task. This feature brings more reliable HTTP server while maintaining low memory

requirements.

‐ USB Host HUB class was added.

‐ MQX User Guide and several other documents are included in the setup package.

Version 3.1.0 (April 3

2009)

‐ USB Device low-level driver has been implemented for MCF522xx family and example

applications were created for M52259EVB and M52223EVB.

‐ The “usb” subdirectory of the /lib output folder was split to “host” and “device” parts.

‐ Added PSP, BSPs and other support files for MCF52223 and MCF52235 evaluation boards:

o USB Host and Device libraries were ported to M52223EVB

o RTCS library was ported to M52235EVB

o MFS and Shell libraries ported to both new boards

‐ USB Host HUB issue resolved with MCF52259 (excessive number of errors observed when

USB devices were accessed through USB HUB). The issue was solved by implementation of

SOF frame scheduler in the USB Host low-level driver. An issue with a similar impact

remains on MCF5222x implementation (silicon problem, no workaround known).

‐ Error codes naming and numbering convention has been made more consistent across the

MQX, RTCS and other libraries. Old error code names remain implemented for backward

compatibility (numeric values changed).

‐ Kernel Data and other internal structures were optimized for size. Parts of the structures

were made conditionally compiled based on the user configuration.

‐ TAD (CodeWarrior debugger plugin) was updated to handle renaming in internal structures.

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ADC Release 3.1 Manual de usuario Pagina 30