Freescale MQX™ RTOS 3.6.2 Release Notes

o Compiling MCF5xxx FEC code generates error message if un-cached memory
support is disabled in MQX configuration.
- MFS Filesystem:
o The CLUSTER_SIZE_BYTES member of MFS_DRIVE_STRUCT is now extended to
32 bit to avoid size overflow in case of 65k cluster size (solves some USB memory
stick problems).
o Hidden attribute checking was fixed in MFS_Attribute_match() function.
o MFS write/append performance problem was solved by avoiding unnecessary sector
reading.
- SHELL Library:
o Memory violation error fixed in the shell “help” command implementation.
- USB Host Stack:
o USB Host HUB class enhanced to support asynchronous status inquires.
o USB CDC Host driver now waits for control transactions to ACM interface to
complete. This fixes a problem of invalid memory access with some CDC devices.
o KHCI USB bus control is deactivated after device is detached. This avoids problems
where noise on detached bus was evaluated as a valid communication.
o KHCI USB data bus weak pull-down resistors enabled to improve detection of
reset/detach event.
o EHCI fixed to toggle data tokens correctly when a transfer has odd number of
transactions.
- Example applications:
o Digital sign demo running on TWR-MPC5125 now runs the display task with higher
priority than the network task. This fixes a problem where images were displayed
after 3 minutes ARP timeout when board was not connected to network.
o Bar-graph CGI code in HTTP Server demo now reads ADC channels properly.
o msCAN example application fixed on TWR-MPC5125.
- Task Aware Debugger plug-in for CodeWarrior
- Other:
o The value of SR register is now displayed correctly in context of any tasks being
examined.
o New Version Checker tool was fixed so it always runs in a single instance. Each of
the TAD DLLs (current version and all backward-compatibility versions) starts an
instance of the web checker tool upon CodeWarrior start. Running the tool in multiple
instances was causing problems with loading the webchk.wcp configuration file or
resulted in multiple “New Version Available” notifications being displayed.
Version 3.6.1 (Aug 31 st 2010)
- MCF51MM-based TWR-MCF51MM Board Support Package was added
o Standard set of peripheral drivers is enabled: FLASHX, GPIO, I2C, INT_CTRL,
UART, SPI, RTC, CF card, ADC, DAC, SD card
o New driver was added: DAC (API driver).
Freescale MQX Release Notes
38 Freescale Semiconductor