What's New in RL-ARM Version 3.21

RL-ARM Version 3.21

• [Flash File System]
  Implemented FAT32 file system, sub-folders and long file names. Sub-folders and Long File names may be used also with FAT12 or FAT16 file system.
• [Flash File System]
  Added SD/MMC file caching to increase the speed of file write and file read. Cache buffer size is configured in File_Config.c file.
• [Flash File System]
  Added an SPI_File example for Atmel AT91SAM7X-EK evaluation board. This example is configured for AT45DB321C - 32MBit serial SPI Data Flash device from Atmel. It is located in ..\ARM\Boards\Atmel\AT91SAM7X-EK\FlashFS folder.
• [Flash File System]
  Corrected SPI configuration problems with several SPI drivers. SPI Mode is changed to Clock Polarity low (CPOL=0), and Clock Phase low (CPHA=0).
• [Flash File System]
  Corrected a problem of handling 0-size files for Embedded Flash/RAM file system. Opening a 0-size file for reading has failed. Opening a 0-size file for appending did not fail, but no data was actually written to the file.
• [Flash File System]
  Corrected: a problem in fcheck() function. This problem has reported a false error when checking SPI Flash or Parallel Flash file system.
• [Flash File System]
  Added SD/MMC file caching to increase the speed of file write and file read. Cache buffer size is configured in File_Config.c file.
• [RTX Kernel]
  Added support for Cortex-M3 RTX Event Viewer. It allows task execution and task switch monitoring in real-time.
• [RTX Kernel]
  Corrected: generation of HardFault Exception in Cortex-M library when user timers were enabled. The configuration file RTX_Conf_CM.c has been updated. Older configuration file is not compatible and need to be replaced with a new version.
• [RTX Kernel]
  Corrected: invalid return value of create task functions for Cortex-M library. Functions os_tsk_create_user() and os_tsk_create_user_ex() have returned wrong task ID value.
• [TCPnet]
  Corrected the wrong handling of TCP retransmit packets. Wrong handling could cause sporadic stalls on high traffic TCP sockets if a packet has been lost. The socket would recover after a retry-timeout of 4 seconds.