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diff --git a/nuttx/ReleaseNotes b/nuttx/ReleaseNotes index 67bfabcc4..3fdc9e7c3 100644 --- a/nuttx/ReleaseNotes +++ b/nuttx/ReleaseNotes @@ -2226,3 +2226,73 @@ below: both developed and submitted by Li Zhouy (Lzzy)). See the Changelog for additional changes included in this release. + +NuttX-6.9 +^^^^^^^^^ + +The 76th release of NuttX, Version 6.8, was made on September 11, 2011 +and is available for download from the SourceForge website. Note +that release consists of two tarballs: nuttx-6.9.tar.gz and +apps-6.9.tar.gz. Both may be needed (see the top-level nuttx/README.txt +file for build information). + +This release includes a few new features and several important bug fixes. +The new features (some still incomplete) include: + + * Analog Support/ NXP LPC17xx: New DAC sub-system including ADC and DAC + drivers for the LPC17xx. Extensions to the ADS1255 driver. + (Contributed by Li Zhuoyi (Lzyy)) + + * Power Management: Added a new NuttX power management sub-system for + controlling and coordinating reduced power states. At present, only + verified in a simulation environment. + + * I2C Test Tool: A new application was added that can be used to + verify and debug I2C interfaces from the NuttShell (NSH) command + line. + + * NuttShell (NSH): In addition to the I2C test tool, a date command + is now supported (if CONFIG_RTC is defined) that can be used to + read and set the RTC. + + * NXP LPC17xx: I2C and DAC driver for the NXP LPC17xx family submitted by Li Zhuoyi + (Lzyy) + + * Kinetis Cortex-M4: Added a SDHC driver for the Kinetis parts. + Complete debug of the Kinetis SDHC driver was not completed, however, + do to some higher priority tasks that forced me to stop work. + + * Other new drivers: Driver for I2C-based at24cxx EEPROM submitted by + Li Zhuoyi (Lzyy); Driver for the LM-75 temperature sensor. Support + for the LM-75 temperature sensor integrated into the SM3210E-EVAL + development board. + + * NuttX Graphics (NX): Added new NX interfaces for drawing circles, + both circle outlines and filled circles. + + * FLASH: Added a function that accepts the path to a block driver and + then erases the underlying FLASH memory + + * Build System: The Make export logic now also tries to track down all + architecture-specific header files and include these in the NuttX + export bundle as well. Various changes and modifications so that + NuttX wil build on FreeBSD using the ASH shell (submitted by Kurt Lidl). + +Bugfixes, order roughly on decreasing criticality include: + + * STM32 I2C Driver: Add resets, timeout, and other fixes to work + reliably with the I2C tool. Corrected a major error introduced in + NuttX 6.8. + + * BCH Driver. Several important bugs (noted by Li Zhuoyi (Lzyy)) + were fixed. + + * C Library: Fixed errors in gmtime() and gmtime_r() that could lead to + errors in date calculations. + + * Timing: Correct an error in the tv_nsec calculation that happens + only config CONFIG_RTC is enabled + + * Build System: Use of -print-libgcc-file-name to get path to + libgcc.a might select the wrong libgcc.a if a multilib toolchain + is used |