Prep for 0.4.13 releasenuttx-4.13

git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@2225 42af7a65-404d-4744-a932-0658087f49c3

1 files changed, 26 insertions, 0 deletions

diff --git a/nuttx/ReleaseNotes b/nuttx/ReleaseNotes
index 83bf45735..9e1e920df 100644
--- a/nuttx/ReleaseNotes
+++ b/nuttx/ReleaseNotes
@@ -1003,3 +1003,29 @@ in this 0.4.12 release, but is not yet tested.
 
 This tarball contains a complete CVS snapshot from October 17, 2009
 
+nuttx-0.4.13
+^^^^^^^^^^^^
+
+This is the 45th release of NuttX.  The release extends the support for the STMicro
+STM32 microcontroller.  Minimul support for the STM3210E-EVAL development board based
+around the STM32F103ZET6 MCU was released in NuttX-0.4.12.  This release adds:
+
+	* A simple interface definition to support some FLASH, EEPROM, NVRAM, etc. devices.
+	* Verified SPI operation using driver for SPI based FLASH parts M25P64 and M25P128.
+	* Improved Cortex-M3 context switching.  This should improve context switching
+	  performance be 2x in certain cases.
+	* Added a USB device-side driver for the STM32.  This is an early release of a
+	  very complex driver; some bugs are expected.  
+	* The USB driver has been verified against the USB serial device class driver.
+	  There is at least one known outstanding issue (see the full bug description in
+	  the TODO list).
+
+This release also corrects some important bugs in the early STM32 release:
+
+	* Fixed several errors the prevented operation of NuttX on an STM32 development
+	  board using USART2 as the serial console.
+	* Fixed and optimization-dependent race condition in the clock initialization.
+	* Fixed a critical bug in the interrupt control logic that could cause interrupt
+	  operations to failed used for interrupts in a certain range.
+
+This tarball contains a complete CVS snapshot from November 4, 2009