32 lines
1.3 KiB
Plaintext
32 lines
1.3 KiB
Plaintext
NuttX-0.4.13
|
|
------------
|
|
|
|
This is the 45th release of NuttX. The release extends the support
|
|
for the STMicro STM32 microcontroller. Minimal 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
|