| NuttX-6.16 |
| ---------- |
| |
| The 83rd release of NuttX, Version 6.16, was made on March 10, 2012, |
| and is available for download from the SourceForge website. Note |
| that release consists of two tarballs: nuttx-6.16.tar.gz and |
| apps-6.16.tar.gz. Both may be needed (see the top-level nuttx/README.txt |
| file for build information). |
| |
| This release corresponds with SVN release number: r4475 |
| |
| New features and extended functionality: |
| |
| * ARMv7M Support: Includes new, streamlined Cortex-M exception |
| handling provided by Mike Smith. Context switching support for the |
| Cortex-M4 FPU registers is now provided (in both "lazy" and "non-lazy" |
| modes) |
| |
| * General Drivers: Added a generic "upper half" Quadrature Encoder driver. |
| The USB CDC/ACM serial driver can now be dynamically connected or |
| disconnected from the host (programmatically or using NSH commands). |
| |
| * STM32 Drivers: Added a "lower half" Quadrature Encoder driver. |
| Verified the STM32 F4 DMA driver; Added F4 DMA support to the existing |
| STM32 SDIO driver. |
| |
| * STM32 Board Support. Added support for the STM32 F2 family and |
| for the STM3220G-EVAL board (contributed by Gary Teravskis). |
| Support is now included for C++ static constructors (verified using |
| the Atollic toolchain). Added support for the SRAM available on the |
| STM3240G-EVAL board. |
| |
| * PIC32 Drivers. PIC32MX USB (device) driver is now functional. |
| The PIC32MX Ethernet driver not yet fully verified (and an |
| unverified SPI driver is also available). |
| |
| * Networking. Added a lower-level, thread-independent socket layer. |
| Parts of this layer were created in 6.15 to support the FTPD |
| controlling terminal; this support has been extended in order |
| to support an NFS file system (not yet released). |
| |
| * NuttShell (NSH). NSH will now support a USB serial connection for |
| the console (such as CDC/ACM). This is useful in environments |
| where there is no physical serial port on the board. |
| |
| * Build System. Reorgnaization of networking header files. |
| |
| Critical Bugfixes. The following bug fixes are considered critical: |
| |
| * Networking: Fixed a "leak" in the TCP/IP read-ahead buffering logic. |
| Corrected an error in TCP/IP sequence numbering/ACK logic which |
| occurred when read-ahead buffering memory is exhausted. |
| |
| * STM32 Drivers: Fixed an buffer sizing error in the STM32 Ethernet |
| driver. |
| |
| Additional Bugfixes: Other important bug fixes are listed below. See |
| the ChangeLog of a complete, detailed list of bug fixes. |
| |
| * Networking: Corrected recv()/recvfrom() return value. Added logic to |
| monitor for loss of connection after a new connection has been |
| established via accept() (Contributed by Max Nekludov). Add |
| logic to select() to correctly handle POLLHUP (Contributed by Max |
| Nekludov) |
| |
| Additional bugfixes, name changes, and other differences as detailed in the |
| ChangeLog. |
