diff options
| author | NIIBE Yutaka <gniibe@fsij.org> | 2016-04-18 11:46:14 +0900 |
|---|---|---|
| committer | NIIBE Yutaka <gniibe@fsij.org> | 2016-04-18 11:46:14 +0900 |
| commit | 82749ab97af6ec1de605f0638d44999c3b50eadf (patch) | |
| tree | 214b4b33294e68d8f1853553f93f74b232a961d5 /NEWS | |
| parent | 92e17d3bdf2371031967f949659edb91b72fb63f (diff) | |
Add support for FS-BB48
Diffstat (limited to 'NEWS')
| -rw-r--r-- | NEWS | 17 |
1 files changed, 17 insertions, 0 deletions
@@ -1,6 +1,23 @@ NEWS - Noteworthy changes +* Major changes in Chopstx 0.11 + + Released 2016-0X-XX + +** FS-BB48: Kinetis L MCU +Support for FS-BB48 board with Kinetis L MCU is added. + +** No HardFault at context switch on Cortex-M0 +By its design, Chopstx does context switch hodling scheduler lock. +This is implemented with the feature of BASEPRI on Cortex-M3. Because +Cortex-M0 doesn't have support of BASEPRI, the context switch (before +version 0.11) always caused HardFault exception. Since Cortex-M0 +doesn't have complex exception mechism of ICI/IT (which is supported +on Cortex-M3), it is actually possible to implement the context switch +in user mode. This is done. + + * Major changes in Chopstx 0.10 Released 2015-09-15 |