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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 |