From da365c95e4460bda1f5b49a2e55ae144da1faf3f Mon Sep 17 00:00:00 2001 From: gdisirio Date: Fri, 16 Nov 2007 13:14:30 +0000 Subject: git-svn-id: svn://svn.code.sf.net/p/chibios/svn/trunk@93 35acf78f-673a-0410-8e92-d51de3d6d3f4 --- readme.txt | 15 +++++++++++++++ 1 file changed, 15 insertions(+) (limited to 'readme.txt') diff --git a/readme.txt b/readme.txt index 36255b42f..291924130 100644 --- a/readme.txt +++ b/readme.txt @@ -38,6 +38,21 @@ AVR-AT90CANx-GCC - Port on AVR AT90CAN128, not complete yet. *** Releases *** ***************************************************************************** +*** 0.4.1 *** +- Cleaned up the LPC2148 demo in main.c, it is now well documented and + explains everything, I assumed too much stuff to be "obvious". +- Included a Makefile in the LPC2148 demo that builds in THUMB mode. +- Added a spreadsheet in the documentation that describes the advantages + and disadvantages of the various optimization options (both GCC options and + ChibiOS/RT options), very interesting read IMO. No .xls available, ODF only. +- The GCC option +falign-functions=16 is now default in the Makefile, it is + required because of the MAM unit into the LPC chips, without this option + the code performance is less predictable and can change of some % points + depending on how the code is aligned in the flash memory, unpredictabilty + is bad for a RTOS. This option however increases the code size slightly + because of alignment gaps. +- Fine tuning in the scheduler code for improved performance. + *** 0.4.0 *** - NEW, added a benchmark functionality to the test suite. The benchmark measures the kernel throughput as messages per second and context switches -- cgit v1.2.3