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Commit Graph

5 Commits

Author SHA1 Message Date
peabody124
1086a6b567 Flight: Changes to STM library to work with our code. Basically all the
configuration structures are const which keeps them in flash instead of ram.
However the library needs to declare them const for the compiler to work.

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@2231 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-12-13 07:03:28 +00:00
peabody124
18858571ce Flight: Updated to the latest StdPeriph libraries
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@2230 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-12-13 07:03:24 +00:00
stac
b6c1f43145 i2c: Change API to allow passing const config data
Mark the I2C_InitStruct parameter as const so that we can pass
const data as the initializer.

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@1240 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-08-08 04:14:58 +00:00
stac
02e0017cbb stm32 lib: declare read-only parameters as const
Many of the STM32 library functions take a pointer to an
initialization structure.  In nearly every case, this struct
is a read-only (ie. const) parameter.

It is advantageous (and good coding practice) to actually declare
read-only data as const so that the compiler can place the const data
in the .rodata section which resides in flash and doesn't consume any
RAM.  This has the added bonus advantage that it is impossible for the
running application to corrupt the read-only data.

In order to allow passing pointers to const data into the library
functions, it is essential that the function prototypes also declare
their associated read-only parameters as const.  This commit adds
the const attribute to those parameters that are actually read-only.

git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@758 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-06-13 04:23:15 +00:00
gussy
df6b2e4ddc Moved STM32 specific PiOS Libraries.
git-svn-id: svn://svn.openpilot.org/OpenPilot/trunk@240 ebee16cc-31ac-478f-84a7-5cbb03baadba
2010-03-04 06:14:14 +00:00