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Somewhat confusingly, the TI1/TI2 fields for capture/compare channels 2
and 4 are both flipped compared to channels 1 and 3 and do not
correspond to the binary numbers.
Section 15.4.7 of RM0008 (STM32F1 series) and Section 12.4.7 of RM0368
(STM32F4 series) read:
CC1S: Capture/Compare 1 selection
01: CC1 channel is configured as input, IC1 is mapped on TI1
10: CC1 channel is configured as input, IC1 is mapped on TI2
CC2S: Capture/Compare 2 selection
01: CC2 channel is configured as input, IC2 is mapped on TI2
10: CC2 channel is configured as input, IC2 is mapped on TI1
This commit closes github issue #12 reported by GatorCh.
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Make the Doxygen comments nicer to look at. Some of the docstrings are
out-of-date since F2 support was added, so update them.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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The addition of STM32_HAVE_TIMER() allows us to avoid some
repetition. There's still an issue with names on F1 preventing us from
moving the IRQ handlers to libmaple/timer.c, but once that's resolved,
we'll be able to remove even more.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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This is a convenience function for deciding whether a timer supports a
particular capture/compare channel. It's necessary because of those
nuisance "general purpose" timers that only have a subset of the
channels.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Fix @file in many places. Also fix up the descriptions where it's
appropriate. This standardizes the @file formatting across the library
to explicitly include any parent directories up to the repository
root.
Besides being nice, this will hopefully let us manage Doxygen's XML
output so as to make extracting series-specific pieces via Breathe in
the leaflabs-docs repo possible.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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This applies to XL-density STM32F1 devices.
In stm32f1/timer.c, add timer_dev's for the new timers, using the
timer_private API. These definitions are conditionally compiled based
on the target density to avoid wasting space on smaller MCUs. Also add
calls to the appropriate timer_private.h dispatch routines within the
IRQ handlers for these timers. We need to change the IRQ handler names
to reflect this eventually, but put that off for now, as it could
break backwards compatibility in some exotic situations where the user
refers to the libmaple IRQ handlers directly.
In stm32f1/timer.h, add register map base pointers and device
declarations for the new timers. timer_dev* declarations are compiled
in only when the target MCU supports them, in keeping with the above
stm32f1/timer.c changes.
In libmaple/timer.c, update the (static) IRQ enable routines to
account for the additional timers. This adds some code that's
unnecessary on smaller STM32F1s, but it's minimal (40 extra bytes on
my machine), so portability and readability win out.
Size change, using GCC version "(Sourcery G++ Lite 2011.03-42) 4.5.2":
Before:
text data bss dec hex filename
615 0 0 615 267 build/home/mbolivar/leaf/libmaple/libmaple/timer.o
After:
text data bss dec hex filename
655 0 0 655 28f build/home/mbolivar/leaf/libmaple/libmaple/timer.o
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Comments etc.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Fix copy-paste errors in, and add missing, register bit
definitions. For copy-paste errors that would result in source
incompatibilities with past releases, add some legacy defines.
Add series header and C file for STM32F1 which fills in the missing
API. Much of the F1 timer.c would be repeated on F2, so also add
timer_private.h to hold these.
Support for timers 9 through 14 is still missing.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Fix include guard define name, update copyright, fix Doxygen @file.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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Move libmaple/*.h to (new) libmaple/include/libmaple/. The new
accepted way to include a libmaple header foo.h is with:
#include <libmaple/foo.h>
This is more polite in terms of the include namespace. It also allows
us to e.g. implement the Arduino SPI library at all (which has header
SPI.h; providing it was previously impossible on case-insensitive
filesystems due to libmaple's spi.h).
Similarly for Wirish.
The old include style (#include "header.h") is now deprecated.
libmaple/*.h:
- Change include guard #defines from _FOO_H_ to _LIBMAPLE_FOO_H_.
- Add license headers where they're missing
- Add conditional extern "C" { ... } blocks where they're missing
(they aren't always necessary, but we might was well do it against
the future, while we're at it.).
- Change includes from #include "foo.h" to #include <libmaple/foo.h>.
- Move includes after extern "C".
- Remove extra trailing newlines
Note that this doesn't include the headers under libmaple/usb/ or
libmaple/usb/usb_lib. These will get fixed later.
libmaple/*.c:
- Change includes from #include "foo.h" to #include <libmaple/foo.h>.
Makefile:
- Add I$(LIBMAPLE_PATH)/include/libmaple to GLOBAL_FLAGS. This allows
for users (including Wirish) to migrate their code, but should go
away ASAP, since it slows down compilation.
Wirish:
- Move wirish/**/*.h to (new) wirish/include/wirish/. This ignores
the USB headers, which, as usual, are getting handled after
everything else.
- Similarly generify wirish/boards/ structure. For each supported
board "foo", move wirish/boards/foo.h and wirish/boards/foo.cpp to
wirish/boards/foo/include/board/board.h and
wirish/boards/foo/board.cpp, respectively. Also remove the #ifdef
hacks around the .cpp files.
- wirish/rules.mk: put wirish/boards/foo/include in the include path
(and add wirish/boards/foo/board.cpp to the list of sources to be
compiled). This allows saying:
#include <board/board.h>
instead of the hack currently in place. We can allow the user to
override this setting later to make adding custom board definitions
easier.
- Disable -Werror in libmaple/rules.mk, as the current USB warnings
don't let the olimex_stm32_h103 board compile. We can re-enable
-Werror once we've moved the board-specific bits out of libmaple
proper.
libraries, examples:
- Update includes accordingly.
- Miscellaneous cosmetic fixups.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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