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This brings util.h down to some bit manipulation macros, failure
routines, and asserts.
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For the changelog:
* util.h is free of __read(), __write(), etc. macros.
* systick_resume() was renamed systick_enable().
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Many of the #defines in libmaple.h were board-specific, not
MCU-specific. Most of these were only used by code under
libmaple/usb/. These were moved into usb_config.h, and are clearly
marked as being terrible hacks. I'm going to treat the USB stack as a
black box that we'll deal with later.
Further, instead of having a variety of #defines like "How many USARTS
do I have?", we decide that based on the density of the chip. This is
determined by testing for STM32_MEDIUM_DENSITY or STM32_HIGH_DENSITY
defines. libmaple currently doesn't support low-density chips, so
that suffices. The Makefile will set these automatically based on the
MCU.
Other offending #defines are ERROR_LED_PORT and ERROR_LED_PIN; these
were made optional, but they're set in the Makefile as a hack to keep
things working.
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ADC routines rewritten, support for ADC2, 3, added.
Signed-off-by: Marti Bolivar <mbolivar@leaflabs.com>
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This provides DMA, IWDG, PWR, and BKP support, and fixes several bugs.
Conflicts:
libmaple/adc.h
libmaple/libmaple.h
libmaple/ring_buffer.h
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renamed SysTick_Handler back to SysTickHandler since all of our linker magic/lanchon-stm32 depends on that name. added backup register support in order to test independent watchdog support; it seems to work. next major test target is DMA support.
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Redirect thread-mode execution to a fail routine which throbs the LED to
indicate a hard fault. Because the fail routine runs in thread mode
with interrupts on, USB auto-reset should now work. Test by executing
some bogus instruction (e.g. *(volatile int*)0xf34fdaa = 0;) and check
that the auto-reset continues to work.
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Fixed millis(), it was just wrong, before.
Added micros(), not extensively tested.
New implementation of delayMicroseconds(). Should be more consistent
now.
Added a handful of nvic routines to enable/disable interrupts.
Cleaned up systick
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Save space on debug strings, performance. Perhaps we should consider
some form of user-facing assert.
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Fixed a bug where the maximum baud rate was incorrectly set to 225000
General cleanup
Use new rcc and nvic APIs
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Relicensed the bulk of libmaple under the more permissive MIT License,
from GPLv3. Files that were largely or entirely derived from
the Arduino, STM, or Lanchon retain their original licenses.
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Removed inttypes.h from libmaple. Will have another pass through to use
the standard libmaple types, but will come in another commit.
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Conflicts:
Makefile
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copy-to-ide and Makefile updated to conform; .gitignore added;
LICENSE added
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