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86aa16bea6
circuitpython/stmhal/boards
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T S 86aa16bea6 stmhal: Implement delayed RTC initialization with LSI fallback. 
If RTC is already running at boot then it's left alone.  Otherwise, RTC is
started at boot but startup function returns straight away.  RTC startup
is then finished the first time it is used.  Fallback to LSI if LSE fails
to start in a certain time.

Also included:
 MICROPY_HW_CLK_LAST_FREQ
        hold pyb.freq() parameters in RTC backup reg
 MICROPY_HW_RTC_USE_US
        option to present datetime sub-seconds in microseconds
 MICROPY_HW_RTC_USE_CALOUT
        option to enable RTC calibration output

CLK_LAST_FREQ and RTC_USE_CALOUT are enabled for PYBv1.0.
2015-11-23 23:23:07 +00:00
..
CERB40 stmhal: Use CMSIS_MCU definition from mpconfigboard.mk 2015-08-07 08:54:14 +01:00
ESPRUINO_PICO stmhal: Use CMSIS_MCU definition from mpconfigboard.mk 2015-08-07 08:54:14 +01:00
HYDRABUS stmhal: Use CMSIS_MCU definition from mpconfigboard.mk 2015-08-07 08:54:14 +01:00
NETDUINO_PLUS_2 stmhal: Use CMSIS_MCU definition from mpconfigboard.mk 2015-08-07 08:54:14 +01:00
PYBV3 stmhal: Update PYBv3 and PYBv4 pin defs to include MMA pins, and others. 2015-10-31 11:14:15 +00:00
PYBV4 stmhal: Update PYBv3 and PYBv4 pin defs to include MMA pins, and others. 2015-10-31 11:14:15 +00:00
PYBV10 stmhal: Implement delayed RTC initialization with LSI fallback. 2015-11-23 23:23:07 +00:00
STM32F4DISC stmhal: Use CMSIS_MCU definition from mpconfigboard.mk 2015-08-07 08:54:14 +01:00
STM32F7DISC stmhal: Enable sdcard on STM32F7DISC board. 2015-10-30 12:05:14 +00:00
STM32F411DISC stmhal: Add support for STM32F411 Discovery Board (STM32F411E-DISCO). 2015-08-29 22:50:58 +01:00
make-pins.py stmhal: Add support for USART1 and conditional pins in make-pins.py. 2015-08-03 00:23:47 +01:00
stm32f4xx_prefix.c all: Add py/mphal.h and use it in all ports. 2015-10-31 19:14:30 +03:00
stm32f401_af.csv stmhal: Provide ADC capabilities for F401 and F411 MCUs. 2015-04-18 22:39:06 +01:00
stm32f401.ld stmhal: Add stm32f401.ld for linking F401 targets. 2015-04-18 21:40:59 +01:00
stm32f405_af.csv stmhal: Rename stm32f4xx_af.csv to stm32f405_af.csv. 2015-04-18 21:40:59 +01:00
stm32f405.ld stmhal: Make ld and af files configurable within Makefile. 2015-04-18 21:40:59 +01:00
stm32f411_af.csv stmhal: Fixed some typos in stm32f411_af.csv. 2015-08-17 16:51:19 +01:00
stm32f411.ld stmhal: Add support for STM32F411 MCU. 2015-04-18 22:15:59 +01:00
stm32f746_af.csv stmhal: Add STM32F7DISC and associated changes. 2015-07-30 00:38:32 +01:00
stm32f746.ld stmhal: Add STM32F7 support for USB serial and storage. 2015-08-03 00:39:27 +01:00