Damien George cc2a35b7b2 stm32/rtc: Validate the RTC prescaler on boot and change if incorrect. ...

Devices with RTC backup-batteries have been shown (very rarely) to have
incorrect RTC prescaler values.  Such incorrect values mean the RTC counts
fast or slow, and will be wrong forever if the power/backup-battery is
always present.

This commit detects such a state at start up (hard reset) and corrects it
by reconfiguring the RTC prescaler values.

Signed-off-by: Damien George <damien@micropython.org>

2020-11-13 11:23:52 +11:00

..

bare-arm

ports: Disable MICROPY_PY_ASSIGN_EXPR in bare-arm and minimal ports.

2020-06-16 22:06:21 +10:00

cc3200

ports: Add utime.gmtime() function.

2020-09-18 16:25:36 +10:00

esp32

esp32/machine_pin: Reset pin if init sets mode.

2020-11-12 15:27:41 +11:00

esp8266

esp8266/mpconfigport.h: Seed the urandom module on import.

2020-10-29 14:12:44 +11:00

javascript

all: Format code to add space after C++-style comment start.

2020-04-23 11:24:25 +10:00

mimxrt

ports: Use correct in/out endpoint size in TUD_CDC_DESCRIPTOR.

2020-10-17 15:49:16 +11:00

minimal

ports: Disable MICROPY_PY_ASSIGN_EXPR in bare-arm and minimal ports.

2020-06-16 22:06:21 +10:00

nrf

ports: Use correct in/out endpoint size in TUD_CDC_DESCRIPTOR.

2020-10-17 15:49:16 +11:00

pic16bit

all: Format code to add space after C++-style comment start.

2020-04-23 11:24:25 +10:00

powerpc

powerpc/uart: Choose which UART to use at build time, not runtime.

2020-05-29 22:54:55 +10:00

qemu-arm

qemu-arm/Makefile: Add CFLAGS_EXTRA to CFLAGS.

2020-06-22 13:42:24 +10:00

samd

ports: Use correct in/out endpoint size in TUD_CDC_DESCRIPTOR.

2020-10-17 15:49:16 +11:00

stm32

stm32/rtc: Validate the RTC prescaler on boot and change if incorrect.

2020-11-13 11:23:52 +11:00

teensy

all: Update Python code to conform to latest black formatting.

2020-08-29 15:18:01 +10:00

unix

extmod/machine_mem: Only allow integers in machine.memX subscript.

2020-11-13 11:13:37 +11:00

windows

unix,windows: Implement mp_hal_time_ns using gettimeofday.

2020-10-01 14:20:42 +10:00

zephyr

ports: Support legacy soft I2C/SPI construction via id=-1 arg.

2020-10-01 12:57:10 +10:00