Spinning while polling is overly CPU intensive, and inconsistent with
the current blocking behaviour of UARTSerial.
Change to use Thread::wait(1) to match UARTSerial.
When the RTOS is present and the tickless mode is not implemented, it is
expected that the next tick issued by the Systick timer will wake up the MCU.
However nothing prevents an implementation of the ARM architecture to gate the
systick clock signal upon sleep entry.
Therefore on those targets sleep shall be prohibited if the RTOS is present and the
tickless mode is not implemented.
To ease life of porters , a new option has been added in the device add list:
STCLK_OF_DURING_SLEEP. This option expose that the target turn of the systick
clock during sleep.
Targets which exhibit such behavior shall add this define in their device_has list.
GCC's newlib library depends on fstat to get in-flight information about
a file's type an size. A working fstat for regular files is needed for
seek and related functions to work correctly.
Add _lock_count to DeepSleepLock and use this to prevent deep sleep
from staying locked when the DeepSleepLock objected is destroyed after
an unbalanced number of calls to lock and unlock.
Update platform code to use the ticker common layer rather than using
HAL us ticker directly. This both ensures that the underlying ticker
is properly initialized and that the value read is in microseconds with
full 32-bit range.
Fixed by zeroing the memory. A more "c++ correct" approach
may be to add an additional op for equality, and use the "=="
operator on the F type in the generate function. But this adds
the requirement that F supports equality.
This change prevents inclusion of non throwing versions of the new operator from
the compiler standard library. On GCC, the non throwing version bring with it
some portion of the exception support code.
Sleep manager provides API to lock/unlock deepsleep. This API allows a user to
control deep sleep.
This API should be done via atomic operations (to be IRQ/thread safe).
Fix a calculation error in in powerdown_nvic preventing the last
group of 32 interrupts from getting powered down. The ARMv7m reference
manual states "the total number of interrupt lines is up
to (32*(INTLINESNUM+1)).".
Also rename isr_count to isr_groups_32 for clarity, since this is
actually the number of 32 interrupt groups.
- Removed the patterned LED sequence, all boards now use the 4 fast pulse, 4 slow pulses LED sequence.
- Changed the LED used from LED_RED to LED1. Only 58/174 targets seem to define LED_RED but they all define LED1.
- Removed all ERROR_RED and ERROR_PATTERN definitions from targets/targets.json
The current error sequence for microcontrollers with less than 4 LEDs is
to toggle an LED at a fixed rate. Change the sequence to 4 short pulses
followed by 4 long pulses.
Christopher Haster
Kevin Bracey
Vincent Coubard
Senthil Ramakrishnan
Chris Snow
Russ Butler
Przemyslaw Stekiel
Deepika
Anna Bridge
Jimmy Brisson
Martin Kojtal
Steve Cartmell
Fahrzin Hemmati
ccli8
Fahrzin Hemmati
Bartek Szatkowski