2 Commits

Author	SHA1	Message	Date
Gerson Fernando Budke	1426e15679	cpu/avr8_common: Normalize method prefix name ... Refactor atmega_ prefix to avr8_ prefix and update copyrights. Signed-off-by: Gerson Fernando Budke <nandojve@gmail.com>	2021-01-07 16:29:42 -03:00
Benjamin Valentin	93d2068a9e	cpu/atmega_common: Implement RTC based on TIM2 ... This implements a basic Real Time Clock based on TIM2. As the timer is too fast and wraps around after just 8 bits, it is not used directly. Instead TIM2 is responsible for providing a 1 Hz tick by generating an alarm every second. The current time data is kept in the `.noinit` section, so it will survive a reboot, but the clock will not be updated while the bootloader runs, so expect inaccuracies.	2020-03-03 16:26:26 +01:00