Files

Karl Palsson f368819e81 Update to current master library

can fixes are compile tested only.  I don't have those boards.
f3 i2c is tested on i2c and gives the same results
l1 low power demo seems to have been broken for some time already.
 => should be fixed, but not something I'm going to work on right now.

2017-09-01 23:19:46 +00:00

main.c

Update to current master library

2017-09-01 23:19:46 +00:00

Makefile

Make the STM32 Makefile.includes usable from outside the examples tree (Issue #28 )

2014-01-06 22:25:55 +01:00

README.md

[README] Coarse sweep to use markup in READMEs.

2015-01-19 19:20:12 -08:00

syscfg.h

timer_reset -> rcc_periph_reset_pulse() replace

2016-12-16 21:32:36 +00:00

README.md

README

This is functionally identical to the "button-irq-printf" example, but has been modified to use some low power features.

There is a 115200@8n1 console on PA2, which prints a tick count every second, and when the user push button is pressed, the time it is held down for is timed (in milliseconds)

Instead of free running timers and busy loops, this version uses the RTC module and attempts to sleep as much as possible, including while the button is pressed.

Status

Only very basic power savings are done!

Current consumption, led off/on, 16Mhz HSI: 2.7mA/5.4mA Current consumption, led off/on, 4Mhz HSI: 1.4mA/?.?mA Current consumption, led off/on, 4Mhz MSI: 0.9mA/?.?mA