paparazzi/paparazzi — pull request #932 by flixr (2014-11-06 21:16:12+00:00)
Title: [ext][stm32] update libopencm3

to get updates from libopencm3 and remove our own workarounds for:
- STM32F4 25Mhz clock: https://github.com/libopencm3/libopencm3/pull/311
- STM32 defines for TIM9-TIM17: https://github.com/libopencm3/libopencm3/pull/350
- STM32 set I2C address: https://github.com/libopencm3/libopencm3/pull/344

additionally get fixes:
- STM32 safe gpio toggle: https://github.com/libopencm3/libopencm3/pull/337