[paparazzi-commits] [paparazzi/paparazzi] cd6e39: [stm32f4_spektrum] Fixes the additional glitch pul...

[GitHub]

  Branch: refs/heads/v5.4
  Home:   https://github.com/paparazzi/paparazzi
  Commit: cd6e39ed1c1071661624d707660393aef0614a79
      
https://github.com/paparazzi/paparazzi/commit/cd6e39ed1c1071661624d707660393aef0614a79
  Author: Piotr Esden-Tempski <address@hidden>
  Date:   2015-02-10 (Tue, 10 Feb 2015)

  Changed paths:
    M sw/airborne/arch/stm32/mcu_periph/gpio_arch.c

  Log Message:
  -----------
  [stm32f4_spektrum] Fixes the additional glitch pulse.

If you set the alternate function before setting the pin to input AF.
The GPIO will pull down the line down very briefly. This will cause an
additional pulse to be detected by a spektrum satellite if it is being
reconfigured as a UART RX after sending bind mode pulses.

closes #1090 and fixes #780