Fixes #16733, applied to STM32F7 series. Signed-off-by: Erwan Gouriou <erwan.gouriou@linaro.org>
This patch adds basic support and for the STM32F769I-DISCO board with GPIO, USART support. Two USARTs are enabled.The GPIOs are configured for the 4 LEDs and one button on the board. Signed-off-by: Yong Jin <jinyong.iot@foxmail.com>