stmhal: Add STM32F7DISC and associated changes.

1 files changed, 15 insertions, 0 deletions

diff --git a/stmhal/boards/STM32F7DISC/board_init.c b/stmhal/boards/STM32F7DISC/board_init.c
new file mode 100644
index 000000000..4530a4706
--- /dev/null
+++ b/stmhal/boards/STM32F7DISC/board_init.c
@@ -0,0 +1,15 @@
+#include STM32_HAL_H
+
+void STM32F7DISC_board_early_init(void) {
+    GPIO_InitTypeDef GPIO_InitStructure;
+
+    __GPIOK_CLK_ENABLE();
+
+    // Turn off the backlight. LCD_BL_CTRL = PK3
+    GPIO_InitStructure.Pin = GPIO_PIN_3;
+    GPIO_InitStructure.Mode = GPIO_MODE_OUTPUT_PP;
+    GPIO_InitStructure.Pull = GPIO_PULLUP;
+    GPIO_InitStructure.Speed = GPIO_SPEED_HIGH;
+    HAL_GPIO_Init(GPIOK, &GPIO_InitStructure);
+    HAL_GPIO_WritePin(GPIOK, GPIO_PIN_3, GPIO_PIN_RESET);
+}