1 files changed, 19 insertions, 0 deletions
diff --git a/stm-init.h b/stm-init.h
index ed80d01..dd19311 100644
--- a/stm-init.h
+++ b/stm-init.h
@@ -38,6 +38,25 @@
 #include "cmsis_os.h"
 #include "stm32f4xx_hal.h"
 
+/* Macros used to make GPIO pin setup (in stm-init.c) easier */
+#define gpio_output(output_port, output_pins, output_level)	\
+    /* Configure GPIO pin Output Level */			\
+    HAL_GPIO_WritePin(output_port, output_pins, output_level);	\
+    /* Configure pin as output */ 				\
+    GPIO_InitStruct.Pin = output_pins; 				\
+    GPIO_InitStruct.Mode  = GPIO_MODE_OUTPUT_PP; 		\
+    GPIO_InitStruct.Pull = GPIO_NOPULL; 			\
+    GPIO_InitStruct.Speed = GPIO_SPEED_LOW; 			\
+    HAL_GPIO_Init(output_port, &GPIO_InitStruct)
+
+#define gpio_input(input_port, input_pin, input_pull)	\
+    GPIO_InitStruct.Pin = input_pin;			\
+    GPIO_InitStruct.Mode = GPIO_MODE_INPUT;		\
+    GPIO_InitStruct.Pull = input_pull;			\
+    GPIO_InitStruct.Speed = GPIO_SPEED_LOW;		\
+    HAL_GPIO_Init(input_port, &GPIO_InitStruct)
+
+
 extern void stm_init(void);
 extern void Error_Handler(void);