Initial commit

Source/BSP/Inc/radio_receiver.h

@@ -0,0 +1,34 @@
+#ifndef RADIO_RECEIVER_H
+#define RADIO_RECEIVER_H
+
+#include "stm32g431xx.h"
+#include <stdint.h>
+
+#define SBUS_FRAME_SIZE 25
+#define SBUS_START_BYTE 0X0F
+
+typedef struct
+{
+  int16_t rc_roll;     // -500 - 500
+  int16_t rc_pitch;    // -500 - 500
+  int16_t rc_throttle; // 1000 - 2000
+  int16_t rc_yaw;      // -500 - 500
+  int16_t rc_armed;    // 0/1
+} rc_channels;
+
+void receiver_gpio_init();
+void receiver_lpuart_clock_init();
+void receiver_uart_init();
+void receiver_init();
+void LPUART1_IRQHandler();
+void receiver_update(rc_channels* chs);
+void receiver_parse_frame();
+rc_channels normalize_channels(rc_channels chs);
+int16_t int_mapping(int16_t x, int16_t in_min, int16_t in_max, int16_t out_min, int16_t out_max);
+int8_t bool_mapping_gt(int16_t x, int16_t boundary);
+
+
+void led_init();
+void toggle_led();
+
+#endif