initial WIP

lots of code copied over, things filled in to hopefully get the LED matrix lighting up. untested.

firmware/app/driver/accel.h

@@ -0,0 +1,48 @@
+/*
+ * accel.h
+ *
+ *  Created on: Oct 13, 2024
+ *      Author: true
+ */
+
+#ifndef USER_MISC_ACCEL_H_
+#define USER_MISC_ACCEL_H_
+
+
+#include "ch32x035_conf.h"
+#include <stdint.h>
+
+
+
+#define LIS2_CS_PORT            GPIOB       // CH32X035-specific
+#define LIS2_CS_PIN             GPIO_Pin_6
+
+#define LIS2_I2C_ADDR           0x30
+#define LIS2_I2C_ADDR_SDO_LOW   0x32
+
+
+
+typedef struct AccelData {
+    int16_t x;
+    int16_t y;
+    int16_t z;
+} AccelData;
+
+
+
+extern AccelData accel;
+extern uint8_t accel_found;
+
+extern uint16_t movement_worst;
+
+
+
+void accel_init();
+void accel_poll();
+
+int8_t accel_get_rotation(struct AccelData *a);
+int16_t accel_get_movement();
+
+
+
+#endif /* USER_MISC_ACCEL_H_ */