всё работает

+экранчик

Core/OLED_Driver/oled.h

@@ -0,0 +1,20 @@
+/*
+ * oled.h
+ *
+ *  Created on: Nov 17, 2021
+ *      Author: wvv
+ */
+#ifndef OLED_H
+#define OLED_H
+
+#include "stm32g4xx_hal.h"
+
+#define OLED_WIDTH 128
+#define OLED_HEIGHT 8
+#define PIXEL_MODE_PAINT 	0
+#define PIXEL_MODE_CLEAR	1
+extern uint8_t oled_buf[OLED_HEIGHT * OLED_WIDTH];
+
+void oled_refresh(void);
+void oled_init(void);
+#endif //OLED_H