--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/Small_CPU/Inc/spi.h	Sat Apr 28 11:52:34 2018 +0200
@@ -0,0 +1,53 @@
+/**
+  ******************************************************************************
+  * @file    spi.h
+  * @author  heinrichs weikamp gmbh
+  * @version V0.0.1
+  * @date    16-Sept-2014
+  * @brief   Header file for spi control
+  ******************************************************************************
+  * @attention
+  *
+  * <h2><center>&copy; COPYRIGHT(c) 2014 heinrichs weikamp</center></h2>
+  *
+  ******************************************************************************
+  */ 
+
+/* Define to prevent recursive inclusion -------------------------------------*/
+#ifndef SPI_H
+#define SPI_H
+
+#ifdef __cplusplus
+ extern "C" {
+#endif
+
+/* Includes ------------------------------------------------------------------*/
+#include "stm32f4xx_hal.h"
+
+extern SPI_HandleTypeDef hspi1;
+
+void MX_SPI1_Init(void);
+//void SPI_Start_single_TxRx_with_Master_and_Stop_ChipSelectControl(void);
+void SPI_Start_single_TxRx_with_Master(void);
+void SPI_synchronize_with_Master(void);
+void MX_SPI_DeInit(void);
+
+	 /* button adjust */
+void MX_SPI3_Init(void);
+void MX_SPI3_DeInit(void);
+uint8_t SPI3_ButtonAdjust(uint8_t *arrayInput, uint8_t *arrayOutput);
+	 
+#ifdef __cplusplus
+}
+#endif
+#endif /* SPI_H */
+
+/**
+  * @}
+  */
+
+/**
+  * @}
+  */
+
+/************************ (C) COPYRIGHT STMicroelectronics *****END OF FILE****/