add Canon managing device KiCAD schematic & PCB

F1:F103/Canon_managing_device/spi.h

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+/*
+ * This file is part of the LED_screen project.
+ * Copyright 2019 Edward V. Emelianov <edward.emelianoff@gmail.com>.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#pragma once
+#ifndef SPI_H__
+#define SPI_H__
+
+#include "stm32f1.h"
+
+extern uint32_t SPI_CR1;
+
+typedef enum{
+    SPI_NOTREADY,
+    SPI_READY,
+    SPI_BUSY
+} spiStatus;
+
+extern spiStatus SPI_status;
+
+void spi_setup();
+uint8_t SPI_transmit(const uint8_t *buf, uint8_t len);
+uint8_t *SPI_receive(uint8_t *len);
+
+#endif // SPI_H__