restructuring

F0:F030,F042,F072/F0_testbrd/spi.h

@@ -0,0 +1,45 @@
+/*
+ * This file is part of the F0testbrd project.
+ * Copyright 2021 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 "stm32f0.h"
+
+#define SPInumber   (2)
+
+#define SPIBUFSZ    (8)
+
+typedef enum{
+    SPI_NOTREADY,
+    SPI_READY,
+    SPI_BUSY
+} spiStatus;
+
+extern spiStatus SPI_status[];
+extern volatile uint8_t SPIoverfl[];
+
+void spi_setup();
+void spi_stop();
+uint8_t SPI_transmit(uint8_t N, const uint8_t *buf, uint8_t len);
+uint8_t SPI_prep_receive(uint8_t N);
+uint8_t SPI_getdata(uint8_t N, uint8_t *buf, uint8_t *maxlen);
+uint8_t SPI_isoverflow(uint8_t N);
+
+#endif // SPI_H__