Start implementation of option byte manipulation

stm-firmware/include/stm-periph/option-bytes.h

@@ -0,0 +1,45 @@
+/* Reflow Oven Controller
+ *
+ * Copyright (C) 2020  Mario Hüttel <mario.huettel@gmx.net>
+ *
+ * This file is part of the Reflow Oven Controller Project.
+ *
+ * The reflow oven controller is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * GDSII-Converter 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 the reflow oven controller project.
+ * If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#ifndef _OPTION_BYTES_H_
+#define _OPTION_BYTES_H_
+
+#include <stdint.h>
+
+struct option_bytes {
+	/* Word 1 */
+	uint32_t read_protection;// : 8;
+	uint32_t nrst_standby;// : 1;
+	uint32_t nrst_stop;// : 1;
+	uint32_t wdg_sw;// : 1;
+	uint32_t brown_out_level;// : 2;
+	/* Word 2 */
+	uint32_t nwrpi;// : 12;
+};
+
+/**
+ * @brief Read out the option bytes to structs
+ * @param opts
+ */
+void stm_option_bytes_read(struct option_bytes *opts);
+
+int stm_option_bytes_program(const struct option_bytes *opts);
+
+#endif /* _OPTION_BYTES_H_ */