add pre-pre alpha of 7 CDCs

F3:F303/Seven_CDCs/usart.h

@@ -0,0 +1,36 @@
+/*
+ * This file is part of the SevenCDCs project.
+ * Copyright 2022 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 __USART_H__
+#define __USART_H__
+
+#include "hardware.h"
+#include "usb_lib.h"
+
+// amount of usarts
+#define USARTSNO        3
+
+extern volatile int linerdy, bufovr;
+
+void usarts_setup();
+void usart_config(uint8_t usartNo, usb_LineCoding *lc);
+void usart_sendn(const uint8_t *str, int L);
+usb_LineCoding *getLineCoding(int usartNo);
+
+#endif // __USART_H__