hide deprecated code; make USB snippet common for F0/F1/F3

F1:F103/deprecated/chronometer_v2/usart.h

@@ -0,0 +1,73 @@
+/*
+ * This file is part of the chronometer 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 __USART_H__
+#define __USART_H__
+
+#include <stm32f1.h>
+
+// input and output buffers size (should be less than 256!!!)
+#define UARTBUFSZ   (128)
+// timeout between data bytes
+#ifndef TIMEOUT_MS
+#define TIMEOUT_MS (1500)
+#endif
+
+// number of last USART used
+#define USART_LAST     3
+
+// USART1 default speed
+#define USART1_DEFAULT_SPEED    (115200)
+// LIDAR default speed
+#define LIDAR_DEFAULT_SPEED     (115200)
+// GPS default speed
+#define GPS_DEFAULT_SPEED       (9600)
+
+#define STR_HELPER(s)   #s
+#define STR(s)          STR_HELPER(s)
+
+#ifdef EBUG
+#define SEND(str) usart_send(1, str)
+#define MSG(str)  do{SEND(__FILE__ " (L" STR(__LINE__) "): " str);}while(0)
+#define DBG(str)  do{SEND(str); newline(1); }while(0)
+#else
+#define SEND(str)
+#define MSG(str)
+#define DBG(str)
+#endif
+
+#define usartrx(n)  (linerdy[n])
+#define usartovr(n) (bufovr[n])
+
+extern volatile uint8_t linerdy[], bufovr[], txrdy[];
+
+void transmit_tbuf(uint8_t n);
+void usarts_setup();
+int usart_getline(int n, char **line);
+void usart_send(uint8_t n, const char *str);
+void usart_putchar(uint8_t n, char ch);
+void printu(uint8_t n, uint32_t val);
+void printuhex(uint8_t n, uint32_t val);
+void newline(uint8_t n);
+
+#ifdef EBUG
+void hexdump(uint8_t *arr, uint16_t len);
+#endif
+
+#endif // __USART_H__