restructuring

F0:F030,F042,F072/Chiller/usart.h

@@ -0,0 +1,59 @@
+/*
+ * usart.h
+ *
+ * Copyright 2018 Edward V. Emelianov <eddy@sao.ru, 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 2 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
+ * MA 02110-1301, USA.
+ */
+#pragma once
+#ifndef __USART_H__
+#define __USART_H__
+
+#include "stm32f0.h"
+
+// input and output buffers size
+#define UARTBUFSZ  (64)
+// timeout between data bytes
+#define TIMEOUT_MS (100)
+
+typedef enum{
+    ALL_OK,
+    LINE_BUSY,
+    STR_TOO_LONG
+} TXstatus;
+
+#define usart1ovr() (bufovr)
+
+// send constant string
+#define SEND_BLK(x)		do{while(LINE_BUSY == usart1_send_blocking(x, sizeof(x)-1));}while(0)
+#define SEND(x) 		do{while(LINE_BUSY == usart1_send(x, sizeof(x)-1));}while(0)
+
+extern uint8_t bufovr;
+
+void USART1_config();
+int usart1_getline(char **line);
+TXstatus usart1_send(const char *str, int len);
+TXstatus usart1_send_blocking(const char *str, int len);
+TXstatus usart1_sendbuf();
+
+int put_char(char c);
+int put_string(const char *str);
+int put_int(int32_t N);
+int put_uint(uint32_t N);
+
+char *getnum(const char *buf, int32_t *N);
+
+#endif // __USART_H__