start with RTC for G0

2026-02-28 03:44:30 +03:00 · 2023-01-12 23:29:30 +03:00
parent b1c8012e11
commit 5066fcf3c2
20 changed files with 1221 additions and 0 deletions
--- a/G0:G070/RTC/proto.c
+++ b/G0:G070/RTC/proto.c
@@ -0,0 +1,83 @@
+/*
+ * This file is part of the rtc project.
+ * Copyright 2023 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/>.
+ */
+
+#include <stm32g0.h>
+#include <string.h>
+
+#include "rtc.h"
+#include "strfunc.h"
+#include "usart.h"
+
+extern volatile uint32_t Tms;
+
+const char *helpstring =
+        "t - print current Tms\n"
+        "T - print current Time\n"
+;
+
+TRUE_INLINE void putch(char x){
+    usart3_send(&x, 1);
+}
+
+static const char *weekdays[] = {"Mon", "Tue", "Wed", "Thur", "Fri", "Sat", "Sun"};
+static const char *months[] = {"Jan", "Feb", "Mar", "Apr", "May", "June", "July", "Aug", "Sept", "Oct", "Nov", "Dec"};
+
+static void prezero(uint8_t x){
+    if(x < 10){ putch('0'); putch('0' + x);}
+    else USND(u2str(x));
+}
+
+void print_curtime(){
+    rtc_t t;
+    get_curtime(&t);
+    USND(weekdays[t.day - 1]);
+    putch(' ');
+    USND(months[t.month - 1]);
+    putch(' ');
+    USND(u2str(t.day));
+    putch(' ');
+    prezero(t.hour);
+    putch(':');
+    prezero(t.minute);
+    putch(':');
+    prezero(t.second);
+    USND(" 20"); prezero(t.year);
+    putch('\n');
+}
+
+char *parse_cmd(char *buf){
+    // "long" commands
+/*    switch(*buf){
+    }*/
+    // "short" commands
+    if(buf[1]) return buf; // echo wrong data
+    switch(*buf){
+        case 't':
+            USND("T=");
+            USND(u2str(Tms));
+            putch('\n');
+        break;
+        case 'T':
+            print_curtime();
+        break;
+        default: // help
+            USND(helpstring);
+        break;
+    }
+    return NULL;
+}