restructuring

2026-02-28 11:54:30 +03:00 · 2022-03-10 11:04:14 +03:00
parent 29560b7c0c
commit 733dbd75d2
1758 changed files with 14 additions and 26855 deletions
--- a/F1:F103/SI7005_HTU21D/main.c
+++ b/F1:F103/SI7005_HTU21D/main.c
@@ -0,0 +1,136 @@
+/*
+ * This file is part of the si7005 project.
+ * Copyright 2020 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 "dewpoint.h"
+#include "hardware.h"
+#include "htu21d.h"
+#include "proto.h"
+#include "si7005.h"
+#include "usb.h"
+#include "usb_lib.h"
+
+#define USBBUFSZ    127
+
+volatile uint32_t Tms = 0;
+
+/* Called when systick fires */
+void sys_tick_handler(void){
+    ++Tms;
+}
+
+// usb getline
+char *get_USB(){
+    static char tmpbuf[USBBUFSZ+1], *curptr = tmpbuf;
+    static int rest = USBBUFSZ;
+    int x = USB_receive(curptr);
+    curptr[x] = 0;
+    if(!x) return NULL;
+    if(curptr[x-1] == '\n'){
+        curptr = tmpbuf;
+        rest = USBBUFSZ;
+        return tmpbuf;
+    }
+    curptr += x; rest -= x;
+    if(rest <= 0){ // buffer overflow
+        curptr = tmpbuf;
+        rest = USBBUFSZ;
+        USB_send("USB buffer overflow\n");
+    }
+    return NULL;
+}
+
+void showd(int32_t mT, int32_t mH){
+    if(mT == -10000 || mH == -10000) return;
+    USB_send("Dewpoint=");
+    int32_t d = dewpoint(mT, mH);
+    if(d < 0){
+        USB_send("-");
+        d = -d;
+    }
+    USB_send(u2str(d));
+    USB_send("*10degrC\n");
+}
+
+int main(void){
+    uint32_t lastT = 0;
+    int32_t mT = -10000; // measured H & T for dewpoint
+    int32_t mH = -10000;
+    sysreset();
+    StartHSE();
+    hw_setup();
+    si7005_setup();
+    HTU21D_setup();
+    SysTick_Config(72000);
+
+    RCC->CSR |= RCC_CSR_RMVF; // remove reset flags
+
+    USBPU_OFF();
+    USB_setup();
+    iwdg_setup();
+    USBPU_ON();
+
+    while (1){
+        IWDG->KR = IWDG_REFRESH; // refresh watchdog
+        if(lastT > Tms || Tms - lastT > 499){
+            LED_blink(LED0);
+            lastT = Tms;
+        }
+        usb_proc();
+        si7005_process();
+        HTU21D_process();
+        HTU21D_status h = HTU21D_get_status();
+        si7005_status s = si7005_get_status();
+
+        if(s == SI7005_HRDY || h == HTU21D_HRDY){ // humidity can be shown
+            if(s == SI7005_HRDY) mH = si7005_getH();
+            else mH = HTU21D_getH();
+            USB_send("Hum=");
+            USB_send(u2str(mH));
+            USB_send("*10%\n");
+            showd(mT, mH);
+        }else if(s == SI7005_TRDY || h == HTU21D_TRDY){ // T can be shown
+            if(s == SI7005_TRDY) mT = si7005_getT();
+            else mT = HTU21D_getT();
+            int32_t T = mT;
+            USB_send("T=");
+            if(T < 0){
+                USB_send("-");
+                T = -T;
+            }
+            USB_send(u2str(T));
+            USB_send("*10degrC\n");
+            showd(mT, mH);
+        }else if(s == SI7005_ERR || h == HTU21D_ERR){
+            USB_send("Error in H/T measurement\n");
+            si7005_setup();
+            HTU21D_setup();
+        }
+
+        char *txt, *ans;
+        if((txt = get_USB())){
+            IWDG->KR = IWDG_REFRESH;
+            ans = (char*)parse_cmd(txt);
+            if(ans){
+                uint16_t l = 0; char *p = ans;
+                while(*p++) l++;
+                USB_send(ans);
+            }
+        }
+    }
+    return 0;
+}