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/BMP180/main.c
+++ b/F1:F103/BMP180/main.c
@@ -0,0 +1,105 @@
+/*
+ * This file is part of the BMP180 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 "BMP180.h"
+#include "hardware.h"
+#include "proto.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
+static 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;
+}
+
+int main(void){
+    uint32_t lastT = 0;
+    sysreset();
+    StartHSE();
+    hw_setup();
+    SysTick_Config(72000);
+
+    RCC->CSR |= RCC_CSR_RMVF; // remove reset flags
+
+    USBPU_OFF();
+    USB_setup();
+    BMP180_init();
+    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();
+        BMP180_process(/*Tms*/);
+        BMP180_status s = BMP180_get_status();
+        if(s == BMP180_RDY){ // data ready - get it
+            int32_t T;
+            uint32_t P;
+            BMP180_getdata(&T, &P);
+            USB_send("T="); USB_send(i2str(T)); USB_send(" (/10degC)\nP=");
+            USB_send(u2str(P)); USB_send(" (Pa) or ");
+            float mm = P*0.0750062;
+            USB_send(u2str(mm)); USB_send(" (/10mmHg)\n");
+        }else if(s == BMP180_ERR){
+            USB_send("Error in measurement\n");
+            BMP180_reset();
+            BMP180_init();
+        }
+
+        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;
+}