Modify usbcan for using ringbuffer, refresh kicad schematic & PCB

2026-02-28 11:54:30 +03:00 · 2022-10-28 17:12:24 +03:00
parent 1dc60d18b5
commit 9467ea072a
41 changed files with 36617 additions and 0 deletions
--- a/F0:F030,F042,F072/usbcan_ringbuffer/main.c
+++ b/F0:F030,F042,F072/usbcan_ringbuffer/main.c
@@ -0,0 +1,84 @@
+/*
+ * This file is part of the usbcanrb project.
+ * Copyright 2022 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 "can.h"
+#include "hardware.h"
+#include "proto.h"
+#include "usb.h"
+#include "usb_lib.h"
+
+#define MAXSTRLEN    128
+
+volatile uint32_t Tms = 0;
+static char inbuff[MAXSTRLEN];
+
+/* Called when systick fires */
+void sys_tick_handler(void){
+    ++Tms;
+}
+
+int main(void){
+    uint32_t lastT = 0;
+    CAN_message *can_mesg;
+    sysreset();
+    SysTick_Config(6000, 1);
+    gpio_setup();
+    USB_setup();
+    CAN_setup(100);
+    RCC->CSR |= RCC_CSR_RMVF; // remove reset flags
+#ifndef EBUG
+    iwdg_setup();
+#endif
+
+    while (1){
+        IWDG->KR = IWDG_REFRESH; // refresh watchdog
+        if(lastT && (Tms - lastT > 199)){
+            LED_off(LED0);
+            lastT = 0;
+        }
+        can_proc();
+        USB_proc();
+        if(CAN_get_status() == CAN_FIFO_OVERRUN){
+            USB_sendstr("CAN bus fifo overrun occured!\n");
+        }
+        while((can_mesg = CAN_messagebuf_pop())){
+            if(can_mesg && isgood(can_mesg->ID)){
+                LED_on(LED0);
+                lastT = Tms;
+                if(!lastT) lastT = 1;
+                if(ShowMsgs){ // new data in buff
+                    IWDG->KR = IWDG_REFRESH;
+                    uint8_t len = can_mesg->length;
+                    printu(Tms);
+                    USB_sendstr(" #");
+                    printuhex(can_mesg->ID);
+                    for(uint8_t ctr = 0; ctr < len; ++ctr){
+                        USB_putbyte('\n');
+                        printuhex(can_mesg->data[ctr]);
+                    }
+                    USB_putbyte('\n');
+                }
+            }
+        }
+        int l = USB_receivestr(inbuff, MAXSTRLEN);
+        if(l < 0) USB_sendstr("ERROR: USB buffer overflow or string was too long\n");
+        else if(l) cmd_parser(inbuff);
+    }
+    return 0;
+}
+