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/F0:F030,F042,F072/F0_testbrd/main.c
+++ b/F0:F030,F042,F072/F0_testbrd/main.c
@@ -0,0 +1,109 @@
+/*
+ * main.c
+ *
+ * Copyright 2017 Edward V. Emelianoff <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.
+ */
+
+#include "adc.h"
+#include "hardware.h"
+#include "i2c.h"
+#include "proto.h"
+#include "spi.h"
+#include "usart.h"
+#include "usb.h"
+#include "usb_lib.h"
+
+// ADC value threshold for meaning it is new
+#define ADCthreshold    (20)
+
+volatile uint32_t Tms = 0;
+
+/* Called when systick fires */
+void sys_tick_handler(void){
+    ++Tms;
+}
+
+volatile uint8_t ADCmon = 0; // ==1 to monitor ADC (change PWM of LEDS & show current value)
+uint16_t oldADCval = 0;
+
+int main(void){
+    uint32_t lastT = 0;
+    sysreset();
+    SysTick_Config(6000, 1);
+    hw_setup();
+
+    RCC->CSR |= RCC_CSR_RMVF; // remove reset flags
+
+    USB_setup();
+    iwdg_setup();
+
+    while (1){
+        IWDG->KR = IWDG_REFRESH; // refresh watchdog
+        if(lastT > Tms || Tms - lastT > 499){
+            if(ADCmon){
+                uint16_t v = getADCval(0);
+                int32_t d = v - oldADCval;
+                if(d < -ADCthreshold || d > ADCthreshold){
+                    oldADCval = v;
+                    printADCvals();
+                    v >>= 2; // 10 bits
+                    TIM3->CCR1 = TIM3->CCR2 = TIM3->CCR3 = 0xff; TIM3->CCR4 = 0;
+                    if(v >= 0x300) TIM3->CCR4 = v - 0x300;
+                    else if(v >= 0x200) TIM3->CCR3 = v - 0x200;
+                    else if(v >= 0x100){ TIM3->CCR2 = v - 0x100; TIM3->CCR3 = 0; }
+                    else{ TIM3->CCR1 = v; TIM3->CCR2 = TIM3->CCR3 = 0; }
+                }
+            }
+            lastT = Tms;
+            transmit_tbuf(); // non-blocking transmission of data from UART buffer every 0.5s
+        }
+        if(I2C_scan_mode){
+            uint8_t addr;
+            int ok = i2c_scan_next_addr(&addr);
+            if(addr == I2C_ADDREND) USND("Scan ends\n");
+            else if(ok){
+                USB_sendstr(uhex2str(addr));
+                USND(" ("); USB_sendstr(u2str(addr));
+                USND(") - found device\n");
+            }
+        }
+        usb_proc();
+        char *txt;
+        if((txt = get_USB())){
+            const char *ans = parse_cmd(txt);
+            if(ans){
+                uint16_t l = 0; const char *p = ans;
+                while(*p++) l++;
+                USB_send((uint8_t*)ans, l);
+                if(ans[l-1] != '\n') USND("\n");
+            }
+        }
+        for(int n = 1; n <= USARTNUM; ++n){
+            if(usartrx(n)){ // usart1 received data, store in in buffer
+                int r = usart_getline(n, &txt);
+                if(r){
+                    txt[r] = 0;
+                    USND("Got string over USART"); USB_sendstr(u2str(n));
+                    USND(":\n"); USB_sendstr(txt);
+                }
+            }
+        }
+    }
+    return 0;
+}
+