restructuring

deprecated/F1/1_wire/main.c

@@ -0,0 +1,92 @@
+/*
+ * main.c
+ *
+ * Copyright 2014 Edward V. Emelianov <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 "main.h"
+#include "hardware_ini.h"
+#include "cdcacm.h"
+#include "onewire.h"
+
+volatile uint32_t Timer = 0; // global timer (milliseconds)
+usbd_device *usbd_dev;
+
+int main(){
+	uint32_t Old_timer = 0;
+
+	// RCC clocking: 8MHz oscillator -> 72MHz system
+	rcc_clock_setup_in_hse_8mhz_out_72mhz();
+
+	GPIO_init();
+
+	usb_disconnect(); // turn off USB while initializing all
+
+	// USB
+	usbd_dev = USB_init();
+
+	// SysTick is a system timer with 1ms period
+	SysTick_init();
+
+	// wait a little and then turn on USB pullup
+//	for (i = 0; i < 0x800000; i++)
+//		__asm__("nop");
+
+	usb_connect(); // turn on USB
+
+	init_ow_dmatimer();
+
+	while(1){
+		usbd_poll(usbd_dev);
+		if(usbdatalen){ // there's something in USB buffer
+			usbdatalen = parse_incoming_buf(usbdatabuf, usbdatalen);
+		}
+		//check_and_parse_UART(USART1); // also check data in UART buffers
+		check_btns();
+		if(Timer - Old_timer > 999){ // one-second cycle
+			Old_timer += 1000;
+		}else if(Timer < Old_timer){ // Timer overflow
+			Old_timer = 0;
+		}
+		OW_process();
+	}
+}
+
+
+/**
+ * SysTick interrupt: increment global time & send data buffer through USB
+ */
+void sys_tick_handler(){
+	Timer++;
+	usbd_poll(usbd_dev);
+	usb_send_buffer();
+}
+
+// pause function, delay in ms
+void Delay(uint16_t _U_ time){
+	uint32_t waitto = Timer + time;
+	while(Timer < waitto);
+}
+
+/**
+ * print current time in milliseconds: 4 bytes for ovrvlow + 4 bytes for time
+ * with ' ' as delimeter
+ */
+void print_time(){
+	print_int(Timer);
+}