airbourne/airbourne/examples/time/main.cpp
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1 /*
2  * Copyright (c) 2017, James Jackson
3  *
4  * All rights reserved.
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions are met:
8  *
9  * * Redistributions of source code must retain the above copyright notice, this
10  * list of conditions and the following disclaimer.
11  *
12  * * Redistributions in binary form must reproduce the above copyright notice,
13  * this list of conditions and the following disclaimer in the documentation
14  * and/or other materials provided with the distribution.
15  *
16  * * Neither the name of the copyright holder nor the names of its
17  * contributors may be used to endorse or promote products derived from
18  * this software without specific prior written permission.
19  *
20  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
23  * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
24  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
25  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
26  * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
27  * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
28  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
29  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
30  */
31 
32 #include "revo_f4.h"
33 
34 #include "led.h"
35 #include "vcp.h"
36 #include "printf.h"
37 
39 
40 static void _putc(void *p, char c)
41 {
42  (void)p; // avoid compiler warning about unused variable
43  uartPtr->put_byte(c);
44 }
45 
46 int main() {
47 
48  systemInit();
49 
50  VCP vcp;
51  vcp.init();
52  uartPtr = &vcp;
53 
55 
56 
57  LED warn;
58  warn.init(LED1_GPIO, LED1_PIN);
59  LED info;
60  info.init(LED2_GPIO, LED2_PIN);
61 
62  info.off();
63  warn.on();
64 
65  const int size = 9;
66  uint32_t delays[] = {1000, 100, 31, 2000000, 8000, 29238, 1900, 394177, 1923984};
67  uint32_t time[size];
68  uint32_t supposed[size];
69 
70  while(1)
71  {
72  warn.toggle();
73  info.toggle();
74  uint64_t start = micros();
75  uint64_t sum = 0;
76  delayMicroseconds(delays[0]);
77  sum += delays[0];
78  supposed[0] = sum;
79  time[0] = micros() - start;
80 
81  delayMicroseconds(delays[1]);
82  sum += delays[1];
83  supposed[1] = sum;
84  time[1] = micros() - start;
85 
86  delayMicroseconds(delays[2]);
87  sum += delays[2];
88  supposed[2] = sum;
89  time[2] = micros() - start;
90 
91  delayMicroseconds(delays[3]);
92  sum += delays[3];
93  supposed[3] = sum;
94  time[3] = micros() - start;
95 // for (int i = 0; i < size; i++)
96 // {
97 // delayMicroseconds(delays[i % size]);
98 // sum += delays[i % size];
99 // supposed[i] = sum;
100 // time[i] = micros() - start;
101 // }
102 
103  for (int i = 0; i < 4; i++)
104  {
105  printf("now_us: %lu, delays_us: %lu\n", supposed[i], time[i]);
106  }
107  }
108 }
void systemInit(void)
Definition: system.c:55
void toggle(void)
Definition: gpio.cpp:52
#define printf
Definition: printf.h:119
ROSCPP_DECL void start()
void init(GPIO_TypeDef *gpio_port, uint16_t pin)
Definition: led.cpp:34
void delayMicroseconds(uint32_t us)
Definition: system.c:91
#define LED2_PIN
Definition: revo_f4.h:134
void init()
Definition: vcp.cpp:24
#define LED2_GPIO
Definition: revo_f4.h:133
Definition: led.h:38
volatile uint64_t micros(void)
Definition: system.c:44
#define LED1_GPIO
Definition: revo_f4.h:131
#define LED1_PIN
Definition: revo_f4.h:132
void put_byte(uint8_t ch) override
Definition: vcp.cpp:106
void on()
Definition: led.cpp:39
Definition: vcp.h:20
static void _putc(void *p, char c)
void init_printf(void *putp, void(*putf)(void *, char))
Definition: printf.cpp:245
#define NULL
Definition: usbd_def.h:50
void off()
Definition: led.cpp:44


rosflight_firmware
Author(s): Daniel Koch , James Jackson
autogenerated on Thu Oct 24 2019 03:17:18