1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
/*
* Copyright (c) 2015, Freescale Semiconductor, Inc.
* Copyright (c) 2016, Toradex AG
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without modification,
* are permitted provided that the following conditions are met:
*
* o Redistributions of source code must retain the above copyright notice, this list
* of conditions and the following disclaimer.
*
* o Redistributions in binary form must reproduce the above copyright notice, this
* list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution.
*
* o Neither the name of Freescale Semiconductor, Inc. nor the names of its
* contributors may be used to endorse or promote products derived from this
* software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR
* ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
* ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <FreeRTOS.h>
#include <task.h>
#include <ccm_vf6xx.h>
#include <lpuart_vf6xx.h>
#include <gpio_vf6xx.h>
#include "debug_console_vf6xx.h"
#include "pin_mux.h"
struct hello_world {
const char *text;
int delay;
};
static struct hello_world task_a = {
.text = "Hello, World!\r\n",
.delay = 700,
};
void switch_task(void *p)
{
struct hello_world *data = (struct hello_world *)p;
for (;;) {
if (GPIO_ReadPinInput(GPIO(38), 38))
PRINTF(data->text);
vTaskDelay(data->delay);
}
}
void led_toggle_task(void *p)
{
for (;;) {
GPIO_TogglePinOutput(GPIO(39), 39);
vTaskDelay(500);
}
}
int main(void)
{
/* Init Clock Control and UART */
CCM_GetClocks();
CCM_ControlGate(ccmCcgrGateUart2, ccmClockNeededAll);
configure_uart_pins(UART2);
vf6xx_DbgConsole_Init(UART2, ccmIpgBusClk, 115200);
gpio_init_t ledIn = {.pin = 38, .direction = gpioDigitalInput};
gpio_init_t ledOut = {.pin = 39, .direction = gpioDigitalOutput};
GPIO_Init(GPIO(38), &ledIn);
GPIO_Init(GPIO(39), &ledOut);
xTaskCreate(switch_task, "Task A", configMINIMAL_STACK_SIZE,
&task_a, tskIDLE_PRIORITY, NULL);
xTaskCreate(led_toggle_task, "Task B", configMINIMAL_STACK_SIZE,
&task_a, tskIDLE_PRIORITY, NULL);
vTaskStartScheduler();
while (true);
}
|
