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-rw-r--r--lib/chibios-contrib/testhal/TIVA/TM4C123x/GPT/main.c95
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diff --git a/lib/chibios-contrib/testhal/TIVA/TM4C123x/GPT/main.c b/lib/chibios-contrib/testhal/TIVA/TM4C123x/GPT/main.c
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1/*
2 Copyright (C) 2014..2017 Marco Veeneman
3
4 Licensed under the Apache License, Version 2.0 (the "License");
5 you may not use this file except in compliance with the License.
6 You may obtain a copy of the License at
7
8 http://www.apache.org/licenses/LICENSE-2.0
9
10 Unless required by applicable law or agreed to in writing, software
11 distributed under the License is distributed on an "AS IS" BASIS,
12 WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 See the License for the specific language governing permissions and
14 limitations under the License.
15*/
16
17#include "ch.h"
18#include "hal.h"
19
20/*
21 * GPT1 callback
22 */
23static void gpt1cb(GPTDriver *gptp)
24{
25 (void)gptp;
26 palClearLine(LINE_LED_RED);
27}
28
29/*
30 * GPT7 callback
31 */
32static void gpt7cb(GPTDriver *gptp)
33{
34 (void)gptp;
35 palSetLine(LINE_LED_RED);
36 chSysLockFromISR();
37 gptStartOneShotI(&GPTD1, 31250); /* 0.1 second pulse.*/
38 chSysUnlockFromISR();
39}
40
41/*
42 * GPT1 configuration.
43 */
44static const GPTConfig gpt1cfg =
45{
46 312500, /* 312500 kHz timer clock.*/
47 gpt1cb, /* Timer callback.*/
48};
49
50/*
51 * GPT7 configuration.
52 */
53static const GPTConfig gpt7cfg =
54{
55 10000, /* 10000 kHz timer clock.*/
56 gpt7cb, /* Timer callback.*/
57};
58
59/*
60 * Application entry point.
61 */
62int main(void)
63{
64 /*
65 * System initializations.
66 * - HAL initialization, this also initializes the configured device drivers
67 * and performs the board-specific initializations.
68 * - Kernel initialization, the main() function becomes a thread and the
69 * RTOS is active.
70 */
71 halInit();
72 chSysInit();
73
74 palSetLineMode(LINE_LED_RED, PAL_MODE_OUTPUT_PUSHPULL);
75
76 /*
77 * Start the gpt drivers with the custom configurations.
78 */
79 gptStart(&GPTD1, &gpt1cfg);
80 gptStart(&GPTD7, &gpt7cfg);
81
82 /*
83 * Normal main() thread activity
84 */
85 while (TRUE) {
86 gptStartContinuous(&GPTD7, 5000);
87 chThdSleepMilliseconds(5000);
88 gptStopTimer(&GPTD7);
89 gptStartContinuous(&GPTD7, 2500);
90 chThdSleepMilliseconds(5000);
91 gptStopTimer(&GPTD7);
92 }
93
94 return 0;
95}