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-rw-r--r--lib/chibios-contrib/testhal/NRF51/NRF51822/PWM/main.c74
1 files changed, 74 insertions, 0 deletions
diff --git a/lib/chibios-contrib/testhal/NRF51/NRF51822/PWM/main.c b/lib/chibios-contrib/testhal/NRF51/NRF51822/PWM/main.c
new file mode 100644
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+++ b/lib/chibios-contrib/testhal/NRF51/NRF51822/PWM/main.c
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1/*
2 Copyright (C) 2016 Stéphane D'Alu
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
20static void pwm_cb_period(PWMDriver *pwmp) {
21 (void)pwmp;
22
23 palTogglePad(IOPORT1, LED0);
24 palClearPad(IOPORT1, LED1);
25
26}
27
28static void pwm_cb_channel0(PWMDriver *pwmp) {
29 (void)pwmp;
30 palSetPad(IOPORT1, LED1);
31}
32
33
34/*
35 * Application entry point.
36 */
37int main(void) {
38 PWMConfig pwmcfg = {
39 .frequency = PWM_FREQUENCY_31250HZ,
40 .period = 31250,
41 .callback = pwm_cb_period,
42 { { .mode = PWM_OUTPUT_DISABLED,
43 .callback = pwm_cb_channel0, },
44 { .mode = PWM_OUTPUT_ACTIVE_HIGH,
45 .callback = NULL,
46 .ioline = LINE_LED2,
47 .gpiote_channel = 0,
48 .ppi_channel = { 0, 1 } },
49 },
50 };
51
52 /*
53 * System initializations.
54 * - HAL initialization, this also initializes the configured device drivers
55 * and performs the board-specific initializations.
56 * - Kernel initialization, the main() function becomes a thread and the
57 * RTOS is active.
58 */
59 halInit();
60 chSysInit();
61
62 /*
63 *
64 */
65 pwmStart(&PWMD1, &pwmcfg);
66 pwmEnablePeriodicNotification(&PWMD1);
67 pwmEnableChannel(&PWMD1, 0, PWM_FRACTION_TO_WIDTH(&PWMD1, 2, 1));
68 pwmEnableChannelNotification(&PWMD1, 0);
69 pwmEnableChannel(&PWMD1, 1, PWM_FRACTION_TO_WIDTH(&PWMD1, 4, 3));
70
71 while (1) {
72 chThdSleepMilliseconds(500);
73 }
74}