123 lines
3 KiB
C
123 lines
3 KiB
C
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/*
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Copyright (C) 2018 andru
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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#include "ch.h"
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#include "hal.h"
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#include "chprintf.h"
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static icucnt_t last_width, last_period;
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static SerialConfig serial_config = {
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.speed = 38400,
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.tx_pad = UART_TX,
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.rx_pad = UART_RX,
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#if NRF5_SERIAL_USE_HWFLOWCTRL == TRUE
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.rts_pad = UART_RTS,
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.cts_pad = UART_CTS,
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#endif
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};
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static void pwm_cb_period(PWMDriver *pwmp) {
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(void)pwmp;
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palTogglePad(IOPORT1, LED1);
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}
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void icu_width_cb(ICUDriver *icup) {
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last_width = icuGetWidthX(icup);
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}
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void icu_period_cb(ICUDriver *icup) {
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last_period = icuGetPeriodX(icup);
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}
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ICUConfig icucfg = {
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.frequency = ICU_FREQUENCY_250KHZ,
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.width_cb = icu_width_cb,
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.period_cb = icu_period_cb,
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NULL,
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.iccfgp = {
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{
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.ioline = { BTN1, BTN2 },
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.mode = ICU_INPUT_ACTIVE_HIGH,
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.gpiote_channel = { 0, 1 },
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.ppi_channel = { 0, 1 },
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},
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},
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};
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PWMConfig pwmcfg = {
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.frequency = PWM_FREQUENCY_125KHZ,
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.period = 12500,
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.callback = pwm_cb_period,
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{
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{ .mode = PWM_OUTPUT_DISABLED,
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},
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{ .mode = PWM_OUTPUT_ACTIVE_HIGH,
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.ioline = LINE_LED2,
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},
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},
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};
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/*
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* Application entry point.
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*/
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int main(void) {
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/*
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* System initializations.
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* - HAL initialization, this also initializes the configured device drivers
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* and performs the board-specific initializations.
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* - Kernel initialization, the main() function becomes a thread and the
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* RTOS is active.
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*/
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halInit();
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chSysInit();
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sdStart(&SD1, &serial_config);
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/*
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*
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*/
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pwmStart(&PWMD1, &pwmcfg);
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pwmEnablePeriodicNotification(&PWMD1);
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icuStart(&ICUD1, &icucfg);
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icuStartCapture(&ICUD1);
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pwmEnableChannel(&PWMD1, 1, PWM_PERCENTAGE_TO_WIDTH(&PWMD1, 2500)); // 25%
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chThdSleepMilliseconds(5000);
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chprintf((BaseSequentialStream *) &SD1, "period=%d, width=%d\r\n", last_period, last_width);
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pwmEnableChannel(&PWMD1, 1, PWM_PERCENTAGE_TO_WIDTH(&PWMD1, 5000)); // 50%
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chThdSleepMilliseconds(5000);
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chprintf((BaseSequentialStream *) &SD1, "period=%d, width=%d\r\n", last_period, last_width);
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pwmEnableChannel(&PWMD1, 1, PWM_PERCENTAGE_TO_WIDTH(&PWMD1, 7500)); // 75%
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chThdSleepMilliseconds(5000);
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chprintf((BaseSequentialStream *) &SD1, "period=%d, width=%d\r\n", last_period, last_width);
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pwmChangePeriod(&PWMD1, 5000);
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chThdSleepMilliseconds(5000);
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pwmDisableChannel(&PWMD1, 1);
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pwmStop(&PWMD1);
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icuStopCapture(&ICUD1);
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icuStop(&ICUD1);
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while (true) {
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chThdSleepMilliseconds(500);
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}
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}
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