/*
|
* Copyright (c) 2019-2023 Beijing Hanwei Innovation Technology Ltd. Co. and
|
* its subsidiaries and affiliates (collectly called MKSEMI).
|
*
|
* All rights reserved.
|
*
|
* Redistribution and use in source and binary forms, with or without
|
* modification, are permitted provided that the following conditions are met:
|
*
|
* 1. Redistributions of source code must retain the above copyright notice,
|
* this list of conditions and the following disclaimer.
|
*
|
* 2. Redistributions in binary form, except as embedded into an MKSEMI
|
* integrated circuit in a product or a software update for such product,
|
* 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.
|
*
|
* 3. Neither the name of MKSEMI nor the names of its contributors may be used
|
* to endorse or promote products derived from this software without
|
* specific prior written permission.
|
*
|
* 4. This software, with or without modification, must only be used with a
|
* MKSEMI integrated circuit.
|
*
|
* 5. Any software provided in binary form under this license must not be
|
* reverse engineered, decompiled, modified and/or disassembled.
|
*
|
* THIS SOFTWARE IS PROVIDED BY MKSEMI "AS IS" AND ANY EXPRESS OR IMPLIED
|
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
* MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
|
* DISCLAIMED. IN NO EVENT SHALL MKSEMI 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 "mk_pwm.h"
|
#include "mk_trace.h"
|
#include "mk_reset.h"
|
#include "mk_calib.h"
|
#include "mk_gpio.h"
|
#include "mk_wdt.h"
|
#include "libc_rom.h"
|
#include "board.h"
|
|
static void pwm_callback(void *dev, uint32_t status)
|
{
|
uint8_t id = *(uint8_t *)dev;
|
LOG_INFO(TRACE_MODULE_APP, "PWM %x interrupt callback\r\n", id);
|
|
gpio_pin_toggle(IO_PIN_7);
|
}
|
|
int main(void)
|
{
|
board_clock_run();
|
board_pins_config();
|
board_debug_console_open(TRACE_PORT_UART0);
|
// Reset reason
|
reset_cause_get();
|
reset_cause_clear();
|
|
// Chip calibration
|
calib_chip();
|
|
// Disable watchdog timer
|
wdt_close(WDT_ID0);
|
LOG_INFO(TRACE_MODULE_APP, "PWM example\r\n");
|
|
struct PWM_CFG_T usr_pwm_cfg = {
|
.general_prescale = 15,
|
.int_en = 1,
|
.callback = pwm_callback,
|
};
|
pwm_open(&usr_pwm_cfg);
|
|
// PWM frequency = PCLK / 256 / (general_prescale + 1) / (prescale + 1)
|
struct PWM_CH_CFG_T usr_pwm_ch0_cfg = {
|
.prescale = 1,
|
.waveform = PWM_SEQUENTIAL,
|
.ratio = 10,
|
.phase = 0,
|
.pol_inv = 0,
|
.int_en = 0,
|
};
|
|
struct PWM_CH_CFG_T usr_pwm_ch1_cfg = {
|
.prescale = 5,
|
.waveform = PWM_SEQUENTIAL,
|
.ratio = 20,
|
.phase = 0,
|
.pol_inv = 0,
|
.int_en = 1,
|
};
|
|
struct PWM_CH_CFG_T usr_pwm_ch2_cfg = {
|
.prescale = 7,
|
.waveform = PWM_SEQUENTIAL,
|
.ratio = 50,
|
.phase = 0,
|
.pol_inv = 0,
|
.int_en = 1,
|
};
|
|
struct PWM_CH_CFG_T usr_pwm_ch3_cfg = {
|
.prescale = 9,
|
.waveform = PWM_SEQUENTIAL,
|
.ratio = 80,
|
.phase = 0,
|
.pol_inv = 0,
|
.int_en = 1,
|
};
|
|
struct PWM_CH_CFG_T usr_pwm_ch4_cfg = {
|
.prescale = 15,
|
.waveform = PWM_SEQUENTIAL,
|
.ratio = 90,
|
.phase = 0,
|
.pol_inv = 0,
|
.int_en = 1,
|
};
|
|
pwm_ch_enable(PWM_ID0, &usr_pwm_ch0_cfg);
|
pwm_ch_enable(PWM_ID1, &usr_pwm_ch1_cfg);
|
pwm_ch_enable(PWM_ID2, &usr_pwm_ch2_cfg);
|
pwm_ch_enable(PWM_ID3, &usr_pwm_ch3_cfg);
|
pwm_ch_enable(PWM_ID4, &usr_pwm_ch4_cfg);
|
|
gpio_open();
|
board_configure();
|
gpio_pin_set_dir(IO_PIN_7, GPIO_DIR_OUT, 0);
|
|
while (1)
|
{
|
}
|
}
|
