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kunlun/app/demo/demo_epwm_test.c

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2024-09-28 14:24:04 +08:00
/****************************************************************************
Copyright(c) 2019 by Aerospace C.Power (Chongqing) Microelectronics. ALL RIGHTS RESERVED.
This Information is proprietary to Aerospace C.Power (Chongqing) Microelectronics and MAY NOT
be copied by any method or incorporated into another program without
the express written consent of Aerospace C.Power. This Information or any portion
thereof remains the property of Aerospace C.Power. The Information contained herein
is believed to be accurate and Aerospace C.Power assumes no responsibility or
liability for its use in any way and conveys no license or title under
any patent or copyright and makes no representation or warranty that this
Information is free from patent or copyright infringement.
****************************************************************************/
#include "iot_task_api.h"
#include "iot_app_api.h"
#include "iot_errno_api.h"
#include "iot_io_api.h"
#include "iot_uart_api.h"
#include "iot_utils_api.h"
#include "iot_gpio_api.h"
#include "iot_board_api.h"
#include "demo.h"
#include "demo_epwm_test.h"
#include "iot_pwm_api.h"
#include <stdlib.h>
#include <string.h>
/* baud rate */
#define EPWM_DEMO_UART_BAUND (115200)
#define EPWM_DEMO_UART_RCV_BUF_LEN 256
#if (TARGET_VERSION == TARGET_KUNLUN)
/* The epwm test case for KL1 is based on WQ IOT module 'LEDC2.0', which with
chip 'WQ3011'. */
static void print_pwm_ch_status(uint8_t ch)
{
iot_epwm_ch_status_t status;
iot_epwm_ch_status_get(ch, &status);
iot_cus_printf("ch%d actual value: ch_clk=%d, prd=%d, cmp=%d, cnt=%d, "
"frq=%d, duty=%d.%d%%\r\n", ch, status.actual_ch_clk,
status.actual_period, status.actual_compare, status.actual_counter,
status.actual_freq, status.actual_duty/100, status.actual_duty%100);
}
static uint32_t kl1_epwm_isr_ch1_tz_cbc(void)
{
static uint32_t flag = 0;
iot_gpio_value_set(10, flag++ % 2);
return 0;
}
static void iot_epwm_kl1_test_case1_update(void)
{
const uint32_t freq_duty_list[][2] ={
{50, 5000}, /* 50Hz, 50% */
{10000, 5000}, /* 10KHz, 50% */
{100000, 5000}, /* 100KHz, 50% */
{1000, 0}, /* 1KHz, 0% */
{1000, 100}, /* 1KHz, 1% */
{1000, 5000}, /* 1KHz, 50% */
{1000, 9900}, /* 1KHz, 99% */
{1000, 10000} /* 1KHz, 100% */
};
static int list_index = 0;
uint8_t ch = IOT_EPWM_CHANNEL_1;
iot_epwm_ch_update(ch, IOT_EPWM_CH_UPDATER_FREQUENCY_DUTY,
freq_duty_list[list_index][0], freq_duty_list[list_index][1]);
iot_cus_printf("\r\ncase1, new frequency and duty: %d Hz, %d.%d%%\r\n ",
freq_duty_list[list_index][0], freq_duty_list[list_index][1] / 100,
freq_duty_list[list_index][1] % 100);
print_pwm_ch_status(ch);
list_index++;
if (list_index >= (sizeof(freq_duty_list)/sizeof(freq_duty_list[0]))) {
list_index = 0;
}
}
/* complementary output, cycle-by-cycle trip-zone on IO47 */
static void iot_epwm_kl1_test_case1_init(void)
{
uint8_t ch = IOT_EPWM_CHANNEL_1;
iot_epwm_global_config_t global_config = IOT_EPWM_GLOBAL_CONFIG_DEFAULT;
iot_epwm_ch_config_t ch_config = IOT_EPWM_CHANNEL_CONFIG_DEFAULT;
iot_cus_printf("%s\r\n", __func__);
iot_gpio_open_as_output(10);
iot_pwm_api_mode_select(IOT_API_MODE_EPWM);
iot_epwm_global_stop();
global_config.clk_src = IOT_PWM_CLK_SRC_25M;
global_config.tz_pins[IOT_EPWM_TZ_1] = 47;
iot_epwm_global_config_set(&global_config);
ch_config.ch_clk_div = 25;
ch_config.ch_pin_outa = 36;
ch_config.ch_pin_outb = 28;
ch_config.ch_polarity_outa = IOT_EPWM_POLARITY_INVERTED;
ch_config.ch_polarity_outb = IOT_EPWM_POLARITY_NORMAL;
ch_config.ch_align_mode = IOT_EPWM_ALIGN_EDGE;
ch_config.ch_duty_load_mode = IOT_EPWM_DUTY_LOAD_CNT_EQU_ZERO;
ch_config.ch_usage = IOT_EPWM_CH_USEAGE_COMMON;
ch_config.ch_common_cfg.freq = 1000;
ch_config.ch_common_cfg.duty = 5000;
ch_config.ch_trip_zone.enable = 1;
ch_config.ch_trip_zone.tz_en_for_cbc[IOT_EPWM_TZ_1] = 1;
ch_config.ch_trip_zone.act_outa = IOT_EPWM_TZ_ACT_SET_HIGH;
ch_config.ch_trip_zone.act_outb = IOT_EPWM_TZ_ACT_SET_LOW;
ch_config.ch_trip_zone.callback_cbc = kl1_epwm_isr_ch1_tz_cbc;
iot_epwm_ch_config_set(ch, &ch_config);
iot_epwm_ch_start(ch);
iot_epwm_global_start();
iot_cus_printf("%s done.\r\n", __func__);
print_pwm_ch_status(ch);
}
static void iot_epwm_kl1_test_case2_update(void)
{
const uint32_t prd_cmp_list[][2] ={
/* {period value, compare value} */
{10000, 0},
{10000, 100},
{10000, 200},
{10000, 5000},
{10000, 10000-200},
{10000, 10000-100},
{10000, 10000},
};
static int list_index = 0;
uint8_t ch = IOT_EPWM_CHANNEL_0;
iot_epwm_ch_update(ch, IOT_EPWM_CH_UPDATER_PERIOD_COMPARE_CNT,
prd_cmp_list[list_index][0], prd_cmp_list[list_index][1]);
iot_epwm_global_sync();
iot_cus_printf("\r\ncase2, new period and compare value: %d, %d\r\n ",
prd_cmp_list[list_index][0], prd_cmp_list[list_index][1]);
print_pwm_ch_status(ch);
list_index++;
if (list_index >= (sizeof(prd_cmp_list)/sizeof(prd_cmp_list[0]))) {
list_index = 0;
}
}
/* output 2 channels */
static void iot_epwm_kl1_test_case2_init(void)
{
uint8_t ch1;
uint8_t ch2;
iot_epwm_global_config_t global_config = IOT_EPWM_GLOBAL_CONFIG_DEFAULT;
iot_epwm_ch_config_t ch_config_default = IOT_EPWM_CHANNEL_CONFIG_DEFAULT;
iot_epwm_ch_config_t ch_config = {0};
iot_cus_printf("%s\r\n", __func__);
iot_pwm_api_mode_select(IOT_API_MODE_EPWM);
iot_epwm_global_stop();
global_config.clk_src = IOT_PWM_CLK_SRC_50M;
iot_epwm_global_config_set(&global_config);
/* config for channel 0 */
os_mem_cpy(&ch_config, &ch_config_default, sizeof(iot_epwm_ch_config_t));
ch1 = IOT_EPWM_CHANNEL_0;
ch_config.ch_clk_div = 5;
ch_config.ch_pin_outa = 36;
ch_config.ch_pin_outb = 0xFF;
ch_config.ch_polarity_outa = IOT_EPWM_POLARITY_NORMAL;
ch_config.ch_align_mode = IOT_EPWM_ALIGN_EDGE;
ch_config.ch_duty_load_mode = IOT_EPWM_DUTY_LOAD_CNT_EQU_ZERO;
ch_config.ch_usage = IOT_EPWM_CH_USEAGE_PRECISE;
ch_config.ch_precise_cfg.period_cnt = 10000;
ch_config.ch_precise_cfg.compare_cnt = 3000;
iot_epwm_ch_config_set(ch1, &ch_config);
/* config for channel 2 */
os_mem_cpy(&ch_config, &ch_config_default, sizeof(iot_epwm_ch_config_t));
ch2 = IOT_EPWM_CHANNEL_2;
ch_config.ch_clk_div = 5;
ch_config.ch_pin_outa = 28;
ch_config.ch_pin_outb = 0xFF;
ch_config.ch_polarity_outa = IOT_EPWM_POLARITY_NORMAL;
ch_config.ch_align_mode = IOT_EPWM_ALIGN_EDGE;
ch_config.ch_duty_load_mode = IOT_EPWM_DUTY_LOAD_CNT_EQU_ZERO;
ch_config.ch_usage = IOT_EPWM_CH_USEAGE_PRECISE;
ch_config.ch_precise_cfg.period_cnt = 10000;
ch_config.ch_precise_cfg.compare_cnt = 8000;
iot_epwm_ch_config_set(ch2, &ch_config);
iot_epwm_ch_start(ch1);
iot_epwm_ch_start(ch2);
iot_epwm_global_start();
iot_cus_printf("%s done.\r\n", __func__);
print_pwm_ch_status(ch1);
print_pwm_ch_status(ch2);
}
static uint32_t kl1_epwm_isr_ch3_tz_osht(void)
{
static uint32_t flag = 0;
iot_gpio_value_set(36, flag++ % 2);
return 0;
}
/* center align, one-shuct trip-zone on IO28 */
static void iot_epwm_kl1_test_case3_init(void)
{
uint8_t ch = IOT_EPWM_CHANNEL_3;
iot_epwm_global_config_t global_config = IOT_EPWM_GLOBAL_CONFIG_DEFAULT;
iot_epwm_ch_config_t ch_config = IOT_EPWM_CHANNEL_CONFIG_DEFAULT;
iot_cus_printf("%s\r\n", __func__);
iot_gpio_open_as_output(36);
iot_pwm_api_mode_select(IOT_API_MODE_EPWM);
iot_epwm_global_stop();
global_config.clk_src = IOT_PWM_CLK_SRC_2M5;
global_config.tz_pins[IOT_EPWM_TZ_1] = 28;
iot_epwm_global_config_set(&global_config);
ch_config.ch_clk_div = 25;
ch_config.ch_pin_outa = 0xFF;
ch_config.ch_pin_outb = 10;
ch_config.ch_polarity_outb = IOT_EPWM_POLARITY_NORMAL;
ch_config.ch_align_mode = IOT_EPWM_ALIGN_CENTER;
ch_config.ch_usage = IOT_EPWM_CH_USEAGE_PRECISE;
ch_config.ch_precise_cfg.period_cnt = 1000;
ch_config.ch_precise_cfg.compare_cnt = 400;
ch_config.ch_trip_zone.enable = 1;
ch_config.ch_trip_zone.tz_en_for_osht[IOT_EPWM_TZ_1] = 1;
ch_config.ch_trip_zone.act_outb = IOT_EPWM_TZ_ACT_SET_HIGH;
ch_config.ch_trip_zone.callback_osht = kl1_epwm_isr_ch3_tz_osht;
iot_epwm_ch_config_set(ch, &ch_config);
iot_epwm_ch_start(ch);
iot_epwm_global_start();
iot_cus_printf("%s done.\r\n", __func__);
print_pwm_ch_status(ch);
}
static uint32_t kl1_epwm_isr_ch2_int(void)
{
static uint32_t flag = 0;
iot_gpio_value_set(28, flag++ % 2);
return 0;
}
/* dead band enable, pwm periodic interrupt enable */
static void iot_epwm_kl1_test_case4_init(void)
{
uint8_t ch = IOT_EPWM_CHANNEL_2;
iot_epwm_global_config_t global_config = IOT_EPWM_GLOBAL_CONFIG_DEFAULT;
iot_epwm_ch_config_t ch_config = IOT_EPWM_CHANNEL_CONFIG_DEFAULT;
iot_cus_printf("%s\r\n", __func__);
iot_gpio_open_as_output(28);
iot_pwm_api_mode_select(IOT_API_MODE_EPWM);
iot_epwm_global_stop();
global_config.clk_src = IOT_PWM_CLK_SRC_25M;
iot_epwm_global_config_set(&global_config);
ch_config.ch_clk_div = 250;
ch_config.ch_pin_outa = 36;
ch_config.ch_pin_outb = 10;
ch_config.ch_polarity_outa = IOT_EPWM_POLARITY_NORMAL;
ch_config.ch_polarity_outb = IOT_EPWM_POLARITY_INVERTED;
ch_config.ch_align_mode = IOT_EPWM_ALIGN_EDGE;
ch_config.ch_usage = IOT_EPWM_CH_USEAGE_PRECISE;
ch_config.ch_precise_cfg.period_cnt = 1000;
ch_config.ch_precise_cfg.compare_cnt = 600;
ch_config.ch_dead_band.enable = 1;
ch_config.ch_dead_band.rising_delay = 100;
ch_config.ch_dead_band.falling_delay = 200;
ch_config.ch_interrupt.enable = 1;
ch_config.ch_interrupt.trigger = IOT_EPWM_INT_TRIG_CNT_EQU_PRD;
ch_config.ch_interrupt.callback = kl1_epwm_isr_ch2_int;
iot_epwm_ch_config_set(ch, &ch_config);
iot_epwm_ch_start(ch);
iot_epwm_global_start();
iot_cus_printf("%s done.\r\n", __func__);
print_pwm_ch_status(ch);
}
static const void (*test_case_init_list[])(void) = {
iot_epwm_kl1_test_case1_init,
iot_epwm_kl1_test_case2_init,
iot_epwm_kl1_test_case3_init,
iot_epwm_kl1_test_case4_init,
};
static const void (*test_case_update_list[])(void) = {
iot_epwm_kl1_test_case1_update,
iot_epwm_kl1_test_case2_update,
NULL,
NULL,
};
#elif (TARGET_VERSION == TARGET_KUNLUN3)
/* The epwm test case for KL3 is based on WQ IOT module 'LEDC2.0', which with
chip 'WQ3031'. */
static uint32_t kl3_epwm_isr_ch1_tz_cbc(void)
{
iot_cus_printf("isr cbc\r\n");
return 0;
}
static uint32_t kl3_epwm_isr_ch1_soca(void)
{
iot_cus_printf("isr soca\r\n");
return 0;
}
static void iot_epwm_kl3_test_case1_update(void)
{
const uint32_t freq_duty_list[][2] ={
{4, 5000}, /* 4Hz, 50% */
{50, 5000}, /* 50Hz, 50% */
{1000, 5000}, /* 1KHz, 50% */
{1000000, 5000}, /* 1MHz, 50% */
{1000, 0}, /* 1KHz, 0% */
{1000, 1}, /* 1KHz, 0.01% */
{1000, 100}, /* 1KHz, 1% */
{1000, 5000}, /* 1KHz, 50% */
{1000, 9900}, /* 1KHz, 99% */
{1000, 9999}, /* 1KHz, 99.99% */
{1000, 10000} /* 1KHz, 100% */
};
static int list_index = 0;
uint8_t ch = IOT_EPWM_CHANNEL_1;
iot_epwm_ch_status_t status;
iot_epwm_ch_update(ch, IOT_EPWM_CH_UPDATER_FREQUENCY_DUTY,
freq_duty_list[list_index][0], freq_duty_list[list_index][1]);
iot_cus_printf("\r\ncase1, new frequency and duty: %d Hz, %d.%d%%\r\n ",
freq_duty_list[list_index][0], freq_duty_list[list_index][1] / 100,
freq_duty_list[list_index][1] % 100);
iot_epwm_ch_status_get(ch, &status);
iot_cus_printf("ch%d actual value: ch_clk=%d, prd=%d, cmp=%d, cnt=%d, "
"frq=%d, duty=%d.%d%%\r\n", ch, status.actual_ch_clk,
status.actual_period, status.actual_compare, status.actual_counter,
status.actual_freq, status.actual_duty/100, status.actual_duty%100);
list_index++;
if (list_index >= (sizeof(freq_duty_list)/sizeof(freq_duty_list[0]))) {
list_index = 0;
}
}
static void iot_epwm_kl3_test_case1_init(void)
{
uint8_t ch = IOT_EPWM_CHANNEL_1;
iot_epwm_global_config_t global_config = IOT_EPWM_GLOBAL_CONFIG_DEFAULT;
iot_epwm_ch_config_t ch_config = IOT_EPWM_CHANNEL_CONFIG_DEFAULT;
iot_cus_printf("%s\r\n", __func__);
iot_pwm_api_mode_select(IOT_API_MODE_EPWM);
iot_epwm_global_stop();
global_config.clk_src = IOT_PWM_CLK_SRC_25M;
global_config.tz_pins[IOT_EPWM_TZ_1] = 31;
iot_epwm_global_config_set(&global_config);
/* config for channel 1 */
ch_config.ch_clk_div = 1;
ch_config.ch_pin_outa = 4;
ch_config.ch_pin_outb = 7;
ch_config.ch_polarity_outa = IOT_EPWM_POLARITY_NORMAL;
ch_config.ch_polarity_outb = IOT_EPWM_POLARITY_INVERTED;
ch_config.ch_align_mode = IOT_EPWM_ALIGN_EDGE;
ch_config.ch_period_load_mode = IOT_EPWM_PERIOD_LOAD_CNT_EQU_ZERO;
ch_config.ch_duty_load_mode = IOT_EPWM_DUTY_LOAD_CNT_EQU_ZERO;
ch_config.ch_usage = IOT_EPWM_CH_USEAGE_COMMON;
ch_config.ch_common_cfg.freq = 1000;
ch_config.ch_common_cfg.duty = 5000;
ch_config.ch_trip_zone.enable = 1;
ch_config.ch_trip_zone.tz_en_for_cbc[IOT_EPWM_TZ_1] = 1;
ch_config.ch_trip_zone.act_outa = IOT_EPWM_TZ_ACT_SET_HIGH;
ch_config.ch_trip_zone.act_outb = IOT_EPWM_TZ_ACT_SET_LOW;
ch_config.ch_trip_zone.callback_cbc = kl3_epwm_isr_ch1_tz_cbc;
ch_config.ch_soca.enable = 1;
ch_config.ch_soca.trigger = IOT_EPWM_SOC_TRIG_CNT_EQU_ZERO;
ch_config.ch_soca.divider = 10;
ch_config.ch_soca.callback = kl3_epwm_isr_ch1_soca;
iot_epwm_ch_config_set(ch, &ch_config);
iot_epwm_ch_start(ch);
iot_epwm_global_start();
}
static uint32_t kl3_epwm_isr_ch0_tz_osht(void)
{
iot_cus_printf("isr osht\r\n");
return 0;
}
static uint32_t kl3_epwm_isr_ch0_socb(void)
{
iot_cus_printf("isr socb\r\n");
return 0;
}
static uint32_t kl3_epwm_isr_ch2_int(void)
{
iot_cus_printf("isr int\r\n");
return 0;
}
static void iot_epwm_kl3_test_case2_update(void)
{
const uint32_t prd_cmp_list[][2] ={
/* {period value, compare value} */
{2, 1},
{100, 100/2},
{1000, 1000/2},
{0xFFFFFF/2, 0xFFFFFF/4},
{0xFFFFFF-2, (0xFFFFFF-2)/2},
{0xFFFFFF-1, (0xFFFFFF-1)/2},
{0xFFFFFF, 0xFFFFFF/2},
{1000, 0},
{1000, 1},
{1000, 2},
{1000, 1000-2},
{1000, 1000-1},
{1000, 1000},
};
static int list_index = 0;
uint8_t ch = IOT_EPWM_CHANNEL_0;
iot_epwm_ch_status_t status;
iot_epwm_ch_update(ch, IOT_EPWM_CH_UPDATER_PERIOD_COMPARE_CNT,
prd_cmp_list[list_index][0], prd_cmp_list[list_index][1]);
iot_epwm_global_sync();
iot_cus_printf("\r\ncase2, new period and compare value: %d, %d\r\n ",
prd_cmp_list[list_index][0], prd_cmp_list[list_index][1]);
iot_epwm_ch_status_get(ch, &status);
iot_cus_printf("ch%d actual value: ch_clk=%d, prd=%d, cmp=%d, cnt=%d, "
"frq=%d, duty=%d.%d%%\r\n", ch, status.actual_ch_clk,
status.actual_period, status.actual_compare, status.actual_counter,
status.actual_freq, status.actual_duty/100, status.actual_duty%100);
list_index++;
if (list_index >= (sizeof(prd_cmp_list)/sizeof(prd_cmp_list[0]))) {
list_index = 0;
}
}
static void iot_epwm_kl3_test_case2_init(void)
{
uint8_t ch1;
uint8_t ch2;
iot_epwm_global_config_t global_config = IOT_EPWM_GLOBAL_CONFIG_DEFAULT;
iot_epwm_ch_config_t ch_config_default = IOT_EPWM_CHANNEL_CONFIG_DEFAULT;
iot_epwm_ch_config_t ch_config = {0};
iot_cus_printf("%s\r\n", __func__);
iot_pwm_api_mode_select(IOT_API_MODE_EPWM);
iot_epwm_global_stop();
global_config.clk_src = IOT_PWM_CLK_SRC_150M;
/* extern sync signal, take effect at rising adge.
Note: sync signal must be input to channel 0. */
global_config.ext_sync_pin = 31;
global_config.tz_pins[IOT_EPWM_TZ_1] = 69;
iot_epwm_global_config_set(&global_config);
/* config for channel 0 */
os_mem_cpy(&ch_config, &ch_config_default, sizeof(iot_epwm_ch_config_t));
ch1 = IOT_EPWM_CHANNEL_0;
ch_config.ch_clk_div = 150;
ch_config.ch_pin_outa = 4;
ch_config.ch_pin_outb = 0xFF;
ch_config.ch_polarity_outa = IOT_EPWM_POLARITY_NORMAL;
ch_config.ch_align_mode = IOT_EPWM_ALIGN_EDGE;
ch_config.ch_period_load_mode = IOT_EPWM_PERIOD_LOAD_CNT_EQU_ZERO;
ch_config.ch_duty_load_mode = IOT_EPWM_DUTY_LOAD_CNT_EQU_ZERO;
ch_config.ch_usage = IOT_EPWM_CH_USEAGE_PRECISE;
ch_config.ch_precise_cfg.period_cnt = 10000;
ch_config.ch_precise_cfg.compare_cnt = 5000;
ch_config.ch_sync_mode = IOT_EPWM_CH_SOC_SYNC;
ch_config.ch_phs_en = 1;
ch_config.ch_phase = 0;
ch_config.ch_trip_zone.enable = 1;
ch_config.ch_trip_zone.tz_en_for_osht[IOT_EPWM_TZ_1] = 1;
ch_config.ch_trip_zone.act_outa = IOT_EPWM_TZ_ACT_SET_HIGH;
ch_config.ch_trip_zone.act_outb = IOT_EPWM_TZ_ACT_SET_LOW;
ch_config.ch_trip_zone.callback_osht = kl3_epwm_isr_ch0_tz_osht;
ch_config.ch_socb.enable = 1;
ch_config.ch_socb.trigger = IOT_EPWM_SOC_TRIG_CNT_EQU_PRD;
ch_config.ch_socb.divider = 10;
ch_config.ch_socb.callback = kl3_epwm_isr_ch0_socb;
iot_epwm_ch_config_set(ch1, &ch_config);
/* config for channel 2 */
os_mem_cpy(&ch_config, &ch_config_default, sizeof(iot_epwm_ch_config_t));
ch2 = IOT_EPWM_CHANNEL_2;
ch_config.ch_clk_div = 150;
ch_config.ch_pin_outa = 7;
ch_config.ch_pin_outb = 0xFF;
ch_config.ch_polarity_outa = IOT_EPWM_POLARITY_NORMAL;
ch_config.ch_align_mode = IOT_EPWM_ALIGN_EDGE;
ch_config.ch_period_load_mode = IOT_EPWM_PERIOD_LOAD_CNT_EQU_ZERO;
ch_config.ch_duty_load_mode = IOT_EPWM_DUTY_LOAD_CNT_EQU_ZERO;
ch_config.ch_usage = IOT_EPWM_CH_USEAGE_PRECISE;
ch_config.ch_precise_cfg.period_cnt = 10000;
ch_config.ch_precise_cfg.compare_cnt = 5000;
ch_config.ch_sync_mode = IOT_EPWM_CH_SOC_SYNC;
ch_config.ch_phs_en = 1;
ch_config.ch_phase = 2000;
ch_config.ch_chopper.enable = 1;
ch_config.ch_chopper.divider = 1;
ch_config.ch_chopper.duty = 3;
ch_config.ch_chopper.osht_width = 10;
ch_config.ch_interrupt.enable = 1;
ch_config.ch_interrupt.trigger = IOT_EPWM_INT_TRIG_CNT_UP_EQU_CMPA;
ch_config.ch_interrupt.divider = 100;
ch_config.ch_interrupt.callback = kl3_epwm_isr_ch2_int;
iot_epwm_ch_config_set(ch2, &ch_config);
iot_epwm_global_sync();
iot_epwm_ch_start(ch1);
iot_epwm_ch_start(ch2);
iot_epwm_global_start();
}
/* auto duty enable. */
static void iot_epwm_kl3_test_case3_init(void)
{
uint8_t ch = IOT_EPWM_CHANNEL_3;
iot_epwm_global_config_t global_config = IOT_EPWM_GLOBAL_CONFIG_DEFAULT;
iot_epwm_ch_config_t ch_config = IOT_EPWM_CHANNEL_CONFIG_DEFAULT;
iot_cus_printf("%s\r\n", __func__);
iot_pwm_api_mode_select(IOT_API_MODE_EPWM);
iot_epwm_global_stop();
global_config.clk_src = IOT_PWM_CLK_SRC_25M;
iot_epwm_global_config_set(&global_config);
ch_config.ch_clk_div = 250;
ch_config.ch_pin_outa = 4;
ch_config.ch_pin_outb = 7;
ch_config.ch_polarity_outa = IOT_EPWM_POLARITY_INVERTED;
ch_config.ch_polarity_outb = IOT_EPWM_POLARITY_NORMAL;
ch_config.ch_usage = IOT_EPWM_CH_USEAGE_PRECISE;
ch_config.ch_precise_cfg.period_cnt = 1000;
ch_config.ch_align_mode = IOT_EPWM_ALIGN_EDGE;
ch_config.ch_auto_duty.enable = 1;
ch_config.ch_auto_duty.cmp_start = 100;
ch_config.ch_auto_duty.cmp_end = 1000;
ch_config.ch_auto_duty.cmp_step = 10;
iot_epwm_ch_config_set(ch, &ch_config);
iot_epwm_ch_start(ch);
iot_epwm_global_start();
}
/* dead band enable. */
static void iot_epwm_kl3_test_case4_init(void)
{
uint8_t ch = IOT_EPWM_CHANNEL_4;
iot_epwm_global_config_t global_config = IOT_EPWM_GLOBAL_CONFIG_DEFAULT;
iot_epwm_ch_config_t ch_config = IOT_EPWM_CHANNEL_CONFIG_DEFAULT;
iot_cus_printf("%s\r\n", __func__);
iot_pwm_api_mode_select(IOT_API_MODE_EPWM);
iot_epwm_global_stop();
global_config.clk_src = IOT_PWM_CLK_SRC_150M;
iot_epwm_global_config_set(&global_config);
ch_config.ch_clk_div = 150;
ch_config.ch_pin_outa = 4;
ch_config.ch_pin_outb = 7;
ch_config.ch_polarity_outa = IOT_EPWM_POLARITY_NORMAL;
ch_config.ch_polarity_outb = IOT_EPWM_POLARITY_INVERTED;
ch_config.ch_usage = IOT_EPWM_CH_USEAGE_PRECISE;
ch_config.ch_precise_cfg.period_cnt = 1000;
ch_config.ch_precise_cfg.compare_cnt = 500;
ch_config.ch_align_mode = IOT_EPWM_ALIGN_CENTER;
ch_config.ch_dead_band.enable = 1;
ch_config.ch_dead_band.rising_delay = 100;
ch_config.ch_dead_band.falling_delay = 200;
iot_epwm_ch_config_set(ch, &ch_config);
iot_epwm_ch_start(ch);
iot_epwm_global_start();
}
/* single pulse mode enable. */
static void iot_epwm_kl3_test_case5_init(void)
{
uint8_t ch = IOT_EPWM_CHANNEL_5;
iot_epwm_global_config_t global_config = IOT_EPWM_GLOBAL_CONFIG_DEFAULT;
iot_epwm_ch_config_t ch_config = IOT_EPWM_CHANNEL_CONFIG_DEFAULT;
iot_cus_printf("%s\r\n", __func__);
iot_pwm_api_mode_select(IOT_API_MODE_EPWM);
iot_epwm_global_stop();
global_config.clk_src = IOT_PWM_CLK_SRC_150M;
iot_epwm_global_config_set(&global_config);
ch_config.ch_clk_div = 15;
ch_config.ch_pin_outa = 4;
ch_config.ch_pin_outb = 7;
ch_config.ch_polarity_outa = IOT_EPWM_POLARITY_NORMAL;
ch_config.ch_polarity_outb = IOT_EPWM_POLARITY_INVERTED;
ch_config.ch_usage = IOT_EPWM_CH_USEAGE_COMMON;
ch_config.ch_common_cfg.freq = 1000;
ch_config.ch_common_cfg.duty = 5000;
ch_config.ch_align_mode = IOT_EPWM_ALIGN_EDGE;
ch_config.ch_single_pulse_en = 1;
iot_epwm_ch_config_set(ch, &ch_config);
iot_epwm_ch_start(ch);
iot_epwm_global_start();
}
static const void (*test_case_init_list[])(void) = {
iot_epwm_kl3_test_case1_init,
iot_epwm_kl3_test_case2_init,
iot_epwm_kl3_test_case3_init,
iot_epwm_kl3_test_case4_init,
iot_epwm_kl3_test_case5_init,
};
static const void (*test_case_update_list[])(void) = {
iot_epwm_kl3_test_case1_update,
iot_epwm_kl3_test_case2_update,
NULL,
NULL,
NULL,
};
#else
static const void (*test_case_init_list[])(void) = {};
static const void (*test_case_update_list[])(void) = {};
#endif
static void (*init_handler)(void) = NULL;
static void (*update_handler)(void) = NULL;
static iot_uart_h uart_epwm = NULL;
static uint32_t app_epwm_demo_uart_recv(uint8_t* buffer, uint32_t buffer_len,
bool_t is_full_frame, uint32_t invalid_data_len)
{
(void)is_full_frame;
(void)invalid_data_len;
char c = 0;
if (buffer_len > 0) {
c = buffer[0];
} else {
return ERR_OK;
}
/* Select test case n by char 'n' from uart, and char 'Q','q' or ESC to
stop the case. Any other char to update parameter.
To run another case, a power on reset is required.*/
if (init_handler == NULL) {
uint8_t index = c - '1';
if ((index < sizeof(test_case_init_list)/sizeof(test_case_init_list[0]))
&& (test_case_init_list[index] != NULL)) {
init_handler = test_case_init_list[index];
update_handler = test_case_update_list[index];
iot_cus_printf("Run test case %d.\r\n", index + 1);
init_handler();
}
}else {
if ('q' == c || 'Q' == c || 0x1B == c) {
/* press key Q or ESC to stop test case. */
iot_epwm_global_stop();
init_handler = NULL;
update_handler = NULL;
} else {
/* press any other key to update epwm config. */
if (NULL != update_handler) {
update_handler();
}
}
}
return ERR_OK;
}
static uint32_t app_epwm_demo_uart_init(void)
{
uint8_t port;
uint8_t port_name = UART_METER_PORT;
/* Get uart port for tranceiving data, not for printf() used. */
if((port = iot_board_get_uart(port_name)) >= iot_uart_get_max_port_num())
{
DEMO_ERROR("INVALID UART#%d !!", port, 2,3,4,5,6);
return ERR_FAIL;
}
if(NULL == (uart_epwm = iot_uart_open
(port, (iot_uart_recv_func_t)app_epwm_demo_uart_recv,
EPWM_DEMO_UART_RCV_BUF_LEN, NULL)))
{
DEMO_ERROR("OPEN UART#%d FAILED !!", port, 2,3,4,5,6);
return ERR_FAIL;
}
if (iot_uart_set_config(uart_epwm, EPWM_DEMO_UART_BAUND, 0, 8, 1)) {
iot_uart_set_threshold(uart_epwm, UART_THR_RXFULL, 1);
iot_uart_set_threshold(uart_epwm, UART_THR_NO_FMT_TIMEOUT, 20);
return ERR_OK;
}
return ERR_FAIL;
}
extern void iot_print_config(bool_t enable);
int app_demo_epwm_init(void)
{
int ret = ERR_FAIL;
/* Enable the customer-printf(). */
iot_cus_print_config(true);
iot_print_config(true);
do
{
if(ERR_OK != (ret = app_epwm_demo_uart_init())) {
DEMO_ERROR("UART INIT FAILED !!", 1,2,3,4,5,6);
break;
}
iot_cus_printf("Press 1~%d to select a test case:\r\n",
sizeof(test_case_init_list)/sizeof(test_case_init_list[0]));
if (NULL != init_handler) {
init_handler();
}
ret = ERR_OK;
}while(0);
return ret;
}
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