193 lines
4.7 KiB
C
193 lines
4.7 KiB
C
/******************************************************************************
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* @file bsp_zc.c
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* @brief PA1 过零：MCPWM FPIN 双沿中断，沿到则回调切继电器
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* @author cyWu <1917507415@qq.com>
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* @date 2026.09.04
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* @version V3.1.0
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* @history
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* - V3.1.0, 2026.09.04, cyWu, 状态收进 BspZcCtx_t，去掉无用计数与排障史注释
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* - V3.0.0, 2026.09.04, cyWu, MCPWM FPIN 硬件边沿中断
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******************************************************************************/
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#include "system/includes.h"
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#include "asm/gpio.h"
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#include "asm/mcpwm.h"
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#include "asm/hwi.h"
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#include "asm/irq.h"
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#include "asm/timer.h"
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#include "bsp_zc.h"
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#include "board_pin.h"
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#include <string.h>
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#define LOG_TAG_CONST APP
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#define LOG_TAG "[BSP_ZC]"
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#define LOG_INFO_ENABLE
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#include "debug.h"
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extern PWM_CH_REG *get_pwm_ch_reg(pwm_ch_num_type index);
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typedef struct {
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BspZcEdgeCb_t edge_cb;
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volatile uint32_t edge_cnt;
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volatile uint32_t last_edge_ms;
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volatile uint8_t last_level;
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uint8_t initialized;
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} BspZcCtx_t;
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static BspZcCtx_t s_zc;
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/**
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* @brief FPIN 边沿 ISR：清 pending、记沿、执行切变回调
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* @note 中断上下文：禁止 printf / 写 VM / 切 BLE
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* @return 无
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*/
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___interrupt
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static void bsp_zc_interrupt(void)
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{
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if (JL_MCPWM->CH0_CON1 & BIT(15)) {
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JL_MCPWM->CH0_CON1 |= BIT(14);
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} else if (JL_MCPWM->CH1_CON1 & BIT(15)) {
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JL_MCPWM->CH1_CON1 |= BIT(14);
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} else if (JL_MCPWM->CH2_CON1 & BIT(15)) {
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JL_MCPWM->CH2_CON1 |= BIT(14);
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} else if (JL_MCPWM->CH3_CON1 & BIT(15)) {
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JL_MCPWM->CH3_CON1 |= BIT(14);
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} else {
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return;
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}
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s_zc.edge_cnt++;
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s_zc.last_edge_ms = (uint32_t)timer_get_ms();
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s_zc.last_level = (uint8_t)gpio_read(BOARD_ZC_PIN);
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if (s_zc.edge_cb) {
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s_zc.edge_cb();
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}
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}
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/**
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* @brief 把 PA1 接到一个 FPIN 通道（上升沿或下降沿）
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* @param index FPIN 通道 0~3
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* @param rising 1=上升沿，0=下降沿
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* @return 无
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*/
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static void bsp_zc_fpin_channel_init(u8 index, u8 rising)
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{
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PWM_CH_REG *pwm_reg;
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if (index > 3) {
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return;
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}
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if (rising) {
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JL_MCPWM->FPIN_CON |= BIT(16 + index);
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} else {
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JL_MCPWM->FPIN_CON &= ~BIT(16 + index);
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}
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#if BOARD_ZC_FPIN_FILTER_EN
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JL_MCPWM->FPIN_CON |= BIT(8 + index);
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JL_MCPWM->FPIN_CON |= ((u32)BOARD_ZC_FPIN_FILTER & 0x3FUL);
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#else
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JL_MCPWM->FPIN_CON &= ~BIT(8 + index);
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#endif
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gpio_ich_sel_iutput_signal(BOARD_ZC_PIN,
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(enum INPUT_CH_SIGNAL)(INPUT_CH_SIGNAL_MC_FPIN0 + index),
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INPUT_CH_TYPE_GP_ICH);
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request_irq(IRQ_MCPWM_CHX_IDX, 3, bsp_zc_interrupt, 0);
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pwm_reg = get_pwm_ch_reg((pwm_ch_num_type)index);
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pwm_reg->ch_con1 = BIT(14) | BIT(11) | BIT(4) | (index << 0);
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JL_MCPWM->MCPWM_CON0 |= BIT(index);
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}
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/**
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* @brief 初始化 PA1 输入并挂双沿 FPIN 中断
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* @param cb 沿回调，NULL 则只计数
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* @return 无
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*/
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void bsp_zc_init(BspZcEdgeCb_t cb)
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{
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if (s_zc.initialized) {
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return;
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}
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memset(&s_zc, 0, sizeof(s_zc));
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s_zc.edge_cb = cb;
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gpio_set_die(BOARD_ZC_PIN, 1);
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gpio_set_direction(BOARD_ZC_PIN, 1);
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gpio_set_pull_up(BOARD_ZC_PIN, BOARD_ZC_PULL_UP);
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gpio_set_pull_down(BOARD_ZC_PIN, BOARD_ZC_PULL_DOWN);
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s_zc.last_level = (uint8_t)gpio_read(BOARD_ZC_PIN);
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#if BOARD_ZC_USE_IRQ
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bsp_zc_fpin_channel_init((u8)BOARD_ZC_FPIN_FALL_CH, 0);
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#if BOARD_ZC_FPIN_BOTH_EDGE
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bsp_zc_fpin_channel_init((u8)BOARD_ZC_FPIN_RISE_CH, 1);
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#endif
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#endif
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s_zc.initialized = 1;
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log_info("zc init irq=%d fall=%d rise=%d filt=%d lvl=%d\n",
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BOARD_ZC_USE_IRQ, BOARD_ZC_FPIN_FALL_CH,
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#if BOARD_ZC_FPIN_BOTH_EDGE
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BOARD_ZC_FPIN_RISE_CH,
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#else
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-1,
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#endif
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BOARD_ZC_FPIN_FILTER_EN, (int)s_zc.last_level);
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}
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/**
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* @brief 1ms 软件采样兜底（须由真实 1ms 定时器调用）
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* @return 无
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*/
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void bsp_zc_scan_1ms(void)
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{
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uint8_t lvl;
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if (!s_zc.initialized) {
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return;
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}
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lvl = (uint8_t)gpio_read(BOARD_ZC_PIN);
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if (lvl != s_zc.last_level) {
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s_zc.last_level = lvl;
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s_zc.edge_cnt++;
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s_zc.last_edge_ms = (uint32_t)timer_get_ms();
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if (s_zc.edge_cb) {
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s_zc.edge_cb();
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}
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}
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}
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/**
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* @brief 累计过零沿次数
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* @return 沿计数
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*/
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uint32_t bsp_zc_edge_count(void)
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{
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return s_zc.edge_cnt;
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}
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/**
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* @brief 最近一次沿的时间戳
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* @return timer_get_ms()，0=从未检测到
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*/
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uint32_t bsp_zc_last_edge_ms(void)
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{
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return s_zc.last_edge_ms;
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}
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/**
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* @brief 当前 PA1 电平
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* @return 0 或 1
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*/
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uint8_t bsp_zc_level(void)
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{
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return (uint8_t)gpio_read(BOARD_ZC_PIN);
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}
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