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一、简介AD16有4种唤醒事件，分别对应于JL_WAKEUP->CON0[3-0]，用户在选择对应的唤醒事件之后，可根据选择跳变沿和IO口进行唤醒，以实现外部中断效果，用户在使用该模块时需要注意与模块功能的复用。
注意！！！JL_WAKEUP模块的唤醒不同于PMU管理的低功耗唤醒，两种功能相互独立，在低功耗的情况下，中断无效。 二、示例代码链接三、详细代码及其实现/*JL_WAKEUP->CON0: * 0：IO-wkup * 1：IRFLT-wkup 与红外功能复用 * 2：uart0_rxas 与uart0_rx功能复用 * 3：uart1_rxas 与uart1_rx功能复用 * */ enum WAKEUP_SOURCE { WKUP_S_ICH_WKUP = 0, WKUP_S_IRFLT, WKUP_S_UART0_RXAS, WKUP_S_UART1_RXAS,}; enum WAKEUP_EDGE { PORT_WKUP_EDGE_RISE, PORT_WKUP_EDGE_FALL,};extern int gpio_ich_disable_input_signal(u32 gpio, enum INPUT_CH_SIGNAL signal, enum INPUT_CH_TYPE type);static u32 port_wkup_source_pfi[] = { INPUT_CH_SIGNAL_IRFLT, INPUT_CH_SIGNAL_IRFLT, PFI_UART0_RX, PFI_UART1_RX,};static void (*port_wkup_irq_cbfun[4])(u32 port, u32 edge) = {NULL};static u8 user_port[4] = {0};/** * @brief 引脚中断函数 */___interruptvoid port_wkup_irq_fun(void){ u8 wakeup_index = 0; //printf("png:0x%x\n", JL_WAKEUP->CON3); for (; wakeup_index < 4; wakeup_index++) { if (JL_WAKEUP->CON3 & BIT(wakeup_index)) { JL_WAKEUP->CON2 |= BIT(wakeup_index); if (port_wkup_irq_cbfun[wakeup_index]) { //printf(">"); port_wkup_irq_cbfun[wakeup_index](user_port[wakeup_index], (!!(JL_WAKEUP->CON1 & BIT(wakeup_index)))); } } }}/** * @brief 引脚中断初始化//注意功能复用 * @param port 任意引脚的引脚号：IO_PORTA_00...... * @param trigger_edge 触发边沿。 0：上升沿触发。 1；下降沿触发 * @param cbfun 相应的中断回调函数 */void port_wkup_info_init(){ static u8 init_flag = 1; if (init_flag) { memset((u8 *)user_port, 0xff, sizeof(user_port)); memset((u8 *)port_wkup_irq_cbfun, 0, sizeof(port_wkup_irq_cbfun)); init_flag = 0; }}int port_wkup_interrupt_init(u32 port, enum WAKEUP_SOURCE wkup_s, enum WAKEUP_EDGE trigger_edge, void (*cbfun)(u32 port, u32 edge)) //注意功能复用{ port_wkup_info_init(); if (JL_WAKEUP->CON0 & BIT(wkup_s)) { log_error("port wkup(%d) has been open.please close!\n", wkup_s); return -1; } if (trigger_edge == PORT_WKUP_EDGE_RISE) { JL_WAKEUP->CON1 &= ~BIT(wkup_s);//0:上升沿 gpio_set_direction(port, 1); gpio_set_die(port, 1); gpio_set_pull_up(port, 0); gpio_set_pull_down(port, 1); } else { JL_WAKEUP->CON1 |= BIT(wkup_s); gpio_set_direction(port, 1); gpio_set_die(port, 1); gpio_set_pull_up(port, 1); gpio_set_pull_down(port, 0); } if (wkup_s <= WKUP_S_IRFLT) { gpio_ich_sel_input_signal(port, port_wkup_source_pfi[wkup_s], INPUT_CH_TYPE_GP_ICH2); } else { gpio_set_fun_input_port(port, port_wkup_source_pfi[wkup_s]); } user_port[wkup_s] = port; if (cbfun) { port_wkup_irq_cbfun[wkup_s] = cbfun; } request_irq(IRQ_PORT_IDX, 3, port_wkup_irq_fun, 0); //注册中断函数 JL_WAKEUP->CON2 |= BIT(wkup_s); //清一次pnd JL_WAKEUP->CON0 |= BIT(wkup_s); //引脚中断使能 JL_WAKEUP->CON2 |= BIT(wkup_s); log_info("init ok:port:%d,wkup_s:%d\n", port, wkup_s); return 0;//ok}/** * @brief 关掉该引脚的中断功能 * @param port 引脚号：IO_PORTA_00...... */int port_wkup_interrupt_deinit(u32 port, enum WAKEUP_SOURCE wkup_s){ if (JL_WAKEUP->CON0 & BIT(wkup_s)) { if (port == user_port[wkup_s]) { JL_WAKEUP->CON0 &= ~BIT(wkup_s); gpio_set_direction(port, 1); gpio_set_die(port, 0); gpio_set_pull_up(port, 0); gpio_set_pull_down(port, 0); if (wkup_s <= WKUP_S_IRFLT) { gpio_ich_disable_input_signal(port, port_wkup_source_pfi[wkup_s], INPUT_CH_TYPE_GP_ICH0); } else { gpio_disable_fun_input_port(port_wkup_source_pfi[wkup_s]); } gpio_disable_fun_input_port(port_wkup_source_pfi[wkup_s]); user_port[wkup_s] = 0xff; port_wkup_irq_cbfun[wkup_s] = NULL; } else { log_error("%s parameter:port error!\n", __func__); return -2; } } else { log_error("port wkup source:%d has been closed!\n", wkup_s); return -3; } return 0;}//切换边沿int port_wkup_interrupt_change_edge(enum WAKEUP_SOURCE wkup_s, enum WAKEUP_EDGE trigger_edge){ if ((JL_WAKEUP->CON0 & BIT(wkup_s)) == 0) { log_error("port wkup(%d) has been close.please open!\n", wkup_s); return -1; } if (trigger_edge == PORT_WKUP_EDGE_RISE) { JL_WAKEUP->CON1 &= ~BIT(wkup_s);//0:上升沿 gpio_set_direction(user_port[wkup_s], 1); gpio_set_die(user_port[wkup_s], 1); gpio_set_pull_up(user_port[wkup_s], 0); gpio_set_pull_down(user_port[wkup_s], 1); } else { JL_WAKEUP->CON1 |= BIT(wkup_s); gpio_set_direction(user_port[wkup_s], 1); gpio_set_die(user_port[wkup_s], 1); gpio_set_pull_up(user_port[wkup_s], 1); gpio_set_pull_down(user_port[wkup_s], 0); } return 0;}//切换回调函数int port_wkup_interrupt_change_cbfun(enum WAKEUP_SOURCE wkup_s, void (*cbfun)(u32 port, u32 edge)){ if ((JL_WAKEUP->CON0 & BIT(wkup_s)) == 0) { log_error("port wkup(%d) has been close.please open!\n", wkup_s); return -1; } if (cbfun) { port_wkup_irq_cbfun[wkup_s] = cbfun; } return 0;}/********************************************************************************************************* * ****************************** 使用举例如下 *************************************** * ******************************************************************************************************/#if 1static void _ich_wkup(u32 port, u32 edge){ printf("%s\n", __func__);}//void _irflt_wkup(u32 port, u32 edge)//{// printf("%s\n", __func__);//}//void _ut0_wkup(u32 port, u32 edge)//{// printf("%s\n", __func__);//}//void _ut1_wkup(u32 port, u32 edge)//{// printf("%s\n", __func__);//}void wdt_clear(void);void port_wkup_test(){ port_wkup_interrupt_init(IO_PORTA_03, WKUP_S_ICH_WKUP, PORT_WKUP_EDGE_RISE, _ich_wkup);//上升沿触发 port_wkup_interrupt_init(IO_PORTA_04, WKUP_S_IRFLT, PORT_WKUP_EDGE_FALL, _irflt_wkup);//下降沿触发 port_wkup_interrupt_init(IO_PORTA_05, WKUP_S_UART0_RXAS, PORT_WKUP_EDGE_FALL, _ut0_wkup);//下降沿触发 port_wkup_interrupt_init(IO_PORTA_02, WKUP_S_UART1_RXAS, PORT_WKUP_EDGE_FALL, _ut1_wkup);//下降沿触发 port_wkup_interrupt_deinit(IO_PORTC_05, WKUP_S_ICH_WKUP); port_wkup_interrupt_deinit(IO_PORTA_03, WKUP_S_ICH_WKUP); while (1) { wdt_clear(); }}
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发表于 2023-7-7 16:24:16
