硬件进入deep_retention_16k模式，唤醒源问题

wx_5701358130

void sensor_deep_sleep()
{
    run_state = SWITCH_SCAN;
    // bls_ll_setAdvEnable(BLC_ADV_DISABLE);
    int ret = cpu_sleep_wakeup(DEEPSLEEP_MODE_RET_SRAM_LOW16K,  PM_WAKEUP_PAD | PM_WAKEUP_TIMER, clock_time() + 200 * CLOCK_16M_SYS_TIMER_CLK_1S);
    printf("16K:%d\r\n", ret);
    for (u8 i = 0; i < KEY_NUM; i ++)
    {
        if(gpio_read(key_list))
            continue;
        cpu_set_gpio_wakeup (key_list, 1, 1);  // reverse stuck key pad wakeup level
        bls_pm_setWakeupSource(PM_WAKEUP_PAD);  //gpio PAD wakeup deesleep
        cpu_sleep_wakeup(DEEPSLEEP_MODE_RET_SRAM_LOW16K,  PM_WAKEUP_PAD | PM_WAKEUP_TIMER, clock_time() + 10 * CLOCK_16M_SYS_TIMER_CLK_1S);
    }
   
}
void sensor_suspend(void)
{
    int ret = cpu_sleep_wakeup(SUSPEND_MODE, PM_WAKEUP_TIMER, 500 * 1000);
    printf("suspend:%d\r\n", ret);
}
调用：
void ble_stk_sleep_callback()
{
    if (SWITCH_BROADCAST == run_state)
    {
        // 数据广播模式发送完成后进入深度睡眠
        if (++msg_send_count >= MSG_SEND_PACKET_NUM)
        {
            sensor_suspend();
            sensor_deep_sleep();
        }
    }
}
代码如上，我设置了六个独立按键IO口作为唤醒源，低电平唤醒。进入低功耗时，调用cpu_sleep_wakeup函数的返回值为STATUS_GPIO_ERR_NO_ENTER_PM 时，翻转卡键的唤醒电平状态进入睡眠。我交替的去按下按键，会出现芯片睡眠以后，IO口无法唤醒，只能通过定时器200s唤醒

TL_SW

这里顺序错了。先设置唤醒PAD，再进入睡眠。