How can I use 2 or more PPI channels to control 1GPIO?

Hello 

I would like use at least 2PPI channels to control a GPIO.

If PPI CH0&CH1 both setup, then GPIO_CTL just go high.

If PPI CH0 remarked, then GPIO_CTL go low

How to use 2ppi to control 1gpio?

The code as below

    uint32_t PPI_evt_addr;
    uint32_t PPI_task_addr;
    nrf_ppi_channel_t ppi_channel;	
	/* PPI CHANNEL0 SETUP	*/
	ppi_channel=NRF_PPI_CHANNEL0;
	nrf_drv_gpiote_out_config_t config_1=GPIOTE_CONFIG_OUT_TASK_HIGH;
    nrf_drv_gpiote_out_init(GPIO_CTL , &config_1);					
    nrf_drv_ppi_channel_alloc(&ppi_channel);														

	PPI_evt_addr = nrf_drv_timer_event_address_get(&TIMER1, NRF_TIMER_EVENT_COMPARE0);
    PPI_task_addr = nrf_drv_gpiote_out_task_addr_get(GPIO_CTL);								

    nrf_drv_ppi_channel_assign(ppi_channel, PPI_evt_addr, PPI_task_addr);
    nrf_drv_ppi_channel_enable(ppi_channel);							
    nrf_drv_gpiote_out_task_enable(GPIO_CTL);							

	/* PPI CHANNEL1 SETUP	*/
	ppi_channel=NRF_PPI_CHANNEL1;
	nrf_drv_gpiote_out_config_t config_0=GPIOTE_CONFIG_OUT_TASK_LOW;			
    nrf_drv_gpiote_out_init(GPIO_CTL , &config_0);								
    nrf_drv_ppi_channel_alloc(&ppi_channel);
		
    PPI_evt_addr = nrf_drv_timer_event_address_get(&TIMER2, NRF_TIMER_EVENT_COMPARE0);
    PPI_task_addr = nrf_drv_gpiote_out_task_addr_get(GPIO_CTL);						

    nrf_drv_ppi_channel_assign(ppi_channel, PPI_evt_addr, PPI_task_addr);
    nrf_drv_ppi_channel_enable(ppi_channel);							
    nrf_drv_gpiote_out_task_enable(GPIO_CTL);							

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