Hi, i am trying to increase the transfer speed using the UART ove BLE application

RE: Hi, i am trying to increase the transfer speed using the UART ove BLE application

awneil — Thu, 06 Jun 2019 15:24:39 GMT

The more important question was

Did you read & follow through the tutorials?

RE: Hi, i am trying to increase the transfer speed using the UART ove BLE application

jrubiralta — Thu, 06 Jun 2019 15:19:35 GMT

Sorry

void read_events_poll(void){
	
	__ALIGN(4) uint8_t evt_buffer[NRF_SDH_BLE_EVT_BUF_SIZE];
	ble_evt_t * p_ble_evt;
	uint16_t     evt_len = (uint16_t)sizeof(evt_buffer);

	ret_code_t ret_code = sd_ble_evt_get(evt_buffer, &evt_len);
	if (ret_code != NRF_SUCCESS)
		return;
	p_ble_evt = (ble_evt_t *)evt_buffer;
	nrf_section_iter_t  iter;
	for (nrf_section_iter_init(&iter, &sdh_ble_observers);
		 nrf_section_iter_get(&iter) != NULL;
		 nrf_section_iter_next(&iter))
	{
		nrf_sdh_ble_evt_observer_t * p_observer;
		nrf_sdh_ble_evt_handler_t    handler;

		p_observer = (nrf_sdh_ble_evt_observer_t *)nrf_section_iter_get(&iter);
		handler    = p_observer->handler;

		handler(p_ble_evt, p_observer->p_context);
	}
}

int main(void)
{
    bool erase_bonds;

    // Initialize.
    uart_init();
    log_init();
    timers_init();
    buttons_leds_init(&erase_bonds);
    power_management_init();
    ble_stack_init();
    gap_params_init();
    gatt_init();
    services_init();
    advertising_init();
    conn_params_init();

    // Start execution.
    // printf("\r\nUART started.\r\n");
    NRF_LOG_INFO("Debug logging for UART over RTT started.");
    advertising_start();

    // Enter main loop.
    for (;;)
    {
		read_events_poll();
		sd_app_evt_wait();
    }
}

RE: Hi, i am trying to increase the transfer speed using the UART ove BLE application

awneil — Thu, 06 Jun 2019 15:14:55 GMT

Did you read & follow through the tutorials?

How to properly post source code:

RE: Hi, i am trying to increase the transfer speed using the UART ove BLE application

jrubiralta — Thu, 06 Jun 2019 15:02:35 GMT

Helo, I have added 2 charactheristcs. I write the 3 charactheristics in the phone. I read the ble event poll in the main application and normaly only one charactheristic arrives. Some times arrives 2 charactheristics and somtime arrives 3 charactheristics.
Can i write more than 1 charactheristic at a time?

void read_events_poll(void){

   __ALIGN(4) uint8_t evt_buffer[NRF_SDH_BLE_EVT_BUF_SIZE];
   ble_evt_t * p_ble_evt;
   uint16_t     evt_len = (uint16_t)sizeof(evt_buffer);

   ret_code_t ret_code = sd_ble_evt_get(evt_buffer, &evt_len);
   if (ret_code != NRF_SUCCESS)
       return;
   p_ble_evt = (ble_evt_t *)evt_buffer;
   nrf_section_iter_t iter;
   for (nrf_section_iter_init(&iter, &sdh_ble_observers);
       nrf_section_iter_get(&iter) != NULL;
       nrf_section_iter_next(&iter))
   {
       nrf_sdh_ble_evt_observer_t * p_observer;
       nrf_sdh_ble_evt_handler_t    handler;

       p_observer = (nrf_sdh_ble_evt_observer_t *)nrf_section_iter_get(&iter);
       handler    = p_observer->handler;

       handler(p_ble_evt, p_observer->p_context);
   }
}

// Enter main loop.
    for (;;)
    {
       read_events_poll();
       sd_app_evt_wait();
        idle_state_handle();
    }

RE: Hi, i am trying to increase the transfer speed using the UART ove BLE application

awneil — Wed, 05 Jun 2019 13:54:41 GMT

Have you read the tutorials on adding custom services & characteristics?

It's in there ...

https://devzone.nordicsemi.com/nordic/short-range-guides/b/bluetooth-low-energy/posts/ble-services-a-beginners-tutorial

https://devzone.nordicsemi.com/nordic/short-range-guides/b/bluetooth-low-energy/posts/ble-characteristics-a-beginners-tutorial

RE: Hi, i am trying to increase the transfer speed using the UART ove BLE application

jrubiralta — Wed, 05 Jun 2019 13:44:25 GMT

Ok, i woul like to try it, How can i increase the memoty stach?

RE: Hi, i am trying to increase the transfer speed using the UART ove BLE application

jrubiralta — Wed, 05 Jun 2019 13:43:14 GMT

Ok,

RE: Hi, i am trying to increase the transfer speed using the UART ove BLE application

jrubiralta — Wed, 05 Jun 2019 13:43:13 GMT

Ok,

RE: Hi, i am trying to increase the transfer speed using the UART ove BLE application

jrubiralta — Wed, 05 Jun 2019 13:43:12 GMT

Ok,

RE: Hi, i am trying to increase the transfer speed using the UART ove BLE application

awneil — Wed, 05 Jun 2019 13:16:41 GMT

No - I don't think that's going to work.

You still only have the same single BLE radio link - adding more characteristics doesn't increase the capacity of the BLE link!

RE: Hi, i am trying to increase the transfer speed using the UART ove BLE application

jrubiralta — Wed, 05 Jun 2019 13:08:15 GMT

In normal opperation, the transfer speed is enauth.

When i need to update my firmware, i need biger speed.

I want to write several charactheristic at the same time to reduce the time to answer the ACK to the phone.

With one RX charactheristic, i can send 240 bytes.

With 4 RX charactheristics, i can send 240 * 8 = 1920 bytes.

The BLE Data rate is 1Mb. This means that i can send several charactheristics at the same time.

Is this possible?

Sorry, mi device id nrf52832

RE: Hi, i am trying to increase the transfer speed using the UART ove BLE application

awneil — Wed, 05 Jun 2019 12:51:14 GMT

...

[quote userid="80347" url="~/f/nordic-q-a/48204/hi-i-am-trying-to-increase-the-transfer-speed-using-the-uart-ove-ble-application"]I need to increas the speed using the UART ove BLE[/quote]

From what? To what?

Remember that the specific design goal of BLE, as the name suggests, is Low Energy - not high-speed or high-volume data transfer.

Often, it is the phone which limits the throughput.

[quote userid="80347" url="~/f/nordic-q-a/48204/hi-i-am-trying-to-increase-the-transfer-speed-using-the-uart-ove-ble-application"]I try to add new characheristics[/quote]

How would that help?

That seems to be an entirely unrelated question to the topic title?