How to send data from flash memory to ble?

RE: How to send data from flash memory to ble?

Newbie — Fri, 16 Jun 2017 08:35:45 GMT

Hello Kristin, I have downloaded code ble_app_uart_test_throughput.zip from devzone.nordicsemi.com/.../. I think this is what you were trying to suggest me. Now my only challenge is that my function data_send gives me error as conflicting types for data_send and when I call this function like below

 case BLE_EVT_TX_COMPLETE:
        if(m_nus.is_notification_enabled == true)
					{
						err_code = sd_nvic_SetPendingIRQ(DATA_SEND_IRQn);
						APP_ERROR_CHECK(err_code);
						data_send();
					}
        break;

It gives me error as "implicit declaration of function" Thanks, Shailav

RE: How to send data from flash memory to ble?

Newbie — Thu, 15 Jun 2017 08:02:23 GMT

I am following your blog devzone.nordicsemi.com/.../ I think my application is similar to this. Could you please help me to build my code using this blog or suggest me code snippet to add. Thanks, Shailav

RE: How to send data from flash memory to ble?

FormerMember — Wed, 14 Jun 2017 12:32:31 GMT

For how to transfer the data (fast), I would recommend you to take a look the example ble_app_uart, and specifically how the function ble_nus_string_send() is being called and how its errors are handled.

RE: How to send data from flash memory to ble?

Newbie — Wed, 14 Jun 2017 06:56:16 GMT

Hello, I have solved the challenge of mcu rest. Now the only challenge is of sending the 4k samples over ble. Thanks, Shailav

RE: How to send data from flash memory to ble?

Newbie — Tue, 13 Jun 2017 12:51:02 GMT

Hello Kristin, I opened that case for reset challenge. But I am also looking for solution for sending the data out through ble as mentioned above. Thanks, Shailav

RE: How to send data from flash memory to ble?

FormerMember — Tue, 13 Jun 2017 12:45:52 GMT

I see that you also have a case open in myPage, please continue there. In addition, please avoid to make duplicates here on devzone: devzone.nordicsemi.com/.../

RE: How to send data from flash memory to ble?

Newbie — Tue, 13 Jun 2017 12:42:51 GMT

It returns 0.

RE: How to send data from flash memory to ble?

FormerMember — Tue, 13 Jun 2017 11:17:30 GMT

Which error code does sd_ble_gap_adv_start() return?

RE: How to send data from flash memory to ble?

Newbie — Mon, 12 Jun 2017 07:21:01 GMT

Hello Kristin, In the previous case you helped me out to use FDS and I was able to write and read the data.

This function writes 4k samples in memory.

	while(count!=4000)
{
	tmp = 280;
read_sensor_data(0x02, 0,(uint8_t*)&tmp, sizeof(tmp));
tmp = (tmp/10);
err_code =fds_test_write(tmp);
	APP_ERROR_CHECK(err_code);
	nrf_delay_ms(2000);

count++; }

My below function reads samples

//wait until the write is finished. while (write_flag==0); err_code = fds_read(); APP_ERROR_CHECK(err_code);

Now after the above function I am adding

advertising_start(); But this time my pca10028 doesnt advertise.

Also I am looking for suggestions on how to send 4000 samples to nrf app using ble.

I have attached my code. It would be great if you could test at your end suggest me changes in the same.

Thanks, Shailav

RE: How to send data from flash memory to ble?

FormerMember — Mon, 12 Jun 2017 06:57:00 GMT

The example ble_app_hrs-fds-test-github.zip in this answer shows how to use FDS when the softdevice is enabled, I would recommend you to take a look at it. It shows how to write and read data from flash.