Enable Coded PHY (Long Range) for Peripheral Blinky code

RE: Enable Coded PHY (Long Range) for Peripheral Blinky code

MartinBL — Mon, 16 Jul 2018 17:59:20 GMT

Yes you need another PCA10056 or a different IC that support BLE with Coded phy. Please refer to these blog posts for more info about BLE 5 and coded phy:

To boost the range you should max out the TX power. The nRF52840 IC on the pCA10056 supports up to +8 dBm output power while the nRF52832 on the PCA10036 only supports 4 dBm. If you are using a softdevice you can use the function sd_ble_gap_tx_power_set() to set the output power.

Here is an informative blog post on range: Tested by Nordic: Bluetooth Long Range.

RE: Enable Coded PHY (Long Range) for Peripheral Blinky code

jayesh — Mon, 16 Jul 2018 10:45:57 GMT

Hi,

So if i want to test Coded PHY long range, it can only be done using other PCA10056 board?? Is there any other medium??

One more question, If i need to perform range test of nRF52832 vs nRF52840 what configuration i should set?

I tried Blinky code form SDK11 for PCA10036 and SDK15 for PCA10056 with same configurations. I found both of them had same range. What configuration i can change for PCA10056 to get long range. ADV interval and Tx Power should be same for both boards. Any changes other then that ?

Thanks,

Jayesh

RE: Enable Coded PHY (Long Range) for Peripheral Blinky code

MartinBL — Mon, 16 Jul 2018 10:25:26 GMT

Hi,

Your phone probably doesn't support coded phy so you can't expect to see any coded phy devices showing up in your app. I'm not aware of any phones that support it yet, and only a few phones currently support 2Mbps.

RE: Enable Coded PHY (Long Range) for Peripheral Blinky code

jayesh — Mon, 16 Jul 2018 07:11:34 GMT

Hello Martin,

Thanks for your quick reply, above thing worked now my code is running successfully. There are no error and i can see UART message of "Blinky example started"

But strange thing is i can't see my device advertisement in BLE scanner app when PHY coded is enabled. Is there any other thing i need to take care off??

Does it has dependency over Phone ??

Thanks,

Jayesh

RE: Enable Coded PHY (Long Range) for Peripheral Blinky code

MartinBL — Fri, 13 Jul 2018 15:21:33 GMT

I'm betting your bug is here:

.filter_policy = BLE_GAP_ADV_FP_ANY,
.interval      = APP_ADV_DURATION, // <- BUG? INTERVAL NOT DURATION
.duration      = 0,

You have effectively set the advertising interval to 0, which is not allowed and hence the function returns error 7 (NRF_ERROR_INVALID_PARAM).

RE: Enable Coded PHY (Long Range) for Peripheral Blinky code

jayesh — Fri, 13 Jul 2018 13:22:27 GMT

Enabling DEBUG i can see exact error details. It shows ERROR 7 for "sd_ble_gap_adv_set_configure" function.