250kbps PHY Coded in NRF52832 BLE Mesh

RE: 250kbps PHY Coded in NRF52832 BLE Mesh

bivay — Thu, 05 Dec 2019 13:35:19 GMT

Thank for your kind support.

RE: 250kbps PHY Coded in NRF52832 BLE Mesh

Joakim Jakobsen — Thu, 05 Dec 2019 11:53:53 GMT

[quote user="bivay"]There is only define NRF52_SERIES for 62K5BIT. not NRF52840 only[/quote]

This is because we now have several devices in the nRF52-series that supports Long Range, not only the nRF52840.

The nRF52832 however, does not.

RE: 250kbps PHY Coded in NRF52832 BLE Mesh

Joakim Jakobsen — Thu, 05 Dec 2019 11:52:47 GMT

Hi.

No, I'm afraid you can't. As you can see from the comment, the RADIO_MODE_NRF_250KBIT is Deprecated.

RE: 250kbps PHY Coded in NRF52832 BLE Mesh

bivay — Thu, 05 Dec 2019 07:37:32 GMT

In SDK 15.2.0
radio_config.h
at line 103, there is define
RADIO_MODE_NRF_250KBIT in radio_mode_t

typedef enum
{
RADIO_MODE_NRF_1MBIT, /*!< Proprietary 1Mbit/s mode*/
RADIO_MODE_NRF_2MBIT, /*!< High data rate */
RADIO_MODE_NRF_250KBIT, /*!< Deprecated */
RADIO_MODE_BLE_1MBIT, /*!< BLE 1Mbit/s mode*/
#ifdef NRF52_SERIES
RADIO_MODE_BLE_2MBIT, /*!< BLE high data rate */
RADIO_MODE_NRF_62K5BIT, /*!< Long range */
#endif
RADIO_MODE_END
} radio_mode_t;

Can I use 250KBIT?
There is only define NRF52_SERIES for 62K5BIT. not NRF52840 only(as in many cases it is specially define).

Or
Is there option to use low data rate to increase range in NRF52832?

RE: 250kbps PHY Coded in NRF52832 BLE Mesh

Joakim Jakobsen — Mon, 02 Dec 2019 13:50:35 GMT

I'm sorry. I missed that you are using the nRF52832.

The nRF52832 does not support Long Range (Coded PHY). You will need to use the nRF52840 in order to test Coded PHY.

Br,
Joakim

RE: 250kbps PHY Coded in NRF52832 BLE Mesh

bivay — Mon, 02 Dec 2019 12:56:26 GMT

But there is not information about I would I define "RADIO_PCNF0_PLEN_LongRange "?

and my other question : NRF Mesh Android App supports different phy cod like 62.5kbps or 125kbps as said before.

RE: 250kbps PHY Coded in NRF52832 BLE Mesh

Joakim Jakobsen — Mon, 02 Dec 2019 12:46:43 GMT

Hi.

From the ticket i linked to:
"Please note that the long range mode is mislabeled. It is called RADIO_MODE_NRF_62K5BIT in the header file, but corresponds to the 125kbps BLE long range mode instead. "

In the answer from Hung, there should be an explanation to how to test using Coded PHY.

Br,
Joakim

RE: 250kbps PHY Coded in NRF52832 BLE Mesh

bivay — Mon, 02 Dec 2019 09:45:24 GMT

62.5kbps is available for long range as suggest in above link.
But in

NRF_RADIO->PCNF0 |=(
 
                 ((RADIO_PCNF0_PLEN_LongRange << RADIO_PCNF0_PLEN_Pos) & RADIO_PCNF0_PLEN_Msk) |
                 ((2 << RADIO_PCNF0_CILEN_Pos) & RADIO_PCNF0_CILEN_Msk) |
                 ((3 << RADIO_PCNF0_TERMLEN_Pos) & RADIO_PCNF0_TERMLEN_Msk) );

RADIO_PCNF0_PLEN_LongRange and other two, how to define them.
will I find unprovisioned node in NRF Mesh if I use 62.5kbps?

RE: 250kbps PHY Coded in NRF52832 BLE Mesh

Joakim Jakobsen — Mon, 02 Dec 2019 06:37:46 GMT

Hi.

There is no 250kbit mode for the nRF52-series. You are right there is a deprecated 250kbps legacy mode on the nRF52832, but it's not qualified and tested to be backwards compatible.

If you want to test 125kbit (Coded PHY), you can take a look at this previous ticket:
https://devzone.nordicsemi.com/f/nordic-q-a/29813/change-phy-in-mesh

Best regards,
Joakim