pc-ble-driver connectivity increase MTU size

RE: pc-ble-driver connectivity increase MTU size

benjamin.forest — Mon, 15 Jun 2020 12:55:18 GMT

I think it does not works with SDK16. pc-ble-driver-py is stuck to softdevice api 5.
I had to use SDK15.3 and follow more or less this link to had a working connectivity firmware

RE: pc-ble-driver connectivity increase MTU size

benjamin.forest — Mon, 08 Jun 2020 11:41:54 GMT

Thanks a lot for your answer, I didn't saw it. It explains things. But As far as I understood, pre-compiled connectivity firmware is limited to an MTU of 250. Do you confirm ? IIs there a way to contourn this limitation ?

All the best,

RE: pc-ble-driver connectivity increase MTU size

Sigurd — Mon, 11 May 2020 14:58:31 GMT

pc-ble-driver-py is using SD API v5. SDK 16 connectivity project cannot be used with pc-ble-driver-py .use e.g. serial_port_enum.py to flash the pre-compiled connectiviy firmware.E.g.

python serial_port_enum.py NRF52 COM42

RE: pc-ble-driver connectivity increase MTU size

CheMax — Thu, 07 May 2020 09:30:41 GMT

for SDK16 version is this patch not relevant anymore? or is it still necessary to apply it?

RE: pc-ble-driver connectivity increase MTU size

benjamin.forest — Thu, 07 May 2020 08:49:13 GMT

Hi, thanks for this answer.

I have the exact same problem using SDK 16, and pca10040 devkit. I tried to compile connectivity uart example, then ran it without success (ie pc-ble-driver-py says Failed to open. Error code: NRF_ERROR_TIMEOUT), Am I missing something ? Is there still a patch or something to apply on this sdk version ? Launching it with debugger it did not crash with error about ram section for soft device too small, is this normal ?

All the best,

RE: pc-ble-driver connectivity increase MTU size

Sigurd — Mon, 28 Oct 2019 08:59:17 GMT

Hi,

For pc-ble-driver I believe you should actually use the pca10056\ser_s140_usb_hci project, also for the dongle. The firmware(after being patched) has this BOARD_DETECTION functionality were it's using the qspi to detect if it's running on the DK or the dongle automatically.

RE: pc-ble-driver connectivity increase MTU size

figsys100 — Mon, 21 Oct 2019 15:33:34 GMT

Thanks! I am trying to build pca10059\ser_s140_usb_hci\ses (USB Dongle) with no changes in the patched SDK and am encountering the following error:

Building ‘ble_connectivity_s140_usb_hci_pca10059’ from solution ‘ble_connectivity_s140_usb_hci_pca10059’ in configuration ‘Debug’

..

Compiling ‘main.c’
main.c
'BSP_QSPI_SCK_PIN' undeclared (first use in this function)
in expansion of macro 'QSPI_PIN_SCK'
in expansion of macro 'NRFX_QSPI_PIN_SCK'
in expansion of macro 'NRFX_QSPI_DEFAULT_CONFIG'
in expansion of macro 'NRF_DRV_QSPI_DEFAULT_CONFIG'
each undeclared identifier is reported only once for each function it appears in
in expansion of macro 'QSPI_PIN_SCK'
in expansion of macro 'NRFX_QSPI_PIN_SCK'
in expansion of macro 'NRFX_QSPI_DEFAULT_CONFIG'
in expansion of macro 'NRF_DRV_QSPI_DEFAULT_CONFIG'
'BSP_QSPI_CSN_PIN' undeclared (first use in this function); did you mean 'QSPI_PIN_CSN'?
in expansion of macro 'QSPI_PIN_CSN'
in expansion of macro 'NRFX_QSPI_PIN_CSN'
in expansion of macro 'NRFX_QSPI_DEFAULT_CONFIG'
in expansion of macro 'NRF_DRV_QSPI_DEFAULT_CONFIG'
'BSP_QSPI_IO0_PIN' undeclared (first use in this function)
in expansion of macro 'QSPI_PIN_IO0'
in expansion of macro 'NRFX_QSPI_PIN_IO0'
in expansion of macro 'NRFX_QSPI_DEFAULT_CONFIG'
in expansion of macro 'NRF_DRV_QSPI_DEFAULT_CONFIG'
'BSP_QSPI_IO1_PIN' undeclared (first use in this function)
in expansion of macro 'QSPI_PIN_IO1'
in expansion of macro 'NRFX_QSPI_PIN_IO1'
in expansion of macro 'NRFX_QSPI_DEFAULT_CONFIG'
in expansion of macro 'NRF_DRV_QSPI_DEFAULT_CONFIG'
'BSP_QSPI_IO2_PIN' undeclared (first use in this function)
in expansion of macro 'QSPI_PIN_IO2'
in expansion of macro 'NRFX_QSPI_PIN_IO2'
in expansion of macro 'NRFX_QSPI_DEFAULT_CONFIG'
in expansion of macro 'NRF_DRV_QSPI_DEFAULT_CONFIG'
'BSP_QSPI_IO3_PIN' undeclared (first use in this function)
in expansion of macro 'QSPI_PIN_IO3'
in expansion of macro 'NRFX_QSPI_PIN_IO3'
in expansion of macro 'NRFX_QSPI_DEFAULT_CONFIG'
in expansion of macro 'NRF_DRV_QSPI_DEFAULT_CONFIG'
Compiling ‘SEGGER_RTT.c’
Build failed

ble_connectivity\pca10056\ser_s140_usb_hci\ses builds fine.

Have not tried using other compilers.

RE: pc-ble-driver connectivity increase MTU size

Sigurd — Mon, 21 Oct 2019 11:39:13 GMT

Hi,

[quote user=""]What is the simplest way to recompile the connectivity with the increased MTU? [/quote]

Download SDK 15.3, apply the patch found here (nRF5_SDK_15.3.0_connectivity.patch). Then find the project in SDK_folder\examples\connectivity\ble_connectivity, change the value of NRF_SDH_BLE_GATT_MAX_MTU_SIZE in sdk_config.h, and compile the project.