Thingy91: USB-UART bridge AND BLE gateway in nRF52840 ?

[Bjorn191023]

Hi,

The following article describes how to perform serial programming of nRF9160 on Thingy91: https://devzone.nordicsemi.com/nordic/cellular-iot-guides/b/getting-started-cellular/posts/thingy91_2d00_fw_2d00_update_2d00_mcuboot

It requires a special USB-UART bridge firmware in the nRF52840: https://github.com/NordicPlayground/fw-nrfconnect-nrf/tree/master/samples/usb/usb_uart_bridge

Now let's say we want to implement a BLE gateway in the nRF52840 but still want to keep the serial programming capability of nRF9160.

Do you see any problem with that? We can simply merge the USB-UART bridge and BLE gateway sources?

Please advice!

BR / Bjorn

[Håkon Alseth]

Hi,

 

Now let's say we want to implement a BLE gateway in the nRF52840 but still want to keep the serial programming capability of nRF9160.

Do you see any problem with that? We can simply merge the USB-UART bridge and BLE gateway sources?

 As long as you take the UARTE1 for BLE-HCI (remove the CDC1 references, enable H4 on both ends), that should be do-able. However; we have not tried this, so there might be bumps in the road when implementing this. Be sure to have this fix when compiling the gateway:

https://github.com/NordicPlayground/fw-nrfconnect-zephyr/pull/228

More info in this thread wrt. running lte_ble_gateway on thingy:91: https://devzone.nordicsemi.com/f/nordic-q-a/52689/nrf9160-lte-sensor-gateway-on-thingy-91

Kind regards,

Håkon