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NRF52840 boot/flash strategy

Mickael

Hi there,

I am considering the NRF52840 to build our new platform but I am struggling to find information about how the device Firmware is programmed.

Apart from SWD, can it be flashed over BLE, UART, USB?

I havent been able to find anything regarding this in the OPS...

thanks for you help, Mickael

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    If the nrf52 bootloader gets corrupted, you can reprogram the nrf52 bootloader on the nrf52840 PDK via the built in Segger J-Link programmer using just a usb cable. If the bootloader on an external nrf52840 gets corrupt, you can then only program the external chip using a Segger J-Link programmer either on the nrf52dk and debug out (see link), or with another segger j-link programmer. You will have to use a 10 pin SWD cable for this.

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    If the nrf52 bootloader gets corrupted, you can reprogram the nrf52 bootloader on the nrf52840 PDK via the built in Segger J-Link programmer using just a usb cable. If the bootloader on an external nrf52840 gets corrupt, you can then only program the external chip using a Segger J-Link programmer either on the nrf52dk and debug out (see link), or with another segger j-link programmer. You will have to use a 10 pin SWD cable for this.

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