DFU Serial,nrfutil note: No ping response after opening the com port

[zcmm]

SDK:15.3.0

CHIP:52832

nrfutil:5.1.0

Python:2.7

 I am using this bootloader code  install folder\nRF5_SDK_15.3.0_59ac345\examples\dfu\secure_bootloader\pca10040_uart_debug, and uart setting changes.

    #define HWFC           false

baud: 9600

The dfu zip use install folder\nRF5_SDK_15.3.0_59ac345\examples\dfu\secure_bootloader\dfu\secure_dfu_test_images\uart\nrf52832\hrs_application_s132.zip.

It note: "No ping respoinse after opening the com port"

The RTT debug:

[Edvin]

Can you try to use baud 115200? I believe that this is the default baudrate for the bootloader projects from our SDK. So unless you changed this in the bootloader, this is what you'll have to use.

If you have changed the baudrate, did you do any other changes to the bootloader project?

Best regards,

Edvin

Best regards,

Edvin

[zcmm]

hi Edvin,now it can work.

NRFX_UARTE_DEFAULT_CONFIG_HWFC/NRFX_UART_DEFAULT_CONFIG_HWFC/UART_DEFAULT_CONFIG_HWFC settings are wrong.

Thanks

[Edvin]

Are the pins 19 and 17 connected to your computer? On the DK, the pins 6 and 8 are hard wired to the on board debugger's UART pins. You can't use this debugger with any other pins. Try to change them back to 6 and 8 and see if that works.