MBED driver is connected & disconnected continuously

Question

MBED driver is connected & disconnected continuously

Closed this issue 8 years ago · 9 comments

When RBL nRF51822 board connect with PC, MBED driver (E:) is connected and disconnected continuously.
Power isn't off but BLE signal is off.

I tested it another PC but same problem occured.
Is it driver problem??

Answer 1 · 2016-11-16T03:30:46.000Z

Try to update the interface firmware to DAPLink.
https://github.com/RedBearLab/nRF51822-Arduino/tree/S130/interface/mk20/board_v1.0/daplink

Answer 2 · 2016-11-16T03:43:30.000Z

How to update interface firmware??

Answer 3 · 2016-11-16T03:54:51.000Z

Press button, then connect board to PC, you will see a driver "Bootloader".
Drag the bin file into the driver.
By the way, what is your PC system?

Answer 4 · 2016-11-16T04:39:34.000Z

Windows 10.

After update the interface firmware, my pc doesn't detect the driver(MBED).
Bootloader is detected when I plug board and then push the reset button.

Answer 5 · 2016-11-16T05:45:48.000Z

what is your board version? 1.0?

Answer 6 · 2016-11-16T06:40:35.000Z

nRF51822 V1.5 (32KB)

Answer 7 · 2016-11-16T08:42:46.000Z

Sorry, nRF51822 V1.5 can't use the new interface firmware, just use old https://github.com/RedBearLab/nRF51822-Arduino/tree/S130/interface/mk20/board_v1.5/cmsis-dap

Do you have other PC with window7 or linux? We meet this problem on window10, but it should work on other system.

Answer 8 · 2016-11-18T02:43:33.000Z

On Ubuntu system, It works. Thanks.

Answer 9 · 2018-01-13T15:08:50.000Z

using MK20 V1.0 but its not detecting in W10, ubuntu 16.04 after I upgrade the fw bootloader..I followed steps
The MK20 is going into bootloader mode by pressing reset but it is not detecting as MBED or DAPLINK and led is off.
Need help.