• State Verified Answer
  • Replies 6 replies
  • Subscribers 73 subscribers
  • Views 3285 views
  • Users 0 members are here
Attachments (0)
Nordic Case Info
  • Case ID: 109091
Options
This post is older than 2 years and might not be relevant anymore
More Info: Consider searching for newer posts

where is com port on nrf51DK

Sr Huang

temp.jpgimage description

Original nrf51DK board have default com port. But after I use MCP windows,

it'll need flashing a image and short P0.30 GND, com port disappear.

Even after reflashing Jlink if bin file.

How to let it back?

image description image description

Parents
  • 0

    Segger firmware has CDC functionality that exports itself as an emulated COM port. Something on the segger chip on your DK went wrong. I recommend you to upgrade segger software. After that when you try to flash to the device, Segger will find that you chip has outdated firmware and will try to upgrage it. Most of the time this works and if this did not work, i recommend you to contact segger.

Reply
  • 0

    Segger firmware has CDC functionality that exports itself as an emulated COM port. Something on the segger chip on your DK went wrong. I recommend you to upgrade segger software. After that when you try to flash to the device, Segger will find that you chip has outdated firmware and will try to upgrage it. Most of the time this works and if this did not work, i recommend you to contact segger.

Children
No Data
Related
Terms of service