Failed to start PPK

[HuNa]

hello,  this is my first time to start the PPK, I have a 52840 DK (BMD-340-EVAL) and PPK, when I use nRF connect to connect the PPK(PPK is over the 52840 DK) , it shows Failed to read PPK metadata, Failed to start the PPK, the LED1 light is on.

the log shows as follow:

2018-11-25T14:33:41.479Z INFO Application data folder: C:\Users\pc\AppData\Roaming\nrfconnect\pc-nrfconnect-ppk
2018-11-25T14:33:41.581Z INFO App initialized
2018-11-25T14:33:41.639Z DEBUG App pc-nrfconnect-ppk v2.0.0 official
2018-11-25T14:33:41.639Z DEBUG App path: C:\Users\pc\.nrfconnect-apps\node_modules\pc-nrfconnect-ppk
2018-11-25T14:33:41.639Z DEBUG nRFConnect 2.6.0 is supported by the app (^2.3.0)
2018-11-25T14:33:41.639Z DEBUG nRFConnect path: C:\Users\pc\AppData\Local\Programs\nrfconnect\resources\app.asar
2018-11-25T14:33:41.639Z DEBUG HomeDir: C:\Users\pc
2018-11-25T14:33:41.639Z DEBUG TmpDir: C:\Users\pc\AppData\Local\Temp
2018-11-25T14:33:45.994Z INFO PPK opened
2018-11-25T14:33:45.995Z INFO Initializing the PPK
2018-11-25T14:33:47.654Z INFO Segger serial: 682788145
2018-11-25T14:33:47.654Z INFO Segger speed: 2000 kHz
2018-11-25T14:33:47.654Z INFO Segger version: J-Link OB-SAM3U128-V2-NordicSemi compiled Jul 12 2018 11:44:41
2018-11-25T14:33:50.549Z ERROR Failed to read PPK metadata
2018-11-25T14:33:50.549Z ERROR Failed to start the PPK.
2018-11-25T14:33:50.550Z DEBUG

[AndreasF]

Hi.

Could you please clarify the following, as it is a bit unclear?

Do you have:

1) The PPK, a nRF52840 DK, and a BMD-340-EVAL kit?

2) The PPK and a BMD-340-EVAL kit?

If you have (1), have you followed the Measuring current on custom hardware with nRF5 DK Guide on the infocenter?

If you have (2), have you followed the Measuring current on custom hardware without nRF5 DK Guide on the infocenter?

Best regards..

Andreas

[HuNa]

• I have a BMD-340-EVAL and PPK, I can't buy a NRF52840 DK due to air transportation limitations of American, but I don't really get what the Segger J_Link debuuger is ? I found a product :
• https://www.digikey.com.cn/product-detail/zh/segger-microcontroller-systems/8-08-00-J-LINK-BASE/899-1004-ND/2175882
• Can this be used as a J_Link debugger? Can you give me some recomendation? Many thanks!

[AndreasF]

Hi.

HuNa said:

I can't buy a NRF52840 DK due to air transportation limitations of American

 Based on the digikey.com.cn link you have added I guess you are from China? We have distributors in China, here is a list.

I recommend that you contact one of our distributors in China and buy the nRF52840 DK, this will give you more options than the J-Link Base debugger and be more reasonable.

Best regards.

Andreas