MCU not entering VLPS mode with Segger RTT Viewer (J-Link Probe) connected.

キャンセル
次の結果を表示 
表示  限定  | 次の代わりに検索 
もしかして: 

MCU not entering VLPS mode with Segger RTT Viewer (J-Link Probe) connected.

199件の閲覧回数
Sami2098
Contributor I

We added the RTT Viewer logging functionality to our MCU project (NXP S32k146). With the normal project with out RTT support the MCU can enter the VLPS correctly and we can verify this by checking the current consumption which gets very low in VLPS mode around 0.5 mA. However, when we enable RTT in the Project the MCU is not able to eneter the VLPS mode and stays in VLPR. THe current consumption at this point is ten times higher as compared to the previous scenario with a value around 5 mA.
We would like to know how we can make the MCU enter VLPS mode with RTT support enabled (so that we start getting the RTT prints as soon as we exit VLPS mode and also before entering VLPS mode).

0 件の賞賛
返信
1 返信

156件の閲覧回数
danielmartynek
NXP TechSupport
NXP TechSupport

Hi @Sami2098,

With any debugger, the MCU cannot get to VLPS.

The debugger must be disconnected if you want the MCU in VLPS.

danielmartynek_0-1757061711327.png

 

Regards,

Daniel

 

0 件の賞賛
返信