I am trying to download blinky program in a EFM32(G880f128) microcontroller on a EFM32G880F128-H development board by using a U-Link me debugger and the uVision-4 environment. But It comes up with an error message "No JLink device found".
Any suggestions?
Open your project options (Project -> Options for Target) Then open the Utilities tab, choose ULINK ARM Debugger, click on Settings button and add programming algorithm for your uC. (mine looks like this http://yfrog.com/jddebughj) If you want to debug, you must select your ULINK debugger in the Debug tab of Project options window.
Thanks for the reply. I made the necessary changes as you recommended, but now it comes up with the message "No ULink Device found" followed by "Error:Flash Download failed - Target DLL has been cancelled".
Do I have to buy a J-Link adapter by Segger or some other brand for this purpose?
Note: The program I have been trying to download in the EFM32G880F128 chip is blinkG890.uvproj. After making the cahnges the error message changed from "No J-Link Device found" to "No U-Link Device found".
Hi,
you do not need any Adapter. Go to the Segger Homepage segger.com and download the JLink driver (this includes the Windows driver).
Then start UV, go to debug settings, select 'Cortex-M3 JLink', then 'Settings'. Set the Port to 'SW' (the EFM does not run in JTAG Mode?).
Then the EFM32 should be found in the List (Coresight .....).
--- Why dows this work? Because the EFM Boards have an embedded JLink (JLINK OB).
. BR, /th.
please do not forget to set the Flash driver to 'Cortex-M3 JLink', too. Set it in the 'Utilities' Tab in Debug Options. Probably you must select the correct programming algorithm.