Use external JLINK to download the program to the 52840DK board

[ArchieL]

Hi 

When using external JLINK to download programs to 52840DK board, how should power supply, or how should configuration;
What problems should you pay attention to when using JLINK download program on your own designed board?
thank you

[Amanda Hsieh]

Hi, 

Please see the Debug input and trace documentation. 

-Amanda H.

[ArchieL]

Hi Amanda,There is another problem. My board SWDIO and SWDCLK output 1.8V, which seems to cause my board and JLINK to fail to match.
1. I designed according to the reference design. What could cause my board SWDIO and SWDCLK to output 1.8V,
2. JLINK voltage does not match, how to solve it

[Amanda Hsieh]

Hi Archie, 

Is it possible to share the schematic of your board?

-Amanda H.