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fogl's avatar
fogl
Icon for Occasional Contributor rankOccasional Contributor
6 years ago

Connection Setup for JTAG - simplification

Hello everybody, To use the JTAG on a MAX10 devices i should (according to UG-M10CONFIG) tie the JTAGEN and JTAG pins to either weak pull-up or pull-down. Is this actually really necessary. Can i c...
JohnT_Altera's avatar
JohnT_Altera
Icon for Regular Contributor rankRegular Contributor
6 years ago

Hi,

I would still recommend you to put TCK to weak pull-down so that we can avoid unwanted noise during power up as during power up, the JTAG pin will be set as dedicated pin. This will avoid any unwanted configuration issue through internal flash.

The JTAG pin will only be set to normal IO pin when it enter usermode and JTAG pin sharing is enabled.