4 ms·
Can second this. Having JTAG/SWD access is so much better than any of these ad-hoc stuff combined. When even SWD doesn't work, you know with certainty that your
by smilekzs 6y ago
Can second this. Having JTAG/SWD access is so much better than any of these ad-hoc stuff combined. When even SWD doesn't work, you know with certainty that your board/chip is in deep trouble anyway. Also for most of Cortex-M you buy the dongle only once.
- neltnerb 6y agoGet one of these and you don't even need to populate a connector on the PCB, just buy the programmer once. https://www.tag-connect.com/ https://www.tag-connect.com/ I prefer the style with the little hook legs.
- jrockway 6y agoThat is really nifty!
- mmoskal 6y agoIf you don't feel like spending a lot you can use this https://arcade.makecode.com/hardware/dbg https://arcade.makecode.com/hardware/dbg For the small connector you may need to buy something for a few dollars, and for the big one you almost certainly already have everything on your desk. The small one is smaller, and despite the picture you can also put it in the middle of your board - just make sure to keep taller components our of the yellow area.
- monocasa 6y agoThere's also the poor man's version of this where you pull your debugging symbols out to a card edge. Have done that on several design and it worked well. You get to play with what you want on the connector for the design typically, so have thrown ethernet MII on there in addition JTAG and UART.