CCS/CC3220SF-LAUNCHXL: Error connecting to the target: (Error -1170 @ 0x0) Unable to access the DAP?

Hi Markel,

Good to hear you are testing the next generation.

I think your CC3220 device is in production mode and in this mode are JTAG pins not muxed to JTAG (icepick). Please use Uniflash software and switch device to development mode. I had same issue when I start developement with CC3220SF-LAUNCHXL few months ago. Also I had manufacturing issue at my preproduction CC3220SF-LAUNCHXL board. There was short at J4 connector between pins (TDO and TDI). Maybe you should also check your hardware, just to be sure.

Answer which I received from Shlomi:

Regarding your issue, there are two kinds of images you can put on the secured device, development and production.

As it sounds, development is used during development where you want to connect via JTAG and debug. Development image is also tightly coupled to the device specific MAC address so if you try to program the *.sli image to another device, it would not work.

Production is the final image on production line that is agnostic to the device MAC address. One of the features for production image is that all debugging interfaces are not muxed to the external interface, including JTAG.

So my educated guess is that the default mode you used is production. Click on the General option on the top left tree and see.

Jan