TMS320F28032: failed to connect with XDS110

Aki Li

Customer used XDS510LC with CCS3.3 for debug on their F28032 board before, now they wanted to update to XDS110 emulator with CCS11, using JTAG interface also. However, they failed at "Test connection" step, and /TRST pin voltage kept low. Could you please help share any guidance to check the root cause? Thank you.

over 4 years ago

0 Marlyn Rosales Castaneda20 over 4 years ago

TI__Mastermind 27020 points

Hi Aki,

What is the value of the pull down resistor for the TRST pin? Our datasheet recommends 2.2k ohms but recently customers have been needing to use something like 4.7k or even 10k ohms.

What error message is being presented?

Here is a guide that provides more details about common errors/troubleshooting with XDS110: http://software-dl.ti.com/ccs/esd/documents/ccs_debugging_jtag_connectivity_issues.html#host-connection-error

Best Regards,

Marlyn