SK-AM64B: REGARDING XDS110 DEBUGGER

Hello, 

If you look at the board schematics here: https://www.ti.com/lit/ug/spruiy9b/spruiy9b.pdf?ts=1758094333649&ref_url=https%253A%252F%252Fwww.ti.com%252Ftool%252FSK-AM64B 

(section 4.4.5 JTAG) you will see that the board has the JTAG_TRST signal connected, so yes, the XDS can issue a signal toggled system reset to the SoC. I believe the TMS are just resetting the JTAG TAP interface. Hope it helps,

thanks,

Alex

Hi Balagopalan,

TRST is a TAP reset instruction to internal test and debug logic. TRST is not used to reset the entire SoC. I can't find a pin coming out from the on board XDS that causes SoC reset. An entire SoC reset through the MCU_PORz pin is possible through an external debugger probe (pin 15):

Regards,

Stan