TM4C1294NCPDT: Error -2062 @ 0x0

prabha 1

Part Number: TM4C1294NCPDT

Tool/software:

Hi,

I recently having problem regarding debugging the Tiva-TM4C1294NCPDT controller, I have used uni-flash software for flashing the program(.outfile) to the controller using TI's XDS110 Debug probe but it showing the mentioned error randomly

("Error connecting to the target:(Error -2062 @ 0x0) Unable to halt device. Reset the device, and retry the operation. If error persists, confirm configuration, power-cycle the board, and/or try more reliable JTAG settings (e.g. lower TCLK).

what went wrong with this?

6 months ago

0 Charles Tsai 6 months ago

TI__Guru**** 183736 points

Hi,

Can you provide more information?

prabha 1 said:
TI's XDS110 Debug probe but it showing the mentioned error randomly

Is it true that the XDS110 can sometimes successfully connect to the target device but randomly fail at other times?

Do you have the RBIAS pin properly connected to ground through either a 4.7kohm resistor (if you do not use Ethernet) or a 4.87kohm resistor (if you use Ethernet)? Without the resistor, there is an known errata which can impact JTAG connection.

Can you repeat the same issue on another of your board? This is to understand if the problem is related to only one board only.

Can you repeat the same issue on a LaunchPad or any known good board? This is to make sure the XDS110 debug probe is functional.

Please also refer to this app note Using TM4C12x Devices Over JTAG Interface on best practice on JTAG connection. Although I don't see a major issue with your JTAG interface, the best practice would be to have pullup resistors on the JTAG signals.