Hello
I'm having some difficulties getting an XDS100v3 debugger and a custom board with a CC1310 to talk to each other. Currently I'm stuck at a point, where CCS will, upon trying "Test Connection" give me this error:
The value is '-233' (0xffffff17).
The title is 'SC_ERR_PATH_BROKEN'.
The explanation is:
The JTAG IR and DR scan-paths cannot circulate bits, they may be broken.
An attempt to scan the JTAG scan-path has failed.
The target's JTAG scan-path appears to be broken
with a stuck-at-ones or stuck-at-zero fault.
So far I have done these things:
- Board is a custom one, with a CC1310F32 on it, using its DC-DC converter.
- Debugger is an XDS100v3 from Embest
- Voltages are correct -> 1.27V on DCOUPL and 1.68V on VDDR
- Circuit is powered by 2xAA batteries (3V in total)
- Bootloader mode works, I can read and program the chip with a simple FT230XS breakout board
- Tried 2-wire cJTAG and 4-wire JTAG modes
- Checked with an oscilloscope, that the TMS and TCK lines have activity and are not stuck
My connections between the debugger and board are GND, 3v3/VTref, TMS, TCK (+ connected RTCK to TCK), I have connected TDIS to ground, and I have connected RESET_N on the chip to nTRST of the debugger. I have tried using nRESET on the debugger, but it does not toggle, it just stays high all the time.
I know the chip works (bootloader), I know the connections between the debugger and chip are solid, I am sure all the pins are soldered well, but it will just not work. Any ideas on what else to try? Unfortunately, I do not have another debugger or an official dev board to test with.
Kind regards,
Wilin