I have a Webpal that works okay in "normal" mode (boots to startup screen, etc), and an RS-232 converter that's worked before, and appears to be working now.
If I power up/reset the Webpal without S2 pressed, it eventually spits out an X-ON (0x11) on the serial port (which minicom, curiously, displays as a ".").
If I reset with S2 pressed, the video comes up blank, the yellow LED stays off, and I get nothing out the serial port.
The CTS input to the Webpal is at a nominal 5V with the RS-232 cable disconnected, and a nominal 0V when connected to the PC.
I cut JP1, after reading a note about that here, but that had no effect.
I put a scope on the TxD output from the Webpal, and did a few reset cycles, but didn't see any wiggling that suggested the prompt was being sent.
Is there some other action that's needed to persuade the debugger to talk that I overlooked?