Thread Tools
This thread is privately moderated by Jack Crossfire, who may elect to delete unwanted replies.
Jan 22, 2007, 05:27 AM
Registered User
Jack Crossfire's Avatar
Thread OP

Turkey terrorism

So removed the pullup from the JTAG data output and it started making proper signals all the way through. Unfortunately, with all the signals propogating and looking good at 1khz it still reported "cable power off" when trying any operation.

The STR9 advertizes support for a pace clock to limit the rate of JTAG communication. Tried implementing a pace clock in software at 1khz but the CAPS debugger just said "timeout" when trying to get IDCodes and "cable power off" for all other operations.

It appears there's either a minimum clock speed or the pace clock is ignored for most operations, causing the debugger to use way too high clockspeeds for a software JTAG circuit. The next step is to move closer to what ST recommends and use discrete components instead of software for the JTAG circuit, but still not a full implementation of their reference circuit.

Today's sunset shoot was less flatttering than others, mainly because it was underexposed. You need to overexpose 2 stops exactly on the predicted sunset time. Then you get a nice lead-in with reasonably good exposure when it finally turns red.

Wunderground is required because you can't see the sun cross below the horizon from this dumpy apartment complex.

Today's shooting began 20 minutes before the predicted sunset at +2 stops because we didn't trust wunderground. Once you begin shooting, you can't change exposure without putting a glitch in the movie. That's still something software can't correct.
Sign up now
to remove ads between posts

Quick Reply
Thread Tools