No Propeller chip found on any serial port

Hugh

I was wondering wether the Moderators might consider a sticky with a list of possible causes of the "No Propeller found on any serial port"?

Another one to add being "don't put anything on pins 30 or 31 that might affect the flow of information"

(Obvious it may be, but discovered the hard way this week when attaching to pin 30 a sensor that had a voltage divider on its output)

LoopyByteloose

My own feelings are that the new user should just use pins 0 through 27 and avoid adding hardware that might share pins 28 through 31.

Use pins 30 and 31 for a Debugging Port to your computer via normal means.

Pins 28, 29, 30, and 31 are the core of your Propeller's system and conflicts are likely to happen if you are new to microcontrollers.

Hugh

I'd used almost all of the other pins (and made others too difficult to get at) and used pin 30 without thinking, hence the thought about a sticky:

"You can encounter this warning if:

The Prop isn't supplied with power.
The Prop isn't connected to the computer
...
Something is connected to pins 28 to 31 that might affect their use for loading the Prop
etc., etc.,"

A definite "D'Oh!" moment when I realised what I'd done.