Prop Comms Prob

John Board

Hi All,

I have been having a small comms problem while programming my props, I am using a demo board and the gadget gangster board. It is fine while loading small programs, but it says "Port # has lost contact" or something like that, it gets up to verfiying ram.

Thanks in advance

MagIO2

I also had a problem loading full length programs to the prop. I did not investigate further because my own programs always fit so far. (The one which failed was a demo)
But currently I am writing a terminal program and found out that it did not receive the text send from the propeller in a continuous stream. Propably it's the same thing in the other direction! As far as I remember timing is very important for the boot-loader.

Assuming that we talk about a windows box and a USB to Serial interface, you can go to the Device Manager -> your virtual COM-Port. Somewhere you will find a button which opens a window that allows to change some buffer settings. I decreased the buffer values and now the stream looks like being continuous. Maybe now I should also try this demo again ;o)

Sorry for being so vague, but I don't have my Netbook here to check in detail.

Duane Degn

John,

Are you using one of the retractable USB cables? If so, switch it for a better cable.

Even if your cable isn't retractable, you might try switching it.

Rayman

Make sure you have the latest version of Prop tool too (V.1.3) Older versions would sometimes have that issue...

John Board

Thanks for all your responses, I will try all.

Ohh, I am running Prop tool v1.2.5, so I am upgrading now

Thanks again,

John

John Board

I've upgraded to 1.3 and all seems to be going fine! Thanks!