RS232 tu USB problem NO BASICS STAMPS FOUND

Pixelman

Hi,
Im trying to write on my BS Homework Board but I cannot acces to it.
When I go to RUN/Identify I get Yes in both Loopback and Echo.
When I go to RUN/RUN I get the error message "NO BASICS STAMPS FOUND."

Im using a RS232 to USB cable on Windows Vista. I already turn of the FIFO BUffer in my computer. (control panel/system/device manager/ports(COM & LTP)/prolific USB-to-Serial Bridge properties)

PLEASE HELP ME!

allanlane5

If both Loopback and Echo are working, then the port is probably working right.

Typically this is a power problem on the homework board -- is your battery new?

Bill Chennault

Pixelman--

What allanlane5 said. My BOE and eb500 (or eb501) will drain a brand new 9 volt battery very quickly. Additionally, XP SP2 and the Stamp IDE seem to become cross with one another after a time and the only thing that will make them friends again is a reboot. Typical Windows procedure, in other words.

Gee. Vista? I have no clue, but I would certainly make sure the power supply is good and reboot the box whenever the IDE begins acting the least bit weird.

Good luck!

--Bill

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You are what you write.

Pixelman

Bill Chennault said...
Pixelman--

What allanlane5 said. My BOE and eb500 (or eb501) will drain a brand new 9 volt battery very quickly. Additionally, XP SP2 and the Stamp IDE seem to become cross with one another after a time and the only thing that will make them friends again is a reboot. Typical Windows procedure, in other words.

Gee. Vista? I have no clue, but I would certainly make sure the power supply is good and reboot the box whenever the IDE begins acting the least bit weird.

Good luck!

--Bill

I replace the battery for a new one (you are right, the battery I was using drained out very quickly), however I still have the same problem with a brand new battery.

Thank you for your reply!

allanlane5

What have you added to your "homework" board? If you've connected Vdd to Vss (or Vin to Vss) accidentally, that would do this also.

Pixelman

allanlane5 said...
What have you added to your "homework" board? If you've connected Vdd to Vss (or Vin to Vss) accidentally, that would do this also.

I haven't add anything yet. Im using this code to test connectivity

' {$STAMP BS2}
' {$PBASIC 2.5}
DEBUG "Test A BS MICROCONTROLLER"
END

Chris Savage

Prolific Adapter or it's drivers may be the issue. This is not a model we have tested to work with our products. Do you have access to a PC with a Serial Port on-board?

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Chris Savage
Parallax Tech Support

Pixelman

Chris Savage (Parallax) said...
Prolific Adapter or it's drivers may be the issue. This is not a model we have tested to work with our products. Do you have access to a PC with a Serial Port on-board?

Unfortunately I don't have access to a computer with Serial port on board.

allanlane5

Not all USB to Serial adapters work to program a BS2. The problem is, the USB to Serial vendors don't properly implement the 'hand-shake' signals. The BS2 IDE uses "DTR" to 'reset' the BS2 for programming, and the timing there is pretty tight. A poor (or no) implementation of the DTR line (like on "PDA adapters") means the adapter can't be used to program the BS2.

Parallax does sell a very reasonable USB to serial adapter guaranteed to work.