Loopback "Yes", Echo "NO" on my BoE USB.. tried everything! GRR!
Hello, I've been working with my BoE Rev. C. board with my BS2 Rev J Stamp for quite some time now.· I've had servo's and GPS modules connected in the past with great success.. I put my stamp away for about 4 months and recently brought it back out to work on it again.· For whatever reason, my stamp won't connect.· I've checked the Latency Timing in the troubleshooting document and made the adjustment to 0 from 16, I've installed the USB driver from the downloads section, then the·latest FTDI driver from FTDI, I've tried 3 different USB cables and three different computers with all the same messages.· I've got the latest Stamp program as well.· I tried a different power supply, and battery (i see the light come on with both types of power), but still nothing.· I've got the USB FTDI connector on my BoE board.· I know the Echo has something to do with the PC talking to the Stamp, but I don't know how else to get this to work!?· I ran a volt meter across the VSS to VDD and was getting 4.94V, so I don't believe the stamp is an issue.. Any thoughts!.. very frustrating!
Comments
thanks
nuby
The only thing that has really changed since I put it away till now is the USB cable.· while the stamp was in storage i used the USB cable for something and lost it.. I have tried three different ones, but as far as i know the USB cable for the·BoE boards are not keyed, so any USB cable SHOULD work?
Does anyone know if the ECHO is related to the connection between the computer and the BoE board?? I gotta call tech support Monday, but i'm itchin to get this thing working!!!
Mike
If you then get an echo, the fault is with the Stamp chip; if not, it's with the BOE.
-Phil
Is there anyway I can convert this to a DB9 setup?· I tried soldering a jumper from the 3rd pin to the resistor, but my hands aren't what they used to be and I ended up soldering a couple of pins together on the FTDI chip.. sooo.. i'd like to bypass the FTDI all together and solder some leads onto the bottom of the stamp's socket (with the stamp removed of course) and plug it into a com port using a DB9 cable.
I need to know which pins on a DB9 goto which pins on the stamp.· It looks as though i only need·Sout, Sin, ATN, but I don't have a pinout translation to the DB9 port..
I have zero budget, so help me obi wan kenobi, you're my only hope.. lol
It looks pretty simple, I need a couple of cap's, and that's about it..
Looking at Phil's post, I see the two caps beside the connector, so i'm pretty sure this is all i have to do.. (Thanks Phil!)
Can someone confirm that this is all I need to do to convert it over to a DB9?
Mike
you don't need all of that.
If you are confortable, take an exacto knife, and scrape the green layer off that trace, and drop a small amount of solder to bridge the trace break. Then you won't need any other parts.
James L
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James L
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