BS2 to SLED-C4 clock dispay: connections?

ColoredNoise

I know this is gonna seem a· really trivial question for most of y'all; but, IC circuits baffle me tho I'm trying to learn.· I have the Professional Development·Board and the BS2; I'm trying to get the SLED-C4 clock display to work.· I·pulled the code from the rentron site and was planning to use that as the baseline to start playing. I got nothing.· The display won't even light up randomly.··Obviously, I've gotten the connections all messed up.· Can someone tell me what goes where.· I know my board and ic are good - i can use the on-board LEDs just fine.

thanks

Franklin

www.melabs.com/downloads/SLED-C4.pdf here is how it is supposed to hook up. How do you have it hooked up and what program are you running? attach your code and a schematic of what you have for connections.

▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔▔
- Stephen

ColoredNoise

Yup, that's the same Sled-C4 pdf I have; I·pulled Stamp code from the Rentron site).·

Orignally I had made some guesses and had the following BS2 to SLED connections:

···· P0·<-> S1

···· P1 <-> S2

··· ·P5 <-> S3

····VSS <-> S4

····VDD <-> S5



I tried with and without P15 <-> on board pulse generator



As of this AM, I have stripped the board blank and am planning to start

over with a clean layout and newly optimistic heart. I am certain the BS2 can speak to

this display directly (i saw hints of using an additional ic between them; but would rather work

thru thu this).·I just need figure out how! [noparse]:)[/noparse]

Bruce Bates

ColoredNoise -

I'm not sure from your posting·whether you missed the sample programs on the Rentron web site, but in case you did, please find attached a copy of the· PBASIC demo program for use on a BS-2.

In the sample program you will see that P0 is the serial Tx line, and P1 is the Busy line used only for animations. The only other lines on the display are P3, P4 and P5. P4 goes to ground, and P5 goes to +5 VDC.

That leaves only P3, and how P3 is connected·determines the baud rate. If you attach P3 to ground you are indicating a baud rate of 19200. If you attach P3 to +5 VDC you are indicating a baud rate of 9600. Personally, I would recommend 9600 baud.

Make sure the baud rate indicated in the SEROUT of your program matches how you have P3 connected, otherwise you'll see nothing but garbage on the display.

That should get you going.

Regards,

Bruce Bates

ColoredNoise

BINGO! Typical newbie error, I'm sure.
up coding now!
thanks, y'all