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Baudrate for the BS2PE — Parallax Forums

Baudrate for the BS2PE

TumblerTumbler Posts: 323
edited 2009-07-16 05:15 in BASIC Stamp
Hello,

I bought a 160x128 px glcd from sparkfun and want connect it to a BS2PE.
Datasheet here
When i take a look at this page, i can't find values for 115200 baud rate.

Is it possible to work with a 2PE?

It's possible to change the baud rates for the lcd, but i don't know how.

Can somebody help me to set it to 19200?

regards

Comments

  • LeonLeon Posts: 7,620
    edited 2009-07-15 10:59
    Have you tried the SFE forum?

    Leon

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  • TumblerTumbler Posts: 323
    edited 2009-07-15 11:08
    No i didn't
    Cause i can't find something about it there
  • UnsoundcodeUnsoundcode Posts: 1,532
    edited 2009-07-15 15:04
    Hi Tumbler, the data sheet explains how to configure the baudrate , once set the display will retain the setting.

    You can set the baud to 19200 from a PC terminal by sending the sequence $7C $07 $33 at a baud of 115200.

    The serial connection on the display is 5v TTL so you will need a RS232 to TTL converter between the PC and your display to prevent damage to the display. You can use something like a MAX232 or the Parallax USB2SER http://www.parallax.com/StoreSearchResults/tabid/768/txtSearch/usb2ser/List/0/SortField/4/ProductID/32/Default.aspx

    The data sheet tells you that to set the baud back to 115200 all you need do is send a character to the display within the first second of power up which also means you must give the display time to power up or you will lose your 19200 baud setting.

    Jeff T.
  • dev/nulldev/null Posts: 381
    edited 2009-07-15 15:11
    FYI: The BS2pe doesn't support 115200 baud. Max baud rate for BS2pe is 50k. If you use flow control the max rate is 19200.
    The baudrate value for BS2pe at 19200 is 32.

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  • TumblerTumbler Posts: 323
    edited 2009-07-15 18:21
    Dev/null said...
    FYI: The BS2pe doesn't support 115200 baud. Max baud rate for BS2pe is 50k. If you use flow control the max rate is 19200.
    The baudrate value for BS2pe at 19200 is 32.

    Thats why i have to change it to 19200 burger.gif

    Does anybody a free RS232 software so i can change the baudrate?
    I found this one ($40)
  • UnsoundcodeUnsoundcode Posts: 1,532
    edited 2009-07-15 19:04
    Tumbler , you don't need to buy any software to do this , what you do need is an RS232 to TTL converter of some kind.

    Jeff T.
  • TumblerTumbler Posts: 323
    edited 2009-07-15 19:18
    Allready have one Jeff.

    The Lcd baud rate is programmed at 115200, i have to change it to 19200 to work with basic stamps.
    I downloaded the demo version and it works great.
    Now have to test it with some bs2 or javelin.
  • UnsoundcodeUnsoundcode Posts: 1,532
    edited 2009-07-15 20:15
    Tumbler thats good , what do you require the software to do precisely.

    There's software readily available for free that will change the baud rate , depending on your needs there is free software that can be used for evaluating the display·.

    Just need to know what you want·from the software.

    Jeff T.
  • TumblerTumbler Posts: 323
    edited 2009-07-16 04:21
    Unsoundcode said...
    what do you require the software to do precisely.

    Well, just set the baudrate to another value [noparse]:)[/noparse]
    The demo did the job, now i can connect it to a bs2 or javelin.
  • UnsoundcodeUnsoundcode Posts: 1,532
    edited 2009-07-16 05:15
    Ok , it was unclear to me that you had the problem resolved .

    Good deal and good luck with the display.

    Jeff T.
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