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Mcp2200 — Parallax Forums

Mcp2200

lfw94lfw94 Posts: 5
edited 2011-08-29 00:33 in BASIC Stamp
Hey guys

I have a little problem.
I use the mcp2200 Uart to USB converter.
I don’t now how I make a loopback.
Can someone say me how I must connect the pins?
Where must the RTS and CTS at the Basic Stamp Chip be?
Sorry for me English I’m from Switzerland.

Datasheet:
http://ww1.microchip.com/downloads/en/DeviceDoc/22228A.pdf

Comments

  • stamptrolstamptrol Posts: 1,731
    edited 2011-08-24 05:15
    Welcome to the Forums.

    Typically, loopback refers to connecting Rx and Tx together to check the functioning of the communication link.

    There may be a problem with the mcp2200 and programming the Stamp as the Stamp needs the DTR signal to operate at the end of a program download to tell the Stamp to reset. In your datasheet, I don't see the DTR or DTS signal.

    The FTDI chips are known to work with the Stamps and are discussed on the Parallax Store website.

    Cheers,
  • lfw94lfw94 Posts: 5
    edited 2011-08-28 23:09
    thank you
    but I want to use the mcp2200
  • ercoerco Posts: 20,257
    edited 2011-08-29 00:33
    Not sure about the mcp2200, but some USB adapters give inverted signals and can work once an inverter is added. See http://forums.parallax.com/showthread.php?133195-USB-Adapter-Fix
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