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Full Duplex Serial w/ Hardware flow control (rts/cts) — Parallax Forums

Full Duplex Serial w/ Hardware flow control (rts/cts)

SpinHeadSpinHead Posts: 28
edited 2010-07-09 22:45 in Propeller 1
Has anyone modified the current fullduplex serial to allow for hardware handshaking before I hack it up? I know I am going to butcher it because I am not all that good (read horrible) at Pasm.


Thanks!

Comments

  • Duane DegnDuane Degn Posts: 10,588
    edited 2008-06-16 18:22
    SpinHead,

    Good luck. I'm anxious to see you succeed. I'm trying to get the prop to communicate with the Memory Stick Datalogger (#27937). So far with no luck. Please post your results.

    Duane Degn
  • TimmooreTimmoore Posts: 1,031
    edited 2008-06-16 18:35
    I have modifed the fullduplex driver for rts/cts. See http://forums.parallax.com/forums/default.aspx?f=25&m=273291
    CTS is tested and working. I havn't tested RTS yet
  • Duane DegnDuane Degn Posts: 10,588
    edited 2008-06-16 21:34
    Timmoore,

    Thanks for link. I looked at the older version of this program yesterday. I'll try the new program "pcFullDuplexSerial4FC" today. I hope the untested RTS works.

    Duane Degn

    Post Edited (Duane Degn) : 6/16/2008 9:39:16 PM GMT
  • DaveJensonDaveJenson Posts: 375
    edited 2010-07-09 21:18
    Is there any reason I couldn't use multiple instances of pcFullDuplexSerial4FC to run 8, 12 or even 16 serial ports? Will this object only work for 4 ports? What gotcha's do you imagine that I should be careful of?

    Thanks
  • Bill HenningBill Henning Posts: 6,445
    edited 2010-07-09 22:45
    16 ports with hand shaking would need 64 I/O's

    16 ports without hand shaking would need 32 I/O's

    assuming only an EEPROM, and a serial programming port, 15 non-handshaked serial ports are possible, with four instances of the quad driver.
    DaveJenson said...
    Is there any reason I couldn't use multiple instances of pcFullDuplexSerial4FC to run 8, 12 or even 16 serial ports? Will this object only work for 4 ports? What gotcha's do you imagine that I should be careful of?

    Thanks
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