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SX28 - not running without programming — Parallax Forums

SX28 - not running without programming

JavalinJavalin Posts: 892
edited 2009-08-01 19:48 in General Discussion
Hello all,

A quick one this - i've forgotton how it works...!

My SX28 doesn't "boot" and start the code that i've programmed (ctrl-P) via the editor IDE.· It just sits there.· Currently its running on a SX tech board.· If I run it (ctrl-R) then it starts and the code runs OK.· No crystal is plugged in, just the sxkey.

The device settings are:
··· DEVICE ··SX28, OSC4MHZ, TURBO, STACKX, OPTIONX
··· FREQ ··4_000_000
I want to run it a 4mhz using the internal osc.· I don't need a crystal in it for this I assume?

Cheers,

james

Comments

  • PJMontyPJMonty Posts: 983
    edited 2009-08-01 19:38
    James,

    I just re-edited this post because I didn't read James post more carefully.

    Yes, the 4MHz clock is internal and should just run. Have you tried doing a program (ctrl-p) followed by a power off and power on of the board with the SX?

    Thanks,
    PeterM

    Post Edited (PJMonty) : 8/1/2009 7:43:15 PM GMT
  • JavalinJavalin Posts: 892
    edited 2009-08-01 19:42
    Hi Peter,

    Yup tried that - no joy.

    I'll try a new SX28 just in case

    James
  • JavalinJavalin Posts: 892
    edited 2009-08-01 19:48
    ah. Tried with OSCHS2 and a 20MHZ crystal.

    Works now. i guess the 4mhz osc wasn't fast enough.

    Sorry about that - a bit of a dumb question after all!

    James
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