Interrupt and Serial Timing

system · March 8, 2014, 5:32am

I'm having an issue with the string processing in this system. I'm reading a quote from an array, then sending it letter by letter to an interrupt routine. THe interrupt routine is responsible for sending the letters to the printer itself.

Trouble is, a lot of the time when I run the program, it stops in the middle of the string, at seemingly random places. Other times it goes all the way through. I think I've got it checking for serial outside of the interrupts, but I'm at a loss as to what causes the skipping. Help would be awesome!(Arduino Uno)

Arduino File

gist.github.com

https://gist.github.com/anonymous/9425825

Wordpad Test

#include "quotefile.h"
//3 is interrupt for Timing
//4 through 11 are Time dependent receivers
//3-11 Pins 12-19

//Curent Serial Byte(Letter or Number)
char incomingByte = 0;
//Previous Byte in the Serial Chain
char previousByte = 0;
int m=0;

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Quotes Header File

gist.github.com

https://gist.github.com/anonymous/9425864

Quotefile header


const char *quotes[34]={
    "Help me, I'm stuck in a typewriter#",
    "Take the blue pill#",
    "You should have taken the red pill.#",
    "Help me obi wan kenobi, you're my only hope#",
    "from my point of view the jedi are evil#",
    "bite my shiny metal ass#",
    "i suffer from a very sexy learning disorder, sexlexia#",
    //"if we can hit that bullseye, the rest of the dominoes will fall like a house of cards. checkmate.",

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Anyone know the answer? I'm really out of ideas.

system · March 10, 2014, 2:58am

Anyone? I'm flummoxed.

system · March 10, 2014, 6:49am

benl11235:
Anyone? I'm flummoxed.

Then don't post your code on shithub. Attach it to your post.

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Interrupt and Serial Timing

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