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  1. Replies
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    Re: DMX512 Reception + 3 * 8-Bit PWM Outputs

    Wow, it's been a long time since I wrote this. Sorry for the dead link. You might be interested in www.response-box.com/rgb these days.

    This code was written to compile under MPLAB 8.6 (?) or...
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    FOR x = 0 to 5 HIGH PORTB.0[x] Pause 100 Next x

    FOR x = 0 to 5
    HIGH PORTB.0[x]
    Pause 100
    Next x
  3. Thread: DMX receive issue

    by JEC
    Replies
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    Agreed on all counts. HSERIN won't work very...

    Agreed on all counts. HSERIN won't work very well for what you're trying to do.

    Many ways to skin this particular cat, and PBP's access to the processor's registers makes this easy.
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    Need Contract Work?

    We've been a PIC (and by extension, PBP) shop since about 2003.

    In spite of the current economy, we're totally swamped. Our back burners are loaded with more new designs and product requests than...
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    ....... BAM was published by AL *specifically* to...

    ....... BAM was published by AL *specifically* to place the idea & implementation in the public domain and keep companies from patenting it.

    Partly because there's been some ugliness in the...
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    16F877-DIP 40 package

    11 available, new in tube, never been used.

    Digikey wants $9.80 for 1 and $5.61 for 25.

    http://search.digikey.com/scripts/DkSearch/dksus.dll?Detail&name=PIC16F877-20/P-ND

    $7 each or 11 for...
  7. Thread: help PicBASIC PRO

    by JEC
    Replies
    6
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    3,852

    I don't expect that anyone on this forum will...

    I don't expect that anyone on this forum will help you find a pirated version of PBP.
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    How flickery is 80 Hz x 4 @ 4 MHz?

    How flickery is 80 Hz x 4 @ 4 MHz?
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    Would love a copy. Just emailed you. What's the...

    Would love a copy. Just emailed you. What's the processor utilization per MHz per LED?
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    Pity the 10F doesn't have a TMR1... :)

    Pity the 10F doesn't have a TMR1... :)
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    I'd run in to the exact same issues between 127...

    I'd run in to the exact same issues between 127 and 128. Never had time to investigate it further.

    My implementation just used a state machine in the interrupt routine - 1 state for each bit.
    ...
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    Hey Folks... It's been a couple years. I've...

    Hey Folks...

    It's been a couple years. I've updated my lights with a new design and a much bigger quantity. Currently using ~ 663 channels of DMX to drive them.

    Pictures here, video to be...
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    Thanks, DT, for the suggestions. Update: I...

    Thanks, DT, for the suggestions.

    Update: I re-spun the code entirely. Got rid of the interrupts altogether and set up everything to poll the needed register flags.

    UART2 works perfectly to...
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    Wahoo! My TDS210 is so black and white. Those...

    Wahoo! My TDS210 is so black and white. Those new colour plasma scopes look fun...

    You're right about the byte time. Somehow I messed up that calculation.

    Receiving data through a 220W...
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    10X that, actually. It's MIDI. I saw that...

    10X that, actually. It's MIDI.

    I saw that errata & tried bumping the register values (from 39 to 38 and 41, also from 9 to 10 and 8) but without much joy.

    The other wrinkle is that even if...
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    USART Bit Time Error

    I've searched through a stack of datasheets, errata and app notes without any success.

    Short version: When using a hardware serial port, is a 2.3% difference between actual and expected baud rates...
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    Actually, that's the part I didn't mention. I'm...

    Actually, that's the part I didn't mention. I'm looking at the 18F6310, which appears to be only a couple dollars. Unless I've missed something, that's the smallest of the 18Fs with two ports, and...
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    Don't know how I missed that in my searching. ...

    Don't know how I missed that in my searching.

    Many thanks, Bruce. That looks perfect.
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    Access array in PBP and .asm

    Hi Folks,

    I'm working on a project where I'm simultaneously receiving, manipulating, and transmitting serial data. This data comes and goes in 64-byte chunks.

    I'd like to set up an interrupt...
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    Just noticed the post linking to my site. The...

    Just noticed the post linking to my site. The project is alive and well, with many improvements for the coming year.

    By the way, the version of the Triklits which I purchased a few years ago is...
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    The '2550 is definitely only a 'slave' chip and...

    The '2550 is definitely only a 'slave' chip and I'd suspect that your phone is as well.

    Thus, there's no chance that they'll be able to communicate over USB with each other.
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    EDIT: Pixels are for sale now. ...

    EDIT: Pixels are for sale now.

    www.response-box.com/rgblights
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    Hi Ray, We're working on a group buy for the...

    Hi Ray,

    We're working on a group buy for the pixels through an overseas fabricator.

    I've ordered samples and they should be here shortly.

    Pricing isn't final yet but there's a very good...
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    DMX512 Reception + 3 * 8-Bit PWM Outputs

    Code is written for a 14-pin 16F688 using the internal 8 MHz oscillator.

    It receives DMX-512 and outputs 3 channels of PWM at a nearly 100 Hz refresh rate. Resolution is 8 bits minus 1, or 255...
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    Yet Another (Sigh!) DMX-512 Post...

    ...but this time I'm sharing.

    Code is written for a 16F688 using the internal 8 MHz oscillator.

    It receives DMX-512 and outputs 3 channels of PWM at nearly 100 Hz refresh rate. Resolution is...
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