David Knight / PololuLedStrip

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Fork of PololuLedStrip by David Grayson

PololuLedStrip.cpp

Committer:
DavidEGrayson
Date:
2013-02-27
Revision:
1:102307d9b701
Child:
4:d3b60bd43811

File content as of revision 1:102307d9b701:

#include "PololuLedStrip.h"

bool PololuLedStrip::interruptFriendly = false;

PololuLedStrip::PololuLedStrip(PinName pinName)
{
    gpio_init(&gpio, pinName, PIN_OUTPUT);
}

void PololuLedStrip::write(rgb_color * colors, unsigned int count)
{
    __disable_irq();   // Disable interrupts temporarily because we don't want our pulse timing to be messed up.
    
    while(count--)
    {
        led_strip_write_color(colors++, gpio.reg_set, gpio.reg_clr, gpio.mask);
     
        if (interruptFriendly)
        {
            __enable_irq();
            __nop();
            __nop();
            __nop();
            __disable_irq();
        }
    }
        
    __enable_irq();   // Re-enable interrupts now that we are done.
    wait_us(24);      // Hold the line low for 24 microseconds to send the reset signal.
}