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Fork of PololuLedStripx by
PololuLedStrip.cpp
- Committer:
- DavidEGrayson
- Date:
- 2013-02-28
- Revision:
- 4:d3b60bd43811
- Parent:
- 1:102307d9b701
- Child:
- 6:9d0530b7dae2
File content as of revision 4:d3b60bd43811:
#include "PololuLedStrip.h" bool PololuLedStrip::interruptFriendly = false; // TODO: read clock frequency from SystemCoreClock and use that to make this work on different boards. // calculate the three delays needed and pass them to the assembly. The assembly can implement them with computed jumps. 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. }