Method writeBits

src/platforms/esp/8266/clockless_esp8266.h:75–105

#define _ESP_ADJ2 (0)

	template<int BITS> __attribute__ ((always_inline)) inline static bool writeBits(FASTLED_REGISTER u32 & last_mark, FASTLED_REGISTER u32 b) FL_NOEXCEPT {
    b <<= 24; b = ~b;
    for(FASTLED_REGISTER u32 i = BITS; i > 0; --i) {
      while((__clock_cycles() - last_mark) < (T1+T2+T3)) {
            ;
      }
      last_mark = __clock_cycles();
      FastPin<DATA_PIN>::hi();

      while((__clock_cycles() - last_mark) < T1) {
            ;
      }
      if(b & 0x80000000L) { FastPin<DATA_PIN>::lo(); }
      b <<= 1;

      while((__clock_cycles() - last_mark) < (T1+T2)) {
            ;
      }
      FastPin<DATA_PIN>::lo();

			// even with interrupts disabled, the NMI interupt seems to cause
			// timing issues here. abort the frame if one bit took to long. if the
			// last of the 24 bits has been sent already, it is too late
			// this fixes the flickering first pixel that started to occur with
			// framework version 3.0.0
			if ((__clock_cycles() - last_mark) >= (T1 + T2 + T3 - 5)) {
				return true;
			}
		}
		return false;
	}


	static u32 FL_IRAM showRGBInternal(PixelController<RGB_ORDER> pixels) FL_NOEXCEPT {