Permalink
Browse files

Add K66 (Teensy 3.6)

  • Loading branch information...
kcouck committed Nov 29, 2016
1 parent 94e46e3 commit cf5bae12293c482a98ba8f0cd7002816693dae16
View
@@ -10,6 +10,9 @@
#elif defined(__MK20DX128__) || defined(__MK20DX256__)
// Include k20/T3 headers
#include "platforms/arm/k20/led_sysdefs_arm_k20.h"
+#elif defined(__MK66FX1M0__)
+// Include k66/T3.6 headers
+#include "platforms/arm/k66/led_sysdefs_arm_k66.h"
#elif defined(__MKL26Z64__)
// Include kl26/T-LC headers
#include "platforms/arm/kl26/led_sysdefs_arm_kl26.h"
View
@@ -10,6 +10,9 @@
#elif defined(__MK20DX128__) || defined(__MK20DX256__)
// Include k20/T3 headers
#include "platforms/arm/k20/fastled_arm_k20.h"
+#elif defined(__MK66FX1M0__)
+// Include k66/T3.6 headers
+#include "platforms/arm/k66/fastled_arm_k66.h"
#elif defined(__MKL26Z64__)
// Include kl26/T-LC headers
#include "platforms/arm/kl26/fastled_arm_kl26.h"
@@ -0,0 +1,124 @@
+#ifndef __INC_CLOCKLESS_ARM_K20_H
+#define __INC_CLOCKLESS_ARM_K20_H
+
+FASTLED_NAMESPACE_BEGIN
+
+// Definition for a single channel clockless controller for the k20 family of chips, like that used in the teensy 3.0/3.1
+// See clockless.h for detailed info on how the template parameters are used.
+#if defined(FASTLED_TEENSY3)
+
+#define FASTLED_HAS_CLOCKLESS 1
+
+template <int DATA_PIN, int T1, int T2, int T3, EOrder RGB_ORDER = RGB, int XTRA0 = 0, bool FLIP = false, int WAIT_TIME = 50>
+class ClocklessController : public CPixelLEDController<RGB_ORDER> {
+ typedef typename FastPin<DATA_PIN>::port_ptr_t data_ptr_t;
+ typedef typename FastPin<DATA_PIN>::port_t data_t;
+
+ data_t mPinMask;
+ data_ptr_t mPort;
+ CMinWait<WAIT_TIME> mWait;
+public:
+ virtual void init() {
+ FastPin<DATA_PIN>::setOutput();
+ mPinMask = FastPin<DATA_PIN>::mask();
+ mPort = FastPin<DATA_PIN>::port();
+ }
+
+ virtual uint16_t getMaxRefreshRate() const { return 400; }
+
+protected:
+
+ virtual void showPixels(PixelController<RGB_ORDER> & pixels) {
+ mWait.wait();
+ if(!showRGBInternal(pixels)) {
+ sei(); delayMicroseconds(WAIT_TIME); cli();
+ showRGBInternal(pixels);
+ }
+ mWait.mark();
+ }
+
+ template<int BITS> __attribute__ ((always_inline)) inline static void writeBits(register uint32_t & next_mark, register data_ptr_t port, register data_t hi, register data_t lo, register uint8_t & b) {
+ for(register uint32_t i = BITS-1; i > 0; i--) {
+ while(ARM_DWT_CYCCNT < next_mark);
+ next_mark = ARM_DWT_CYCCNT + (T1+T2+T3);
+ FastPin<DATA_PIN>::fastset(port, hi);
+ if(b&0x80) {
+ while((next_mark - ARM_DWT_CYCCNT) > (T3+(2*(F_CPU/24000000))));
+ FastPin<DATA_PIN>::fastset(port, lo);
+ } else {
+ while((next_mark - ARM_DWT_CYCCNT) > (T2+T3+(2*(F_CPU/24000000))));
+ FastPin<DATA_PIN>::fastset(port, lo);
+ }
+ b <<= 1;
+ }
+
+ while(ARM_DWT_CYCCNT < next_mark);
+ next_mark = ARM_DWT_CYCCNT + (T1+T2+T3);
+ FastPin<DATA_PIN>::fastset(port, hi);
+
+ if(b&0x80) {
+ while((next_mark - ARM_DWT_CYCCNT) > (T3+(2*(F_CPU/24000000))));
+ FastPin<DATA_PIN>::fastset(port, lo);
+ } else {
+ while((next_mark - ARM_DWT_CYCCNT) > (T2+T3+(2*(F_CPU/24000000))));
+ FastPin<DATA_PIN>::fastset(port, lo);
+ }
+ }
+
+ // This method is made static to force making register Y available to use for data on AVR - if the method is non-static, then
+ // gcc will use register Y for the this pointer.
+ static uint32_t showRGBInternal(PixelController<RGB_ORDER> pixels) {
+ // Get access to the clock
+ ARM_DEMCR |= ARM_DEMCR_TRCENA;
+ ARM_DWT_CTRL |= ARM_DWT_CTRL_CYCCNTENA;
+ ARM_DWT_CYCCNT = 0;
+
+ register data_ptr_t port = FastPin<DATA_PIN>::port();
+ register data_t hi = *port | FastPin<DATA_PIN>::mask();;
+ register data_t lo = *port & ~FastPin<DATA_PIN>::mask();;
+ *port = lo;
+
+ // Setup the pixel controller and load/scale the first byte
+ pixels.preStepFirstByteDithering();
+ register uint8_t b = pixels.loadAndScale0();
+
+ cli();
+ uint32_t next_mark = ARM_DWT_CYCCNT + (T1+T2+T3);
+
+ while(pixels.has(1)) {
+ pixels.stepDithering();
+ #if (FASTLED_ALLOW_INTERRUPTS == 1)
+ cli();
+ // if interrupts took longer than 45µs, punt on the current frame
+ if(ARM_DWT_CYCCNT > next_mark) {
+ if((ARM_DWT_CYCCNT-next_mark) > ((WAIT_TIME-INTERRUPT_THRESHOLD)*CLKS_PER_US)) { sei(); return 0; }
+ }
+
+ hi = *port | FastPin<DATA_PIN>::mask();
+ lo = *port & ~FastPin<DATA_PIN>::mask();
+ #endif
+ // Write first byte, read next byte
+ writeBits<8+XTRA0>(next_mark, port, hi, lo, b);
+ b = pixels.loadAndScale1();
+
+ // Write second byte, read 3rd byte
+ writeBits<8+XTRA0>(next_mark, port, hi, lo, b);
+ b = pixels.loadAndScale2();
+
+ // Write third byte, read 1st byte of next pixel
+ writeBits<8+XTRA0>(next_mark, port, hi, lo, b);
+ b = pixels.advanceAndLoadAndScale0();
+ #if (FASTLED_ALLOW_INTERRUPTS == 1)
+ sei();
+ #endif
+ };
+
+ sei();
+ return ARM_DWT_CYCCNT;
+ }
+};
+#endif
+
+FASTLED_NAMESPACE_END
+
+#endif
Oops, something went wrong.

0 comments on commit cf5bae1

Please sign in to comment.