867 lines
27 KiB
C++
867 lines
27 KiB
C++
/*-------------------------------------------------------------------------
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NeoPixel library helper functions for ARM MCUs.
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Teensy 3.0, 3.1, LC, Arduino Due
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Written by Michael C. Miller.
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Some work taken from the Adafruit NeoPixel library.
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I invest time and resources providing this open source code,
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please support me by dontating (see https://github.com/Makuna/NeoPixelBus)
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-------------------------------------------------------------------------
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This file is part of the Makuna/NeoPixelBus library.
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The contents of this file were taken from the Adafruit NeoPixel library
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and modified only to fit within individual calling functions.
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NeoPixelBus is free software: you can redistribute it and/or modify
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it under the terms of the GNU Lesser General Public License as
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published by the Free Software Foundation, either version 3 of
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the License, or (at your option) any later version.
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NeoPixelBus is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with NeoPixel. If not, see
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<http://www.gnu.org/licenses/>.
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-------------------------------------------------------------------------*/
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#pragma once
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#if defined(__arm__) && !defined(ARDUINO_ARCH_NRF52840)
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template<typename T_SPEED> class NeoArmMethodBase
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{
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public:
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typedef NeoNoSettings SettingsObject;
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NeoArmMethodBase(uint8_t pin, uint16_t pixelCount, size_t elementSize, size_t settingsSize) :
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_sizeData(pixelCount * elementSize + settingsSize),
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_pin(pin)
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{
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pinMode(pin, OUTPUT);
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_data = static_cast<uint8_t*>(malloc(_sizeData));
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// data cleared later in Begin()
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}
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~NeoArmMethodBase()
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{
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pinMode(_pin, INPUT);
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free(_data);
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}
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bool IsReadyToUpdate() const
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{
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uint32_t delta = micros() - _endTime;
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return (delta >= T_SPEED::ResetTimeUs);
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}
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void Initialize()
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{
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digitalWrite(_pin, LOW);
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_endTime = micros();
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}
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void Update(bool)
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{
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// Data latch = 50+ microsecond pause in the output stream. Rather than
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// put a delay at the end of the function, the ending time is noted and
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// the function will simply hold off (if needed) on issuing the
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// subsequent round of data until the latch time has elapsed. This
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// allows the mainline code to start generating the next frame of data
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// rather than stalling for the latch.
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while (!IsReadyToUpdate())
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{
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yield(); // allows for system yield if needed
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}
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noInterrupts(); // Need 100% focus on instruction timing
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T_SPEED::send_pixels(_data, _sizeData, _pin);
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interrupts();
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// save EOD time for latch on next call
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_endTime = micros();
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}
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uint8_t* getData() const
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{
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return _data;
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};
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size_t getDataSize() const
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{
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return _sizeData;
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};
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void applySettings(const SettingsObject& settings)
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{
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}
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private:
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const size_t _sizeData; // Size of '_data' buffer below
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uint32_t _endTime; // Latch timing reference
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uint8_t* _data; // Holds LED color values
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uint8_t _pin; // output pin number
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};
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// Teensy 3.0 or 3.1 (3.2) or 3.5 or 3.6
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#if defined(__MK20DX128__) || defined(__MK20DX256__) || defined(__MK64FX512__) || defined(__MK66FX1M0__)
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class NeoArmMk20dxSpeedProps800KbpsBase
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{
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public:
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static const uint32_t CyclesT0h = (F_CPU / 4000000);
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static const uint32_t CyclesT1h = (F_CPU / 1250000);
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static const uint32_t Cycles = (F_CPU / 800000);
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};
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class NeoArmMk20dxSpeedPropsWs2812x : public NeoArmMk20dxSpeedProps800KbpsBase
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{
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public:
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static const uint32_t ResetTimeUs = 300;
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};
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class NeoArmMk20dxSpeedPropsSk6812 : public NeoArmMk20dxSpeedProps800KbpsBase
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{
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public:
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static const uint32_t ResetTimeUs = 80;
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};
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class NeoArmMk20dxSpeedPropsTm1814 : public NeoArmMk20dxSpeedProps800KbpsBase
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{
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public:
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static const uint32_t ResetTimeUs = 200;
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};
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class NeoArmMk20dxSpeedPropsTm1829 : public NeoArmMk20dxSpeedProps800KbpsBase
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{
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public:
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static const uint32_t ResetTimeUs = 200;
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};
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class NeoArmMk20dxSpeedProps800Kbps : public NeoArmMk20dxSpeedProps800KbpsBase
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{
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public:
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static const uint32_t ResetTimeUs = 50;
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};
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class NeoArmMk20dxSpeedProps400Kbps
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{
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public:
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static const uint32_t CyclesT0h = (F_CPU / 2000000);
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static const uint32_t CyclesT1h = (F_CPU / 833333);
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static const uint32_t Cycles = (F_CPU / 400000);
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static const uint32_t ResetTimeUs = 50;
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};
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class NeoArmMk20dxSpeedPropsApa106
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{
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public:
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static const uint32_t CyclesT0h = (F_CPU / 4000000);
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static const uint32_t CyclesT1h = (F_CPU / 913750);
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static const uint32_t Cycles = (F_CPU / 584800);
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static const uint32_t ResetTimeUs = 50;
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};
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template<typename T_SPEEDPROPS> class NeoArmMk20dxSpeedBase
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{
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public:
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static const uint32_t ResetTimeUs = T_SPEEDPROPS::ResetTimeUs;
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static void send_pixels(uint8_t* pixels, size_t sizePixels, uint8_t pin)
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{
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uint8_t* p = pixels;
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uint8_t* end = p + sizePixels;
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uint8_t pix;
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uint8_t mask;
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volatile uint8_t* set = portSetRegister(pin);
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volatile uint8_t* clr = portClearRegister(pin);
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uint32_t cyc;
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ARM_DEMCR |= ARM_DEMCR_TRCENA;
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ARM_DWT_CTRL |= ARM_DWT_CTRL_CYCCNTENA;
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cyc = ARM_DWT_CYCCNT + T_SPEEDPROPS::Cycles;
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while (p < end)
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{
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pix = *p++;
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for (mask = 0x80; mask; mask >>= 1)
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{
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while (ARM_DWT_CYCCNT - cyc < T_SPEEDPROPS::Cycles);
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cyc = ARM_DWT_CYCCNT;
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*set = 1;
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if (pix & mask)
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{
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while (ARM_DWT_CYCCNT - cyc < T_SPEEDPROPS::CyclesT1h);
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}
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else
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{
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while (ARM_DWT_CYCCNT - cyc < T_SPEEDPROPS::CyclesT0h);
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}
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*clr = 1;
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}
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}
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}
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};
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typedef NeoArmMethodBase<NeoArmMk20dxSpeedBase<NeoArmMk20dxSpeedPropsWs2812x>> NeoArmWs2812xMethod;
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typedef NeoArmMethodBase<NeoArmMk20dxSpeedBase<NeoArmMk20dxSpeedPropsSk6812>> NeoArmSk6812Method;
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typedef NeoArmMethodBase<NeoArmMk20dxSpeedBase<NeoArmMk20dxSpeedPropsTm1814>> NeoArmTm1814InvertedMethod;
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typedef NeoArmMethodBase<NeoArmMk20dxSpeedBase<NeoArmMk20dxSpeedPropsTm1829>> NeoArmTm1829InvertedMethod;
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typedef NeoArmMethodBase<NeoArmMk20dxSpeedBase<NeoArmMk20dxSpeedPropsApa106>> NeoArmApa106Method;
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typedef NeoArmMethodBase<NeoArmMk20dxSpeedBase<NeoArmMk20dxSpeedProps800Kbps>> NeoArm800KbpsMethod;
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typedef NeoArmMethodBase<NeoArmMk20dxSpeedBase<NeoArmMk20dxSpeedProps400Kbps>> NeoArm400KbpsMethod;
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typedef NeoArmTm1814InvertedMethod NeoArmTm1914InvertedMethod;
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#elif defined(__MKL26Z64__) // Teensy-LC
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#if F_CPU == 48000000
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class NeoArmMk26z64Speed800KbpsBase
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{
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public:
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static void send_pixels(uint8_t* pixels, size_t sizePixels, uint8_t pin)
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{
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uint8_t* p = pixels;
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uint8_t pix;
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uint8_t count;
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uint8_t dly;
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uint8_t bitmask = digitalPinToBitMask(pin);
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volatile uint8_t* reg = portSetRegister(pin);
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uint32_t num = sizePixels;
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asm volatile(
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"L%=_begin:" "\n\t"
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"ldrb %[pix], [%[p], #0]" "\n\t"
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"lsl %[pix], #24" "\n\t"
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"movs %[count], #7" "\n\t"
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"L%=_loop:" "\n\t"
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"lsl %[pix], #1" "\n\t"
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"bcs L%=_loop_one" "\n\t"
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"L%=_loop_zero:"
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"strb %[bitmask], [%[reg], #0]" "\n\t"
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"movs %[dly], #4" "\n\t"
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"L%=_loop_delay_T0H:" "\n\t"
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"sub %[dly], #1" "\n\t"
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"bne L%=_loop_delay_T0H" "\n\t"
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"strb %[bitmask], [%[reg], #4]" "\n\t"
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"movs %[dly], #13" "\n\t"
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"L%=_loop_delay_T0L:" "\n\t"
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"sub %[dly], #1" "\n\t"
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"bne L%=_loop_delay_T0L" "\n\t"
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"b L%=_next" "\n\t"
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"L%=_loop_one:"
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"strb %[bitmask], [%[reg], #0]" "\n\t"
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"movs %[dly], #13" "\n\t"
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"L%=_loop_delay_T1H:" "\n\t"
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"sub %[dly], #1" "\n\t"
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"bne L%=_loop_delay_T1H" "\n\t"
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"strb %[bitmask], [%[reg], #4]" "\n\t"
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"movs %[dly], #4" "\n\t"
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"L%=_loop_delay_T1L:" "\n\t"
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"sub %[dly], #1" "\n\t"
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"bne L%=_loop_delay_T1L" "\n\t"
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"nop" "\n\t"
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"L%=_next:" "\n\t"
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"sub %[count], #1" "\n\t"
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"bne L%=_loop" "\n\t"
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"lsl %[pix], #1" "\n\t"
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"bcs L%=_last_one" "\n\t"
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"L%=_last_zero:"
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"strb %[bitmask], [%[reg], #0]" "\n\t"
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"movs %[dly], #4" "\n\t"
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"L%=_last_delay_T0H:" "\n\t"
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"sub %[dly], #1" "\n\t"
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"bne L%=_last_delay_T0H" "\n\t"
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"strb %[bitmask], [%[reg], #4]" "\n\t"
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"movs %[dly], #10" "\n\t"
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"L%=_last_delay_T0L:" "\n\t"
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"sub %[dly], #1" "\n\t"
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"bne L%=_last_delay_T0L" "\n\t"
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"b L%=_repeat" "\n\t"
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"L%=_last_one:"
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"strb %[bitmask], [%[reg], #0]" "\n\t"
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"movs %[dly], #13" "\n\t"
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"L%=_last_delay_T1H:" "\n\t"
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"sub %[dly], #1" "\n\t"
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"bne L%=_last_delay_T1H" "\n\t"
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"strb %[bitmask], [%[reg], #4]" "\n\t"
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"movs %[dly], #1" "\n\t"
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"L%=_last_delay_T1L:" "\n\t"
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"sub %[dly], #1" "\n\t"
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"bne L%=_last_delay_T1L" "\n\t"
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"nop" "\n\t"
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"L%=_repeat:" "\n\t"
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"add %[p], #1" "\n\t"
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"sub %[num], #1" "\n\t"
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"bne L%=_begin" "\n\t"
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"L%=_done:" "\n\t"
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: [p] "+r" (p),
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[pix] "=&r" (pix),
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[count] "=&r" (count),
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[dly] "=&r" (dly),
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[num] "+r" (num)
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: [bitmask] "r" (bitmask),
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[reg] "r" (reg)
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);
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}
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};
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class NeoArmMk26z64SpeedWs2812x : public NeoArmMk26z64Speed800KbpsBase
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{
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public:
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const static uint32_t ResetTimeUs = 300;
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};
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class NeoArmMk26z64SpeedSk6812 : public NeoArmMk26z64Speed800KbpsBase
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{
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public:
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const static uint32_t ResetTimeUs = 80;
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};
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class NeoArmMk26z64SpeedTm1814 : public NeoArmMk26z64Speed800KbpsBase
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{
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public:
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const static uint32_t ResetTimeUs = 200;
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};
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class NeoArmMk26z64SpeedTm1829 : public NeoArmMk26z64Speed800KbpsBase
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{
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public:
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const static uint32_t ResetTimeUs = 200;
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};
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class NeoArmMk26z64Speed800Kbps : public NeoArmMk26z64Speed800KbpsBase
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{
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public:
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const static uint32_t ResetTimeUs = 50;
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};
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typedef NeoArmMethodBase<NeoArmMk26z64SpeedWs2812x> NeoArmWs2812xMethod;
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typedef NeoArmMethodBase<NeoArmMk26z64SpeedSk6812> NeoArmSk6812Method;
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typedef NeoArmMethodBase<NeoArmMk26z64SpeedTm1814> NeoArmTm1814InvertedMethod;
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typedef NeoArmMethodBase<NeoArmMk26z64SpeedTm1829> NeoArmTm1829InvertedMethod;
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typedef NeoArmMethodBase<NeoArmMk26z64Speed800Kbps> NeoArm800KbpsMethod;
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typedef NeoArm800KbpsMethod NeoArmApa106Method;
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typedef NeoArmTm1814InvertedMethod NeoArmTm1914InvertedMethod;
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#else
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#error "Teensy-LC: Sorry, only 48 MHz is supported, please set Tools > CPU Speed to 48 MHz"
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#endif // F_CPU == 48000000
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#elif defined(__SAMD21G18A__) // Arduino Zero
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class NeoArmSamd21g18aSpeedProps800KbpsBase
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{
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public:
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static void BitPreWait()
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{
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asm("nop; nop; nop; nop; nop; nop; nop; nop;");
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}
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static void BitT1hWait()
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{
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asm("nop; nop; nop; nop; nop; nop; nop; nop;"
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"nop; nop; nop; nop; nop; nop; nop; nop;"
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"nop; nop; nop; nop;");
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}
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static void BitT0lWait()
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{
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asm("nop; nop; nop; nop; nop; nop; nop; nop;"
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"nop; nop; nop; nop; nop; nop; nop; nop;"
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"nop; nop; nop; nop;");
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}
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static void BitPostWait()
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{
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asm("nop; nop; nop; nop; nop; nop; nop; nop; nop;");
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}
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};
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class NeoArmSamd21g18aSpeedPropsWs2812x : public NeoArmSamd21g18aSpeedProps800KbpsBase
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{
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public:
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static const uint32_t ResetTimeUs = 300;
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};
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class NeoArmSamd21g18aSpeedPropsSk6812 : public NeoArmSamd21g18aSpeedProps800KbpsBase
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{
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public:
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static const uint32_t ResetTimeUs = 80;
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};
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class NeoArmSamd21g18aSpeedPropsTm1814 : public NeoArmSamd21g18aSpeedProps800KbpsBase
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{
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public:
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static const uint32_t ResetTimeUs = 200;
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};
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class NeoArmSamd21g18aSpeedPropsTm1829 : public NeoArmSamd21g18aSpeedProps800KbpsBase
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{
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public:
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static const uint32_t ResetTimeUs = 200;
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};
|
|
|
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class NeoArmSamd21g18aSpeedProps800Kbps : public NeoArmSamd21g18aSpeedProps800KbpsBase
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{
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public:
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static const uint32_t ResetTimeUs = 50;
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};
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|
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class NeoArmSamd21g18aSpeedProps400Kbps
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{
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public:
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static void BitPreWait()
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{
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asm("nop; nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;");
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}
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static void BitT1hWait()
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{
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asm("nop; nop; nop; nop; nop; nop; nop; nop;"
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"nop; nop; nop; nop; nop; nop; nop; nop;"
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"nop; nop; nop; nop; nop; nop; nop; nop;"
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"nop; nop; nop;");
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}
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static void BitT0lWait()
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{
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asm("nop; nop; nop; nop; nop; nop; nop; nop;"
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"nop; nop; nop; nop; nop; nop; nop; nop;"
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"nop; nop; nop; nop; nop; nop; nop; nop;"
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"nop; nop; nop;");
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}
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static void BitPostWait()
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{
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asm("nop; nop; nop; nop; nop; nop; nop;");
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}
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static const uint32_t ResetTimeUs = 50;
|
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};
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|
|
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template<typename T_SPEEDPROPS> class NeoArmSamd21g18aSpeedBase
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|
{
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public:
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|
static const uint32_t ResetTimeUs = T_SPEEDPROPS::ResetTimeUs;
|
|
|
|
static void send_pixels(uint8_t* pixels, size_t sizePixels, uint8_t pin)
|
|
{
|
|
// Tried this with a timer/counter, couldn't quite get adequate
|
|
// resolution. So yay, you get a load of goofball NOPs...
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|
uint8_t* ptr = pixels;
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uint8_t* end = ptr + sizePixels;;
|
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uint8_t p = *ptr++;
|
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uint8_t bitMask = 0x80;
|
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uint8_t portNum = g_APinDescription[pin].ulPort;
|
|
uint32_t pinMask = 1ul << g_APinDescription[pin].ulPin;
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volatile uint32_t* set = &(PORT->Group[portNum].OUTSET.reg);
|
|
volatile uint32_t* clr = &(PORT->Group[portNum].OUTCLR.reg);
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|
|
|
for (;;)
|
|
{
|
|
*set = pinMask;
|
|
T_SPEEDPROPS::BitPreWait();
|
|
|
|
if (p & bitMask)
|
|
{
|
|
T_SPEEDPROPS::BitT1hWait();
|
|
*clr = pinMask;
|
|
}
|
|
else
|
|
{
|
|
*clr = pinMask;
|
|
T_SPEEDPROPS::BitT0lWait();
|
|
}
|
|
if (bitMask >>= 1)
|
|
{
|
|
T_SPEEDPROPS::BitPostWait();
|
|
}
|
|
else
|
|
{
|
|
if (ptr >= end)
|
|
{
|
|
break;
|
|
}
|
|
p = *ptr++;
|
|
bitMask = 0x80;
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
typedef NeoArmMethodBase<NeoArmSamd21g18aSpeedBase<NeoArmSamd21g18aSpeedPropsWs2812x>> NeoArmWs2812xMethod;
|
|
typedef NeoArmMethodBase<NeoArmSamd21g18aSpeedBase<NeoArmSamd21g18aSpeedPropsSk6812>> NeoArmSk6812Method;
|
|
typedef NeoArmMethodBase<NeoArmSamd21g18aSpeedBase<NeoArmSamd21g18aSpeedPropsTm1814>> NeoArmTm1814InvertedMethod;
|
|
typedef NeoArmMethodBase<NeoArmSamd21g18aSpeedBase<NeoArmSamd21g18aSpeedPropsTm1829>> NeoArmTm1829InvertedMethod;
|
|
typedef NeoArmMethodBase<NeoArmSamd21g18aSpeedBase<NeoArmSamd21g18aSpeedProps800Kbps>> NeoArm800KbpsMethod;
|
|
typedef NeoArmMethodBase<NeoArmSamd21g18aSpeedBase<NeoArmSamd21g18aSpeedProps400Kbps>> NeoArm400KbpsMethod;
|
|
typedef NeoArm400KbpsMethod NeoArmApa106Method;
|
|
typedef NeoArmTm1814InvertedMethod NeoArmTm1914InvertedMethod;
|
|
|
|
#elif defined(ARDUINO_STM32_FEATHER) || defined(ARDUINO_ARCH_STM32L4) || defined(ARDUINO_ARCH_STM32F4) || defined(ARDUINO_ARCH_STM32F1)// FEATHER WICED (120MHz)
|
|
|
|
class NeoArmStm32SpeedProps800KbpsBase
|
|
{
|
|
public:
|
|
static void BitT1hWait()
|
|
{
|
|
asm("nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop;");
|
|
}
|
|
static void BitT1lWait()
|
|
{
|
|
asm("nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop;");
|
|
}
|
|
static void BitT0hWait()
|
|
{
|
|
asm("nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop;");
|
|
}
|
|
static void BitT0lWait()
|
|
{
|
|
asm("nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop; nop; nop; nop; nop;"
|
|
"nop; nop; nop; nop;");
|
|
}
|
|
};
|
|
|
|
class NeoArmStm32SpeedPropsWs2812x : public NeoArmStm32SpeedProps800KbpsBase
|
|
{
|
|
public:
|
|
static const uint32_t ResetTimeUs = 300;
|
|
};
|
|
|
|
class NeoArmStm32SpeedPropsSk6812 : public NeoArmStm32SpeedProps800KbpsBase
|
|
{
|
|
public:
|
|
static const uint32_t ResetTimeUs = 80;
|
|
};
|
|
|
|
class NeoArmStm32SpeedPropsTm1814 : public NeoArmStm32SpeedProps800KbpsBase
|
|
{
|
|
public:
|
|
static const uint32_t ResetTimeUs = 200;
|
|
};
|
|
|
|
class NeoArmStm32SpeedPropsTm1829 : public NeoArmStm32SpeedProps800KbpsBase
|
|
{
|
|
public:
|
|
static const uint32_t ResetTimeUs = 200;
|
|
};
|
|
|
|
class NeoArmStm32SpeedProps800Kbps : public NeoArmStm32SpeedProps800KbpsBase
|
|
{
|
|
public:
|
|
static const uint32_t ResetTimeUs = 50;
|
|
};
|
|
|
|
/* TODO - not found in Adafruit library
|
|
class NeoArmStm32SpeedProps400Kbps
|
|
{
|
|
static void BitT1hWait()
|
|
{
|
|
}
|
|
static void BitT1lWait()
|
|
{
|
|
}
|
|
static void BitT0hWait()
|
|
{
|
|
}
|
|
static void BitT0lWait()
|
|
{
|
|
}
|
|
};
|
|
*/
|
|
|
|
template<typename T_SPEEDPROPS> class NeoArmStm32SpeedBase
|
|
{
|
|
public:
|
|
static const uint32_t ResetTimeUs = T_SPEEDPROPS::ResetTimeUs;
|
|
|
|
static void send_pixels(uint8_t* pixels, size_t sizePixels, uint8_t pin)
|
|
{
|
|
// Tried this with a timer/counter, couldn't quite get adequate
|
|
// resolution. So yay, you get a load of goofball NOPs...
|
|
|
|
uint8_t* ptr = pixels;
|
|
uint8_t* end = ptr + sizePixels;
|
|
uint8_t p = *ptr++;
|
|
uint8_t bitMask = 0x80;
|
|
|
|
#if defined(ARDUINO_STM32_FEATHER)
|
|
uint32_t pinMask = BIT(PIN_MAP[pin].gpio_bit);
|
|
|
|
volatile uint16_t* set = &(PIN_MAP[pin].gpio_device->regs->BSRRL);
|
|
volatile uint16_t* clr = &(PIN_MAP[pin].gpio_device->regs->BSRRH);
|
|
|
|
#elif defined(ARDUINO_ARCH_STM32F4)
|
|
uint32_t pinMask = BIT(pin & 0x0f);
|
|
|
|
volatile uint16_t* set = &(PIN_MAP[pin].gpio_device->regs->BSRRL);
|
|
volatile uint16_t* clr = &(PIN_MAP[pin].gpio_device->regs->BSRRH);
|
|
|
|
#elif defined(ARDUINO_ARCH_STM32F1)
|
|
|
|
uint32_t pinMask = BIT(PIN_MAP[pin].gpio_bit);
|
|
|
|
volatile uint32_t* set = &(PIN_MAP[pin].gpio_device->regs->BRR);
|
|
volatile uint32_t* clr = &(PIN_MAP[pin].gpio_device->regs->BSRR);
|
|
|
|
#elif defined(ARDUINO_ARCH_STM32L4)
|
|
|
|
uint32_t pinMask = g_APinDescription[pin].bit;
|
|
|
|
GPIO_TypeDef* GPIO = static_cast<GPIO_TypeDef*>(g_APinDescription[pin].GPIO);
|
|
|
|
volatile uint32_t* set = &(GPIO->BRR);
|
|
volatile uint32_t* clr = &(GPIO->BSRR);
|
|
|
|
#endif
|
|
for (;;)
|
|
{
|
|
if (p & bitMask)
|
|
{
|
|
// ONE
|
|
// High 800ns
|
|
*set = pinMask;
|
|
T_SPEEDPROPS::BitT1hWait();
|
|
// Low 450ns
|
|
*clr = pinMask;
|
|
T_SPEEDPROPS::BitT1lWait();
|
|
}
|
|
else
|
|
{
|
|
// ZERO
|
|
// High 400ns
|
|
*set = pinMask;
|
|
T_SPEEDPROPS::BitT0hWait();
|
|
// Low 850ns
|
|
*clr = pinMask;
|
|
T_SPEEDPROPS::BitT0lWait();
|
|
}
|
|
if (bitMask >>= 1)
|
|
{
|
|
// Move on to the next pixel
|
|
asm("nop;");
|
|
}
|
|
else
|
|
{
|
|
if (ptr >= end)
|
|
{
|
|
break;
|
|
}
|
|
|
|
p = *ptr++;
|
|
bitMask = 0x80;
|
|
}
|
|
}
|
|
}
|
|
};
|
|
|
|
typedef NeoArmMethodBase<NeoArmStm32SpeedBase<NeoArmStm32SpeedPropsWs2812x>> NeoArmWs2812xMethod;
|
|
typedef NeoArmMethodBase<NeoArmStm32SpeedBase<NeoArmStm32SpeedPropsSk6812>> NeoArmSk6812Method;
|
|
typedef NeoArmMethodBase<NeoArmStm32SpeedBase<NeoArmStm32SpeedPropsTm1814>> NeoArmTm1814InvertedMethod;
|
|
typedef NeoArmMethodBase<NeoArmStm32SpeedBase<NeoArmStm32SpeedPropsTm1829>> NeoArmTm1829InvertedMethod;
|
|
typedef NeoArmMethodBase<NeoArmStm32SpeedBase<NeoArmStm32SpeedProps800Kbps>> NeoArm800KbpsMethod;
|
|
typedef NeoArm800KbpsMethod NeoArmApa106Method;
|
|
typedef NeoArmTm1814InvertedMethod NeoArmTm1914InvertedMethod;
|
|
|
|
#else // Other ARM architecture -- Presumed Arduino Due
|
|
|
|
|
|
#define ARM_OTHER_SCALE VARIANT_MCK / 2UL / 1000000UL
|
|
#define ARM_OTHER_INST (2UL * F_CPU / VARIANT_MCK)
|
|
|
|
class NeoArmOtherSpeedProps800KbpsBase
|
|
{
|
|
public:
|
|
static const uint32_t CyclesT0h = static_cast<uint32_t>((0.40 * ARM_OTHER_SCALE + 0.5) - (5 * ARM_OTHER_INST));
|
|
static const uint32_t CyclesT1h = static_cast<uint32_t>((0.80 * ARM_OTHER_SCALE + 0.5) - (5 * ARM_OTHER_INST));
|
|
static const uint32_t Cycles = static_cast<uint32_t>((1.25 * ARM_OTHER_SCALE + 0.5) - (5 * ARM_OTHER_INST));
|
|
};
|
|
|
|
class NeoArmOtherSpeedPropsWs2812x : public NeoArmOtherSpeedProps800KbpsBase
|
|
{
|
|
public:
|
|
static const uint32_t ResetTimeUs = 300;
|
|
};
|
|
|
|
class NeoArmOtherSpeedPropsSk6812 : public NeoArmOtherSpeedProps800KbpsBase
|
|
{
|
|
public:
|
|
static const uint32_t ResetTimeUs = 80;
|
|
};
|
|
|
|
class NeoArmOtherSpeedPropsTm1814 : public NeoArmOtherSpeedProps800KbpsBase
|
|
{
|
|
public:
|
|
static const uint32_t ResetTimeUs = 200;
|
|
};
|
|
|
|
class NeoArmOtherSpeedPropsTm1829 : public NeoArmOtherSpeedProps800KbpsBase
|
|
{
|
|
public:
|
|
static const uint32_t ResetTimeUs = 200;
|
|
};
|
|
|
|
class NeoArmOtherSpeedProps800Kbps : public NeoArmOtherSpeedProps800KbpsBase
|
|
{
|
|
public:
|
|
static const uint32_t ResetTimeUs = 50;
|
|
};
|
|
|
|
class NeoArmOtherSpeedProps400Kbps
|
|
{
|
|
public:
|
|
static const uint32_t CyclesT0h = static_cast<uint32_t>((0.50 * ARM_OTHER_SCALE + 0.5) - (5 * ARM_OTHER_INST));
|
|
static const uint32_t CyclesT1h = static_cast<uint32_t>((1.20 * ARM_OTHER_SCALE + 0.5) - (5 * ARM_OTHER_INST));
|
|
static const uint32_t Cycles = static_cast<uint32_t>((2.50 * ARM_OTHER_SCALE + 0.5) - (5 * ARM_OTHER_INST));
|
|
static const uint32_t ResetTimeUs = 50;
|
|
};
|
|
|
|
template<typename T_SPEEDPROPS> class NeoArmOtherSpeedBase
|
|
{
|
|
public:
|
|
static const uint32_t ResetTimeUs = T_SPEEDPROPS::ResetTimeUs;
|
|
|
|
static void send_pixels(uint8_t* pixels, size_t sizePixels, uint8_t pin)
|
|
{
|
|
uint32_t pinMask;
|
|
uint32_t t;
|
|
Pio* port;
|
|
volatile WoReg* portSet;
|
|
volatile WoReg* portClear;
|
|
volatile WoReg* timeValue;
|
|
volatile WoReg* timeReset;
|
|
uint8_t* p;
|
|
uint8_t* end;
|
|
uint8_t pix;
|
|
uint8_t mask;
|
|
|
|
pmc_set_writeprotect(false);
|
|
pmc_enable_periph_clk(static_cast<uint32_t>(TC3_IRQn));
|
|
|
|
TC_Configure(TC1, 0,
|
|
TC_CMR_WAVE | TC_CMR_WAVSEL_UP | TC_CMR_TCCLKS_TIMER_CLOCK1);
|
|
TC_Start(TC1, 0);
|
|
|
|
pinMask = g_APinDescription[pin].ulPin; // Don't 'optimize' these into
|
|
port = g_APinDescription[pin].pPort; // declarations above. Want to
|
|
portSet = &(port->PIO_SODR); // burn a few cycles after
|
|
portClear = &(port->PIO_CODR); // starting timer to minimize
|
|
timeValue = &(TC1->TC_CHANNEL[0].TC_CV); // the initial 'while'.
|
|
timeReset = &(TC1->TC_CHANNEL[0].TC_CCR);
|
|
p = pixels;
|
|
end = p + sizePixels;
|
|
pix = *p++;
|
|
mask = 0x80;
|
|
|
|
for (;;)
|
|
{
|
|
if (pix & mask)
|
|
{
|
|
t = T_SPEEDPROPS::CyclesT1h;
|
|
}
|
|
else
|
|
{
|
|
t = T_SPEEDPROPS::CyclesT0h;
|
|
}
|
|
|
|
// wait for the end of the previous cycle
|
|
while (*timeValue < T_SPEEDPROPS::Cycles);
|
|
|
|
*portSet = pinMask;
|
|
*timeReset = TC_CCR_CLKEN | TC_CCR_SWTRG;
|
|
|
|
while (*timeValue < t);
|
|
|
|
*portClear = pinMask;
|
|
if (!(mask >>= 1))
|
|
{
|
|
// This 'inside-out' loop logic utilizes
|
|
if (p >= end)
|
|
{
|
|
break; // idle time to minimize inter-byte delays.
|
|
}
|
|
pix = *p++;
|
|
mask = 0x80;
|
|
}
|
|
}
|
|
|
|
// not really needed as the wait for latch does this and
|
|
// while (*timeValue < T_SPEEDPROPS::Cycles); // Wait for last bit
|
|
|
|
TC_Stop(TC1, 0);
|
|
}
|
|
};
|
|
|
|
typedef NeoArmMethodBase<NeoArmOtherSpeedBase<NeoArmOtherSpeedPropsWs2812x>> NeoArmWs2812xMethod;
|
|
typedef NeoArmMethodBase<NeoArmOtherSpeedBase<NeoArmOtherSpeedPropsSk6812>> NeoArmSk6812Method;
|
|
typedef NeoArmMethodBase<NeoArmOtherSpeedBase<NeoArmOtherSpeedPropsTm1814>> NeoArmTm1814InvertedMethod;
|
|
typedef NeoArmMethodBase<NeoArmOtherSpeedBase<NeoArmOtherSpeedPropsTm1829>> NeoArmTm1829InvertedMethod;
|
|
typedef NeoArmMethodBase<NeoArmOtherSpeedBase<NeoArmOtherSpeedProps800Kbps>> NeoArm800KbpsMethod;
|
|
typedef NeoArmMethodBase<NeoArmOtherSpeedBase<NeoArmOtherSpeedProps400Kbps>> NeoArm400KbpsMethod;
|
|
typedef NeoArm400KbpsMethod NeoArmApa106Method;
|
|
typedef NeoArmTm1814InvertedMethod NeoArmTm1914InvertedMethod;
|
|
|
|
#endif
|
|
|
|
|
|
// Arm doesn't have alternatives methods yet, so only one to make the default
|
|
typedef NeoArmWs2812xMethod NeoWs2813Method;
|
|
typedef NeoArmWs2812xMethod NeoWs2812xMethod;
|
|
typedef NeoArmWs2812xMethod NeoWs2811Method;
|
|
typedef NeoArmSk6812Method NeoSk6812Method;
|
|
typedef NeoArmSk6812Method NeoLc8812Method;
|
|
typedef NeoArm800KbpsMethod NeoWs2812Method;
|
|
typedef NeoArmApa106Method NeoApa106Method;
|
|
typedef NeoArmWs2812xMethod Neo800KbpsMethod;
|
|
#ifdef NeoArm400KbpsMethod // this is needed due to missing 400Kbps for some platforms
|
|
typedef NeoArm400KbpsMethod Neo400KbpsMethod;
|
|
#endif
|
|
// there is no non-invert methods for arm, but the norm for TM1814 is inverted, so
|
|
typedef NeoArmTm1814InvertedMethod NeoTm1814InvertedMethod;
|
|
typedef NeoArmTm1914InvertedMethod NeoTm1914InvertedMethod;
|
|
typedef NeoArmTm1829InvertedMethod NeoTm1829InvertedMethod;
|
|
|
|
#endif // defined(__arm__)
|
|
|