jeans/WLED
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first implementation

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This commit is contained in:
PaoloTK 2024-08-01 20:25:18 +02:00
parent ef8f23ce90
commit 5c247d2833
1 changed files with 16 additions and 10 deletions
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26
wled00/bus_manager.cpp
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@ -40,6 +40,19 @@ uint8_t realtimeBroadcast(uint8_t type, IPAddress client, uint16_t length, byte
#define DEBUG_PRINTF_P(x...) #define DEBUG_PRINTF_P(x...)
#endif #endif
// ESP8266 has 1 MHz clock
#ifdef ESP8266
#define CLOCK_FREQUENCY 1e6f
#else
// Use XTAL clock if possible to avoid timer frequency error when setting APB clock < 80 Mhz
// https://github.com/espressif/arduino-esp32/blob/2.0.2/cores/esp32/esp32-hal-ledc.c
#ifdef SOC_LEDC_SUPPORT_XTAL_CLOCK
#define CLOCK_FREQUENCY 40e6f
#else
#define CLOCK_FREQUENCY 80e6f
#endif
#endif
//color mangling macros //color mangling macros
#define RGBW32(r,g,b,w) (uint32_t((byte(w) << 24) | (byte(r) << 16) | (byte(g) << 8) | (byte(b)))) #define RGBW32(r,g,b,w) (uint32_t((byte(w) << 24) | (byte(r) << 16) | (byte(g) << 8) | (byte(b))))
#define R(c) (byte((c) >> 16)) #define R(c) (byte((c) >> 16))
@ -384,12 +397,10 @@ BusPwm::BusPwm(BusConfig &bc)
if (!IS_PWM(bc.type)) return; if (!IS_PWM(bc.type)) return;
unsigned numPins = NUM_PWM_PINS(bc.type); unsigned numPins = NUM_PWM_PINS(bc.type);
_frequency = bc.frequency ? bc.frequency : WLED_PWM_FREQ; _frequency = bc.frequency ? bc.frequency : WLED_PWM_FREQ;
// duty cycle resolution (_depth) can be extracted from this formula: CLOCK_FREQUENCY > _frequency * 2^_depth
_depth = uint8_t(log((float)CLOCK_FREQUENCY / (float)_frequency) / log(2.0));
#ifdef ESP8266 #ifdef ESP8266
// duty cycle resolution (_depth) can be extracted from this formula: 1MHz > _frequency * 2^_depth
if (_frequency > 1760) _depth = 8;
else if (_frequency > 880) _depth = 9;
else _depth = 10; // WLED_PWM_FREQ <= 880Hz
analogWriteRange((1<<_depth)-1); analogWriteRange((1<<_depth)-1);
analogWriteFreq(_frequency); analogWriteFreq(_frequency);
#else #else
@ -397,11 +408,6 @@ BusPwm::BusPwm(BusConfig &bc)
if (_ledcStart == 255) { //no more free LEDC channels if (_ledcStart == 255) { //no more free LEDC channels
deallocatePins(); return; deallocatePins(); return;
} }
// duty cycle resolution (_depth) can be extracted from this formula: 80MHz > _frequency * 2^_depth
if (_frequency > 78124) _depth = 9;
else if (_frequency > 39062) _depth = 10;
else if (_frequency > 19531) _depth = 11;
else _depth = 12; // WLED_PWM_FREQ <= 19531Hz
#endif #endif
for (unsigned i = 0; i < numPins; i++) { for (unsigned i = 0; i < numPins; i++) {
@ -419,7 +425,7 @@ BusPwm::BusPwm(BusConfig &bc)
} }
_data = _pwmdata; // avoid malloc() and use stack _data = _pwmdata; // avoid malloc() and use stack
_valid = true; _valid = true;
DEBUG_PRINTF_P(PSTR("%successfully inited PWM strip with type %u and pins %u,%u,%u,%u,%u\n"), _valid?"S":"Uns", bc.type, _pins[0], _pins[1], _pins[2], _pins[3], _pins[4]); DEBUG_PRINTF_P(PSTR("%successfully inited PWM strip with type %u, frequency %u, bit depth %u and pins %u,%u,%u,%u,%u\n"), _valid?"S":"Uns", bc.type, _frequency, _depth, _pins[0], _pins[1], _pins[2], _pins[3], _pins[4]);
} }
void BusPwm::setPixelColor(uint16_t pix, uint32_t c) { void BusPwm::setPixelColor(uint16_t pix, uint32_t c) {