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Attempted 400Khz support

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This commit is contained in:
Andrew Melvin
2015-08-24 19:06:34 +01:00
parent bca827145d
commit 6a669f9390
1 changed files with 39 additions and 3 deletions
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42
NeoPixelBus.cpp
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@@ -100,7 +100,25 @@ NeoPixelBus::~NeoPixelBus()
#ifdef ESPUARTWS2812
/* Serial rate is 4x 800KHz for WS2811 */
#ifdef INCLUDE_NEO_KHZ400_SUPPORT
if ((_flagsPixels & NEO_SPDMASK) == NEO_KHZ800)
{
// 800 Support
Serial1.begin(3200000, SERIAL_6N1, SERIAL_TX_ONLY);
} else {
// 400 Support
Serial1.begin(1600000, SERIAL_6N1, SERIAL_TX_ONLY);
}
#else
Serial1.begin(3200000, SERIAL_6N1, SERIAL_TX_ONLY);
#endif
CLEAR_PERI_REG_MASK(UART_CONF0(UART), UART_INV_MASK);
//SET_PERI_REG_MASK(UART_CONF0(UART), UART_TXD_INV);
SET_PERI_REG_MASK(UART_CONF0(UART), (BIT(22)));
@@ -758,6 +776,7 @@ void NeoPixelBus::Show(void)
if ((_flagsPixels & NEO_SPDMASK) == NEO_KHZ800)
{
#endif
#ifndef ESPUARTWS2812
// 800 KHz bitstream
send_pixels_800(p, end, _pin);
@@ -777,16 +796,33 @@ void NeoPixelBus::Show(void)
} while (p < end);
#endif
#ifdef INCLUDE_NEO_KHZ400_SUPPORT
}
else
{
// 400 kHz bitstream
#ifndef ESPUARTWS2812
// 800 KHz bitstream
send_pixels_400(p, end, _pin);
#else
char buff[4];
do
{
uint8_t subpix = *p++;
buff[0] = data[(subpix >> 6) & 3];
buff[1] = data[(subpix >> 4) & 3];
buff[2] = data[(subpix >> 2) & 3];
buff[3] = data[subpix & 3];
Serial1.write(buff, sizeof(buff));
} while (p < end);
#endif
}
#endif