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Update NeoEsp8266I2sDmx512Method.h (#636)

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This commit is contained in:
Michael Miller
2023-02-03 11:43:04 -08:00
committed by GitHub
parent 2a41ec13ad
commit b8a7f55914
1 changed files with 14 additions and 12 deletions
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26
src/internal/NeoEsp8266I2sDmx512Method.h
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@@ -33,11 +33,13 @@ License along with NeoPixel. If not, see
class NeoEsp8266I2sDmx512SpeedBase
{
public:
// 4.2 us bit send, 250Kbps
static const uint32_t I2sClockDivisor = 21; // 0-63
// 4 us bit send, 250Kbps
static const uint32_t I2sClockDivisor = 20; // 0-63
static const uint32_t I2sBaseClockDivisor = 32; // 0-63
static const uint32_t ByteSendTimeUs = 47; // us it takes to send a single pixel element
static const uint32_t MtbpUs = 100; // min 88
static const uint32_t ByteSendTimeUs = 44; // us it takes to send a single pixel element of 11 bits
static const uint32_t MtbpUs = 100; // // Break, min 88
static const uint32_t MtbpBits = 25; // (MtbpUs/4) count of bits needed for the Mtbp timing
// DMX requires the first slot to be zero
static const size_t HeaderSize = 1;
};
@@ -76,11 +78,12 @@ public:
class NeoEsp8266I2sWs2821SpeedBase
{
public:
// 1.4 us bit send, 750Kbps
static const uint32_t I2sClockDivisor = 7; // 0-63
static const uint32_t I2sBaseClockDivisor = 32; // 0-63
static const uint32_t ByteSendTimeUs = 16; // us it takes to send a single pixel element
static const uint32_t MtbpUs = 33; // min 88
// 1.35 us bit send, 750Kbps
static const uint32_t I2sClockDivisor = 27; // 0-63
static const uint32_t I2sBaseClockDivisor = 8; // 0-63
static const uint32_t ByteSendTimeUs = 15; // us it takes to send a single pixel element of 11 bits
static const uint32_t MtbpUs = 33; // Break
static const uint32_t MtbpBits = 25; // (MtbpUs/1.35) count of bits needed for the Mtbp timing
// DMX/WS2821 requires the first slot to be zero
static const size_t HeaderSize = 1;
};
@@ -134,9 +137,8 @@ public:
// size is rounded up to nearest I2sByteBoundarySize
i2sBufferSize = NeoUtil::RoundUp(i2sBufferSize, I2sByteBoundarySize);
// 4.2 us per bit
size_t i2sZeroesBitsSize = (T_SPEED::MtbpUs) / 4;
size_t i2sZeroesSize = NeoUtil::RoundUp(i2sZeroesBitsSize, 8) / 8;
//
size_t i2sZeroesSize = NeoUtil::RoundUp(T_SPEED::MtbpBits, 8) / 8;
// protocol limits use of full block size to I2sByteBoundarySize
size_t is2BufMaxBlockSize = (c_maxDmaBlockSize / I2sByteBoundarySize) * I2sByteBoundarySize;