Fix SPISettings frequency parameters in ESP32 HW SPI (#13573)
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@ -44,6 +44,15 @@ static SPISettings spiConfig;
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// Public functions
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// --------------------------------------------------------------------------
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#if ENABLED(SOFTWARE_SPI)
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// --------------------------------------------------------------------------
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// Software SPI
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// --------------------------------------------------------------------------
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#error "Software SPI not supported for ESP32. Use Hardware SPI."
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#else
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// --------------------------------------------------------------------------
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// Hardware SPI
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// --------------------------------------------------------------------------
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@ -61,13 +70,14 @@ void spiInit(uint8_t spiRate) {
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uint32_t clock;
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switch (spiRate) {
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case SPI_FULL_SPEED: clock = SPI_CLOCK_DIV2; break;
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case SPI_HALF_SPEED: clock = SPI_CLOCK_DIV4; break;
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case SPI_QUARTER_SPEED: clock = SPI_CLOCK_DIV8; break;
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case SPI_EIGHTH_SPEED: clock = SPI_CLOCK_DIV16; break;
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case SPI_SPEED_5: clock = SPI_CLOCK_DIV32; break;
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case SPI_SPEED_6: clock = SPI_CLOCK_DIV64; break;
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default: clock = SPI_CLOCK_DIV2; // Default from the SPI library
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case SPI_FULL_SPEED: clock = 16000000; break;
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case SPI_HALF_SPEED: clock = 8000000; break;
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case SPI_QUARTER_SPEED: clock = 4000000; break;
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case SPI_EIGHTH_SPEED: clock = 2000000; break;
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case SPI_SIXTEENTH_SPEED: clock = 1000000; break;
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case SPI_SPEED_5: clock = 500000; break;
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case SPI_SPEED_6: clock = 250000; break;
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default: clock = 1000000; // Default from the SPI library
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}
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spiConfig = SPISettings(clock, MSBFIRST, SPI_MODE0);
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@ -106,4 +116,6 @@ void spiBeginTransaction(uint32_t spiClock, uint8_t bitOrder, uint8_t dataMode)
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SPI.beginTransaction(spiConfig);
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}
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#endif // !SOFTWARE_SPI
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#endif // ARDUINO_ARCH_ESP32
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