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Fix SPISettings frequency parameters in ESP32 HW SPI (#13573)

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This commit is contained in:
Kajetan Rzepecki 2019-04-05 06:17:14 +02:00 committed by Scott Lahteine
parent 63d95862fa
commit 692a0198f9
1 changed files with 19 additions and 7 deletions
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26
Marlin/src/HAL/HAL_ESP32/HAL_spi_ESP32.cpp
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@ -44,6 +44,15 @@ static SPISettings spiConfig;
// Public functions // Public functions
// -------------------------------------------------------------------------- // --------------------------------------------------------------------------
#if ENABLED(SOFTWARE_SPI)
// --------------------------------------------------------------------------
// Software SPI
// --------------------------------------------------------------------------
#error "Software SPI not supported for ESP32. Use Hardware SPI."
#else
// -------------------------------------------------------------------------- // --------------------------------------------------------------------------
// Hardware SPI // Hardware SPI
// -------------------------------------------------------------------------- // --------------------------------------------------------------------------
@ -61,13 +70,14 @@ void spiInit(uint8_t spiRate) {
uint32_t clock; uint32_t clock;
switch (spiRate) { switch (spiRate) {
case SPI_FULL_SPEED: clock = SPI_CLOCK_DIV2; break; case SPI_FULL_SPEED: clock = 16000000; break;
case SPI_HALF_SPEED: clock = SPI_CLOCK_DIV4; break; case SPI_HALF_SPEED: clock = 8000000; break;
case SPI_QUARTER_SPEED: clock = SPI_CLOCK_DIV8; break; case SPI_QUARTER_SPEED: clock = 4000000; break;
case SPI_EIGHTH_SPEED: clock = SPI_CLOCK_DIV16; break; case SPI_EIGHTH_SPEED: clock = 2000000; break;
case SPI_SPEED_5: clock = SPI_CLOCK_DIV32; break; case SPI_SIXTEENTH_SPEED: clock = 1000000; break;
case SPI_SPEED_6: clock = SPI_CLOCK_DIV64; break; case SPI_SPEED_5: clock = 500000; break;
default: clock = SPI_CLOCK_DIV2; // Default from the SPI library case SPI_SPEED_6: clock = 250000; break;
default: clock = 1000000; // Default from the SPI library
} }
spiConfig = SPISettings(clock, MSBFIRST, SPI_MODE0); spiConfig = SPISettings(clock, MSBFIRST, SPI_MODE0);
@ -106,4 +116,6 @@ void spiBeginTransaction(uint32_t spiClock, uint8_t bitOrder, uint8_t dataMode)
SPI.beginTransaction(spiConfig); SPI.beginTransaction(spiConfig);
} }
#endif // !SOFTWARE_SPI
#endif // ARDUINO_ARCH_ESP32 #endif // ARDUINO_ARCH_ESP32