bissen21/Marlin_Firmware
1
0
Fork 0
Code Issues Pull Requests Projects Releases 4 Wiki Activity

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

Browse Source
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
Download Patch File Download Diff File Expand all files Collapse all files

26
Marlin/src/HAL/HAL_ESP32/HAL_spi_ESP32.cpp
View File

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