Module e310x_hal::spi

Serial Peripheral Interface

You can use the Spi interface with these SPI instances

QSPI0

• Interrupt::QSPI0

QSPI1

• MOSI: Pin 3 IOF0
• MISO: Pin 4 IOF0
• SCK: Pin 5 IOF0
• CS0: Pin 2 IOF0
• CS1: Pin 8 IOF0 (not connected to package in FE310)
• CS2: Pin 9 IOF0
• CS3: Pin 10 IOF0
• Interrupt::QSPI1

QSPI2

Warning: QSPI2 pins are not connected to package in FE310

• MOSI: Pin 27 IOF0
• MISO: Pin 28 IOF0
• SCK: Pin 29 IOF0
• CS: Pin 26 IOF0
• Interrupt::QSPI2

Exclusive Bus usage example

 let pins = (mosi, miso, sck, cs0);
 let spi_bus = SpiBus::new(p.QSPI1, pins);

 let spi_config = SpiConfig::new(MODE_0, 100.khz().into(), &clocks);
 let mut dev = spi_bus.new_device(&spi_config);

 dev.write(&[1, 2, 3]).unwrap();

Shared Bus usage example

 let pins = (mosi, miso, sck);
 let spi_bus = SpiBus::shared(p.QSPI1, pins);

 let spi_config1 = SpiConfig::new(MODE_0, 100.khz().into(), &clocks);
 let mut dev1 = spi_bus.new_device(cs0, &spi_config1);

 let spi_config2 = SpiConfig::new(MODE_3, 2.mhz().into(), &clocks);
 let mut dev2 = spi_bus.new_device(cs1, &spi_config2);

 dev1.write(&[1, 2, 3]).unwrap();
 dev2.write(&[4, 5]).unwrap();

Structs

• Mode
  SPI mode
• SharedBus
  Newtype for RefCell locked behind a Mutex. Used to hold the SpiBus instance so it can be used for multiple SpiSharedDevice instances.
• SpiBus
  SPI bus abstraction
• SpiConfig
  SPI Bus configuration SPI Bus configuration
• SpiDelayConfig
  Configuration values for CS and SCK related delays
• SpiExclusiveDevice
  SPI exclusive device abstraction
• SpiSharedDevice
  SPI shared device abstraction

Enums

• Phase
  Clock phase
• Polarity
  Clock polarity

Constants

• MODE_0
  Helper for CPOL = 0, CPHA = 0
• MODE_1
  Helper for CPOL = 0, CPHA = 1
• MODE_2
  Helper for CPOL = 1, CPHA = 0
• MODE_3
  Helper for CPOL = 1, CPHA = 1

Traits

• FullDuplex
  Full duplex (master mode)
• PinCS
  SPI Chip Select pin - DO NOT IMPLEMENT THIS TRAIT
• Pins
  SPI pins - DO NOT IMPLEMENT THIS TRAIT
• PinsNoCS
  SPI pins without CS - DO NOT IMPLEMENT THIS TRAIT
• Transfer
  Blocking transfer
• Write
  Blocking write
• WriteIter
  Blocking write (iterator version)