esp_metadata_generated

Macro for_each_spi_master

Source 
macro_rules! for_each_spi_master {
    ($($pattern:tt => $code:tt;)*) => { ... };
}
Available on crate feature _device-selected only.
Expand description

This macro can be used to generate code for each peripheral instance of the SPI master driver.

For an explanation on the general syntax, as well as usage of individual/repeated matchers, refer to the crate-level documentation.

This macro has one option for its “Individual matcher” case:

Syntax: ($instance:ident, $sys:ident, $sclk:ident, [$($cs:ident),*] [$($sio:ident),* $($is_qspi:iteral)?])

Macro fragments:

  • $instance: the name of the SPI instance
  • $sys: the name of the instance as it is in the esp_hal::system::Peripheral enum.
  • $cs, $sio: chip select and SIO signal names.
  • $is_qspi: a true literal present if the SPI instance supports QSPI.

Example data:

  • (SPI2, Spi2, FSPICLK [FSPICS0, FSPICS1, FSPICS2, FSPICS3, FSPICS4, FSPICS5] [FSPID, FSPIQ, FSPIWP, FSPIHD, FSPIIO4, FSPIIO5, FSPIIO6, FSPIIO7], true)
  • (SPI3, Spi3, SPI3_CLK [SPI3_CS0, SPI3_CS1, SPI3_CS2] [SPI3_D, SPI3_Q])