elixir_ale v0.5.4 Spi
This module enables Elixir programs to interact with hardware that’s connected via a SPI bus.
Summary
Functions
Stop the GenServer and release the SPI resources
Start and link a SPI GenServer
Perform a SPI transfer. The data
should be a binary containing the bytes to
send. Since SPI transfers simultaneously send and receive, the return value
will be a binary of the same length
Functions
Start and link a SPI GenServer.
SPI bus options include:
mode
: This specifies the clock polarity and phase to use. (0)
bits_per_word
: bits per word on the bus (8)
speed_hz
: bus speed (1000000)
delay_us
: delay between transations (10)
Parameters:
devname
is the Linux device name for the bus (e.g., “spidev0.0”)
spi_opts
is a keyword list to configure the bus
opts
are any options to pass to GenServer.start_link