Trait embedded_hal::blocking::i2c::WriteRead
[−]
[src]
pub trait WriteRead { type Error; fn write_read(
&mut self,
address: u8,
bytes: &[u8],
buffer: &mut [u8]
) -> Result<(), Self::Error>; }
Blocking write + read
Associated Types
type Error
Error type
Required Methods
fn write_read(
&mut self,
address: u8,
bytes: &[u8],
buffer: &mut [u8]
) -> Result<(), Self::Error>
&mut self,
address: u8,
bytes: &[u8],
buffer: &mut [u8]
) -> Result<(), Self::Error>
Sends bytes to slave with address addr
and then reads enough bytes to fill buffer
in a
single transaction
I2C Events (contract)
Master: ST SAD+W O0 O1 ... OM SR SAD+R MAK MAK ... NMAK SP
Slave: SAK SAK SAK ... SAK SAK I0 I1 ... IN
Where
ST
= start conditionSAD+W
= slave address with 8th bit set to 0SAK
= slave acknowledgeOi
= ith outgoing byte of dataSR
= repeated start conditionSAD+R
= slave address with 8th bit set to 1Ii
= ith incoming byte of dataMAK
= master acknowledgeNMAK
= master no acknowledgeSP
= stop condition