Trait cortex_m::prelude::_embedded_hal_blocking_i2c_WriteRead [−][src]
Blocking write + read
Associated Types
Loading content...Required methods
pub fn write_read(
&mut self,
address: u8,
bytes: &[u8],
buffer: &mut [u8]
) -> Result<(), Self::Error>
[src]
&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 followed by bit 0 to indicate writingSAK
= slave acknowledgeOi
= ith outgoing byte of dataSR
= repeated start conditionSAD+R
= slave address followed by bit 1 to indicate readingIi
= ith incoming byte of dataMAK
= master acknowledgeNMAK
= master no acknowledgeSP
= stop condition