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| -rw-r--r-- | docs/library/machine.I2C.rst | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/docs/library/machine.I2C.rst b/docs/library/machine.I2C.rst index 71ca9b0d3..f58912437 100644 --- a/docs/library/machine.I2C.rst +++ b/docs/library/machine.I2C.rst @@ -131,6 +131,20 @@ operations that target a given slave device. generated at the end of the transfer, even if a NACK is received. The function returns the number of ACKs that were received. +.. method:: I2C.writevto(addr, vector, stop=True) + + Write the bytes contained in *vector* to the slave specified by *addr*. + *vector* should be a tuple or list of objects with the buffer protocol. + The *addr* is sent once and then the bytes from each object in *vector* + are written out sequentially. The objects in *vector* may be zero bytes + in length in which case they don't contribute to the output. + + If a NACK is received following the write of a byte from one of the + objects in *vector* then the remaining bytes, and any remaining objects, + are not sent. If *stop* is true then a STOP condition is generated at + the end of the transfer, even if a NACK is received. The function + returns the number of ACKs that were received. + Memory operations ----------------- |