isSPI_I2C_Idle
Is SPI/I2C bus in Idle?
Since R2019b
Library: embeddedCreatorLib ( Dafulai Electronics) / Embedded SPI/I2C Bus Master / isSPI_I2C_Idle
Description
Judge whether embedded SPI/I2C bus is in "Idle" State.
We do any "SPI/I2C bus access " must be under condition : Bus is in "Idle" State.
When embedded "SPI/I2C bus" is in "Idle" state, You can set up all sequences of writing/reading operation, and then bus will exit "Idle" state and operate in sequences for writing/reading automatically. We provide "this block" to check if all sequences finish. In order to start new group of sequences operations next time, you must set bus into "Idle" state when all sequences done.
Parameters
Please double click this block to open parameters dialog below:
Let us explain parameters.
| • | Peripheral Number — tell system which SPI/I2C peripheral is used. You just choose from drop list items which are from block "emSPI_I2CMasterSetup". |
| • | bus type — tell system which bus is used. You just choose from drop list items: SPI bus and I2C bus. |
| • | Sample time in sec (-1 for inherited): — Sample time for this block. It is the same meaning as general Simulink block . |
Ports
Input
None
Outport
None