lpspi_polling_b2b_transfer_slave#
Overview#
The lpspi_polling_b2b_transfer example shows how to use LPSPI driver using polling.
In this example, we need two boards, one board used as LPSPI master and another board used as LPSPI slave. The file ‘lpspi_polling_b2b_transfer_slave.c’ includes the LPSPI slave code.
The LPSPI master send/received data to/from LPSPI slave using polling (the LPSPI slave is using interrupt to receive/send the data).
Running the demo#
When the demo runs successfully, you will see output in the terminal like this:
LPSPI board to board polling example.
Slave example is running...
This is LPSPI slave transfer completed callback.
It's a successful transfer.
This is LPSPI slave transfer completed callback.
It's a successful transfer.
Slave received:
1 2 3 4 5 6 7 8 9 A B C D E F 10
11 12 13 14 15 16 17 18 19 1A 1B 1C 1D 1E 1F 20
21 22 23 24 25 26 27 28 29 2A 2B 2C 2D 2E 2F 30
31 32 33 34 35 36 37 38 39 3A 3B 3C 3D 3E 3F 40
Slave example is running...