lpspi_interrupt_b2b_transfer_master
Overview
The lpspi_interrupt_b2b_transfer example shows how to use LPSPI driver in interrupt way:
In this example, we need two boards, one board used as LPSPI master and another board used as LPSPI slave. The file ‘lpspi_interrupt_b2b_transfer_master.c’ includes the LPSPI master code. This example uses the transactional API in LPSPI driver. LPSPI master send/received data to/from LPSPI slave in interrupt. (LPSPI Slave using interrupt to receive/send the data)
Running the demo
When the demo runs successfully, the log would be seen in terminal window:
LPSPI interrupt board to board (b2b) transfer master example.
This example use one board as master and another as slave.
Master and slave uses interrupt way. Slave should start first.
Please make sure you make the correct line connection. Basically, the connection is:
LPSPI_master -- LPSPI_slave
CLK -- CLK
PCS -- PCS
SOUT -- SIN
SIN -- SOUT
GND -- GND
Master transmit:
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
LPSPI transfer all data matched!
Master 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
Press any key to run again