With MPC5748G dspi demo(DSPI_MASTER_MPC5748g),config DSPI0 with master node and SPI0 with slave node.
the init scrips is as belows:
DSPI_MasterInit(DSPI0_INSTANCE, &dspi1State, &dspi1_MasterInitConfig0);
/* SPI slave configuration: clock speed: 500 kHz, 8 bits/frame, MSB first */
DSPI_SlaveInit(SPI0_INSTANCE, &dspi2State, &dspi2_SlaveInitConfig0);
/* Configure delay between transfer, delay between SCK and PCS and delay between PCS and SCK */
DSPI_MasterSetDelay(DSPI0_INSTANCE, 1, 1, 1);
and in while functon,the script is as belows:
DSPI_SlaveTransfer(SPI0_INSTANCE, slave_buffer.tx, slave_buffer.rx, NUMBER_OF_FRAMES);
DSPI_MasterTransferBlocking(DSPI0_INSTANCE, master_buffer.tx, master_buffer.rx, NUMBER_OF_FRAMES, TIMEOUT);
after building and when debuging the script,I see master can receive data from slave node correctly,but slave node can't receive data from master,the slave receive buffer is 0.
I have attached all the related configuration file,is there any thing wrong with the configuration?please help to check where is the problem,thank you.
so you modify the default project to add DMA mode for slave.
I tried to do the same, besides a config you have I changed DMA component to have
Then after generating PE code and build I tested it on DEVKIT board with below connection
Both the slave and master receive data properly.