Joo hyun Jang

DSPI to Slave mode

Discussion created by Joo hyun Jang on Mar 23, 2011
Latest reply on Feb 21, 2012 by Joo hyun Jang

Hi All.



 I'm currently using MPC5604P products.

This product is using the DSPI communication.

MCU is a Slave. 


             DSPI_1.MCR.R = 0x00010001;           /* Configure DSPI_1 as slave */
             DSPI_1.CTAR[0].R = 0x7A0A7727;     /* Configure CTAR0 */
             DSPI_1.MCR.B.HALT = 0x0;                 /* Exit HALT mode: go from STOPPED to RUNNING state*/
             DSPI_1.RSER.B.RFDFRE = 1;            /* Receive FIFO drain request enable */

             SIU.PCR[6].R = 0x0503;                        /* MPC56xxP: Config pad as DSPI_1 SCK input */
             SIU.PCR[8].R = 0x0103;                        /* MPC56xxP: Config pad as DSPI_1 SIN input */
             SIU.PCR[7].R = 0x0604;                        /* MPC56xxP: Config pad as DSPI_1 SOUT output*/
                    SIU.PCR[5].R = 0x0503;                        /* MPC56xxP: Config pad as DSPI_1 PCS0/SS input */




       Master <--------------------> Slave
Data_MOSI_0                     Data_MISO_ 0
Data_MOSI_1                     Data_MISO_ 1
Data_MOSI_2                     Data_MISO_ 2
Data_MOSI_3                     Data_MISO_ 3
Data_MOSI_4                     Data_MISO_ 4
Data_MOSI_5                     Data_MISO_ 5

Interrupters using the Master program coding side, thinking about Data_MOSI_0 to Data_MISO_1 responses.

If you need to communicate the above in Data_MISO_0 Data are wondering how to save.



Thank you.