Hi Tim, I configured the sample rate generator for McBSP2 on the 5407. Using for one of the two available in 5402 may be similar. The basic steps are: 1) reset McBSP; 2) configure the sample rate generator registers; 3) put it back to work The following C code was used... I hope this helps... Believer ------ begin of C code ------------- /*--- McBSP0 & McBSP1 Sub-Bank Addressed Registers ---*/ #define SPCR1 0x0000; /* Ser Port Ctrl Reg1 */ #define SPCR2 0x0001; /* Ser Port Ctrl Reg2 */ #define RCR1 0x0002; /* Rx Ctrl Reg1 */ #define RCR2 0x0003; /* Rx Ctrl Reg2 */ #define XCR1 0x0004; /* Tx Ctrl Reg1 */ #define XCR2 0x0005; /* Tx Ctrl Reg2 */ #define SRGR1 0x0006; /* Sample Rate Gen Reg1 */ #define SRGR2 0x0007; /* Sample Rate Gen Reg2 */ #define MCR1 0x0008; /* Multichan Reg1 */ #define MCR2 0x0009; /* Multichan Reg2 */ #define RCERA 0x000A; /* Rx Chan Enable Reg Partition A */ #define RCERB 0x000B; /* Rx Chan Enable Reg Partition B */ #define XCERA 0x000C; /* Tx Chan Enable Reg Partition A */ #define XCERB 0x000D; /* Tx Chan Enable Reg Partition B */ #define PCR 0x000E; /* Pin Ctrl Reg */ /*--- McBSP0 Registers ---*/ volatile int *McBSP0_SPSA0 = (volatile int *)0x0038; /* Sub Bank Addr Reg */ volatile int *McBSP0_SPSD0 = (volatile int *)0x0039; /* Sub Bank Addr Reg */ /*--- McBSP1 Registers ---*/ volatile int *McBSP0_SPSA1 = (volatile int *)0x0048; /* Sub Bank Addr Reg */ volatile int *McBSP0_SPSD1 = (volatile int *)0x0049; /* Sub Bank Addr Reg */ /*--- McBSP2 Registers ---*/ volatile int *McBSP0_SPSA2 = (volatile int *)0x0034; /* Sub Bank Addr Reg */ volatile int *McBSP0_SPSD2 = (volatile int *)0x0035; /* Sub Bank Addr Reg */ *McBSP0_SPSA2 = SPCR2; *McBSP0_SPSD2 = 0x20; // MSB> 0000 0000 0010 0000 <LSB *McBSP0_SPSA2 = PCR; *McBSP0_SPSD2 = 0xA00; // MSB> 0000 1010 0000 0000 <LSB *McBSP0_SPSA2 = SRGR1; *McBSP0_SPSD2 = 0x1F; *McBSP0_SPSA2 = SRGR2; *McBSP0_SPSD2 = 0x3020; // MSB> 0011 0000 0010 0000 <LSB *McBSP0_SPSA2 = SPCR2; *McBSP0_SPSD2 = 0xE1; // MSB> 0000 0000 1110 0001 <LSB ------ end of C code ------------- --- In , "blindf22" <tim.king@p...> wrote: > I want to create a continuous clock (set by the baud rate registers) > and fsync from the MCBSP and im not sure what bits need to be set in > the baud rate registers to make this work. I have tried and got the > fsync working but not the clock. Can anyone help? > > Tim King > CES Communications Ltd. > New Zealand |