Simple McBSP application on C674x

Hi,

after getting McASP working, I started studying McBSP and wanted to see a clock signal on the CLKR pin. I've done following:

#define PINMUX_MCBSP1_REG       (1)
#define PINMUX_MCBSP1_MASK      (0x00F0F0F0)
#define PINMUX_MCBSP1_VAL       (0x00202020)

#define MCBSP0_REG_BASE        (0x01D10000)
#define MCBSP0_FIFO_REG_BASE   (0x01D10800)

#define MCBSP1_REG_BASE        (0x01D11000)
#define MCBSP1_FIFO_REG_BASE   (0x01D11800)

typedef __attribute__((packed)) struct
{
   volatile uint32_t DRR;        // 0x00
   volatile uint32_t DXR;        // 0x04
   volatile uint32_t SPCR;
   volatile uint32_t RCR;
   volatile uint32_t XCR;
   volatile uint32_t SRGR;
   volatile uint32_t MCR;
   volatile uint32_t RCERE0;
   volatile uint32_t XCERE0;
   volatile uint32_t PCR;
   volatile uint32_t RCERE1;
   volatile uint32_t XCERE1;
   volatile uint32_t RCERE2;
   volatile uint32_t XCERE2;
   volatile uint32_t RCERE3;
   volatile uint32_t XCERE3;    // 0x3C       
} mcbsp_regs_t;

#define MCBSP0 ((mcbsp_regs_t *)MCBSP0_REG_BASE)
#define MCBSP1 ((mcbsp_regs_t *)MCBSP1_REG_BASE)

So, this should be mapped right on the McBSPX registers.(?)

// SPCR
#define RRST (0x01 << 0)
#define DLB (0x01 << 15)
#define XRST (0x01 << 16)
#define GRST (0x01 << 22)
#define FRST (0x01 << 23)
#define FREE (0x01 << 25)

// SRGR
#define CLKSM (0x01 << 29)
#define FSGM (0x01 << 28)
//#define FPER (0x01 <<
//#define FWID (0x01 <<
//#define CLKDV (0x01 <<

// PCR
#define FSXM (0x01 << 11)
#define FSRM (0x01 << 10)
#define CLKXM (0x01 << 9)
#define CLKRM (0x01 << 8)
#define SCLKME (0x01 << 7)

    LED_turnOff(LED_1);
    LED_turnOff(LED_2);

    EVMOMAPL138_lpscTransition(PSC1, DOMAIN0, LPSC_MCBSP1, PSC_ENABLE);
    EVMOMAPL138_pinmuxConfig(PINMUX_MCBSP1_REG, PINMUX_MCBSP1_MASK, PINMUX_MCBSP1_VAL);

    // reset
    MCBSP1->SPCR = 0x00000000;

    // enusure still in reset
    while (CHKBIT(MCBSP1->SPCR, GRST) == 1);
    while (CHKBIT(MCBSP1->SPCR, FRST) == 1);
    while (CHKBIT(MCBSP1->SPCR, XRST) == 1);
    while (CHKBIT(MCBSP1->SPCR, RRST) == 1);

    Task_sleep(100);
    // reset done
 
    // configure control registers

    SETBIT(MCBSP1->PCR, FSXM);   // FSX generated internally
    SETBIT(MCBSP1->PCR, FSRM);   // FSR generated internally
    SETBIT(MCBSP1->PCR, CLKXM);  // CLKX generated internally
    SETBIT(MCBSP1->PCR, CLKRM);  // CLKR generated internally
    SETBIT(MCBSP1->PCR, SCLKME); // select internal input clock

    // CLKSM = FSGM = 1, FPER = 8, FWID = 2, CLKDV = 10
    MCBSP1->SRGR = 0x3008020A;  

    SETBIT(MCBSP1->SPCR, FREE);
    CLRBIT(MCBSP1->SPCR, DLB);    

    // ensure still in reset
    while (CHKBIT(MCBSP1->SPCR, GRST) == 1);
    while (CHKBIT(MCBSP1->SPCR, FRST) == 1);
    while (CHKBIT(MCBSP1->SPCR, XRST) == 1);
    while (CHKBIT(MCBSP1->SPCR, RRST) == 1);
 
    // start clocks, get out of reset
    Task_sleep(100);
    SETBIT(MCBSP1->SPCR, GRST);
    SETBIT(MCBSP1->SPCR, FRST);
    SETBIT(MCBSP1->SPCR, XRST);
    SETBIT(MCBSP1->SPCR, RRST);
    Task_sleep(100);

    LED_turnOn(LED_1);
    Task_sleep(20*1e3);

So, LED1 is turning on, but there is no clock signal on the CLKR pin. I guess I am missing something...