Reply by Tao Wang ●July 2, 20022002-07-02
Hi, c6xers,

I am newer to c6000 and I meet problem in test McBSP. I connect two c6201 on
Pentek 4290 through McBSP0 as: CLKX<->CLKR, FSR<->FSR, DR<->DX. I use the
example of spra455a, spra488b, spra551a and make some change: each DSP transfer
and recieve 256 32bit words. I transfer 0 to 255. In the one that I start first
I get 0xFFFFFFFF, 0x00000000(0) to 0x000000FE(254) and in the one I start second
I get all 0x000000FF.

I have test with poll and interrupt mode of McBSP as well as the DMA mode the
example use. I found that:
1. XRDY seems to have no use: if I start the transmitter only it write along
till end in spite whether the receiver work or not.
2. At the reciever if I enable SRGR(GRST=1) before reading McBSP I will get a 0
or 0xffffffff first,i.e., no matter the transmitter work or not the RRDY is set
after out of reset.
3. If I enable frame sync generator before write McBSP I will get a zero first
at the reciever. If I enable frame sync generator after a write to McBSP there
is no this problem.
4. After the transmision I must disable frame sync generator to let another
transmission can work.

Here is the program I used(DMA mode, run on both DSPs):

// main function file mcbsp_dsp.c
#define CHIP_6201

#include <c6x.h>
#include <csl.h>
#include <csl_irq.h>
#include <csl_dma.h>
#include <csl_mcbsp.h>

#define BUFFER_SIZE 256

int recv0_done = 0;
int xmit0_done = 0;

unsigned int wait = 0;

static Uint32 dmaInbuff[BUFFER_SIZE];
static Uint32 dmaOutbuff[BUFFER_SIZE];

MCBSP_Handle hMcbsp0;

DMA_Handle hDma0;
DMA_Handle hDma1;

void init_mcbsp0(void);
void set_interrupts(void);
void init_dma0(void);
void init_dma1(void);

interrupt void nmiIsr(void);
interrupt void int4Isr(void);
interrupt void int5Isr(void);
interrupt void int6Isr(void);
interrupt void int7Isr(void);
interrupt void int8Isr(void);
interrupt void int9Isr(void);
interrupt void int10Isr(void);
interrupt void int11Isr(void);
interrupt void int12Isr(void);
interrupt void int13Isr(void);
interrupt void int14Isr(void);
interrupt void int15Isr(void);

void main(void)
{
IRQ_setVecs((void*)0x03000000);

CSL_init();
IRQ_resetAll();

init_mcbsp0();
MCBSP_enableSrgr(hMcbsp0);
for(wait=0; wait<20; wait++); // Wait 2 CLKG bit clocks

DMA_reset(INV); /* reset all DMA channels */

for (wait=0;wait<BUFFER_SIZE;wait++)
{
dmaOutbuff[wait]=0x0000000+wait; /* Initialize the transmit buffer */
dmaInbuff[wait]=0; /* Initialize the receive buffer */
}

init_dma0();
init_dma1();

set_interrupts();

DMA_start(hDma0);
DMA_start(hDma1);

MCBSP_enableRcv(hMcbsp0);
MCBSP_enableXmt(hMcbsp0);
MCBSP_enableFsync(hMcbsp0);

/* Wait for interrupt to the CPU when DMA transfer/receive is done */
while (!xmit0_done || !recv0_done);

DMA_stop(hDma0);
DMA_stop(hDma1);

MCBSP_close(hMcbsp0);
DMA_close(hDma0);
DMA_close(hDma1);
}

void init_mcbsp0(void)
{
MCBSP_Config mcbspCfg0 =
{
MCBSP_SPCR_RMK(MCBSP_SPCR_FRST_YES,
MCBSP_SPCR_GRST_YES,
MCBSP_SPCR_XINTM_XRDY,
MCBSP_SPCR_XRST_YES,
MCBSP_SPCR_DLB_OFF,
MCBSP_SPCR_RJUST_RZF,
MCBSP_SPCR_CLKSTP_DISABLE,
MCBSP_SPCR_RINTM_RRDY,
MCBSP_SPCR_RSYNCERR_NO,
MCBSP_SPCR_RRST_YES),
MCBSP_RCR_RMK(MCBSP_RCR_RPHASE_SINGLE,
MCBSP_RCR_RFRLEN2_DEFAULT,
MCBSP_RCR_RWDLEN2_DEFAULT,
MCBSP_RCR_RCOMPAND_MSB,
MCBSP_RCR_RFIG_YES,
MCBSP_RCR_RDATDLY_1BIT,
MCBSP_RCR_RFRLEN1_OF(0),
MCBSP_RCR_RWDLEN1_32BIT),
MCBSP_XCR_RMK(MCBSP_XCR_XPHASE_SINGLE,
MCBSP_XCR_XFRLEN2_OF(63),
MCBSP_XCR_XWDLEN2_32BIT,
MCBSP_XCR_XCOMPAND_MSB,
MCBSP_XCR_XFIG_YES,
MCBSP_XCR_XDATDLY_1BIT,
MCBSP_XCR_XFRLEN1_OF(0),
MCBSP_XCR_XWDLEN1_32BIT),
MCBSP_SRGR_RMK(MCBSP_SRGR_GSYNC_DEFAULT,
MCBSP_SRGR_CLKSP_DEFAULT,
MCBSP_SRGR_CLKSM_DEFAULT,
MCBSP_SRGR_FSGM_FSG,
MCBSP_SRGR_FPER_OF(31),
MCBSP_SRGR_FWID_OF(0),
MCBSP_SRGR_CLKGDV_OF(7)),
MCBSP_MCR_DEFAULT,
MCBSP_RCER_DEFAULT,
MCBSP_XCER_DEFAULT,
MCBSP_PCR_RMK(MCBSP_PCR_XIOEN_SP,
MCBSP_PCR_RIOEN_SP,
MCBSP_PCR_FSXM_INTERNAL,
MCBSP_PCR_FSRM_EXTERNAL,
MCBSP_PCR_CLKXM_OUTPUT,
MCBSP_PCR_CLKRM_INPUT,
MCBSP_PCR_CLKSSTAT_DEFAULT,
MCBSP_PCR_DXSTAT_DEFAULT,
MCBSP_PCR_FSXP_DEFAULT,
MCBSP_PCR_FSRP_DEFAULT,
MCBSP_PCR_CLKXP_DEFAULT,
MCBSP_PCR_CLKRP_DEFAULT)
};

hMcbsp0 = MCBSP_open(MCBSP_DEV0, MCBSP_OPEN_RESET);
MCBSP_config(hMcbsp0, &mcbspCfg0);
for(wait=0; wait<10; wait++);
}

void init_dma0(void)
{
hDma0 = DMA_open(DMA_CHA0, DMA_OPEN_RESET); /* Handle to DMA channel 0 */
DMA_configArgs(hDma0,
DMA_PRICTL_RMK(DMA_PRICTL_DSTRLD_DEFAULT,
DMA_PRICTL_SRCRLD_DEFAULT,
DMA_PRICTL_EMOD_DEFAULT,
DMA_PRICTL_FS_DEFAULT,
DMA_PRICTL_TCINT_ENABLE, /* TCINT =1 */
DMA_PRICTL_PRI_DMA, /* DMA high priority */
DMA_PRICTL_WSYNC_XEVT0, /* Set synch event */
DMA_PRICTL_RSYNC_DEFAULT,
DMA_PRICTL_INDEX_DEFAULT,
DMA_PRICTL_CNTRLD_DEFAULT,
DMA_PRICTL_SPLIT_DEFAULT,
DMA_PRICTL_ESIZE_32BIT, /* Element size */
DMA_PRICTL_DSTDIR_DEFAULT,
DMA_PRICTL_SRCDIR_INC, /* Incr by element size */
DMA_PRICTL_START_DEFAULT),
DMA_SECCTL_RMK(//DMA_SECCTL_WSPOL_DEFAULT,
//DMA_SECCTL_RSPOL_DEFAULT,
//DMA_SECCTL_FSIG_DEFAULT,
DMA_SECCTL_DMACEN_DEFAULT,
DMA_SECCTL_WSYNCCLR_DEFAULT,
DMA_SECCTL_WSYNCSTAT_DEFAULT,
DMA_SECCTL_RSYNCCLR_DEFAULT,
DMA_SECCTL_RSYNCSTAT_DEFAULT,
DMA_SECCTL_WDROPIE_DEFAULT,
DMA_SECCTL_WDROPCOND_DEFAULT,
DMA_SECCTL_RDROPIE_DEFAULT,
DMA_SECCTL_RDROPCOND_DEFAULT,
DMA_SECCTL_BLOCKIE_ENABLE, /* Enables DMA intr */
DMA_SECCTL_BLOCKCOND_DEFAULT,
DMA_SECCTL_LASTIE_DEFAULT,
DMA_SECCTL_LASTCOND_DEFAULT,
DMA_SECCTL_FRAMEIE_DEFAULT,
DMA_SECCTL_FRAMECOND_DEFAULT,
DMA_SECCTL_SXIE_DEFAULT,
DMA_SECCTL_SXCOND_DEFAULT),
DMA_SRC_RMK((Uint32)dmaOutbuff), /* Set source to dmaOutbuff */
DMA_DST_RMK(MCBSP_ADDRH(hMcbsp0, DXR)), /* Set dest to DXR */
DMA_XFRCNT_RMK(DMA_XFRCNT_FRMCNT_DEFAULT,
DMA_XFRCNT_ELECNT_OF(BUFFER_SIZE)));
}

void init_dma1(void)
{
hDma1 = DMA_open(DMA_CHA1, DMA_OPEN_RESET); /* Handle to DMA channel 1 */
DMA_configArgs(hDma1,
DMA_PRICTL_RMK(DMA_PRICTL_DSTRLD_DEFAULT,
DMA_PRICTL_SRCRLD_DEFAULT,
DMA_PRICTL_EMOD_DEFAULT,
DMA_PRICTL_FS_DEFAULT,
DMA_PRICTL_TCINT_ENABLE, /* TCINT =1 */
DMA_PRICTL_PRI_DMA, /* DMA high priority */
DMA_PRICTL_WSYNC_DEFAULT,
DMA_PRICTL_RSYNC_REVT0, /* Set sync event */
DMA_PRICTL_INDEX_DEFAULT,
DMA_PRICTL_CNTRLD_DEFAULT,
DMA_PRICTL_SPLIT_DEFAULT,
DMA_PRICTL_ESIZE_32BIT, /* Element size */
DMA_PRICTL_DSTDIR_INC, /* Incr dest by element
*/
DMA_PRICTL_SRCDIR_DEFAULT,
DMA_PRICTL_START_DEFAULT),
DMA_SECCTL_RMK(//DMA_SECCTL_WSPOL_DEFAULT,
//DMA_SECCTL_RSPOL_DEFAULT,
//DMA_SECCTL_FSIG_DEFAULT,
DMA_SECCTL_DMACEN_DEFAULT,
DMA_SECCTL_WSYNCCLR_DEFAULT,
DMA_SECCTL_WSYNCSTAT_DEFAULT,
DMA_SECCTL_RSYNCCLR_DEFAULT,
DMA_SECCTL_RSYNCSTAT_DEFAULT,
DMA_SECCTL_WDROPIE_DEFAULT,
DMA_SECCTL_WDROPCOND_DEFAULT,
DMA_SECCTL_RDROPIE_DEFAULT,
DMA_SECCTL_RDROPCOND_DEFAULT,
DMA_SECCTL_BLOCKIE_ENABLE, /* Enables DMA intr */
DMA_SECCTL_BLOCKCOND_DEFAULT,
DMA_SECCTL_LASTIE_DEFAULT,
DMA_SECCTL_LASTCOND_DEFAULT,
DMA_SECCTL_FRAMEIE_DEFAULT,
DMA_SECCTL_FRAMECOND_DEFAULT,
DMA_SECCTL_SXIE_DEFAULT,
DMA_SECCTL_SXCOND_DEFAULT),
DMA_SRC_RMK(MCBSP_ADDRH(hMcbsp0, DRR)), /* Set source to DRR */
DMA_DST_RMK((Uint32)dmaInbuff), /* Set dest to dmaInbuff */
DMA_XFRCNT_RMK(DMA_XFRCNT_FRMCNT_DEFAULT,
DMA_XFRCNT_ELECNT_OF(BUFFER_SIZE)));
}

void set_interrupts(void)
{
IRQ_map(IRQ_EVT_DMAINT0, 8);
IRQ_enable(IRQ_EVT_DMAINT0);
IRQ_map(IRQ_EVT_DMAINT1, 9);
IRQ_enable(IRQ_EVT_DMAINT1);

IRQ_nmiEnable();
IRQ_globalEnable();
}

interrupt void nmiIsr(void)
{}

interrupt void int4Isr(void)
{}

interrupt void int5Isr(void)
{}

interrupt void int6Isr(void)
{}

interrupt void int7Isr(void)
{}

interrupt void int8Isr(void)
{
xmit0_done = 1;
}

interrupt void int9Isr(void)
{
recv0_done = 1;
}

interrupt void int10Isr(void)
{}

interrupt void int11Isr(void)
{}

interrupt void int12Isr(void)
{}

interrupt void int13Isr(void)
{}

interrupt void int14Isr(void)
{}

interrupt void int15Isr(void)
{}
// end of main function file mcbsp_dsp.c

// the interrupt service table file vectors.asm

.ref _c_int00
.ref _nmiIsr
.ref _int4Isr
.ref _int5Isr
.ref _int6Isr
.ref _int7Isr
.ref _int8Isr
.ref _int9Isr
.ref _int10Isr
.ref _int11Isr
.ref _int12Isr
.ref _int13Isr
.ref _int14Isr
.ref _int15Isr ; Macro Definition
; For unused entries in Int Vector Table

unused .macro id
.global unused:id:
unused:id:
b unused:id:
nop
nop
nop
nop
nop
nop
nop
.endm ; Interrupt Vector Table

.sect "vectors" ; Define Memory Section

_RESET: mvkl _c_int00, b0 ; Reset Vector
mvkh _c_int00, b0
b b0
nop
nop
nop
nop
nop

_NMI: mvkl _nmiIsr, b0 ; NMI Service Function
mvkh _nmiIsr, b0
b b0
nop
nop
nop
nop
nop

_RESV1: unused RESV1
_RESV2: unused RESV2

_INT4: mvkl _int4Isr, b0 ; INT4 Service Function
mvkh _int4Isr, b0
b b0
nop
nop
nop
nop
nop

_INT5: mvkl _int5Isr, b0 ; INT5 Service Function
mvkh _int5Isr, b0
b b0
nop
nop
nop
nop
nop

_INT6: mvkl _int6Isr, b0 ; INT6 Service Function
mvkh _int6Isr, b0
b b0
nop
nop
nop
nop
nop

_INT7: mvkl _int7Isr, b0 ; INT7 Service Function
mvkh _int7Isr, b0
b b0
nop
nop
nop
nop
nop

_INT8: mvkl _int8Isr, b0 ; INT8 Service Function
mvkh _int8Isr, b0
b b0
nop
nop
nop
nop
nop

_INT9: mvkl _int9Isr, b0 ; INT9 Service Function
mvkh _int9Isr, b0
b b0
nop
nop
nop
nop
nop

_INT10: mvkl _int10Isr, b0 ; INT10 Service Function
mvkh _int10Isr, b0
b b0
nop
nop
nop
nop
nop

_INT11: mvkl _int11Isr, b0 ; INT11 Service Function
mvkh _int11Isr, b0
b b0
nop
nop
nop
nop
nop

_INT12: mvkl _int12Isr, b0 ; INT12 Service Function
mvkh _int12Isr, b0
b b0
nop
nop
nop
nop
nop

_INT13: mvkl _int13Isr, b0 ; INT13 Service Function
mvkh _int13Isr, b0
b b0
nop
nop
nop
nop
nop

_INT14: mvkl _int14Isr, b0 ; INT14 Service Function
mvkh _int14Isr, b0
b b0
nop
nop
nop
nop
nop

_INT15: mvkl _int15Isr, b0 ; INT15 Service Function
mvkh _int15Isr, b0
b b0
nop
nop
nop
nop
nop

.end
// end of the interrupt service table file vectors.asm

// the command file 4290.cmd
MEMORY
{
IDRAM0 (RWI) : org = 0x80000000, len = 0x00008000
IDRAM1 (RWI) : org = 0x80008000, len = 0x00008000
IPRAM (RWIX) : org = 0x01400000, len = 0x00010000
GRAM (RWIX) : org = 0x0000c400, len = 0x001f3bff
SDRAM (RWIX) : org = 0x02020800, len = 0x00FaF800
SBSRAM0 (RWIX): org = 0x03000000, len = 0x00000200
SBSRAM (RWIX) : org = 0x03000200, len = 0x0007FE00
}
SECTIONS
{
vectors : > SBSRAM0
.buffer0 : > IDRAM0
.buffer1 : > IDRAM1
.buffer2 : > SDRAM
.globaldata : > IDRAM0
.stack : > IDRAM1
.text : > SBSRAM
.ptext : > SBSRAM
.cinit : > SBSRAM
.const : > SBSRAM
.switch : > SBSRAM
.data : > SBSRAM
.bss : > SBSRAM
.cio : > SBSRAM
.sysmem : > SBSRAM
.far : > SBSRAM
.xref : > SBSRAM
}
// end of command file 4290.cmd
Wang Tao

--

Reply by ●June 28, 20022002-06-28
Greetings all,

I've been trying to use the PCM3003 daughtercard (a.k.a. TMDX326040A) with the
6711DSK, but have bumped into a problem here. Maybe you folks could provide me
with an insight.

I'm trying to receive/transmit data from/to the PCM3003 daughter card via
McBSP1 with the transmission/reception triggered by an external interrupt,
coming from the daughtercard. I've tried a sample "loopback" code (by Michael
Morris, posted on the TI site), but I seem to have a different daughterboard
than the one specified there (the jumper definitions don't match his).

Is anyone in the group using such daughtercard with McBSP1/EDMA/non-polling? If
so, is there a simple example program that you could send (or reply with the
link) us here?

Thank you in advance for your help,

BrunoK