mcbsp中断rint 和xint中断进不去？？谢谢
#include <stdio.h>
#include <csl.h>
#include <csl_mcbsp.h>
#include <DEC6713.h>
extern far void vectors();
//---------Global constants---------
#define N 10
/* create a config structure for digital loopback mode */
static MCBSP_Config ConfigLoopback = {
/* Serial Port Control Register (SPCR) */
MCBSP_SPCR_RMK(
MCBSP_SPCR_FREE_YES,
MCBSP_SPCR_SOFT_YES,
MCBSP_SPCR_FRST_YES,
MCBSP_SPCR_GRST_YES,
MCBSP_SPCR_XINTM_XRDY ,
MCBSP_SPCR_XSYNCERR_NO ,
MCBSP_SPCR_XRST_NO,
MCBSP_SPCR_DLB_ON,
MCBSP_SPCR_RJUST_RZF,
MCBSP_SPCR_CLKSTP_DISABLE,
MCBSP_SPCR_DXENA_OFF,
MCBSP_SPCR_RINTM_RRDY,
MCBSP_SPCR_RSYNCERR_NO,
MCBSP_SPCR_RRST_NO
),
/* Receive Control Register (RCR) */
MCBSP_RCR_RMK(
MCBSP_RCR_RPHASE_SINGLE,
MCBSP_RCR_RFRLEN2_OF(0),
MCBSP_RCR_RWDLEN2_8BIT,
MCBSP_RCR_RCOMPAND_MSB,
MCBSP_RCR_RFIG_YES,
MCBSP_RCR_RDATDLY_0BIT,
MCBSP_RCR_RFRLEN1_OF(0),
MCBSP_RCR_RWDLEN1_32BIT,
MCBSP_RCR_RWDREVRS_DISABLE
),
/* Transmit Control Register (XCR) */
MCBSP_XCR_RMK(
MCBSP_XCR_XPHASE_SINGLE,
MCBSP_XCR_XFRLEN2_OF(0),
MCBSP_XCR_XWDLEN2_8BIT,
MCBSP_XCR_XCOMPAND_MSB,
MCBSP_XCR_XFIG_YES,
MCBSP_XCR_XDATDLY_0BIT,
MCBSP_XCR_XFRLEN1_OF(0),
MCBSP_XCR_XWDLEN1_32BIT,
MCBSP_XCR_XWDREVRS_DISABLE
),
/*serial port sample rate generator register(SRGR) */
MCBSP_SRGR_RMK(
MCBSP_SRGR_GSYNC_FREE,
MCBSP_SRGR_CLKSP_RISING,
MCBSP_SRGR_CLKSM_INTERNAL,
MCBSP_SRGR_FSGM_DXR2XSR,
MCBSP_SRGR_FPER_OF(63),
),
MCBSP_MCR_DEFAULT, /* Using default value of MCR register */
MCBSP_RCER_DEFAULT,/* Using default value of RCER register */
MCBSP_XCER_DEFAULT,/* Using default value of XCER register */
/* serial port pin control register(PCR) */
MCBSP_PCR_RMK(
MCBSP_PCR_XIOEN_SP, /* Transmitter in general-purpose I/O mode - only when
XRST = 0 in SPCR - (XIOEN)
MCBSP_PCR_XIOEN_SP - CLKS pin is not a general
purpose input. DX pin is not a general purpose
output.FSX and CLKX are not general-purpose I/Os.
MCBSP_PCR_XIOEN_GPIO - CLKS pin is a general-purpose
input. DX pin is a general-purpose output.
FSX and CLKX are general-purpose I/Os. These
serial port pins do not perform serial port
operation. */
MCBSP_PCR_RIOEN_SP, /* Receiver in general-purpose I/O mode - only when
RRST = 0 in SPCR -(RIOEN)
MCBSP_PCR_RIOEN_SP - DR and CLKS pins are not
general-purpose inputs. FSR and CLKR are not
general-purpose I/Os and perform serial port
operation.
MCBSP_PCR_RIOEN_GPIO - DR and CLKS pins are
general-purpose inputs. FSR and CLKR are
general-purpose I/Os. These serial port pins do
not perform serial port operation. */
MCBSP_PCR_FSXM_INTERNAL, /* Transmit frame synchronization mode(FSXM)
MCBSP_PCR_FSXM_EXTERNAL - Frame synchronization
signal is provided by an external source. FSX
is an input pin.
MCBSP_PCR_FSXM_INTERNAL - Frame synchronization
generation is determined by the sample rate
generator frame synchronization mode bit FSGM
in the SRGR. */
MCBSP_PCR_FSRM_EXTERNAL, /* Receive frame synchronization mode (FSRM)
MCBSP_PCR_FSRM_EXTERNAL - Frame synchronization
signals are generated by an external device.
FSR is an input pin.
MCBSP_PCR_FSRM_INTERNAL - Frame synchronization
signals are generated internally by the sample
rate generator. FSR is an output pin except
when GSYNC = 1 in SRGR. */
MCBSP_PCR_CLKXM_OUTPUT, /* Transmitter clock mode (CLKXM)
MCBSP_PCR_CLKXM_INPUT - Transmitter clock is
driven by an external clock with CLKX as an
input pin.
MCBSP_PCR_CLKXM_OUTPUT - CLKX is an output pin
and is driven by the internal sample rate
generator.
During SPI mode :
MCBSP_PCR_CLKXM_INPUT - McBSP is a slave and
(CLKX) is driven by the SPI master in the
system. CLKR is internally driven by CLKX.
MCBSP_PCR_CLKXM_OUTPUT - McBSP is a master and
generates the transmitter clock (CLKX) to
drive its receiver clock (CLKR) and the shift
clock of the SPI-compliant slaves in the
system. */
MCBSP_PCR_CLKRM_INPUT, /* Receiver clock mode (CLKRM)
Case 1: Digital loopback mode not set in SPCR
MCBSP_PCR_CLKRM_INPUT - Receive clock (CLKR) is
an input driven by an external clock.
MCBSP_PCR_CLKRM_OUTPUT - CLKR is an output pin
and is driven by the sample rate generator.
Case 2: Digital loopback mode set in SPCR
MCBSP_PCR_CLKRM_INPUT - Receive clock is driven
by the transmit clock (CLKX), which is based
on the CLKXM bit in PCR. CLKR is in high
impedance.
MCBSP_PCR_CLKRM_INPUT - CLKR is an output pin and
is driven by the transmit clock. The transmit
clock is derived from CLKXM bit in the PCR.*/
MCBSP_PCR_CLKSSTAT_0, /* CLKS pin status(CLKSSTAT)
MCBSP_PCR_CLKSSTAT_0
MCBSP_PCR_CLKSSTAT_1 */
MCBSP_PCR_DXSTAT_0, /* DX pin status(DXSTAT)
MCBSP_PCR_DXSTAT_0
MCBSP_PCR_DXSTAT_1 */
MCBSP_PCR_FSXP_ACTIVEHIGH, /* Transmit frame synchronization polarity(FSXP)
MCBSP_PCR_FSXP_ACTIVEHIGH - Frame synchronization
pulse FSX is active high
MCBSP_PCR_FSXP_ACTIVELOW - Frame synchronization
pulse FSX is active low */
MCBSP_PCR_FSRP_ACTIVEHIGH, /* Receive frame synchronization polarity(FSRP)
MCBSP_PCR_FSRP_ACTIVEHIGH - Frame synchronization
pulse FSR is active high
MCBSP_PCR_FSRP_ACTIVELOW - Frame synchronization
pulse FSR is active low */
MCBSP_PCR_CLKXP_RISING, /* Transmit clock polarity(CLKXP)
MCBSP_PCR_CLKXP_RISING - Transmit data driven on
rising edge of CLKX
MCBSP_PCR_CLKXP_FALLING - Transmit data driven on
falling edge of CLKX */
MCBSP_PCR_CLKRP_FALLING /* Receive clock polarity(CLKRP)
MCBSP_PCR_CLKRP_FALLING - Receive data sampled on
falling edge of CLKR
MCBSP_PCR_CLKRP_RISING - Receive data sampled on
rising edge of CLKR */
)
};
static Uint32 rcvEventId, xmtEventId;
//Uint16 rcvEventID, xmtEventID;
Uint32 xmt[N],rcv[N];
volatile Uint16 XfrCnt = 0;
Uint16 err = 0;
Uint16 old_intm;
MCBSP_Handle hMcbsp;
Uint16 i;
void taskFxn(void);
/* ---------------------------------------------------------------------------*/
//---------main routine---------
void main(void)
{
Uint16 i;
/* Initialize CSL library - This is REQUIRED !!! */
CSL_init();
/* Set IVPD/IVPH to start of interrupt vector location */
// IRQ_setVecs((Uint32)(&VECSTART));
for (i = 0; i <= N - 1; i++) {
xmt = i;
rcv = 0;
}
/* Call function to effect transfer */
taskFxn();
}
void taskFxn(void)
{
Uint16 i;
old_intm = IRQ_globalDisable();
/* Let's open up serial port 1 */
hMcbsp = MCBSP_open(MCBSP_DEV1, MCBSP_OPEN_RESET);
/* Get EventId's associated with MCBSP Port 0 receive and transmit */
/* The event Id's are used to communicate with the CSL interrupt */
/* module functions. */
rcvEventId = MCBSP_getRcvEventId(hMcbsp);
xmtEventId = MCBSP_getXmtEventId(hMcbsp);
IRQ_setVecs(vectors); /* point to the IRQ vector table */
/* Clear any pending receive or transmit interrupts */
IRQ_clear(rcvEventId);
IRQ_clear(xmtEventId);
/* Place address of interrupt service routines at */
/* associated vector location */
//IRQ_plug(rcvEventId, &readIsr);
//IRQ_plug(xmtEventId, &writeIsr);
/* Map timer events to physical interrupt number */
IRQ_map(rcvEventId, 14);
IRQ_map(xmtEventId, 15);
/* We'll set it up for digital loopback, 32bit mode. We have */
/* to setup the sample rate generator to allow self clocking. */
MCBSP_config(hMcbsp,&ConfigLoopback);
/* Enable the MCBSP receive and transmit interrupts */
IRQ_enable(rcvEventId);
IRQ_enable(xmtEventId);
/* Now that the port is setup, let's enable it in steps. */
MCBSP_start(hMcbsp,MCBSP_RCV_START | MCBSP_XMIT_START |
MCBSP_SRGR_START| MCBSP_SRGR_FRAMESYNC,
MCBSP_SRGR_DEFAULT_DELAY);
/* Prime MCBSP transmit */
while(!MCBSP_xrdy(hMcbsp)){
;
}
MCBSP_write(hMcbsp,xmt[3]);
// while(!MCBSP_rrdy(hMcbsp)){ ; }
// x = MCBSP_read(hMcbsp);XfrCnt
/* Enable all masked interrupts */
IRQ_globalEnable();
/* Wait for transfer of data */
while (XfrCnt < 10) {
;
}
/*------------------------------------------*\
* Compare values
\*------------------------------------------*/
for(i = 0; i <= N - 1; i++){
if (rcv != xmt){
++err;
break;
}
}
printf ("%s\n",err?"TEST FAILED" : "TEST PASSED");
/* Restore old value of INTM */
IRQ_globalRestore(old_intm);
/* We're done with MCBSP, so close it */
MCBSP_close(hMcbsp);
}
/************************************************************************\
name: Interrupt Service Routine c_int14
purpose: ISR to service TIMERINT1.
vecs.asm must be modified to include
c_int14 entry.
inputs: n/a
returns: n/a
\************************************************************************/
interrupt void c_int15(void)
{
/*
* Disable this ISR's interrupt before the write to the McBSP
* since another interrupt will be generated as soon as the write
* completes, which happens very quickly due to the loopback to
* the McBSP receive.
*/
IRQ_disable(xmtEventId);
MCBSP_write(hMcbsp,xmt[XfrCnt]);
}
interrupt void c_int14(void)
{
rcv[XfrCnt] = MCBSP_read32(hMcbsp);
++XfrCnt;
if (XfrCnt == N) {
IRQ_disable(rcvEventID);
IRQ_disable(xmtEventID);
MCBSP_reset(hMcbsp);
}
else {
IRQ_enable(xmtEventID);
}
}
/******************************************************************************\
* End of DEC6713_TIMER.c
\******************************************************************************/
这个我编写的TI 合纵达6713 的 MCBSP中断测试程序， int_14为mcbsp中断读操作 int_15为中断写操作
程序最后停在while (XfrCnt < 10) {
;
} 处；
就是不进中断；
中断标志位 MCBSP_rrdy(hMcbsp) MCBSP_xrdy(hMcbsp)
均改变了，就是进不去啊
请大家帮忙看看 谢谢！！
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