DSP学习心得笔记(更新2)

（按照中断向量的顺序）

初始化该名字为

PIE _VECT_TABLE

的表：

typedef interrupt void(*PINT)(void);

这里有些一问，一下应该为函数名？？

// Define Vector Table:

struct PIE_VECT_TABLE {

// Reset is never fetched from this table.

// It will always be fetched from 0x3FFFC0 in either

// boot ROM or XINTF Zone 7 depending on the state of

// the XMP/MC input signal.

On the F2810 it is always

// fetched from boot ROM.

PINT

PIE1_RESERVED;

PINT

PIE2_RESERVED;

PINT

PIE3_RESERVED;

PINT

PIE4_RESERVED;

PINT

PIE5_RESERVED;

PINT

PIE6_RESERVED;

PINT

PIE7_RESERVED;

PINT

PIE8_RESERVED;

PINT

PIE9_RESERVED;

PINT

PIE10_RESERVED;

PINT

PIE11_RESERVED;

PINT

PIE12_RESERVED;

PINT

PIE13_RESERVED;

// Non-Peripheral Interrupts:

PINT

XINT13;

// XINT13

PINT

TINT2;

// CPU-Timer2

PINT

DATALOG;

// Datalogging interrupt

PINT

RTOSINT;

// RTOS interrupt

PINT

EMUINT;

// Emulation interrupt

PINT

XNMI;

// Non-maskable interrupt

PINT

ILLEGAL;

// Illegal operation TRAP

PINT

USER0;

// User Defined trap 0

PINT

USER1;

// User Defined trap 1

PINT

USER2;

// User Defined trap 2

PINT

USER3;

// User Defined trap 3

PINT

USER4;

// User Defined trap 4

PINT

USER5;

// User Defined trap 5

PINT

USER6;

// User Defined trap 6

PINT

USER7;

// User Defined trap 7

PINT

USER8;

// User Defined trap 8

PINT

USER9;

// User Defined trap 9

PINT

USER10;

// User Defined trap 10

PINT

USER11;

// User Defined trap 11

// Group 1 PIE Peripheral Vectors:

PINT

PDPINTA;

// EV-A

PINT

PDPINTB;

// EV-B

PINT

rsvd1_3;

PINT

XINT1;

PINT

XINT2;

PINT

ADCINT;

// ADC

PINT

TINT0;

// Timer 0

PINT

WAKEINT;

// WD

.............

.............

// Group 12 PIE Peripheral Vectors:

PINT

rsvd12_1;

PINT

rsvd12_2;

PINT

rsvd12_3;

PINT

rsvd12_4;

PINT

rsvd12_5;

PINT

rsvd12_6;

PINT

rsvd12_7;

PINT

rsvd12_8;

};

然后在使我们在

.cmd

文件中定义的表有以上属性：

extern struct PIE_VECT_TABLE PieVectTable;(

在

.h

文件中）

4 .

初始化该表（在

.c

文件中）使之能 够为主程序所使用：

const struct PIE_VECT_TABLE PieVectTableInit = {

PIE_RESERVED,

// Reserved space

PIE_RESERVED,

PIE_RESERVED,

PIE_RESERVED,

PIE_RESERVED,

PIE_RESERVED,

PIE_RESERVED,

PIE_RESERVED,

PIE_RESERVED,

PIE_RESERVED,

PIE_RESERVED,

PIE_RESERVED,

PIE_RESERVED,

// Non-Peripheral Interrupts

INT13_ISR,

// XINT13 or CPU-Timer 1

INT14_ISR,

// CPU-Timer2

DATALOG_ISR,

// Datalogging interrupt

RTOSINT_ISR,

// RTOS interrupt

EMUINT_ISR,

// Emulation interrupt

NMI_ISR,

// Non-maskable interrupt

ILLEGAL_ISR,

// Illegal operation TRAP

USER0_ISR,

// User Defined trap 0

USER1_ISR,

// User Defined trap 1

USER2_ISR,

// User Defined trap 2

USER3_ISR,

// User Defined trap 3

USER4_ISR,

// User Defined trap 4

USER5_ISR,

// User Defined trap 5

USER6_ISR,

// User Defined trap 6

USER7_ISR,

// User Defined trap 7

USER8_ISR,

// User Defined trap 8

USER9_ISR,

// User Defined trap 9

USER10_ISR,

// User Defined trap 10

USER11_ISR,

// User Defined trap 11

// Group 1 PIE Vectors

PDPINTA_ISR,

// EV-A

PDPINTB_ISR,

// EV-B

rsvd_ISR,

XINT1_ISR,

XINT2_ISR,

ADCINT_ISR,

// ADC

TINT0_ISR,

// Timer 0

WAKEINT_ISR,

// WD

.............

.............

// Group 12 E Vectors

rsvd_ISR,

rsvd_ISR,

rsvd_ISR,

rsvd_ISR,

rsvd_ISR,

rsvd_ISR,

rsvd_ISR,

rsvd_ISR,

};

//----------- -------------------------------------------------- --------------

// InitPieVectTable:

//------------------------- --------------------------------------------------

// This function initializes the PIE vector table to a known state.

// This function must be executed after boot time.

//

void InitPieVectTable(void)

{

int16 i;

Uint32 *Source = (void *) &PieVectTableInit;

Uint32 *Dest = (void *) &PieVectTable;

EALLOW;

for(i=0; i < 128; i++)

*Dest++ = *Source++;

EDIS;

// Enable the PIE Vector Table

= 1;

}

5.

中断服务程序：

让以上的数值指向你所要的服务程序，例如：

2 = &ISRTimer2;

那么，

ISRTimer2

也就成了中断服务程序，

×××切记：一定要在主程序的开始先声明该程序：

interrupt void ISRTimer2(void);

.............

.............

然后按照您的需要编制该程序：

interrupt void ISRTimer2(void)

{

uptCount++;

}