TI中文支持网本人刚开始学习TMS320F28335开发板，使用音频模块的时候有如下两个问题，还请前辈们解答：
1、使用lab7例程时，为什么停止仿真之后为什么语音录放不暂停？
2、当我把中断函数里的代码屏蔽之后还可以正常录放音，难道录放音的实现与中断没有关系？
#include "DSP2833x_Device.h"// DSP2833x Headerfile Include File
#include "DSP2833x_Examples.h"// DSP2833x Examples Include File
Uint16 volume,tAicRegs;
int ADbuf[500];
int DA_wptr,DA_rptr,y;
Uint16 play_mode=1;
void main(void)
{
Uint16 temp,i;
// Step 1. Initialize System Control:
// PLL, WatchDog, enable Peripheral Clocks
// This example function is found in the DSP2833x_SysCtrl.c file. InitSysCtrl();
// Step 2. Initalize GPIO:
// This example function is found in the DSP2833x_Gpio.c file and
// illustrates how to set the GPIO to it's default state.
// InitGpio(); // Skipped for this example
// For this example, only enable the GPIO for McBSP-A
InitXintf16Gpio(); InitMcbspaGpio();
EALLOW;GpioCtrlRegs.GPAMUX1.bit.GPIO12 = 0; //aic_dat 0为数字IO模式，1为外设IO模式GpioCtrlRegs.GPADIR.bit.GPIO12 = 1; //0为输入方向，1为输出方向GpioCtrlRegs.GPAPUD.bit.GPIO12 = 0; //使能内部上拉电阻GpioCtrlRegs.GPAMUX1.bit.GPIO13 = 0; //aic_CSGpioCtrlRegs.GPADIR.bit.GPIO13 = 1;GpioCtrlRegs.GPAPUD.bit.GPIO13 = 0;GpioCtrlRegs.GPBMUX2.bit.GPIO61 = 0; //aic_clkGpioCtrlRegs.GPBDIR.bit.GPIO61 = 1;GpioCtrlRegs.GPBPUD.bit.GPIO61 = 0;EDIS;
// Step 3. Clear all interrupts and initialize PIE vector table:
// Disable CPU interrupts DINT;
// Initialize PIE control registers to their default state.
// The default state is all PIE interrupts disabled and flags
// are cleared.
// This function is found in the DSP2833x_PieCtrl.c file. InitPieCtrl(); //IER\IFR寄存器清零
// Disable CPU interrupts and clear all CPU interrupt flags: IER = 0x0000; IFR = 0x0000;
// Initialize the PIE vector table with pointers to the shell Interrupt
// Service Routines (ISR).
// This will populate the entire table, even if the interrupt
// is not used in this example. This is useful for debug purposes.
// The shell ISR routines are found in DSP2833x_DefaultIsr.c.
// This function is found in DSP2833x_PieVect.c. InitPieVectTable(); //**初始化向量表（为PIE向量表中的所有中断向量配置对应向量的入口地址）
// Step 4. Initialize all the Device Peripherals:
// This function is found in DSP2833x_InitPeripherals.c
// InitPeripherals();// Not required for this example InitMcbspa();// Initalize the Mcbsp-A in loopback test mode
// tAicRegs = 0xFF;
// SysReg = tAicRegs;
InitAic23(); //aic23配置(单步调试声音变大)
delay(500);volume=90;WriteAic23(L_HEADPHONE_VOLUME,0x0180+volume);//改变音量
EALLOW; // This is needed to write to EALLOW protected registers
PieVectTable.MRINTA = &ISRMcbspSend; //把函数的地址赋值给中断向量MRINTA的向量地址中
EDIS;// This is needed to disable write to EALLOW protected registersPieCtrlRegs.PIECTRL.bit.ENPIE = 1;// Enable the PIE blockPieCtrlRegs.PIEIER6.bit.INTx5=1;// Enable PIE Group 6, INT 5IER |= M_INT6;// Enable CPU INT6
EINT;// Enable Global interrupt INTM
while(1)
{ for(temp=30000;temp>0;temp-=100)
{ for(i=0;i<2;i++) { y=5000; delay(temp); //播放警报// McbspaRegs.DXR1.all = y; y=-5000; delay(temp); //播放警报// McbspaRegs.DXR1.all = y; }
}
}
}
interrupt void ISRMcbspSend(void)
{
//int temp;
//
//PieCtrlRegs.PIEACK.all = PIEACK_GROUP6;
//temp=McbspaRegs.DRR1.all;
//
//DA_rptr++;
//if(DA_rptr>=500)
//DA_rptr=0;
//
//ADbuf[DA_rptr]=temp;//保存录音数据
//
//if(play_mode==0)
//McbspaRegs.DXR1.all = y;
////警报声的幅值
//else
//McbspaRegs.DXR1.all = temp;//放音
}
ian：已解决
本人刚开始学习TMS320F28335开发板，使用音频模块的时候有如下两个问题，还请前辈们解答：
1、使用lab7例程时，为什么停止仿真之后为什么语音录放不暂停？
2、当我把中断函数里的代码屏蔽之后还可以正常录放音，难道录放音的实现与中断没有关系？
#include "DSP2833x_Device.h"// DSP2833x Headerfile Include File
#include "DSP2833x_Examples.h"// DSP2833x Examples Include File
Uint16 volume,tAicRegs;
int ADbuf[500];
int DA_wptr,DA_rptr,y;
Uint16 play_mode=1;
void main(void)
{
Uint16 temp,i;
// Step 1. Initialize System Control:
// PLL, WatchDog, enable Peripheral Clocks
// This example function is found in the DSP2833x_SysCtrl.c file. InitSysCtrl();
// Step 2. Initalize GPIO:
// This example function is found in the DSP2833x_Gpio.c file and
// illustrates how to set the GPIO to it's default state.
// InitGpio(); // Skipped for this example
// For this example, only enable the GPIO for McBSP-A
InitXintf16Gpio(); InitMcbspaGpio();
EALLOW;GpioCtrlRegs.GPAMUX1.bit.GPIO12 = 0; //aic_dat 0为数字IO模式，1为外设IO模式GpioCtrlRegs.GPADIR.bit.GPIO12 = 1; //0为输入方向，1为输出方向GpioCtrlRegs.GPAPUD.bit.GPIO12 = 0; //使能内部上拉电阻GpioCtrlRegs.GPAMUX1.bit.GPIO13 = 0; //aic_CSGpioCtrlRegs.GPADIR.bit.GPIO13 = 1;GpioCtrlRegs.GPAPUD.bit.GPIO13 = 0;GpioCtrlRegs.GPBMUX2.bit.GPIO61 = 0; //aic_clkGpioCtrlRegs.GPBDIR.bit.GPIO61 = 1;GpioCtrlRegs.GPBPUD.bit.GPIO61 = 0;EDIS;
// Step 3. Clear all interrupts and initialize PIE vector table:
// Disable CPU interrupts DINT;
// Initialize PIE control registers to their default state.
// The default state is all PIE interrupts disabled and flags
// are cleared.
// This function is found in the DSP2833x_PieCtrl.c file. InitPieCtrl(); //IER\IFR寄存器清零
// Disable CPU interrupts and clear all CPU interrupt flags: IER = 0x0000; IFR = 0x0000;
// Initialize the PIE vector table with pointers to the shell Interrupt
// Service Routines (ISR).
// This will populate the entire table, even if the interrupt
// is not used in this example. This is useful for debug purposes.
// The shell ISR routines are found in DSP2833x_DefaultIsr.c.
// This function is found in DSP2833x_PieVect.c. InitPieVectTable(); //**初始化向量表（为PIE向量表中的所有中断向量配置对应向量的入口地址）
// Step 4. Initialize all the Device Peripherals:
// This function is found in DSP2833x_InitPeripherals.c
// InitPeripherals();// Not required for this example InitMcbspa();// Initalize the Mcbsp-A in loopback test mode
// tAicRegs = 0xFF;
// SysReg = tAicRegs;
InitAic23(); //aic23配置(单步调试声音变大)
delay(500);volume=90;WriteAic23(L_HEADPHONE_VOLUME,0x0180+volume);//改变音量
EALLOW; // This is needed to write to EALLOW protected registers
PieVectTable.MRINTA = &ISRMcbspSend; //把函数的地址赋值给中断向量MRINTA的向量地址中
EDIS;// This is needed to disable write to EALLOW protected registersPieCtrlRegs.PIECTRL.bit.ENPIE = 1;// Enable the PIE blockPieCtrlRegs.PIEIER6.bit.INTx5=1;// Enable PIE Group 6, INT 5IER |= M_INT6;// Enable CPU INT6
EINT;// Enable Global interrupt INTM
while(1)
{ for(temp=30000;temp>0;temp-=100)
{ for(i=0;i<2;i++) { y=5000; delay(temp); //播放警报// McbspaRegs.DXR1.all = y; y=-5000; delay(temp); //播放警报// McbspaRegs.DXR1.all = y; }
}
}
}
interrupt void ISRMcbspSend(void)
{
//int temp;
//
//PieCtrlRegs.PIEACK.all = PIEACK_GROUP6;
//temp=McbspaRegs.DRR1.all;
//
//DA_rptr++;
//if(DA_rptr>=500)
//DA_rptr=0;
//
//ADbuf[DA_rptr]=temp;//保存录音数据
//
//if(play_mode==0)
//McbspaRegs.DXR1.all = y;
////警报声的幅值
//else
//McbspaRegs.DXR1.all = temp;//放音
}
mangui zhang：
回复 ian:
最好将解决办法分享一下仿真停止还在播放是不是代码没停下来还在RAM中跑啊
本人刚开始学习TMS320F28335开发板，使用音频模块的时候有如下两个问题，还请前辈们解答：
1、使用lab7例程时，为什么停止仿真之后为什么语音录放不暂停？
2、当我把中断函数里的代码屏蔽之后还可以正常录放音，难道录放音的实现与中断没有关系？
#include "DSP2833x_Device.h"// DSP2833x Headerfile Include File
#include "DSP2833x_Examples.h"// DSP2833x Examples Include File
Uint16 volume,tAicRegs;
int ADbuf[500];
int DA_wptr,DA_rptr,y;
Uint16 play_mode=1;
void main(void)
{
Uint16 temp,i;
// Step 1. Initialize System Control:
// PLL, WatchDog, enable Peripheral Clocks
// This example function is found in the DSP2833x_SysCtrl.c file. InitSysCtrl();
// Step 2. Initalize GPIO:
// This example function is found in the DSP2833x_Gpio.c file and
// illustrates how to set the GPIO to it's default state.
// InitGpio(); // Skipped for this example
// For this example, only enable the GPIO for McBSP-A
InitXintf16Gpio(); InitMcbspaGpio();
EALLOW;GpioCtrlRegs.GPAMUX1.bit.GPIO12 = 0; //aic_dat 0为数字IO模式，1为外设IO模式GpioCtrlRegs.GPADIR.bit.GPIO12 = 1; //0为输入方向，1为输出方向GpioCtrlRegs.GPAPUD.bit.GPIO12 = 0; //使能内部上拉电阻GpioCtrlRegs.GPAMUX1.bit.GPIO13 = 0; //aic_CSGpioCtrlRegs.GPADIR.bit.GPIO13 = 1;GpioCtrlRegs.GPAPUD.bit.GPIO13 = 0;GpioCtrlRegs.GPBMUX2.bit.GPIO61 = 0; //aic_clkGpioCtrlRegs.GPBDIR.bit.GPIO61 = 1;GpioCtrlRegs.GPBPUD.bit.GPIO61 = 0;EDIS;
// Step 3. Clear all interrupts and initialize PIE vector table:
// Disable CPU interrupts DINT;
// Initialize PIE control registers to their default state.
// The default state is all PIE interrupts disabled and flags
// are cleared.
// This function is found in the DSP2833x_PieCtrl.c file. InitPieCtrl(); //IER\IFR寄存器清零
// Disable CPU interrupts and clear all CPU interrupt flags: IER = 0x0000; IFR = 0x0000;
// Initialize the PIE vector table with pointers to the shell Interrupt
// Service Routines (ISR).
// This will populate the entire table, even if the interrupt
// is not used in this example. This is useful for debug purposes.
// The shell ISR routines are found in DSP2833x_DefaultIsr.c.
// This function is found in DSP2833x_PieVect.c. InitPieVectTable(); //**初始化向量表（为PIE向量表中的所有中断向量配置对应向量的入口地址）
// Step 4. Initialize all the Device Peripherals:
// This function is found in DSP2833x_InitPeripherals.c
// InitPeripherals();// Not required for this example InitMcbspa();// Initalize the Mcbsp-A in loopback test mode
// tAicRegs = 0xFF;
// SysReg = tAicRegs;
InitAic23(); //aic23配置(单步调试声音变大)
delay(500);volume=90;WriteAic23(L_HEADPHONE_VOLUME,0x0180+volume);//改变音量
EALLOW; // This is needed to write to EALLOW protected registers
PieVectTable.MRINTA = &ISRMcbspSend; //把函数的地址赋值给中断向量MRINTA的向量地址中
EDIS;// This is needed to disable write to EALLOW protected registersPieCtrlRegs.PIECTRL.bit.ENPIE = 1;// Enable the PIE blockPieCtrlRegs.PIEIER6.bit.INTx5=1;// Enable PIE Group 6, INT 5IER |= M_INT6;// Enable CPU INT6
EINT;// Enable Global interrupt INTM
while(1)
{ for(temp=30000;temp>0;temp-=100)
{ for(i=0;i<2;i++) { y=5000; delay(temp); //播放警报// McbspaRegs.DXR1.all = y; y=-5000; delay(temp); //播放警报// McbspaRegs.DXR1.all = y; }
}
}
}
interrupt void ISRMcbspSend(void)
{
//int temp;
//
//PieCtrlRegs.PIEACK.all = PIEACK_GROUP6;
//temp=McbspaRegs.DRR1.all;
//
//DA_rptr++;
//if(DA_rptr>=500)
//DA_rptr=0;
//
//ADbuf[DA_rptr]=temp;//保存录音数据
//
//if(play_mode==0)
//McbspaRegs.DXR1.all = y;
////警报声的幅值
//else
//McbspaRegs.DXR1.all = temp;//放音
}
ian：
回复 mangui zhang:
是由于aic23语音输入模式选择的问题。例程中默认使用的是bypass模式，也就是模拟输入模拟输出，所以在中断中进行任何处理都没有作用。配置成线性输入或者麦克风输入就可行了。
