参数资料
| 型号： | AC300030 |
| 厂商： | Microchip Technology |
| 文件页数： | 37/64页 |
| 文件大小： | 0K |
| 描述： | KIT ACOUSTIC ACCESSORY |
| 标准包装： | 1 |
| 附件类型： | 配件套件 |
| 适用于相关产品： | 杂讯抑制/回声消除库 |
第1页第2页第3页第4页第5页第6页第7页第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页第30页第31页第32页第33页第34页第35页第36页当前第37页第38页第39页第40页第41页第42页第43页第44页第45页第46页第47页第48页第49页第50页第51页第52页第53页第54页第55页第56页第57页第58页第59页第60页第61页第62页第63页第64页
Application Programming Interface (API)
EXAMPLE 4-2:
LIBRARY USAGE EXAMPLE
// Channel 1 memory structures.
int ecStateMemX1 [EC_XSTATE_MEM_SIZE_INT]
// Channel 2 memory structures
int ecStateMemX2 [EC_XSTATE_MEM_SIZE_INT]
_XBSS(2); /* Step 2 */
_XBSS(2); /* Step 2 */
// Each instance can share the same X and Y scratch memory
int ecScratchX [EC_XSCRATCH_MEM_SIZE_INT] _XBSS(2); /* Step 3 */
int ecScratchY [EC_YSCRATCH_MEM_SIZE_INT] _YBSS(2); /* Step 3 */
.
.
.
void main()
{
EC_init(ecStateMemX1, ecScratchX, EC_ORDER); /* Step 4 */
EC_init(ecStateMemX2, ecScratchX, EC_ORDER); /* Step 4 */
.
.
.
While(1)
{
EC_apply(ecStateMemX1, ecScratchY, nearEndIn1, farEndIn1, EC_TRUE); /* Step 5 */
EC_applyNLP(ecStateMemX1, nearEndIn1, EC_TRUE); /* Step 6 */
EC_apply(ecStateMemX2, ecScratchY, nearEndIn2, farEndIn2, EC_TRUE); /* Step 5 */
EC_applyNLP(ecStateMemX2, nearEndIn2, EC_TRUE); /* Step 6 */
}
}
4.5
REGISTER USAGE
The dsPIC DSC Acoustic Echo Cancellation Library uses and modifies the MODCON,
CORCON, XMODSRT, XMODEND, YMODSRT, YMODEND, and PSVPAG registers.
These registers are saved and restored to their original values after the library has used
them. If these registers are modified by the application in an Interrupt Service
Routine (ISR), the application must save and restore these registers while entering and
exiting the ISR. This will prevent the ISR from corrupting the execution context,
especially if the interrupt has occurred while a library function is executing.
An ISR may access constants in program memory through a Program Space
Visibility (PSV) read operation. In case of dsPIC33F, it is suggested that the application
explicitly manage PSV operations while using the AEC library. The application should
ensure that PSV access is enabled and that the PSVPAG register contains the required
value. In case of dsPIC33E, the library does not use PSV.
? 2004-2011 Microchip Technology Inc.
DS70134F-page 37
相关PDF资料 |
PDF描述 |
|---|---|
| ACM-16 | CABLE MODULE FR3 16BIT 40-DIP |
| ACM-2X8 | ACTIVE CABLE MODULE DUAL 8 BIT |
| ACM-8 | CABLE MODULE FR3 8BIT 28/32-DIP |
| ACS9510EVB | EVALUATION BOARD FOR ACS9510 |
| ACS9550EVB | EVALUATION BOARD FOR ACS9550 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AC300031 | 制造商:Microchip Technology Inc 功能描述:ACOUSTIC ACCESSORY KIT SPEECH RECOGNITION - Boxed Product (Development Kits) 制造商:Microchip Technology Inc 功能描述:SPEECH RECOGNIZE KIT ACOUSTIC |
| AC3000-52 | 制造商:GE Energy (formerly Lineage Power) 功能描述:Front-End Power Supply 制造商:Lineage Power 功能描述:Front-End Power Supply |
| AC3000A | 制造商:Black Box Corporation 功能描述:HD VIEW TRANSMITTER |
| AC3000A-R2 | 制造商:Black Box Corporation 功能描述:HD VIEW TRANSMITTER |
| AC3000A-R2-W1 | 制造商:Black Box Corporation 功能描述:1 YEAR WARRANTY FOR AC3000A-R2 |
发布紧急采购，3分钟左右您将得到回复。