收藏本站
Chapter 13: Troubleshooting
13–7
Troubleshooting Issues
You can avoid these problems by inserting a Non-synthesizable Output block
followed immediately by a Non-synthesizable Input block. This combination
functions as a temporary input terminator and you can remove them after you debug
your design.
A Specified Path Cannot be Found or a File Name is Too Long
The maximum length for a path is limited to 256 characters in the Windows operating
system.
When the file path to a model or the name of the model is very long, DSP Builder may
attempt to create a file path exceeding this limit.
If this problem occurs, reduce the length of the file path to the model or the length of
its name.
Incorrect Interpretation of Number Format in Output from MegaCore
Functions
For some MegaCore functions, DSP Builder may be unable to infer whether it should
interpret output signals as signed, unsigned, signed fractional. This issue can cause
problems when visualizing the output. For example, by directly attaching scopes,
when the signal waveform may obscur because of the incorrectly inferred number
formats.
Correct this issue by connecting to the output with an AltBus block or a
Non-synthesizable Output block (as appropriate) with the correct bus type
assignment.
Simulation Mismatch For FIR Compiler MegaCore Function
FIR Compiler MegaCore function-generated functional simulation models generally
do not output valid data until the data storage of these models is clear.
f For more information including a formula that estimates the number of cycles before
relevant samples are available, refer to the Simulate the Design section in the FIR
Compiler User Guide .
Simulation Mismatch After Changing Signals or Parameters
The simulation results may not match after changing any signal names or parameters.
If this problem occurs, delete the previous testbench directory ( tb_< model name > )
and run the simulation again.
Unexpected Exception Error when Generating Blocks
DSP Builder issues errors of the following form when you generate a DSP Builder
system:
Info: IP Generator Info: stderr: No clock info for
my_alt_dspbuilder_clock
Info: IP Generator Info: stderr: Failed to find clock
my_alt_dspbuilder_clock
November 2013
Altera Corporation
DSP Builder Handbook
Volume 2: DSP Builder Standard Blockset
发布紧急采购，3分钟左右您将得到回复。

采购需求

(若只采购一条型号，填写一行即可)

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

发布成功！您可以继续发布采购。也可以进入我的后台，查看报价

*型号 *数量 厂商 批号 封装
添加更多采购

我的联系方式

*
*
*
相关PDF资料
IR11662SPBF IC CNTROL SMART RECTIFIER 8-SOIC
IR1166STRPBF IC MOSFET DRIVER N-CH 200V 8SOIC
IR11672ASPBF IC MOSFET DRIVER 200V 8-SOIC
IR1167ASTRPBF IC SMART SECONDARY DRIVER 8-SOIC
IR11682STRPBF IC MOSFET DRIVER DUAL 200V 8SOIC
IR1168SPBF IC MOSFET DRIVER DUAL 200V 8SOIC
IR1176STR IC DRIVER RECT SYNC 5V 4A 20SSOP
IR2010SPBF IC DRIVER HIGH/LOW SIDE 16SOIC
相关代理商/技术参数
IP-TRIETHERNET 功能描述:开发软件 Triple Spd Ethernet MegaCore RoHS:否 制造商:Atollic Inc. 产品:Compilers/Debuggers 用于:ARM7, ARM9, Cortex-A, Cortex-M, Cortex-R Processors
IP-TRIETHERNETF 功能描述:开发软件 3x Spd Ethernet MAC MegaCore RoHS:否 制造商:Atollic Inc. 产品:Compilers/Debuggers 用于:ARM7, ARM9, Cortex-A, Cortex-M, Cortex-R Processors
IPTV-OPTION-INS970 制造商:3M Electronic Products Division 功能描述:IPTV OPTION FOR INS970
IPU039N03L G 功能描述:MOSFET N-CH 30V 50A 3.9mOhms RoHS:否 制造商:STMicroelectronics 晶体管极性:N-Channel 汲极/源极击穿电压:650 V 闸/源击穿电压:25 V 漏极连续电流:130 A 电阻汲极/源极 RDS（导通）:0.014 Ohms 配置:Single 最大工作温度: 安装风格:Through Hole 封装 / 箱体:Max247 封装:Tube
IPU039N03LG 制造商:INFINEON 制造商全称:Infineon Technologies AG 功能描述:OptiMOS?3 Power-Transistor Features Fast switching MOSFET for SMPS
IPU039N03LGXK 制造商:Infineon Technologies AG 功能描述:Trans MOSFET N-CH 30V 50A 3-Pin(3+Tab) TO-251
IPU04N03LA 功能描述:MOSFET N-CH 25V 50A IPAK RoHS:否 类别:分离式半导体产品 >> FET - 单 系列:OptiMOS™ 标准包装:1,000 系列:MESH OVERLAY™ FET 型:MOSFET N 通道，金属氧化物 FET 特点:逻辑电平门 漏极至源极电压(Vdss):200V 电流 - 连续漏极(Id) @ 25° C:18A 开态Rds（最大）@ Id, Vgs @ 25° C:180 毫欧 @ 9A，10V Id 时的 Vgs(th)（最大）:4V @ 250µA 闸电荷(Qg) @ Vgs:72nC @ 10V 输入电容 (Ciss) @ Vds:1560pF @ 25V 功率 - 最大:40W 安装类型:通孔 封装/外壳:TO-220-3 整包 供应商设备封装:TO-220FP 包装:管件
IPU04N03LA G 功能描述:MOSFET N-CH 25V 50A IPAK RoHS:是 类别:分离式半导体产品 >> FET - 单 系列:OptiMOS™ 标准包装:1,000 系列:MESH OVERLAY™ FET 型:MOSFET N 通道，金属氧化物 FET 特点:逻辑电平门 漏极至源极电压(Vdss):200V 电流 - 连续漏极(Id) @ 25° C:18A 开态Rds（最大）@ Id, Vgs @ 25° C:180 毫欧 @ 9A，10V Id 时的 Vgs(th)（最大）:4V @ 250µA 闸电荷(Qg) @ Vgs:72nC @ 10V 输入电容 (Ciss) @ Vds:1560pF @ 25V 功率 - 最大:40W 安装类型:通孔 封装/外壳:TO-220-3 整包 供应商设备封装:TO-220FP 包装:管件