HDL Code Generation Erros

I am trying to make a Pattern Detector who will detect the pattern 1101001 by using Moore FSM. My FSM is working fine but when i am trying to generate a HDL code,I am getting many errors and unable to rectify them. Please help me to generate Verilog/VHDL Code. I am unable to do it. I will be very thankful to you,please help me ?

Answer 1

[Kiran Kintali]

>> makehdl(gcb)
### Generating HDL for 'Pattern_Detector_19a/Subsystem'.
### Using the config set for model Pattern_Detector_19a for HDL code generation parameters.
### Starting HDL check.
### Begin VHDL Code Generation for 'Pattern_Detector_19a'.
### Working on Pattern_Detector_19a/Subsystem/Chart as hdlsrc\Pattern_Detector_19a\Chart.vhd.
### Working on Pattern_Detector_19a/Subsystem as hdlsrc\Pattern_Detector_19a\Subsystem.vhd.
### Generating package file hdlsrc\Pattern_Detector_19a\Subsystem_pkg.vhd.
### Creating HDL Code Generation Check Report Subsystem_report.html
### HDL check for 'Pattern_Detector_19a' complete with 0 errors, 0 warnings, and 0 messages.
### HDL code generation complete.
>> ver
-----------------------------------------------------------------------------------------------------
MATLAB Version: 9.6.0.1472908 (R2019a) Update 9
MATLAB License Number: unknown
Operating System: Microsoft Windows 10 Enterprise Version 10.0 (Build 19041)
Java Version: Java 1.8.0_181-b13 with Oracle Corporation Java HotSpot(TM) 64-Bit Server VM mixed mode
-----------------------------------------------------------------------------------------------------

Can you try the attached model again? As you can see I do not see such error.

[kameshwar saini]

Same errors again,but this time only 3 errors.Last error is removed now.

Sir,why am i getting these errors, any idea ?Please help.From 10 AM i am trying this and now its almost 1:00AM.

[Kiran Kintali]

can you share your >ver output?

MATLAB Version: 9.6.0.1472908 (R2019a) Update 9

[kameshwar saini]

I was using old version previously but now i updated to : MATLAB Version: 9.6.0.1472908 (R2019a) Update 9.

Still getting the following errors.

[kameshwar saini]

I got the mistake , I was generating the HDL code for whole system,while i have to do it for subsystem only.

Now i did it for subsystem, and i able to generate it successfully . Thank you so much sir, I have no words to say thanks to you. Thank you again.

Answer 2

[Kiran Kintali]

HDLCoder does not support Stateflow chart configured with floating-point types.

Based on your application you do not need support for floating-point types for this pattern detection example. Changing input types to boolean and changing output assignment to logical true/false for OV variable you can trivially transform the moore chart model to use efficient logic types and generate a hardware friendly state machine.

With these changes I was able to generate code for the model.

>> makehdl(gcb)
### Generating HDL for 'Pattern_Detector/Subsystem'.
### Using the config set for model Pattern_Detector for HDL code generation parameters.
### Running HDL checks on the model 'Pattern_Detector'.
### Begin compilation of the model 'Pattern_Detector'...
### Applying HDL optimizations on the model 'Pattern_Detector'...
### Begin model generation.
### Model generation complete.
### Begin VHDL Code Generation for 'Pattern_Detector'.
### Working on Pattern_Detector/Subsystem/Chart as hdlsrc\Pattern_Detector\Chart.vhd.
### Working on Pattern_Detector/Subsystem as hdlsrc\Pattern_Detector\Subsystem.vhd.
### Generating package file hdlsrc\Pattern_Detector\Subsystem_pkg.vhd.
### Code Generation for 'Pattern_Detector' completed.
### Creating HDL Code Generation Check Report Subsystem_report.html
### HDL check for 'Pattern_Detector' complete with 0 errors, 0 warnings, and 0 messages.
### HDL code generation complete.

If you have trouble loading the model try

web(fullfile(docroot, 'simulink/gui/simulink-preferences-model-file-pane.html'))

slprivate('showprefs') and uncheck "Do not load models created with a newer version of Simulink"

or run this command

>>set_param(0, 'ErrorIfLoadShadowedModel', 'off')

[kameshwar saini]

Thank you for trying to help me,but sir i am unable to load the model, I unchecked - "Do not load models created with a newer version of Simulink"

But getting 2 warnings and a blank modal is loaded.

Can you please save it in previous version of MATLAB 2019a,It will be a great help for me. I am too much worried about it,Please kindly help me.

[Kiran Kintali]

If you have trouble loading the model try

web(fullfile(docroot, 'simulink/gui/simulink-preferences-model-file-pane.html'))

slprivate('showprefs') and uncheck "Do not load models created with a newer version of Simulink"

or run this command

>>set_param(0, 'ErrorIfLoadShadowedModel', 'off')

[kameshwar saini]

I tried but the same but did not work for me.

[Kiran Kintali]

Attached 19a model.

[kameshwar saini]

Sir Model is loaded ,but when i am generating HDL code, it is showing following error for me . Why?