Memory not Initialized in Simulink HDL causing problems in FPGA simulation.
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The FPGA simulation, like modelsim, does not like reading from not initialized memory, it creates undefined signals. But I cannot reproduce this problem in Simulink HDL since all memory are initialized to zero at startup by default.
Is there a way for Simulink to assume that memory at startup is undefined and at least give a warning if it reads from undefined memory?
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Kiran Kintali
2022-11-10
RTL Customization Parameters for RAMs
This page describes parameters that reside in the HDL Code Generation > Global Settings > Coding Style tab of the Configuration Parameters dialog box.Initialize all RAM blocks
Enable or suppress generation of initial signal value for RAM blocks. If you specify a nonzero initial value for the RAM, this setting is ignored.
Default: On For RAM blocks, generate initial values of '0' for both the RAM signal and the output temporary signal.
Off: For RAM blocks, do not generate initial values for either the RAM signal or the output temporary signal.
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Kiran Kintali
2022-11-10
I think you are asking for a Simulation behavior change on the RAM blocks. Please reach out to tech support with your request. Thanks
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