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I have a SOC verification bench in C/ASM and integrated SV/Verilog based BFM/VIP. The system level tests are based on C/ASM.
To carry out functional simulations, the C/ASM tests are compiled, linked at the binary data of instructions are read into the On-Chip Memory for execution.
How can we enable the above environment where BFM(say its a master), waits for the system to reach to a point where system is ready and BFM(say its a master) can request data from/to the SOC?
To say in a short words, how can we achieve effective handshake between Verilog/SV(BFM) - C/ASM environments.
Could somebody please donate your ideas.
Assuming that your C/ASM is running on a CPU inside the SoC, a common techniqueis to have some GPIO ports on the SoC connected to "registers" in the testbench. Your BFM would be triggered by the data written into the registers when the C/ASM test wants to control the BFM. This is one of the approaches used by the Cadence VIPs for SoC-level, our VIP documentation refers to it as "virtual register interface".
An alternative approach is to stub out the CPU and use a BFM instead. This BFM is driven by your test software which runs on the host workstation and talks via SV-DPI to the BFM.