Below is the OP5707XG system structure. I am using eHs, which is based on FPGA. There is a VC707 FPGA in the OP5707XG system structure. Is ht eHs working in VC707 as shown in the OP5707XG system structure?
Hello @Vincent_Jiang
Yes, absolutely. The eHS (electric Hardware Solver) runs directly inside the VC707 FPGA board shown in the upper section of the OP5707XG architecture.
How eHS Operates in this Structure
Physical Solver on the FPGA (VC707):
The VC707 is a Xilinx Virtex-7 FPGA board (marked as VC707 PCIe ID: 00).
When you build and load an eHS configuration (via RT-LAB or HYPERSIM), the eHS firmware/bitstream is executed inside this VC707 FPGA.
This allows eHS to solve electric circuits and fast-switching power converters at sub-microsecond time steps (typically \approx 100\text{–}1000,\text{ns}).
Direct Hardware I/O Interfacing:
The VC707 connects directly to the I/O mezzanine modules installed in your chassis:
Group 1: OP5330-3 (Analog Outputs) & OP5340-1 (Analog Inputs)
Group 2: OP5353-1 (Digital Inputs) & OP5360-3 (Digital Outputs)
High-speed optical links: SFP Channels (0–15)
This direct link enables low-latency hardware-in-the-loop (HIL) I/O feedback without routing through the CPU.
CPU ↔ FPGA Communication via PCIe:
The PC Section (lower half, with the multi-core Intel Xeon CPUs) runs the grid-level simulation or high-level control tasks.
Data exchange between the CPU model and the eHS circuit on the VC707 takes place in real time over the internal PCIe bus.
@Parija Thank you for your information.