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libcsp Stress Testing

This repository includes a stress-test suite ported from libcsp_rust, supporting both Linux (SocketCAN) and STM32 (Embassy).

Linux Stress Tests

Setup

Ensure you have vcan0 or a real CAN interface up:

sudo ip link add dev vcan0 type vcan
sudo ip link set vcan0 up

Running

Open two terminals.

Terminal 1 (Receiver):

cargo run --example stress_rx -- vcan0

Terminal 2 (Sender):

cargo run --example stress_tx -- vcan0

The tests will automatically cycle through:

  1. Normal: Connectionless / UDP-like transfers.
  2. RDP: Reliable Datagram Protocol connections.
  3. SFP: Simple Fragmentation Protocol for large blobs.
  4. RDP + SFP: Reliable fragmented transfers.

STM32 Stress Tests (Embassy)

The embassy-example project provides two binaries for stress testing.

Stress Receiver

The STM32 acts as a server, verifying incoming PRNG data from a Linux sender.

cd embassy-example
cargo build --release --bin stress_rx
probe-rs run --chip STM32L4R5ZITx target/thumbv7em-none-eabihf/release/stress_rx

Stress Sender

The STM32 acts as a client, cycling through modes and sending PRNG data to a Linux receiver.

cd embassy-example
cargo build --release --bin stress_tx
probe-rs run --chip STM32L4R5ZITx target/thumbv7em-none-eabihf/release/stress_tx

Connectivity

Connect your STM32 CAN pins (PA11/PA12) to a CAN transceiver (e.g. SN65HVD230) and then to your Linux CAN interface.

Run Linux Sender:

cargo run --example stress_tx -- can0

The STM32 will verify incoming PRNG data and log statistics via RTT.

Key Parameters

  • PRNG Seed: 0x12345678 (Deterministic verification).
  • Data Port: 10.
  • SFP Port: 11.
  • MTU: 200 bytes.
  • CAN Bitrate: 1 Mbps (Adjust in main.rs and Linux ip link).