Running an example starts gdb which either times out or does nothing

[GregoryTravis]

I'm trying to run an example this way:

cargo run --example audio_passthrough

It starts gdb, then says it can't find openocd.gdb. I copied openocd.gdb from https://github.com/antoinevg/hello-daisy, and now I see this:

    Finished dev [optimized + debuginfo] target(s) in 0.13s
     Running `arm-none-eabi-gdb -q -x openocd.gdb target/thumbv7em-none-eabihf/debug/examples/audio_passthrough`
Reading symbols from target/thumbv7em-none-eabihf/debug/examples/audio_passthrough...

And I get no audio passthrough.

Is there a way to simply flash the Dasiy Seed, without using gdb?