Rust experiments on the Adafruit Circuit Playground Bluefruit

The Setup

Following setup was used when running these examples.

The Adafruit Circuit Playground Bluefruit (CPB) is connected to a J-Link EDU through the SWD interface on the back of the CPB. A USB-to-serial adapter is connected to the GNG/RX/TX connectors on the edge of the board.

Debugging

JLinkGDBServer from Segger is used to debug, see the jlinkgdb shell script on how JLinkGDBServer is invoked.

Start the GDB server with jlinkgdb.

$ ./jlinkgdb

Then run the program

$ cargo run --example neopixel

cargo will use the run definition found in .cargo/config to launch gdb with the jlink.gdb script file.

Issue the gdb command continue/c to run the program in the debugger.