FSBL

FSBL code is at https://github.com/Xilinx/embeddedsw/

there:

cd lib/sw_apps/zynq_fsbl/src/ && make BOARD=zed CFLAGS=-DFSBL_DEBUG_INFO

Building

Requirements [TBC]:

• cmake
• arm-none-eabi-gcc

satisfy Rust requirements

cd ../mission_rust
cargo update 
rustup toolchain install nightly
rustup component add rust-src --toolchain nightly-x86_64-unknown-linux-gnu
rustup override set default nightly
cargo build -Z build-std

mkdir build_cli
cd build_cli
cmake -DCMAKE_TOOLCHAIN_FILE=../bsp_z7/cmake/arm-none-eabi.toolchain ..
make -j 4

Debugging on zedboard

Requirements [TBC]:

• OpenOCD
• arm-none-eabi-gdb

Set Zedboard boot mode to jtag and connect debugging PC to zedboard jtag and uart usb port.

On PC connected to zedboard jtag usb port:

openocd -f board/digilent_zedboard.cfg

To use JTAG Boot for the obsw, you first need to run the FSBL once.

On build PC (adapt IP if different from debugging PC) in the folder where you build the FSBL as above:

arm-none-eabi-gdb fsbl.elf
>target extended-remote localhost:3333
>load
>cont
>^C^D^D

You can automate this run:

arm-none-eabi-gdb fsbl.elf -iex "target extended-remote localhost:3333" -ex "set pagination off" -ex "load" -ex "break FsblHandoffJtagExit" -ex "cont" -ex="set confirm off" -ex "exit"

It will exit after the Zynq is configured and ready to firmware.

Then load the actual obsw, in the build (build_cli in the example above) folder run:

arm-none-eabi-gdb romeo-obsw
>target extended-remote localhost:3333
>load
>cont

Again, cli commands can be moved to the gdb call. Also, a small function is used as marker to return from gdb if the mission code returns (should not happen in production but might be useful during testing).

arm-none-eabi-gdb romeo-obsw -iex "target extended-remote localhost:3333" -ex "set pagination off" -ex "load" -ex "break done" -ex "cont" -ex="set confirm off" -ex "exit"

Uart usb port should output something at 115200baud, (I use moserial to monitor).