Bare-metal Rust on Zynq-7000

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pca006132 e67efe439b libsupport: fixed core1 restart. The TRM mentioned that user should stop the clock, de-assert the reset, and then restart the clock for core reset. This fixes the kernel restart problem in one of the zc706 board.		2020-07-07 10:17:15 +08:00
.cargo	update rust + smoltcp	2019-11-11 00:28:46 +01:00
experiments	fix exception vectors	2020-07-06 21:02:46 +08:00
libasync	TcpStream: add send_slice()	2020-06-18 01:56:49 +02:00
libboard_zynq	ddr: delint	2020-07-06 19:46:18 +02:00
libcortex_a9	FPU: moved enable function to zc706	2020-07-03 16:02:34 +08:00
libregister	finished register definitions	2020-05-01 15:38:07 +08:00
libsupport_zynq	libsupport: fixed core1 restart.	2020-07-07 10:17:15 +08:00
openocd	openocd: fix cora z7-10 PL_TAPID	2020-05-16 01:34:09 +02:00
.gitignore	remove zc706.elf from gitignore	2020-01-16 02:13:11 +08:00
armv7-none-eabihf.json	define custom target, use with cargo-xbuild	2019-08-06 22:03:04 +02:00
build.sh	improved the development process	2020-01-15 05:22:35 +08:00
Cargo.lock	Cargo.lock: cargo update	2020-05-01 01:53:39 +02:00
Cargo.toml	Cargo.toml: flip LTO back on to fit OCM	2020-04-10 20:41:16 +02:00
channel-rust-nightly.toml	Cargo.lock: fix	2020-04-25 02:03:57 +02:00
default.nix	update cargoSha256	2020-05-03 09:58:58 +08:00
qemu.gdb	PoC: boot, uart output in qemu	2019-05-05 14:56:23 +02:00
README.md	default.nix: fix	2020-01-26 01:45:49 +01:00
remote_run.sh	add remote run script	2020-06-04 19:57:52 +08:00
runner.sh	PoC: boot, uart output in qemu	2019-05-05 14:56:23 +02:00
shell.nix	default.nix: build zc706	2019-09-26 17:54:37 +02:00
tmux.sh	add support for cora z7 in tmux script	2020-01-24 07:51:29 +08:00

README.md

Build

nix-shell --command "cargo xbuild --release"

Currently the ELF output is placed at target/armv7-none-eabihf/release/experiments

Debug

Using the Xilinx toolchain

Tested with the ZC706 board.

Run the Xilinx Microprocessor Debugger:

/opt/Xilinx/14.7/ISE_DS/EDK/bin/lin64/xmd

Connect to target (given it is connected and you have permissions):

connect arm hw

Leave xmd running.

Start the Xilinx version of the GNU debugger with your latest build:

/opt/Xilinx/14.7/ISE_DS/EDK/gnu/arm/lin/bin/arm-xilinx-linux-gnueabi-gdb zc706

Connect the debugger to xmd over TCP on localhost:

target remote :1234

Proceed using gdb with load, c

Using OpenOCD

Running on the ZC706

nix-shell --command "cargo xbuild --release"
cd openocd
openocd -f zc706.cfg

Running on the Cora Z7-10

nix-shell --command "cd experiments && cargo xbuild --release --no-default-features --features=target_cora_z7_10"
cd openocd
openocd -f cora-z7-10.cfg

Loading a bitstream into volatile memory

  openocd -f zc706.cfg -c "pld load 0 blinker_migen.bit; exit"

Development Process

Clone this repo onto your development/build machine and the raspberry pi that controls the Xilinx 7000 board

On the dev machine, the below script builds zc706 and secure copies it to the target pi (in your pi $HOME directory)

cd ~/zc706
./build.sh $your_user/ssh_id

On the pi, we need an information rich environment that includes a relatively reliable gdb experience (that includes ctrl-p and ctrl-n command history that persists across cgdb executions), run:

ssh pi4
cd zc706
./tmux.sh

Time to run your code with:

zynq-connect
zynq-restart
c

or, for a more succinct experience, (identical to above)

dc
dr
c

After every build on your dev machine, simply run:

dr
c

Sometimes you might need to type load after dr.