History

Astro 7efd42715e tec: enable GPIO pins for TEC SHDN		2019-11-10 22:27:20 +01:00
..
.cargo	Update for latest nightly.	2018-08-28 19:57:17 +00:00
src	tec: enable GPIO pins for TEC SHDN	2019-11-10 22:27:20 +01:00
Cargo.lock	upgrade to current rust + smoltcp	2019-10-30 19:53:35 +01:00
Cargo.toml	upgrade to current rust + smoltcp	2019-10-30 19:53:35 +01:00
README.md	command_parser: shorten to parallel_r, add tests	2019-10-02 21:25:06 +02:00
build.rs	build.rs: delint	2019-10-30 19:55:15 +01:00
memory.x	Move firmware to firmware/.	2017-05-05 09:23:08 +00:00
openocd.cfg	adapt OpenOCD script	2019-08-21 17:00:13 +08:00

README.md

Thermostat v1 prototype firmware

Building

On Debian-based systems

install rustup

apt install gcc gcc-arm-none-eabi git-core
rustup toolchain install nightly
rustup update
rustup target add thumbv7em-none-eabihf --toolchain nightly
rustup default nightly
rustup component add rust-src
cargo install cargo-xbuild
git clone https://github.com/llvm/llvm-project.git
export RUST_COMPILER_RT_ROOT=`pwd`/llvm-project/compiler-rt

cd firmware && cargo xbuild --release

The built ELF file will be at target/thumbv7em-none-eabihf/release/ionpak-firmware

Development build on NixOS

Requires NixOS 19.09 or later for cargo-xbuild.

nix-shell --run "cd firmware && cargo xbuild --release"

Network

Setup

Ethernet, IP: 192.168.1.26/24

Use telnet or netcat to connect to port 23/tcp (telnet)

Reading ADC input

Set report mode to once to obtain the single next value. Report mode will turn itself off after the next reading.

Set report mode to continuous for a continuous stream of input data.

The scope of this setting is per TCP session.

Commands

Syntax	Function
`report`	Show current input
`report mode`	Show current report mode
`report mode <off/on>`	Set report mode
`pwm <0/1> max_i_pos <width> <total>`	Set PWM duty cycle for max_i_pos to width / total
`pwm <0/1> max_i_neg <width> <total>`	Set PWM duty cycle for max_i_neg to width / total
`pwm <0/1> max_v <width> <total>`	Set PWM duty cycle for max_v to width / total
`pwm <0/1> <width> <total>`	Set PWM duty cycle for i_set to manual width / total
`pwm <0/1> pid`	Set PWM to be controlled by PID
`pid`	Show PID configuration
`pid <0/1> target <value>`	Set the PID controller target
`pid <0/1> kp <value>`	Set proportional gain
`pid <0/1> ki <value>`	Set integral gain
`pid <0/1> kd <value>`	Set differential gain
`pid <0/1> output_min <value>`	Set mininum output
`pid <0/1> output_max <value>`	Set maximum output
`pid <0/1> integral_min <value>`	Set integral lower bound
`pid <0/1> integral_max <value>`	Set integral upper bound
`s-h`	Show Steinhart-Hart equation parameters
`s-h <0/1> <a/b/c> <value>`	Set Steinhart-Hart parameter for a channel
`s-h <0/1> parallel_r <value>`	Set parallel resistance of the ADC
`postfilter <0/1> rate <rate>`	Set postfilter output data rate