README: init

softspi
Astro 2020-03-23 23:03:58 +01:00
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# Thermostat v2 prototype firmware
## Building
### Debian-based systems (tested on Ubuntu 19.10)
- install git, clone this repository
- install [rustup](https://rustup.rs/)
```shell
rustup toolchain install nightly
rustup update
rustup target add thumbv7em-none-eabihf --toolchain nightly
rustup default nightly
cargo build --release
```
The built ELF file will be at `target/thumbv7em-none-eabihf/release/thermostat`
## Network
### Setup
Ethernet, IP: 192.168.1.26/24
Use netcat to connect to port 23/tcp (telnet)
telnet clients send binary data after connect. Enter \n once to
invalidate the first line of input.
### Reading ADC input
Set report mode to `on` 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` | Show current PWM settings |
| `pwm <0/1> max_i_pos <width>` | Set PWM duty cycle for **max_i_pos** to *width* |
| `pwm <0/1> max_i_neg <width>` | Set PWM duty cycle for **max_i_neg** to *width* |
| `pwm <0/1> max_v <width>` | Set PWM duty cycle for **max_v** to *width* |
| `pwm <0/1> <width>` | Disengage PID, set **i_set** DAC to *width* |
| `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> <t/b/r0> <value>` | Set Steinhart-Hart parameter for a channel |
| `postfilter <0/1> rate <rate>` | Set postfilter output data rate |