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thermostat
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TCP command: Rename `pwm` to `output` 

Current limit pins are driven by PWM inputs to the MAX1968 driver, but
this is an implementation detail, and should not be exposed in the form
of the command interface. Rename "pwm" to "output" in all instances.

See #62 (comment).
This commit is contained in:
atse 2024-08-15 17:38:03 +08:00
parent 101a68fcfc
commit f68ae12c8d
7 changed files with 99 additions and 99 deletions
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86
README.md
View File

@ -92,41 +92,41 @@ ADC input data is provided in reports. Query for the latest report with the comm
Send commands as simple text string terminated by `\n`. Responses are Send commands as simple text string terminated by `\n`. Responses are
formatted as line-delimited JSON. formatted as line-delimited JSON.
| Syntax | Function | | Syntax | Function |
|------------------------------------------- |-------------------------------------------------------------------------------| |-------------------------------------------|-------------------------------------------------------------------------------|
| `report` | Show latest report of channel parameters (see *Reports* section) | | `report` | Show latest report of channel parameters (see *Reports* section) |
| `pwm` | Show current PWM settings | | `output` | Show current output settings |
| `pwm <0/1> max_i_pos <amp>` | Set maximum positive output current, clamped to [0, 2] | | `output <0/1> max_i_pos <amp>` | Set maximum positive output current, clamped to [0, 2] |
| `pwm <0/1> max_i_neg <amp>` | Set maximum negative output current, clamped to [0, 2] | | `output <0/1> max_i_neg <amp>` | Set maximum negative output current, clamped to [0, 2] |
| `pwm <0/1> max_v <volt>` | Set maximum output voltage, clamped to [0, 4] | | `output <0/1> max_v <volt>` | Set maximum output voltage, clamped to [0, 4] |
| `pwm <0/1> i_set <amp>` | Disengage PID, set fixed output current, clamped to [-2, 2] | | `output <0/1> i_set <amp>` | Disengage PID, set fixed output current, clamped to [-2, 2] |
| `pwm <0/1> polarity <normal/reversed>` | Set output current polarity, with 'normal' being the front panel polarity | | `output <0/1> polarity <normal/reversed>` | Set output current polarity, with 'normal' being the front panel polarity |
| `pwm <0/1> pid` | Let output current to be controlled by the PID | | `output <0/1> pid` | Let output current to be controlled by the PID |
| `center <0/1> <volt>` | Set the MAX1968 0A-centerpoint to the specified fixed voltage | | `center <0/1> <volt>` | Set the MAX1968 0A-centerpoint to the specified fixed voltage |
| `center <0/1> vref` | Set the MAX1968 0A-centerpoint to measure from VREF | | `center <0/1> vref` | Set the MAX1968 0A-centerpoint to measure from VREF |
| `pid` | Show PID configuration | | `pid` | Show PID configuration |
| `pid <0/1> target <deg_celsius>` | Set the PID controller target temperature | | `pid <0/1> target <deg_celsius>` | Set the PID controller target temperature |
| `pid <0/1> kp <value>` | Set proportional gain | | `pid <0/1> kp <value>` | Set proportional gain |
| `pid <0/1> ki <value>` | Set integral gain | | `pid <0/1> ki <value>` | Set integral gain |
| `pid <0/1> kd <value>` | Set differential gain | | `pid <0/1> kd <value>` | Set differential gain |
| `pid <0/1> output_min <amp>` | Set mininum output | | `pid <0/1> output_min <amp>` | Set mininum output |
| `pid <0/1> output_max <amp>` | Set maximum output | | `pid <0/1> output_max <amp>` | Set maximum output |
| `s-h` | Show Steinhart-Hart equation parameters | | `s-h` | Show Steinhart-Hart equation parameters |
| `s-h <0/1> <t0/b/r0> <value>` | Set Steinhart-Hart parameter for a channel | | `s-h <0/1> <t0/b/r0> <value>` | Set Steinhart-Hart parameter for a channel |
| `postfilter` | Show postfilter settings | | `postfilter` | Show postfilter settings |
| `postfilter <0/1> off` | Disable postfilter | | `postfilter <0/1> off` | Disable postfilter |
| `postfilter <0/1> rate <rate>` | Set postfilter output data rate | | `postfilter <0/1> rate <rate>` | Set postfilter output data rate |
| `load [0/1]` | Restore configuration for channel all/0/1 from flash | | `load [0/1]` | Restore configuration for channel all/0/1 from flash |
| `save [0/1]` | Save configuration for channel all/0/1 to flash | | `save [0/1]` | Save configuration for channel all/0/1 to flash |
| `reset` | Reset the device | | `reset` | Reset the device |
| `dfu` | Reset device and enters USB device firmware update (DFU) mode | | `dfu` | Reset device and enters USB device firmware update (DFU) mode |
| `ipv4 <X.X.X.X/L> [Y.Y.Y.Y]` | Configure IPv4 address, netmask length, and optional default gateway | | `ipv4 <X.X.X.X/L> [Y.Y.Y.Y]` | Configure IPv4 address, netmask length, and optional default gateway |
| `fan` | Show current fan settings and sensors' measurements | | `fan` | Show current fan settings and sensors' measurements |
| `fan <value>` | Set fan power with values from 1 to 100 | | `fan <value>` | Set fan power with values from 1 to 100 |
| `fan auto` | Enable automatic fan speed control | | `fan auto` | Enable automatic fan speed control |
| `fcurve <a> <b> <c>` | Set fan controller curve coefficients (see *Fan control* section) | | `fcurve <a> <b> <c>` | Set fan controller curve coefficients (see *Fan control* section) |
| `fcurve default` | Set fan controller curve coefficients to defaults (see *Fan control* section) | | `fcurve default` | Set fan controller curve coefficients to defaults (see *Fan control* section) |
| `hwrev` | Show hardware revision, and settings related to it | | `hwrev` | Show hardware revision, and settings related to it |
## USB ## USB
@ -183,7 +183,7 @@ postfilter rate can be tuned with the `postfilter` command.
When using a TEC module with the Thermostat, the Thermostat expects the thermal load (where the thermistor is located) to cool down with a positive software current set point, and heat up with a negative current set point. When using a TEC module with the Thermostat, the Thermostat expects the thermal load (where the thermistor is located) to cool down with a positive software current set point, and heat up with a negative current set point.
If the Thermostat is used for temperature control with the Sinara 5432 DAC "Zotino", and is connected via an IDC cable, the TEC polarity may need to be reversed with the `pwm <ch> polarity reversed` TCP command. If the Thermostat is used for temperature control with the Sinara 5432 DAC "Zotino", and is connected via an IDC cable, the TEC polarity may need to be reversed with the `output <ch> polarity reversed` TCP command.
Testing heat flow direction with a low set current is recommended before installation of the TEC module. Testing heat flow direction with a low set current is recommended before installation of the TEC module.
@ -192,7 +192,7 @@ Testing heat flow direction with a low set current is recommended before install
Each MAX1968 TEC driver has analog/PWM inputs for setting Each MAX1968 TEC driver has analog/PWM inputs for setting
output limits. output limits.
Use the `pwm` command to see current settings and maximum values. Use the `output` command to see current settings and maximum values.
| Limit | Unit | Description | | Limit | Unit | Description |
| --- | :---: | --- | | --- | :---: | --- |
@ -203,28 +203,28 @@ Use the `pwm` command to see current settings and maximum values.
Example: set the maximum voltage of channel 0 to 1.5 V. Example: set the maximum voltage of channel 0 to 1.5 V.
``` ```
pwm 0 max_v 1.5 output 0 max_v 1.5
``` ```
Example: set the maximum negative current of channel 0 to -3 A. Example: set the maximum negative current of channel 0 to -3 A.
``` ```
pwm 0 max_i_neg 3 output 0 max_i_neg 3
``` ```
Example: set the maximum positive current of channel 1 to 3 A. Example: set the maximum positive current of channel 1 to 3 A.
``` ```
pwm 0 max_i_pos 3 output 0 max_i_pos 3
``` ```
### Open-loop mode ### Open-loop mode
To manually control TEC output current, set a fixed output current with To manually control TEC output current, set a fixed output current with
the `pwm` command. Doing so will disengage the PID control for that the `output` command. Doing so will disengage the PID control for that
channel. channel.
Example: set output current of channel 0 to 0 A. Example: set output current of channel 0 to 0 A.
``` ```
pwm 0 i_set 0 output 0 i_set 0
``` ```
## PID-stabilized temperature control ## PID-stabilized temperature control
@ -237,7 +237,7 @@ pid 0 target 20
Enter closed-loop mode by switching control of the TEC output current Enter closed-loop mode by switching control of the TEC output current
of channel 0 to the PID algorithm: of channel 0 to the PID algorithm:
``` ```
pwm 0 pid output 0 pid
``` ```
## LED indicators ## LED indicators

4
pytec/autotune.py
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@ -253,9 +253,9 @@ def main():
tuner_out = tuner.output() tuner_out = tuner.output()
tec.set_param("pwm", channel, "i_set", tuner_out) tec.set_param("output", channel, "i_set", tuner_out)
tec.set_param("pwm", channel, "i_set", 0) tec.set_param("output", channel, "i_set", 0)
if __name__ == "__main__": if __name__ == "__main__":

4
pytec/example.py
View File

@ -2,9 +2,9 @@ from pytec.client import Client
tec = Client() #(host="localhost", port=6667) tec = Client() #(host="localhost", port=6667)
tec.set_param("s-h", 1, "t0", 20) tec.set_param("s-h", 1, "t0", 20)
print(tec.get_pwm()) print(tec.get_output())
print(tec.get_pid()) print(tec.get_pid())
print(tec.get_pwm()) print(tec.get_output())
print(tec.get_postfilter()) print(tec.get_postfilter())
print(tec.get_steinhart_hart()) print(tec.get_steinhart_hart())
for data in tec.report_mode(): for data in tec.report_mode():

18
pytec/pytec/client.py
View File

@ -13,11 +13,11 @@ class Client:
self._check_zero_limits() self._check_zero_limits()
def _check_zero_limits(self): def _check_zero_limits(self):
pwm_report = self.get_pwm() output_report = self.get_output()
for pwm_channel in pwm_report: for output_channel in output_report:
for limit in ["max_i_neg", "max_i_pos", "max_v"]: for limit in ["max_i_neg", "max_i_pos", "max_v"]:
if pwm_channel[limit] == 0.0: if output_channel[limit] == 0.0:
logging.warning("`{}` limit is set to zero on channel {}".format(limit, pwm_channel["channel"])) logging.warning("`{}` limit is set to zero on channel {}".format(limit, output_channel["channel"]))
def _read_line(self): def _read_line(self):
# read more lines # read more lines
@ -47,8 +47,8 @@ class Client:
result[int(item["channel"])] = item result[int(item["channel"])] = item
return result return result
def get_pwm(self): def get_output(self):
"""Retrieve PWM limits for the TEC """Retrieve output limits for the TEC
Example:: Example::
[{'channel': 0, [{'channel': 0,
@ -67,7 +67,7 @@ class Client:
'polarity': 'normal', 'polarity': 'normal',
] ]
""" """
return self._get_conf("pwm") return self._get_conf("output")
def get_pid(self): def get_pid(self):
"""Retrieve PID control state """Retrieve PID control state
@ -144,7 +144,7 @@ class Client:
"""Set configuration parameters """Set configuration parameters
Examples:: Examples::
tec.set_param("pwm", 0, "max_v", 2.0) tec.set_param("output", 0, "max_v", 2.0)
tec.set_param("pid", 1, "output_max", 2.5) tec.set_param("pid", 1, "output_max", 2.5)
tec.set_param("s-h", 0, "t0", 20.0) tec.set_param("s-h", 0, "t0", 20.0)
tec.set_param("center", 0, "vref") tec.set_param("center", 0, "vref")
@ -161,7 +161,7 @@ class Client:
def power_up(self, channel, target): def power_up(self, channel, target):
"""Start closed-loop mode""" """Start closed-loop mode"""
self.set_param("pid", channel, "target", value=target) self.set_param("pid", channel, "target", value=target)
self.set_param("pwm", channel, "pid") self.set_param("output", channel, "pid")
def save_config(self): def save_config(self):
"""Save current configuration to EEPROM""" """Save current configuration to EEPROM"""

10
src/channels.rs
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@ -521,8 +521,8 @@ impl Channels {
false false
} }
fn pwm_summary(&mut self, channel: usize) -> PwmSummary { fn output_summary(&mut self, channel: usize) -> OutputSummary {
PwmSummary { OutputSummary {
channel, channel,
center: CenterPointJson(self.channel_state(channel).center.clone()), center: CenterPointJson(self.channel_state(channel).center.clone()),
i_set: self.get_i(channel), i_set: self.get_i(channel),
@ -533,10 +533,10 @@ impl Channels {
} }
} }
pub fn pwm_summaries_json(&mut self) -> Result<JsonBuffer, serde_json_core::ser::Error> { pub fn output_summaries_json(&mut self) -> Result<JsonBuffer, serde_json_core::ser::Error> {
let mut summaries = Vec::<_, U2>::new(); let mut summaries = Vec::<_, U2>::new();
for channel in 0..CHANNELS { for channel in 0..CHANNELS {
let _ = summaries.push(self.pwm_summary(channel)); let _ = summaries.push(self.output_summary(channel));
} }
serde_json_core::to_vec(&summaries) serde_json_core::to_vec(&summaries)
} }
@ -630,7 +630,7 @@ impl Serialize for PolarityJson {
} }
#[derive(Serialize)] #[derive(Serialize)]
pub struct PwmSummary { pub struct OutputSummary {
channel: usize, channel: usize,
center: CenterPointJson, center: CenterPointJson,
i_set: ElectricCurrent, i_set: ElectricCurrent,

10
src/command_handler.rs
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@ -96,7 +96,7 @@ impl Handler {
} }
fn show_pwm(socket: &mut TcpSocket, channels: &mut Channels) -> Result<Handler, Error> { fn show_pwm(socket: &mut TcpSocket, channels: &mut Channels) -> Result<Handler, Error> {
match channels.pwm_summaries_json() { match channels.output_summaries_json() {
Ok(buf) => { Ok(buf) => {
send_line(socket, &buf); send_line(socket, &buf);
} }
@ -475,17 +475,17 @@ impl Handler {
Command::Quit => Ok(Handler::CloseSocket), Command::Quit => Ok(Handler::CloseSocket),
Command::Show(ShowCommand::Input) => Handler::show_report(socket, channels), Command::Show(ShowCommand::Input) => Handler::show_report(socket, channels),
Command::Show(ShowCommand::Pid) => Handler::show_pid(socket, channels), Command::Show(ShowCommand::Pid) => Handler::show_pid(socket, channels),
Command::Show(ShowCommand::Pwm) => Handler::show_pwm(socket, channels), Command::Show(ShowCommand::Output) => Handler::show_pwm(socket, channels),
Command::Show(ShowCommand::SteinhartHart) => { Command::Show(ShowCommand::SteinhartHart) => {
Handler::show_steinhart_hart(socket, channels) Handler::show_steinhart_hart(socket, channels)
} }
Command::Show(ShowCommand::PostFilter) => Handler::show_post_filter(socket, channels), Command::Show(ShowCommand::PostFilter) => Handler::show_post_filter(socket, channels),
Command::Show(ShowCommand::Ipv4) => Handler::show_ipv4(socket, ipv4_config), Command::Show(ShowCommand::Ipv4) => Handler::show_ipv4(socket, ipv4_config),
Command::PwmPid { channel } => Handler::engage_pid(socket, channels, channel), Command::OutputPid { channel } => Handler::engage_pid(socket, channels, channel),
Command::PwmPolarity { channel, polarity } => { Command::OutputPolarity { channel, polarity } => {
Handler::set_polarity(socket, channels, channel, polarity) Handler::set_polarity(socket, channels, channel, polarity)
} }
Command::Pwm { Command::Output {
channel, channel,
pin, pin,
value, value,

66
src/command_parser.rs
View File

@ -91,7 +91,7 @@ pub struct Ipv4Config {
#[derive(Debug, Clone, PartialEq)] #[derive(Debug, Clone, PartialEq)]
pub enum ShowCommand { pub enum ShowCommand {
Input, Input,
Pwm, Output,
Pid, Pid,
SteinhartHart, SteinhartHart,
PostFilter, PostFilter,
@ -149,16 +149,16 @@ pub enum Command {
Ipv4(Ipv4Config), Ipv4(Ipv4Config),
Show(ShowCommand), Show(ShowCommand),
/// PWM parameter setting /// PWM parameter setting
Pwm { Output {
channel: usize, channel: usize,
pin: PwmPin, pin: PwmPin,
value: f64, value: f64,
}, },
/// Enable PID control for `i_set` /// Enable PID control for `i_set`
PwmPid { OutputPid {
channel: usize, channel: usize,
}, },
PwmPolarity { OutputPolarity {
channel: usize, channel: usize,
polarity: Polarity, polarity: Polarity,
}, },
@ -260,12 +260,12 @@ fn pwm_setup(input: &[u8]) -> IResult<&[u8], Result<(PwmPin, f64), Error>> {
))(input) ))(input)
} }
/// `pwm <0-1> pid` - Set PWM to be controlled by PID /// `output <0-1> pid` - Set output to be controlled by PID
fn pwm_pid(input: &[u8]) -> IResult<&[u8], ()> { fn output_pid(input: &[u8]) -> IResult<&[u8], ()> {
value((), tag("pid"))(input) value((), tag("pid"))(input)
} }
fn pwm_polarity(input: &[u8]) -> IResult<&[u8], Polarity> { fn output_polarity(input: &[u8]) -> IResult<&[u8], Polarity> {
preceded( preceded(
tag("polarity"), tag("polarity"),
preceded( preceded(
@ -278,8 +278,8 @@ fn pwm_polarity(input: &[u8]) -> IResult<&[u8], Polarity> {
)(input) )(input)
} }
fn pwm(input: &[u8]) -> IResult<&[u8], Result<Command, Error>> { fn output(input: &[u8]) -> IResult<&[u8], Result<Command, Error>> {
let (input, _) = tag("pwm")(input)?; let (input, _) = tag("output")(input)?;
alt(( alt((
|input| { |input| {
let (input, _) = whitespace(input)?; let (input, _) = whitespace(input)?;
@ -287,19 +287,19 @@ fn pwm(input: &[u8]) -> IResult<&[u8], Result<Command, Error>> {
let (input, _) = whitespace(input)?; let (input, _) = whitespace(input)?;
let (input, result) = alt(( let (input, result) = alt((
|input| { |input| {
let (input, ()) = pwm_pid(input)?; let (input, ()) = output_pid(input)?;
Ok((input, Ok(Command::PwmPid { channel }))) Ok((input, Ok(Command::OutputPid { channel })))
}, },
|input| { |input| {
let (input, polarity) = pwm_polarity(input)?; let (input, polarity) = output_polarity(input)?;
Ok((input, Ok(Command::PwmPolarity { channel, polarity }))) Ok((input, Ok(Command::OutputPolarity { channel, polarity })))
}, },
|input| { |input| {
let (input, config) = pwm_setup(input)?; let (input, config) = pwm_setup(input)?;
match config { match config {
Ok((pin, value)) => Ok(( Ok((pin, value)) => Ok((
input, input,
Ok(Command::Pwm { Ok(Command::Output {
channel, channel,
pin, pin,
value, value,
@ -312,7 +312,7 @@ fn pwm(input: &[u8]) -> IResult<&[u8], Result<Command, Error>> {
end(input)?; end(input)?;
Ok((input, result)) Ok((input, result))
}, },
value(Ok(Command::Show(ShowCommand::Pwm)), end), value(Ok(Command::Show(ShowCommand::Output)), end),
))(input) ))(input)
} }
@ -569,7 +569,7 @@ fn command(input: &[u8]) -> IResult<&[u8], Result<Command, Error>> {
value(Ok(Command::Reset), tag("reset")), value(Ok(Command::Reset), tag("reset")),
ipv4, ipv4,
map(report, Ok), map(report, Ok),
pwm, output,
center_point, center_point,
pid, pid,
steinhart_hart, steinhart_hart,
@ -664,11 +664,11 @@ mod test {
} }
#[test] #[test]
fn parse_pwm_i_set() { fn parse_output_i_set() {
let command = Command::parse(b"pwm 1 i_set 16383"); let command = Command::parse(b"output 1 i_set 16383");
assert_eq!( assert_eq!(
command, command,
Ok(Command::Pwm { Ok(Command::Output {
channel: 1, channel: 1,
pin: PwmPin::ISet, pin: PwmPin::ISet,
value: 16383.0, value: 16383.0,
@ -677,11 +677,11 @@ mod test {
} }
#[test] #[test]
fn parse_pwm_polarity() { fn parse_output_polarity() {
let command = Command::parse(b"pwm 0 polarity reversed"); let command = Command::parse(b"pwm 0 polarity reversed");
assert_eq!( assert_eq!(
command, command,
Ok(Command::PwmPolarity { Ok(Command::OutputPolarity {
channel: 0, channel: 0,
polarity: Polarity::Reversed, polarity: Polarity::Reversed,
}) })
@ -689,17 +689,17 @@ mod test {
} }
#[test] #[test]
fn parse_pwm_pid() { fn parse_output_pid() {
let command = Command::parse(b"pwm 0 pid"); let command = Command::parse(b"output 0 pid");
assert_eq!(command, Ok(Command::PwmPid { channel: 0 })); assert_eq!(command, Ok(Command::OutputPid { channel: 0 }));
} }
#[test] #[test]
fn parse_pwm_max_i_pos() { fn parse_output_max_i_pos() {
let command = Command::parse(b"pwm 0 max_i_pos 7"); let command = Command::parse(b"output 0 max_i_pos 7");
assert_eq!( assert_eq!(
command, command,
Ok(Command::Pwm { Ok(Command::Output {
channel: 0, channel: 0,
pin: PwmPin::MaxIPos, pin: PwmPin::MaxIPos,
value: 7.0, value: 7.0,
@ -708,11 +708,11 @@ mod test {
} }
#[test] #[test]
fn parse_pwm_max_i_neg() { fn parse_output_max_i_neg() {
let command = Command::parse(b"pwm 0 max_i_neg 128"); let command = Command::parse(b"output 0 max_i_neg 128");
assert_eq!( assert_eq!(
command, command,
Ok(Command::Pwm { Ok(Command::Output {
channel: 0, channel: 0,
pin: PwmPin::MaxINeg, pin: PwmPin::MaxINeg,
value: 128.0, value: 128.0,
@ -721,11 +721,11 @@ mod test {
} }
#[test] #[test]
fn parse_pwm_max_v() { fn parse_output_max_v() {
let command = Command::parse(b"pwm 0 max_v 32768"); let command = Command::parse(b"output 0 max_v 32768");
assert_eq!( assert_eq!(
command, command,
Ok(Command::Pwm { Ok(Command::Output {
channel: 0, channel: 0,
pin: PwmPin::MaxV, pin: PwmPin::MaxV,
value: 32768.0, value: 32768.0,