readme: add details
parent
c467b9a1b9
commit
94ecfc53ea
263
README.md
263
README.md
|
|
@ -4,43 +4,254 @@ RF signal generator using Urukul, Humpback and STM32 NUCLEO-H743ZI2
|
|||
|
||||
## Nix commands
|
||||
|
||||
Open nix shell before anything.
|
||||
```bash
|
||||
Start nix shell before anything.
|
||||
```shell
|
||||
nix-shell
|
||||
```
|
||||
|
||||
Start OpenOCD server in unblocking mode.
|
||||
```bash
|
||||
run-openocd
|
||||
Flash firmware onto STM32 NUCLEO-H743ZI2 using OpenOCD.
|
||||
```shell
|
||||
openocd -f openocd/openocd.cfg -f openocd/main.cfg
|
||||
```
|
||||
|
||||
Start OpenOCD server in blocking mode, for console print through semihosting.
|
||||
```bash
|
||||
run-openocd-block
|
||||
Alternatively, an equivalent Nix command can also do the work
|
||||
```shell
|
||||
openocd-flash main
|
||||
```
|
||||
|
||||
Reset STM32 flash before flashing bitstream for Humpback FPGA.
|
||||
```bash
|
||||
reset-flash
|
||||
## Networking Setup
|
||||
At the moment, both IP addresses of the STM32 board and MQTT broker are hardcoded.
|
||||
MAC address of the STM32 board is also hardcoded.
|
||||
|
||||
### STM32 IP Address
|
||||
IP address is hardcoded in the file `src/main.rs`, line 171.
|
||||
```rust
|
||||
store.ip_addrs[0] = net::wire::IpCidr::new(net::wire::IpAddress::v4(192, 168, 1, 200), 24);
|
||||
```
|
||||
The IP address shown above corresponds to `192.168.1.200`, in a `/24` address block.
|
||||
Modify this line to the change the IP address of STM32 board.
|
||||
|
||||
### STM32 MAC Address
|
||||
IP address is hardcoded in the file `src/main.rs`, line 156.
|
||||
```rust
|
||||
let mac_addr = net::wire::EthernetAddress([0xAC, 0x6F, 0x7A, 0xDE, 0xD6, 0xC8]);
|
||||
```
|
||||
The MAC address shown above corresponds to `AC::6F::7A::DE::D6::C8`.
|
||||
Modify this line to the change the MAC address of STM32 board.
|
||||
|
||||
### Broker IP Address
|
||||
IP address is hardcoded in the file `src/main.rs`, line 241.
|
||||
```rust
|
||||
IpAddr::V4(Ipv4Addr::new(192, 168, 1, 125)),
|
||||
```
|
||||
This program will try attempt to connect to `192.168.1.125:1883`.
|
||||
Modify this line to the change the IP address of MQTT broker.
|
||||
Note that the broker must accept TCP connection at `port 1883`.
|
||||
|
||||
## MQTT Broker
|
||||
Mosquitto is within the Nix package.
|
||||
Starting a Mosquitto MQTT broker can be as simple as the following line.
|
||||
```shell
|
||||
mosquitto
|
||||
```
|
||||
The MQTT broker will be started locally, at port 1883.
|
||||
|
||||
To enable feedback from the device, subscribe to all subtopics under `Urukul/Feedback` on a separate terminal.
|
||||
```shell
|
||||
mosquitto_sub -h <broker ip address> -t Urukul/Feedback/#
|
||||
```
|
||||
Note that subscription to the feedback topic is completely optional.
|
||||
|
||||
|
||||
## Publishing MQTT messages through Mosquitto
|
||||
Controlling Humpback-DDS can be achieved by sending specific MQTT commands through Mosquitto. The device will listen to all publishes that are under the `Urukul/Control` or `/Urukul/Control` topic. A MQTT message can be published by the following command.
|
||||
```shell
|
||||
mosquitto_pub -h <broker ip address> -t <topic> -m <message>
|
||||
```
|
||||
For example, to publish a local MQTT broker, with the topic of `Foo/Bar` and `Baz` as the message, enter this command.
|
||||
```shell
|
||||
mosquitto_pub -h localhost -t Foo/Bar -m "Baz"
|
||||
```
|
||||
Note that MQTT topics are case-sensitive.
|
||||
Alternatively, the following nix command provided by the shell simplify the syntax.
|
||||
```shell
|
||||
publish-mqtt <topic> <message>
|
||||
```
|
||||
This will send the MQTT message to a local MQTT broker at port 1883, with specified topic and message. The example above can be simplified into:
|
||||
```shell
|
||||
publish-mqtt Foo/Bar "baz"
|
||||
```
|
||||
|
||||
Load bitstream to Humpback FPGA.
|
||||
```bash
|
||||
configure-fpga
|
||||
```
|
||||
## List of Commands
|
||||
All currently supported commands are listed below.
|
||||
**Note: The following table only lists the subtopic. To make a full topic, add `Urukul/Control` in front of all subtopics.**
|
||||
Example: Full topic of Reset command: `Urukul/Control/Reset`.
|
||||
| Subtopic| Message| Functionality|
|
||||
| ---| ---| ---|
|
||||
| `Reset`| | Reset the device|
|
||||
| `ChannelX/Switch`| `<off/on>`| Turn off/on the RF switch at channel X.|
|
||||
| `ChannelX/Attenuation`| `<atten> [dB]`| Set attenuation of channel X.|
|
||||
| `Clock/Source`| `<clk_src>`| Select the clock source of Urukul.|
|
||||
| `Clock/Frequency`| `<f_clk> [unit]`| Set the clock frequency of the clock source of Urukul.|
|
||||
| `Clock/Source`| `<clk_div>`| Set the clock division of Urukul.|
|
||||
| `Clock`| `frequency: <f_clk> [unit], source: <clk_src>, division: <clk_div>`| Setup the clock tree for Urukul.|
|
||||
| `ChannelX/SystemClock`| `<f_sys_clk> [unit]`| Set the system clock frequency of channel X.|
|
||||
| `ChannelX/ProfileY/Singletone/Frequency`| `<freq> [unit]`| Setup a single tone profile at channel X, profile Y, with frequency `<freq> [unit]`.|
|
||||
| `ChannelX/ProfileY/Singletone/Amplitude`| `<ampl>`| Setup a single tone profile at channel X, profile Y, with amplitude factor `<ampl>`.|
|
||||
| `ChannelX/ProfileY/Singletone/Phase`| `<phase> [deg]`| Setup a single tone profile at channel X, profile Y, with phase `<phase> [deg]`.|
|
||||
| `ChannelX/ProfileY/Singletone`| `frequency: <freq> [unit], amplitude: <ampl>, phase: <phase>`| Setup a compelte single tone profile at channel X, profile Y.|
|
||||
| `Profile`| `<pr_num>`| Switch to a DDS profile across all channels.|
|
||||
|
||||
Verify a proper bitstream is loaded to STM32 flash.
|
||||
```bash
|
||||
verify-fpga-config
|
||||
```
|
||||
## Reset the device
|
||||
- Topic: `Urukul/Control/Reset`
|
||||
- Message: (Don't care)
|
||||
|
||||
Run a Ethernet server with TCP socket examples.
|
||||
```bash
|
||||
run-ethernet-server
|
||||
The `Reset` command resets the device. The effects are:
|
||||
- Turn off all RF switches.
|
||||
- Set attenuations to be 31.5 dB for all attenuators.
|
||||
- Set Urukul clock source to be the internal oscillator, with 100MHz.
|
||||
- Set Urukul clock divider to 4.
|
||||
- Reset all 4 DDS chips.
|
||||
### Example
|
||||
```shell
|
||||
publish-mqtt Urukul/Control/Reset
|
||||
```
|
||||
This resets the device.
|
||||
|
||||
Select a different gdb config file from ```gdb_config``` directory.
|
||||
```bash
|
||||
set-gdb-config-file <filename>
|
||||
## RF Switch
|
||||
- Topic: `Urukul/Control/Channel<ch_num>/Switch`
|
||||
- ch_num: The channel number, from 0 to 3.
|
||||
- Message: `<off/on>`
|
||||
|
||||
This command turns off/on an RF switch of a channel.
|
||||
### Example
|
||||
```shell
|
||||
publish-mqtt Urukul/Control/Channel0/Switch "on"
|
||||
```
|
||||
Leave <filename> as blank for default openocd.gdb configuration.
|
||||
This turns on the channel 0 RF switch.
|
||||
|
||||
## Attenuator
|
||||
- Topic: `Urukul/Control/Channel<ch_num>/Attenuator`
|
||||
- ch_num: The channel number, from 0 to 3.
|
||||
- Message: `<atten> [dB]`
|
||||
- atten: Attenuation of the attenuator of the specified channel. The unit dB is optional. Valid attenuation is within [0, 31.5] (inclusive) in decibel.
|
||||
|
||||
### Example
|
||||
```shell
|
||||
publish-mqtt Urukul/Control/Channel0/Attenuator "20 dB"
|
||||
```
|
||||
This sets the attenuation of the channel 0 attenuator to be 20 dB.
|
||||
|
||||
## Urukul Clock Tree
|
||||
1. Clock Frequency
|
||||
- Topic: `Urukul/Control/Clock/Frequency`
|
||||
- Message: `<f_clk> [unit]`
|
||||
- f_clk: Clock frequency of the Urukul clock source.
|
||||
- unit: **(Optional)** Unit of f_clk, supports `Hz`, `kHz`, `MHz`, `GHz`. `Hz` if unspecified.
|
||||
### Example
|
||||
```shell
|
||||
publish-mqtt Urukul/Control/Clock/Frequency "100 MHz"
|
||||
```
|
||||
This sets the clock frequency of Urukul to be 100 MHz.
|
||||
|
||||
2. Clock Source
|
||||
- Topic: `Urukul/Control/Clock/Source`
|
||||
- Message: `<clk_src>`
|
||||
- clk_src: Clock source of Urukul. It can only be `OSC`, `MMCX` and `SMA`.
|
||||
### Example
|
||||
```shell
|
||||
publish-mqtt Urukul/Control/Clock/Source "OSC"
|
||||
```
|
||||
This sets the clock source of Urukul to be the internal oscillator.
|
||||
(Note: The internal oscillator should have a frequency of 100MHz, though this command does not setup the clock frequency.)
|
||||
|
||||
3. Clock Frequency Division
|
||||
- Topic: `Urukul/Control/Clock/Division`
|
||||
- Message: `<clk_div>`
|
||||
- clk_div: Clock frequency division of Urukul. It can only be 1, 2, or 4.
|
||||
### Example
|
||||
```shell
|
||||
publish-mqtt Urukul/Control/Clock/Division "4"
|
||||
```
|
||||
This divides the clock frequency of Urukul by a factor of 4.
|
||||
|
||||
4. Clock Overall Setup
|
||||
- Topic: `Urukul/Control/Clock`
|
||||
- Message: `frequency: <f_clk> [unit], source: <clk_src>, division: <clk_div>`
|
||||
- f_clk, unit, clk_src, clk_div: Same as above.
|
||||
- Argument can be permutated.
|
||||
### Example
|
||||
```shell
|
||||
publish-mqtt Urukul/Control/Clock "source: OSC, frequency: 100 MHz, division: 4"
|
||||
```
|
||||
This is identical to the 3 examples above.
|
||||
|
||||
## DDS System Clock Frequency
|
||||
- Topic: `Channel<ch_num>/SystemClock`
|
||||
- Message: `<f_sys_clk> [unit]`
|
||||
- f_sys_clk: DDS System Clock frequency a channel.
|
||||
- unit: **(Optional)** Unit of f_clk, supports `Hz`, `kHz`, `MHz`, `GHz`. `Hz` if unspecified.
|
||||
### Example
|
||||
```shell
|
||||
publish-mqtt Urukul/Control/Chammel1/SystemClock "1 GHz"
|
||||
```
|
||||
This sets the system clock frequency of channel 1 to 1 GHz.
|
||||
|
||||
## Single Tone Profile
|
||||
1. Single Tone Frequency
|
||||
- Topic: `Urukul/Control/Channel<ch_num>/Profile<pr_num>/Singletone/Frequency`
|
||||
- ch_num: Channel number.
|
||||
- pr_num: Profile number.
|
||||
- Message: `<freq> [unit]`
|
||||
- freq: Output frequency of the DDS single tone profile.
|
||||
- unit: **(Optional)** Unit of freq, supports `Hz`, `kHz`, `MHz`, `GHz`. `Hz` if unspecified.
|
||||
### Example
|
||||
```shell
|
||||
publish-mqtt Urukul/Control/Channel1/Profile2/Singletone/Frequency "3 MHz"
|
||||
```
|
||||
This sets the output frequency of the single tone profile at channel 1, profile 2 to be 3 MHz.
|
||||
|
||||
2. Single Tone Amplitude
|
||||
- Topic: `Urukul/Control/Channel<ch_num>/Profile<pr_num>/Singletone/Amplitude`
|
||||
- ch_num: Channel number.
|
||||
- pr_num: Profile number.
|
||||
- Message: `<ampl>`
|
||||
- ampl: Amplitude factor of the single tone profile. It ranges from 0 to 1 inclusive.
|
||||
### Example
|
||||
```shell
|
||||
publish-mqtt Urukul/Control/Channel1/Profile2/Singletone/Amplitude "0.5"
|
||||
```
|
||||
This sets the output amplitude factor of the single tone profile at channel 1, profile 2 to be 0.5.
|
||||
|
||||
3. Single Tone Phase
|
||||
- Topic: `Urukul/Control/Channel<ch_num>/Profile<pr_num>/Singletone/Phase`
|
||||
- ch_num: Channel number.
|
||||
- pr_num: Profile number.
|
||||
- Message: `<phase>`
|
||||
- phase: Phase of the single tone profile. The unit is in degree.
|
||||
- deg: **Optional** Specifies the unit of phase to be degree.
|
||||
### Example
|
||||
```shell
|
||||
publish-mqtt Urukul/Control/Channel1/Profile2/Singletone/Degree "0.0 deg"
|
||||
```
|
||||
This sets the phase of the single tone profile at channel 1, profile 2 to be 0 degree.
|
||||
|
||||
4. Single Tone Overall Setup
|
||||
- Topic: `Urukul/Control/Channel<ch_num>/Profile<pr_num>/Singletone`
|
||||
- Message: `frequency: <freq> [unit], amplitude: <ampl>, phase: <phase>`
|
||||
- All parameters are the same as above commands.
|
||||
- Argument can be permutated.
|
||||
### Example
|
||||
```shell
|
||||
publish-mqtt Urukul/Control/Clock "frequency: 3 MHz, phase: 0.0 deg, amplitude: 0.5"
|
||||
```
|
||||
This is identical to the 3 examples above.
|
||||
|
||||
## Switching DDS Profile
|
||||
- Topic: `Urukul/Control/Profile`
|
||||
- Message: `<profile>`
|
||||
### Example
|
||||
```shell
|
||||
publish-mqtt Urukul/Control/Profile "5"
|
||||
```
|
||||
This is selects profile 5 for all DDS channels.
|
||||
Loading…
Reference in New Issue