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pounder: add serial-only tests

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mwojcik 2024-12-16 16:21:17 +08:00
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src/hw/stabilizer_pounder.md
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@ -146,9 +146,32 @@ SMA connectors should line up with the ones from Stabilizer; no pins should be v
## Testing the Pounder
### With serial only
You need to have the Stabilizer powered on and connected through USB. Ethernet is not necessary.
Input the following sequence of commands into the shell, assuming Stabilizer serial interface is visible at /dev/ttyACM0:
```
stty 115200 -F /dev/ttyACM0
echo 'set /dual_iir/pounder/out_channel/0/dds/frequency 20e6' > /dev/ttyACM0
echo 'set /dual_iir/pounder/out_channel/0/dds/amplitude 1' > /dev/ttyACM0
echo 'set /dual_iir/pounder/out_channel/0/attenuation 16' > /dev/ttyACM0
echo 'set /dual_iir/pounder/out_channel/1/dds/frequency 30e6' > /dev/ttyACM0
echo 'set /dual_iir/pounder/out_channel/1/dds/amplitude 1' > /dev/ttyACM0
echo 'set /dual_iir/pounder/out_channel/1/attenuation 16' > /dev/ttyACM0
```
You can copy them all and input at once.
Observe a sine wave with frequency of 20MHz on channel 0 output, and 30MHz on channel 1 output.
### With MQTT (slower)
For this method, you need to set up MQTT and have the Stabilizer connected with Ethernet.
1. Set up the MQTT as described above.
2. Using Mosquitto and MQTT Explorer, set the pounder ``out_channel`` parameters:
* Frequency: 10e6 (10MHz)
* Frequency: 20e6 (20MHz)
* Amplitude: 1.0
![Pounder MQTT settings](../img/pounder_mqtt.png)
3. Repeat the procedure for the other channel.