DHWCtrl.APortMeasure
The selected ADC Clock is MCU Clock / 128 (i.e. 13.56 Mhz / 128)
After 13 ADC Clock Ticks the first sample will measured. 13 ADC Clock Ticks are needed for one sample:
(1 / 13.56 Mhz) * 128 * 13 = 0.123 ms
So we have each 0.123ms one sample. As reference voltage the AVR internal 2.56V is used, the results are 10 bit values, so to get the voltage in Volt use the following formula:
Vin = float(result) / 1024 * 2.56V = float(result) / 400V
Properties
- Command code: 0xE007
- Command timeout: 100 ms
- Possible status codes: General status codes, DHWCtrl.ErrUnknownPort
Parameters (request frame)
| Name | Type/Size | Description |
|---|---|---|
| Port | Integer (8 bits) | Measured port (same variable as in DHWCtrl.PortGet ) |
| Count | Integer (8 bits) | Count of taken measurements. |
Returned values (response frame)
| Name | Type/Size | Description | |
|---|---|---|---|
| Voltages | Array (until end of frame) | - | |
| Voltage | Integer (16 bits) | Voltage measured at the analog port. | |