10 Addresses scanned: none
12 Datasheet: Publicly available at the Lattice website
14 http://www.latticesemi.com/
16 Author: Scott Kanowitz <scott.kanowitz@gmail.com>
21 This driver supports the Lattice POWR1220AT8 chip. The POWR1220
22 includes voltage monitoring for 14 inputs as well as trim settings
23 for output voltages and GPIOs. This driver implements the voltage
24 monitoring portion of the chip.
26 Voltages are sampled by a 12-bit ADC with a step size of 2 mV.
27 An in-line attenuator allows measurements from 0 to 6 V. The
28 attenuator is enabled or disabled depending on the setting of the
29 input's max value. The driver will enable the attenuator for any
30 value over the low measurement range maximum of 2 V.
32 The input naming convention is as follows:
34 ============== ========
36 ============== ========
51 ============== ========
53 The ADC readings are updated on request with a minimum period of 1s.