On Mon, Jul 4, 2022 at 7:23 PM Marcus Folkesson <marcus.folkesson@xxxxxxxxx> wrote: > > Add support for setting the Programmable Gain Amplifiers by adjust the > scale value. ... > +#define MCP3911_GAIN_MASK(ch) (0x7 << 3 * ch) GENMASK() ... > + /* > + * For 24bit Conversion 24-bit > + * Raw = ((Voltage)/(Vref) * 2^23 * Gain * 1.5 > + * Voltage = Raw * (Vref)/(2^23 * Gain * 1.5) > + * > + * ref = Reference voltage > + * div = (2^23 * 1.5 * gain) = 12582912 * gain > + */ ... > + /* Set gain to a known value (1) */ What is '(1)'? In parentheses we usually refer to something like a formula somewhere. -- With Best Regards, Andy Shevchenko
