Lines Matching +full:adc +full:- +full:use +full:- +full:external +full:- +full:triggers
10 Addresses scanned: none, address read from Super-I/O config space
24 -----------------
29 configuration for channels 1-5.
30 Legal values are in the range of 0-31. Bit 0 maps to
47 -----------
49 The VIA VT1211 Super-I/O chip includes complete hardware monitoring
52 implements 5 universal input channels (UCH1-5) that can be individually
60 connected to the PWM outputs of the VT1211 :-().
66 Sensor Voltage Mode Temp Mode Default Use (from the datasheet)
80 ------------------
82 Voltages are sampled by an 8-bit ADC with a LSB of ~10mV. The supported input
84 external scaling resistors. This external scaling needs to be compensated for
91 implementation :-) You will have to find documentation for your own
99 VccP --- --- 1.0 1400 mV [1]_
111 Each measured voltage has an associated low and high limit which triggers an
116 ----------------------
119 has a high limit which triggers an alarm if crossed. There is an associated
125 All temperature channels except temp2 are external. Temp2 is the VT1211
127 returns the temperature in millidegree Celsius. For the external channels
128 temp1 and temp3-temp7, scaling depends on the board implementation and needs
131 Temp1 is an Intel-type thermal diode which requires the following formula to
134 compute temp1 (@-Offset)/Gain, (@*Gain)+Offset
145 VIA C3 Ezra-T 73.869 0.9528
152 Temp3-temp7 support NTC thermistors. For these channels, the driver returns
153 the voltages as seen at the individual pins of UCH1-UCH5. The voltage at the
157 Vpin = 2200 * Rth / (Rs + Rth) (2200 is the ADC max limit of 2200 mV)
162 Rth = Ro * exp(B * (1 / T - 1 / To)) (To is 298.15K (25C) and Ro is the
168 compute tempx 1 / (1 / 298.15 - (` (2200 / @ - 1)) / 3435) - 273.15,
169 2200 / (1 + (^ (3435 / 298.15 - 3435 / (273.15 + @))))
173 -----------------
176 fans. Writing a 2 to any of the two pwm[1-2]_enable sysfs nodes will put the
181 Each PWM has 4 associated distinct output duty-cycles: full, high, low and
182 off. Full and off are internally hard-wired to 255 (100%) and 0 (0%),
184 pwm[1-2]_auto_point[2-3]_pwm. Each PWM output can be associated with a
185 different thermal input but - and here's the weird part - only one set of
186 thermal thresholds exist that controls both PWMs output duty-cycles. The
187 thermal thresholds are accessible via pwm[1-2]_auto_point[1-4]_temp. Note
190 the first set pwm1_auto_point[1-4]_temp is writable, the second set is
191 read-only).
194 PWM Auto Point PWM Output Duty-Cycle
196 pwm[1-2]_auto_point4_pwm full speed duty-cycle (hard-wired to 255)
197 pwm[1-2]_auto_point3_pwm high speed duty-cycle
198 pwm[1-2]_auto_point2_pwm low speed duty-cycle
199 pwm[1-2]_auto_point1_pwm off duty-cycle (hard-wired to 0)
205 pwm[1-2]_auto_point4_temp full speed temp
206 pwm[1-2]_auto_point3_temp high speed temp
207 pwm[1-2]_auto_point2_temp low speed temp
208 pwm[1-2]_auto_point1_temp off temp
212 PWM output duty-cycle based on the input temperature:
215 Thermal Threshold Output Duty-Cycle Output Duty-Cycle
218 - full speed duty-cycle full speed duty-cycle
220 - high speed duty-cycle full speed duty-cycle
222 - low speed duty-cycle high speed duty-cycle
224 - off duty-cycle low speed duty-cycle