Rabbit BL2100, Руководство пользователя, Страница: 56 / 135

50 Smartcat (BL2100)
4.4.5 D/A Converter Outputs
The functions in this section apply only to the BL2100 and the BL2120 models.
Calibrates the response of the D/A converter channel desired as a linear function using the two conver-
sion points provided. Gain and offset constants are calculated and placed into global table
_dacCalib
.
PARAMETERS
channel
is the D/A converter output channel (0–3).
value1
is the first D/A converter value (0–4095).
volts1
is the voltage corresponding to the first D/A converter value (0 V to +10 V).
value2 is the second D/A converter value (0–4095).
volts2 is the voltage corresponding to the second D/A converter value (0 V to +10 V).
RETURN VALUE
0 if sucessful.
-1 if not able to make calibration constants.
SEE ALSO
anaOut, anaOutVolts, brdInit
int anaOutCalib(int channel, int value1,
float volts1, int value2, float volts2);