mirror of https://github.com/rene-dev/stmbl.git
87 lines
1.5 KiB
C
87 lines
1.5 KiB
C
|
#define ADC2V(a) ((a) / (ARES) * (AREF))
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
SIG
|
||
|
|
o
|
||
|
|
|
|
||
|
|
.-.
|
||
|
|
| | pu
|
||
|
|
'-'
|
||
|
|
|----o ADC
|
||
|
|
.-.
|
||
|
|
| | pd
|
||
|
|
'-'
|
||
|
|
|
|
||
|
|
===
|
||
|
|
GND
|
||
|
|
*/
|
||
|
|
#define V0(a, pd, pu) ((a) / (pd) * ((pu) + (pd)))
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
VCC
|
||
|
|
+
|
||
|
|
|
|
||
|
|
.-.
|
||
|
|
| | pu
|
||
|
|
'-'
|
||
|
|
|----o ADC
|
||
|
|
.-.
|
||
|
|
| | pm
|
||
|
|
'-'
|
||
|
|
SIG o----|
|
||
|
|
.-.
|
||
|
|
| | shunt
|
||
|
|
'-'
|
||
|
|
|
|
||
|
|
===
|
||
|
|
GND
|
||
|
|
*/
|
||
|
|
#define V1(a, vcc, pu, pm) ((a) + (pm) * ((vcc) - (a)) / (pu))
|
||
|
|
#define AMP(a, vcc, pu, pm, shunt, gain) (V2((gain) * (a), vcc, pu, pm) / (shunt))
|
||
|
|
//#define AMP(a, gain, vcc, shunt, pu, pm) (((a) / (gain) - (vcc) / ((pu) + (pm)) * (pm)) / ((shunt) * (pu)) * ((pu) + (pm)))
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
VCC
|
||
|
|
+
|
||
|
|
|
|
||
|
|
.-.
|
||
|
|
| | pu
|
||
|
|
'-'
|
||
|
|
___ |
|
||
|
|
SIG o-|___|--+----o ADC
|
||
|
|
pm |
|
||
|
|
.-.
|
||
|
|
| | pd
|
||
|
|
'-'
|
||
|
|
|
|
||
|
|
===
|
||
|
|
GND
|
||
|
|
*/
|
||
|
|
#define V2(a, vcc, pu, pm, pd) (((a) - (vcc) / ((pu) + (pd)) * (pd)) / (1.0 / (1.0 / (pu) + 1.0 / (pd))) * ((pm) + (1.0 / (1.0 / (pu) + 1.0 / (pd)))) + (vcc) / ((pu) + (pd)) * (pd))
|
||
|
|
|
||
|
|
|
||
|
|
/*
|
||
|
|
VCC
|
||
|
|
+
|
||
|
|
|
|
||
|
|
.-.
|
||
|
|
| | pu
|
||
|
|
'-'
|
||
|
|
SIG o----|
|
||
|
|
.-.
|
||
|
|
| | pm
|
||
|
|
'-'
|
||
|
|
|----o ADC
|
||
|
|
.-.
|
||
|
|
| | pd
|
||
|
|
'-'
|
||
|
|
|
|
||
|
|
===
|
||
|
|
GND
|
||
|
|
*/
|
||
|
|
#define V3(a, pm, pd) ((a) / (pd) * ((pm) + (pd)))
|
||
|
|
#define R3(a, vcc, pu, pm, pd) (V3(a, pm, pd) / ((vcc) - V3(a, pm, pd)) / (pu) - V3(a, pm, pd) / ((pm) + (pd)))
|