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LM78 comment cleanups

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This commit is contained in:
RichardG867
2020-11-10 21:44:14 -03:00
parent d4c6feed3a
commit 10d426f2a6
1 changed files with 6 additions and 6 deletions
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12
src/device/hwm_lm78.c
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@@ -42,8 +42,8 @@
#define CLAMP(a, min, max) (((a) < (min)) ? (min) : (((a) > (max)) ? (max) : (a)))
#define LM78_RPM_TO_REG(r, d) ((r) ? CLAMP(1350000 / (r * d), 1, 255) : 0)
#define LM78_VOLTAGE_TO_REG(v) ((v) >> 4)
#define LM78_NEG_VOLTAGE(v, r) (v * (604.0 / ((double) r)))
#define LM78_NEG_VOLTAGE2(v, r) (((3600 + v) * (((double) r) / (((double) r) + 56.0))) - v)
#define LM78_NEG_VOLTAGE(v, r) (v * (604.0 / ((double) r))) /* negative voltage formula from the W83781D datasheet */
#define LM78_NEG_VOLTAGE2(v, r) (((3600 + v) * (((double) r) / (((double) r) + 56.0))) - v) /* negative voltage formula from the W83782D datasheet */
typedef struct {
@@ -510,10 +510,10 @@ lm78_init(const device_t *info)
3300, /* +3.3V */
RESISTOR_DIVIDER(5000, 11, 16), /* +5V (divider values bruteforced) */
RESISTOR_DIVIDER(12000, 28, 10), /* +12V (28K/10K divider suggested in the W83781D datasheet) */
LM78_NEG_VOLTAGE(12000, 2100), /* -12V (Rf/Rin negative voltage formula from the W83781D datasheet) */
LM78_NEG_VOLTAGE(5000, 909), /* -5V (Rf/Rin negative voltage formula from the W83781D datasheet) */
LM78_NEG_VOLTAGE(12000, 2100), /* -12V */
LM78_NEG_VOLTAGE(5000, 909), /* -5V */
RESISTOR_DIVIDER(5000, 51, 75), /* W83782D only: +5VSB (5.1K/7.5K divider suggested in the datasheet) */
3000 /* W83782D only: VBAT */
3000 /* W83782D only: Vbat */
}
};
@@ -522,7 +522,7 @@ lm78_init(const device_t *info)
/* different -12V Rin value for AS99127F (bruteforced) */
defaults.voltages[5] = LM78_NEG_VOLTAGE(12000, 2400);
} else if (dev->local & LM78_W83782D) {
/* different negative voltage formula for W83782D (from the datasheet) */
/* W83782D uses a different negative voltage formula */
defaults.voltages[5] = LM78_NEG_VOLTAGE2(12000, 232);
defaults.voltages[6] = LM78_NEG_VOLTAGE2(5000, 120);
}