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| author | Keith Packard <keithp@keithp.com> | 2011-10-23 15:20:50 -0700 |
|---|---|---|
| committer | Keith Packard <keithp@keithp.com> | 2011-10-23 15:20:50 -0700 |
| commit | 90e738a3379d258a48a7c92f6708040fc39c373a (patch) | |
| tree | f8613b8bb81c6dd7be72175959bfc8c153a58f72 | |
| parent | f70553106707e3496d07eecb83f0c0a1acad7f77 (diff) | |
altos: Fix battery voltage computation.
Full scale is 4.95V, not 3.333V.
Signed-off-by: Keith Packard <keithp@keithp.com>
| -rw-r--r-- | src/cc1111/ao_battery.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/src/cc1111/ao_battery.c b/src/cc1111/ao_battery.c index 070f682f..b9845fb3 100644 --- a/src/cc1111/ao_battery.c +++ b/src/cc1111/ao_battery.c @@ -36,7 +36,7 @@ ao_battery_get(void) ADCCON3 = ADCCON3_EREF_VDD | ADCCON3_EDIV_512 | BATTERY_PIN; ao_sleep(DATA_TO_XDATA(&ao_battery_value)); ); - return (uint16_t) ((int32_t) ao_battery_value.v * (int32_t) 3333 >> 15); + return (uint16_t) ((int32_t) ao_battery_value.v * (int32_t) 4950 >> 15); } static void |