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lis2dw driver: add note to fix acceleration reading

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This commit is contained in:
joeycastillo 2024-10-22 07:03:10 -04:00
parent 13d98ef5c9
commit be68857cb0
1 changed files with 5 additions and 0 deletions
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5
watch-library/shared/driver/lis2dw.c
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@ -76,6 +76,11 @@ lis2dw_reading_t lis2dw_get_raw_reading(void) {
lis2dw_acceleration_measurement_t lis2dw_get_acceleration_measurement(lis2dw_reading_t *out_reading) { lis2dw_acceleration_measurement_t lis2dw_get_acceleration_measurement(lis2dw_reading_t *out_reading) {
lis2dw_reading_t reading = lis2dw_get_raw_reading(); lis2dw_reading_t reading = lis2dw_get_raw_reading();
/// FIXME: We should stash the range in a static variable to avoid reading this every time, but
/// I'm not sure the values cribbed from Adafruit's LID3DH driver are right for the LIS2DW.
/// In particular, we have a 12 and a 14 bit mode, and I'm not sure why the value for 16g is 48.
/// Just making a note of this before moving on; we don't currently need to read acceleration
/// values over the bus, but once we do, this will need to be fixed.
uint8_t range = lis2dw_get_range(); uint8_t range = lis2dw_get_range();
if (out_reading != NULL) *out_reading = reading; if (out_reading != NULL) *out_reading = reading;