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drivers: can: Fix sample point calculation

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CAN_SYNC_SEG and ts1 are in common units. Both need to be scaled by 1000
to calculate the sample point.

Signed-off-by: Andriy Gelman <andriy.gelman@gmail.com>
This commit is contained in:
Andriy Gelman 2021-02-14 11:58:26 -05:00 • committed by Anas Nashif
commit c348a05d5a
1 changed files with 1 additions and 1 deletions
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2
drivers/can/can_common.c
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@ -175,7 +175,7 @@ static int update_sampling_pnt(uint32_t ts, uint32_t sp, struct can_timing *res,
res->phase_seg1 = ts1 - res->prop_seg; res->phase_seg1 = ts1 - res->prop_seg;
res->phase_seg2 = ts2; res->phase_seg2 = ts2;
sp_calc = (CAN_SYNC_SEG + ts1 * 1000) / ts; sp_calc = (CAN_SYNC_SEG + ts1) * 1000 / ts;
return sp_calc > sp ? sp_calc - sp : sp - sp_calc; return sp_calc > sp ? sp_calc - sp : sp - sp_calc;
} }