K64F lp ticker driver - calculation bug fix. #6055
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Delta calculation from lp_ticker_set_interrupt() function: delta_us = timestamp > now_us ? timestamp - now_us : (uint32_t)((uint64_t)timestamp + 0xFFFFFFFF - now_us); Lets assume that timestam == now_us. Expected delta value should be 0 and in this current version is 0xFFFFFFFF. The following condition: timestamp > now_us should have the following form: timestamp >= now_us Additionally modified us ticker driver to provide the same logic.
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@ARMmbed/team-nxp Please review |
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/morph build |
Build : SUCCESSBuild number : 1112 Triggering tests/morph test |
Exporter Build : SUCCESSBuild number : 791 |
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Can we run morph test here again - looks like previous one was canceled. |
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/morph test |
Test : SUCCESSBuild number : 935 |
0xc0170
approved these changes
Feb 19, 2018
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Description
Issue with interrupt scheduling has been found while working on PR #6052.
Delta calculation from lp_ticker_set_interrupt() function:
mbed-os/targets/TARGET_Freescale/TARGET_MCUXpresso_MCUS/api/lp_ticker.c
Line 138 in 04f0f2b
Lets assume that
timestam==now_us.Expected delta value should be
0and in this current version is0xFFFFFFFF.The following condition:
timestamp > now_usshould have the following form:
timestamp >= now_usAdditionally modified us ticker driver to provide the same logic.
Status
READY
Migrations
NO