驱动库Timera.c的TIMERA_CompareInit函数是否存在bug？

只看该作者 · 2021-11-3 17:59

在没有打开TimerCache时，主程序首先设置了TimeraCompare4的值，再设置TimeraCompare3的值，调用TIMERA_CompareInit函数后，红色字的语句会把TimeraCompare3会赋值到TimeraCompare4，导致波形出错，红色的语句加上判断Cache是否打开语句后可恢复正常

en_result_t TIMERA_CompareInit(M4_TMRA_TypeDef *TIMERAx, en_timera_channel_t enChannel,
                           const stc_timera_compare_init_t *pstcCompareInit)
{
en_result_t enRet = ErrorInvalidParameter;
__IO stc_tmra_pconr_field_t *pstcTimeraPort;
__IO stc_tmra_bconr_field_t *pstcTimeraCache;
__IO stc_tmra_cmpar_field_t *pstcTimeraCompare;
__IO stc_tmra_cconr_field_t *pstcTimeraCapture;

/* Check parameters */
if(IS_VALID_NORMAL_TIMERA_UNIT(TIMERAx) && (NULL != pstcCompareInit))
{
      DDL_ASSERT(IS_VALID_NORMAL_TIMERA_CHANNEL(enChannel));
      DDL_ASSERT(IS_VALID_COUNT_START_OUTPUT(pstcCompareInit->enStartCountOutput));
      DDL_ASSERT(IS_VALID_COUNT_STOP_OUTPUT(pstcCompareInit->enStopCountOutput));
      DDL_ASSERT(IS_VALID_COMPARE_MATCH_OUTPUT(pstcCompareInit->enCompareMatchOutput));
      DDL_ASSERT(IS_VALID_PERIOD_MATCH_OUTPUT(pstcCompareInit->enPeriodMatchOutput));
      DDL_ASSERT(IS_VALID_SPECIFY_OUTPUT_STATUS(pstcCompareInit->enSpecifyOutput));
      DDL_ASSERT(IS_FUNCTIONAL_STATE(pstcCompareInit->enCacheEn));
      DDL_ASSERT(IS_FUNCTIONAL_STATE(pstcCompareInit->enTriangularCrestTransEn));
      DDL_ASSERT(IS_FUNCTIONAL_STATE(pstcCompareInit->enTriangularTroughTransEn));

      /* Configure port control register */
      pstcTimeraPort = (stc_tmra_pconr_field_t *)TIMERA_CALC_REG_ADDR(TIMERAx->PCONR1, enChannel);
      pstcTimeraPort->STAC = pstcCompareInit->enStartCountOutput;
      pstcTimeraPort->STPC = pstcCompareInit->enStopCountOutput;
      pstcTimeraPort->CMPC = pstcCompareInit->enCompareMatchOutput;
      pstcTimeraPort->PERC = pstcCompareInit->enPeriodMatchOutput;
      pstcTimeraPort->FORC = pstcCompareInit->enSpecifyOutput;

      /* Configure cache control register */
      if ((TimeraCh1 == enChannel) || (TimeraCh3 == enChannel) ||
         (TimeraCh5 == enChannel) || (TimeraCh7 == enChannel))
      {
         pstcTimeraCache = (stc_tmra_bconr_field_t *)TIMERA_CALC_REG_ADDR(TIMERAx->BCONR1, enChannel);
         pstcTimeraCache->BSE0 = pstcCompareInit->enTriangularCrestTransEn;
         pstcTimeraCache->BSE1 = pstcCompareInit->enTriangularTroughTransEn;
         pstcTimeraCache->BEN = pstcCompareInit->enCacheEn;
         /* Configure compare cache value register */
         pstcTimeraCompare = (stc_tmra_cmpar_field_t *)TIMERA_CALC_REG_ADDR(TIMERAx->CMPAR1, enChannel + 1);
         pstcTimeraCompare->CMP = pstcCompareInit->u16CompareCacheVal;
      }

      /* Configure compare value register */
      pstcTimeraCompare = (stc_tmra_cmpar_field_t *)TIMERA_CALC_REG_ADDR(TIMERAx->CMPAR1, enChannel);
      pstcTimeraCompare->CMP = pstcCompareInit->u16CompareVal;

      /* Set compare output function */
      pstcTimeraCapture = (stc_tmra_cconr_field_t *)TIMERA_CALC_REG_ADDR(TIMERAx->CCONR1, enChannel);
      pstcTimeraCapture->CAPMD = 0u;
      enRet = Ok;
}

return enRet;
}

只看该作者 · 2021-11-7 17:12

坐等原厂来解答

只看该作者 · 2021-11-7 18:52

貌似是有问题

只看该作者 · 2021-11-8 14:58

你最好自己单步仿真跑一下，我用了CH5和CH6这两个通道单步跑，没有发现你说的这种情况，当然我都是没有开启CACHE功能的