HAL
HAL_SAI_ERROR_UDR is only used within HAL.
 
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CodeScopeSTM32 Libraries and SamplesHALHAL_SAI_ERROR_UDR

HAL_SAI_ERROR_UDR macro

Underrun error

Syntax

#define HAL_SAI_ERROR_UDR 0x00000002U

References

LocationText
stm32f4xx_hal_sai.h:277
#define HAL_SAI_ERROR_UDR 0x00000002U /*!< Underrun error */
stm32f4xx_hal_sai.c:1622
tmperror = ((hsai->State == HAL_SAI_STATE_BUSY_RX) ? HAL_SAI_ERROR_OVR : HAL_SAI_ERROR_UDR);