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STM32F373 Overrun error with SDADC using DMA

Question asked by conner.gary on Jun 6, 2013
Latest reply on Jun 6, 2013 by baird.hal.001
I am using the both SDADCs configured as follows:
3 channels configured for injected conversions
SDADC2 triggered when SDADC1 is triggered
SDADC1 triggered from timer configured for 200 usec
Both SDADC1 and 2 configured to transfer data via DMA.

All appears to function properly except that random Overrun errors occur anywhere from 2 seconds to 2 minutes apart.  (Timing determined using the ITM trace feature with timestamps.)

Anyone have any idea why overrun error would occur when using DMA?