SPI1 with DMA Overflow Issue

[LMorr.3]

I have SPI1 setup as Receive Only Slave with DMA enabled.  I send 10 bytes from SPI2 ( to simulate a full duplex master uC )  and it works well the first time I transmit 10 bytes.  When I transmit 10 bytes a second time, SPI1's overflow flag gets set just after the transmit.  It works if I set SPI1's DMA to circular mode, but not in normal mode.  The SPI receive call has the correct SIZE ( 10 bytes ).

I have the slave interrupt when the master ( SPI2 ) toggles the SS pin to high and want to 'reset' the slave's SPI1 and DMA somehow so that it continues to work on the next packet transmission.

How do I reset SPI1's so that it works for concurrent transmissions?

[RhSilicon]

HAL code may take time to perform operations. It might be interesting to use two boards to check if the behavior is the same.

[Tinnagit]

you should try to use STOP DMA and flush data in that DMA.
then START DMA again.

you should try it.

[Tinnagit]

it's about DMA mechanism that if you use incremental in normal mode, the DMA can addressing to out of size of memory that you had configured. 

[LMorr.3]

What is the correct way to stop dma, flush the data and start it up again?  Are there special commands I should use to make it work?  I read others have had issues.

I see info. about these but not sure if I should use them:

__HAL_RCC_SPI1_FORCE_RESET();

__HAL_RCC_SPI1_RELEASE_RESET();

HAL_SPI_DMAStop(&hspi1);

HAL_SPI_Init(&hspi1);

[Tinnagit]

I'm not exactly sure for spi
HAL_SPI_DMAStop(&hspi1);
and Read it 
and then HAL_SPI_DMAStart(&hspi1); again
the reinitial is unnecessary.