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SPI DMA transmit during interrupt

YuriCh
Associate II
Posted on August 22, 2017 at 10:37

Hello!

I am implementing a state machine which is driven by interrupts on the STM32F437IIT6.

The interrupts occur as a result of using the HAL_SPI_Transmit_DMA() function.

While testing my program i have noticed that when i try to generate a new

HAL_SPI_Transmit_DMA

During the DMA interrupt

 it doesnt work. 

Please note that the spi-dma write i am trying to generate is on a completley different DMA. (trying to generate a dma transfer on DMA1 during an interrupt of DMA4).

Please advise on how to make this work.

thanks in advance,

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