AnsweredAssumed Answered

STM32L152xD: SPI+DMA transfer with IO trigger

Question asked by prutek.belolo on Oct 14, 2013
Latest reply on Oct 15, 2013 by prutek.belolo
I'm new to STM32 so please help :)
Is that possible to trigger SPI+DMA transfer from GPIO? I have RM0038 document and on "DMA1 request mapping" (page 213) diagram there are no GPIO pins. I assume that SPIx_RX and SPIx_TX are received/transmitted flags used to advance transfer but how can I trigger whole transaction?

I'd like to use /DATA_READY (active low) signal from external ADC to read data packet (14 bytes) by hardware.