3 Commits

Author	SHA1	Message	Date
Dave Hylands	b677f03407	stmhal: Turn off DMA clocks when idle for 100 msec ... Turning on each DMA block increases the current consumption by about 8 mA. This code adds an idle timer for each DMA block and turns off the clocks when no streams are in use for 128 msec. Having a small timeout allows for improved performance when back-to-back transfers are being performed. The 128 msec is basically a guess.	2015-11-24 09:37:25 +00:00
blmorris	c5175526dd	stmhal/dma.c: Modify dma_init() to accept init struct as an argument ... This removes hard-coded DMA init params from dma_init(), instead defining these parameters in a DMA_InitTypeDef struct that gets passed as an argument to dma_init() This makes dma_init more generic so it can be used for I2S and SD Card, which require different initialization parameters.	2015-06-24 17:48:52 +01:00
Damien George	3d30d605f5	stmhal: Factor out DMA initialisation code from spi.c. ... This is so that the DMA can be shared by multiple peripherals.	2015-06-10 14:01:44 +01:00