Wykres commitów

8 Commity (9d0525182dc926f68d73a9815c1b1abae1d69236)

Autor SHA1 Wiadomość Data
Damien George 401af50dc0 stmhal: Add pyb.irq_stats() to get statistics about IRQ calls.
Adds a lot of code, makes IRQs a bit less efficient, but is very useful
for debugging.  Usage: pyb.irq_stats() returns a memory view that can be
read and written, eg:

    list(pyb.irq_stats())
    pyb.irq_stats()[0]
    pyb.irq_stats()[0] = 0

The patch provides general IRQ_ENTER() and IRQ_EXIT() macros that can be
modified to provide further IRQ statistics if desired.
2015-12-22 21:00:20 +00:00
Damien George 22bd23114a stmhal: On SysTick IRQ, only process one DMA channel at a time.
This can be generalised if/when more processing is needed by SysTick.

Thanks to @chuckbook for the idea.
2015-11-24 15:44:16 +00:00
Damien George 522d454e34 stmhal: Small simplification of code to tickle DMA idle counter. 2015-11-24 15:44:16 +00:00
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
Dave Curtis 32b3549cce stmhal: Add symbolic #defines for interrupt levels in irq.h. 2015-11-01 23:23:39 +00:00
Dave Hylands ea8bf81058 stmhal: Replace #include "stm32f4xx_hal.h" with #include STM32_HAL_H. 2015-07-30 00:38:25 +01:00
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