suspect-devices/circuitpython/stmhal/spi.c, branch v1.5.1CircuitPython - a Python implementation for teaching coding with microcontrollershttps://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=v1.5.12015-10-31T16:14:30+00:00all: Add py/mphal.h and use it in all ports.2015-10-31T16:14:30+00:00Damien Georgedamien.p.george@gmail.com2015-10-30T23:03:58+00:00urn:sha1:731f359292c0e2630873df1a19c5baac7287024f
py/mphal.h contains declarations for generic mp_hal_XXX functions, such
as stdio and delay/ticks, which ports should provide definitions for. A
port will also provide mphalport.h with further HAL declarations.
stmhal: Use polling, not DMA, for 1 byte SPI transfers.2015-09-15T19:45:37+00:00Damien Georgedamien.p.george@gmail.com2015-09-15T19:45:37+00:00urn:sha1:d80174d7c3fe36f139c639d6a820cc4cbb88ddf9
There is an issue sending 1 byte on the SPI bus using DMA, but it only
occurs when the transmit is done for the first time after initialising
the SPI and DMA peripherals. All other cases (sending 2 or more bytes,
doing send_recv, doing recv first) work okay. We sidestep this issue by
using polling (not DMA) for all 1 byte transfers. This is fine because
a 1 byte transfer can't be interrupted and doesn't need the benefits of
DMA (and using polling for this case is more efficient).
Resolves #1456.
stmhal: Fix hardfault when configured as a SPI slave2015-08-05T22:42:05+00:00Dave Hylandsdhylands@gmail.com2015-08-05T06:36:01+00:00urn:sha1:8a1a5c236d1fc07596a1f23f73e26f24c0e5b540stmhal: Enable SPI support for F7 MCUs.2015-08-05T22:38:49+00:00Dave Hylandsdhylands@gmail.com2015-08-05T05:50:56+00:00urn:sha1:5e11d2b349bffe92c539649799b27c946c2ff17bstmhal: Factor GPIO clock enable logic into mp_hal_gpio_clock_enable.2015-08-02T23:14:48+00:00Damien Georgedamien.p.george@gmail.com2015-08-02T23:05:16+00:00urn:sha1:0851751615580d02bd6f841e13651923f05fde59
Extracted GPIO clock enable logic into mp_hal_gpio_clock_enable
and called from anyplace which might need to use GPIO functions
on ports other than A-D.
Thanks to Dave Hylands for the patch.
stmhal: Add STM32F7DISC and associated changes.2015-07-29T23:38:32+00:00Dave Hylandsdhylands@gmail.com2015-07-28T18:13:33+00:00urn:sha1:92d4b51ad5d828930334f87d9619a78b5877a384stmhal/dma.c: Modify dma_init() to accept init struct as an argument2015-06-24T16:48:52+00:00blmorrisbryan.morrissey@gmail.com2015-06-22T13:24:59+00:00urn:sha1:c5175526dda06d278dd569dd7bfce0c65cbbe5fc
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.
stmhal: Factor out DMA initialisation code from spi.c.2015-06-10T13:01:44+00:00Damien Georgedamien.p.george@gmail.com2015-06-10T12:06:48+00:00urn:sha1:3d30d605f5286774edb7669f3958628e5c656048
This is so that the DMA can be shared by multiple peripherals.
stmhal: Fix slow SPI DMA transfers by removing wfi from DMA wait loop.2015-06-03T22:20:23+00:00Damien Georgedamien.p.george@gmail.com2015-06-03T22:20:23+00:00urn:sha1:53a8aeb6e7a89ad169ad3f9e5553d51fb86c03b8
Addresses issue #1268.
stmhal: Fix off-by-one error when checking for valid I2C and SPI bus.2015-05-28T10:05:44+00:00Damien Georgedamien.p.george@gmail.com2015-05-28T10:05:44+00:00urn:sha1:17d9b5006dc8dc585de6c52abfb1a65487e0d16d