suspect-devices/circuitpython/stmhal/dac.c, branch esp-extra-scriptsCircuitPython - a Python implementation for teaching coding with microcontrollershttps://git.suspectdevices.com/suspect-devices/circuitpython/atom?h=esp-extra-scripts2016-05-31T10:10:35+00:00stmhal/dac: DAC deinit() method added.2016-05-31T10:10:35+00:00Peter Hinchpeter@hinch.me.uk2016-05-26T06:39:04+00:00urn:sha1:641300dccb0a68e4ede07323aabeed564a892a8fstmhal: L4: Adapt DMA to be able to support STM32L4 MCU series.2016-05-05T13:51:20+00:00Tobias Badertscherpython@baerospace.ch2016-03-22T10:28:35+00:00urn:sha1:e64032d6fdeb079de2ace20b64899d1ceb6754f1
The main thing is to change the DMA code in a way that the structure
DMA_Stream_TypeDef (which is similar to DMA_Channel_TypeDef on stm32l4)
is no longer used outside of dma.c, as this structure only exists for the
F4 series. Therefore I introduced a new structure (dma_descr_t) which
handles all DMA specific stuff for configuration. Further the periphery
(spi, i2c, sdcard, dac) does not need to know the internals of the dma.
py: Change first arg of type.make_new from mp_obj_t to mp_obj_type_t*.2016-01-11T00:49:27+00:00Damien Georgedamien.p.george@gmail.com2016-01-03T15:55:55+00:00urn:sha1:5b3f0b7f39bd67cc9182993c288f09f67a0890df
The first argument to the type.make_new method is naturally a uPy type,
and all uses of this argument cast it directly to a pointer to a type
structure. So it makes sense to just have it a pointer to a type from
the very beginning (and a const pointer at that). This patch makes
such a change, and removes all unnecessary casting to/from mp_obj_t.
stmhal: Put all DMA channel & stream definitions in dma.h2015-12-02T22:55:57+00:00Dave Hylandsdhylands@gmail.com2015-12-01T08:42:47+00:00urn:sha1:0077958ad0d278c87620ee8ead9a9aea80f1663dstmhal: Allow to set bits resolution for DAC; 8 is default, can have 12.2015-10-13T13:33:04+00:00Damien Georgedamien.p.george@gmail.com2015-10-13T13:33:04+00:00urn:sha1:b5c43be135dc4b9e75fda771935445589e761b12
This patch allows to configure the DAC resolution in the constructor and
in the init function, eg:
dac = DAC(1, bits=12).
The default resolution is 8 bits for backwards compatibility. The bits
sets the maximum value accepted by write and write_timed methods, being
2**bits - 1.
When using write_timed with 12-bit resolution, the input buffer is
treated as an unsigned half-word array, typecode 'H'.
See PR #1130 for discussion.
stmhal: Replace #include "stm32f4xx_hal.h" with #include STM32_HAL_H.2015-07-29T23:38:25+00:00Dave Hylandsdhylands@gmail.com2015-07-28T15:36:26+00:00urn:sha1:ea8bf8105812b36fbf1596a78c6e14aa0a0c5a36stmhal: Allow ADC.read_timed to take Timer object in place of freq.2015-07-22T18:41:13+00:00Damien Georgedamien.p.george@gmail.com2015-07-22T18:37:21+00:00urn:sha1:7693ef3bd6e4456105c86909174a00f535a19261
This allows a user-specified Timer for the triggering of the ADC read,
mirroring the new behaviour of DAC.write_timed.
Addresses issue #1129.
stmhal: Allow DAC.write_timed to take Timer object in place of freq.2015-07-21T22:39:49+00:00Damien Georgedamien.p.george@gmail.com2015-07-21T22:37:45+00:00urn:sha1:abc24c187614e358faa10ed6a3e239151f70b9f8
This allows the DAC to use a user-specified Timer for the triggering
(instead of the default Timer(6)), while still supporting original
behaviour.
Addresses issues #1129 and #1388.
stmhal: Clean up DAC code a little.2015-07-21T21:05:56+00:00Damien Georgedamien.p.george@gmail.com2015-07-21T21:05:56+00:00urn:sha1:6f5e0fe9555c935fa0bca81f56d0bfa2993636a2stmhal: Exclude code for those timers that don't exist in the hardware.2015-04-18T20:40:58+00:00Damien Georgedamien.p.george@gmail.com2015-04-18T14:54:15+00:00urn:sha1:c92c7a69fd87ad0c2d330271bc67aaf9d4838fc3