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Main i2s merge #105

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merged 10 commits into from
Nov 21, 2023
Merged

Main i2s merge #105

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6e47c15
ports/psoc6: Constructor & init function.
IFX-Anusha Aug 8, 2023
ce033a8
ports/psoc6: Fix init function.
IFX-Anusha Aug 21, 2023
33244df
ports/psoc6: I2S module functions.
IFX-Anusha Aug 24, 2023
6e754ab
ports/psoc6: I2S Blocking mode.
IFX-Anusha Sep 13, 2023
82bfe3d
ports/psoc6: I2S modified clock settings.
IFX-Anusha Oct 30, 2023
1a8b75e
ports/psoc6/machine_i2s.c: Port specific i2s pre-integration extmod/i2s.
jaenrig-ifx Nov 7, 2023
751e27a
ports/psoc6: I2S Blocking Mode with tx master and rx slave.
IFX-Anusha Nov 8, 2023
6a59f02
ports/psoc6: Support for all clock frequencies.
IFX-Anusha Nov 10, 2023
917fab4
ports/psoc6: Stop function,multiple instances & I2S Doc.
IFX-Anusha Nov 17, 2023
85e971b
test/psoc6: I2S Test.
IFX-Anusha Nov 17, 2023
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4 changes: 3 additions & 1 deletion docs/psoc6/feature_list.rst
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Expand Up @@ -130,7 +130,9 @@ Table :ref:`configuration details <table_mpy_configuration>` below lists specifi
+-----------------+----------------------------------------------------------------------------------------------------------------------+
| machine.Timer | mode = Timer.PERIODIC is not supported |
+-----------------+----------------------------------------------------------------------------------------------------------------------+
| machine.SPI | Option ``MICROPY_PY_MACHINE_SPI``, ``MICROPY_PY_MACHINE_SPI_MSB`` , ``MICROPY_PY_MACHINE_SPI_MSB`` enabled. |
| machine.SPI | Option ``MICROPY_PY_MACHINE_SPI``, ``MICROPY_PY_MACHINE_SPI_MSB`` , ``MICROPY_PY_MACHINE_SPI_MSB`` enabled. |
+-----------------+----------------------------------------------------------------------------------------------------------------------+
| machine.I2S | Non Blocking Mode & asyncio mode is not supported |
+-----------------+----------------------------------------------------------------------------------------------------------------------+
| psoc6 | Option to enable the external instead of the internal flash: ``MICROPY_ENABLE_EXT_QSPI_FLASH``. |
| | |
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36 changes: 36 additions & 0 deletions docs/psoc6/quickref.rst
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Expand Up @@ -530,3 +530,39 @@ To use the APIs:
adc = adcBlock.connect(0, "P10_0") # connect channel 0 to pin P10_0
val = adc.read_uv() # read an analog value in micro volts

I2S bus
-------

See :ref:`machine.I2S <machine.I2S>`.

PSoC6 implements additional method which is explained below.

Methods
^^^^^^^
.. method:: I2S.stop()

This method is to stop either the transmission or reception. This function should be called by user once the readinto or
write is done.

::

from machine import I2S, Pin
import array
buf=bytearray(10) #Initilase buffer with required values for transmission & as empty buffer for reception

audio_out = I2S(0, sck="P13_1", ws="P13_2", sd="P13_3", mode=I2S.TX, bits=16, format=I2S.STEREO, rate=22050, ibuf=20000) #create I2S object
num_written = audio_out.write(buf) # write buffer of audio samples to I2S device


audio_in = I2S(1, sck="P5_4", ws="P5_5", sd="P5_6", mode=I2S.RX, bits=16, format=I2S.STEREO, rate=22050, ibuf=20000) # create I2S object
num_read = audio_in.readinto(buf)# fill buffer with audio samples from I2S device
audio_out.stop() # stop transmission
audio_in.stop() # stop reception

PSoc6 supports two I2S Bus. So id could be either 0 or 1. Please note that if both instances are running together then the sample rate should
be either 8/16/32/48 or 22.05/44.01. Both the set of frequencies can't work together(For eg eg. 8 & 22.01 will cause error)
Supported sample rates are 8KHz, 16KHz, 32KHz, 48KHz, 22.05KHz, 44.1KHz.
PSoC6 supports only STEREO Mode.

.. note:: I2S Blocking mode is only supported

1 change: 1 addition & 0 deletions ports/psoc6/Makefile
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Expand Up @@ -168,6 +168,7 @@ MOD_SRC_C += $(addprefix modules/,\
machine/machine_timer.c \
machine/machine_adc.c \
machine/machine_adcblock.c \
machine/machine_i2s.c\
\
psoc6/modpsoc6.c \
psoc6/psoc6_fatfs.c \
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