Lines Matching +full:io +full:- +full:backends
1 .. SPDX-License-Identifier: GPL-2.0-only
24 ----------------
30 --------------------
34 platform in the device tree (with no io-backends node defined, see below).
36 IIO-backend mode
37 ----------------
41 The backend mode is enabled when through the definition of the "io-backends"
44 The reference configuration for the current implementation of IIO-backend mode
46 https://wiki.analog.com/resources/eval/user-guides/ad7606x-fmc/hdl
48 This implementation embeds an IIO-backend compatible IP (adi-axi-adc) and a PWM
51 .. code-block::
53 +---+ +----------------------------
54 | | +-------+ |AD76xx
56 | D |-------------->| PWM |-------------->| cnvst
58 | 6 | +-------+ |
59 | 0 | controls +-----------+-----------+ |
60 | 6 |---------->| | |<--| frstdata
61 | | | Backend | Backend |<--| busy
63 | R | | | |-->| clk
64 | I | requests |+---------+| DMA | |
65 | V |----------->| Buffer ||<---- |<=>| DATA
66 | E | |+---------+| | |
67 | R | +-----------+-----------+ |
68 | |-------------------------------------->| reset/configuration gpios
69 +---+ +-----------------------------
73 ---------------------------
83 - Scale
88 ---------------------
92 - A GPIO is connected to the conversion trigger pin, and this GPIO is controlled
96 - An external source is connected to the conversion trigger pin. In the
99 control the PWM's frequency. This trigger is enabled only for iio-backend.
102 -----------------
106 - Internal reference (2.5V)
107 - External reference (2.5V)
109 The source is determined by the device tree. If ``refin-supply`` is present,
113 ------------
120 ----------------------
122 - 2/4/8 SDO lines
123 - CRC indication
124 - Calibration
130 --------------------
138 ------------------