Lines Matching +full:sdi +full:- +full:enabled
1 .. SPDX-License-Identifier: GPL-2.0-only
24 ----------------
30 ------------------
33 .. code-block::
35 +-------------+ +-------------+
36 | BUSY |-------->| TRIGGER |
37 | CS |<--------| CS |
41 | SDI |<--------| SDO |
42 | DOUTA |-------->| SDI |
43 | SCLK |<--------| SCLK |
45 | | +-------------+
46 | CONVST |<--------| PWM |
47 +-------------+ +-------------+
50 The ``#trigger-source-cells = <1>`` property is also required to connect back
51 to the SPI offload. The SPI offload will have ``trigger-sources`` property
59 --------------------
63 platform in the device tree (with no io-backends node defined, see below).
65 IIO-backend mode
66 ----------------
70 The backend mode is enabled when through the definition of the "io-backends"
73 The reference configuration for the current implementation of IIO-backend mode
75 https://wiki.analog.com/resources/eval/user-guides/ad7606x-fmc/hdl
77 This implementation embeds an IIO-backend compatible IP (adi-axi-adc) and a PWM
80 .. code-block::
82 +---+ +----------------------------
83 | | +-------+ |AD76xx
85 | D |-------------->| PWM |-------------->| cnvst
87 | 6 | +-------+ |
88 | 0 | controls +-----------+-----------+ |
89 | 6 |---------->| | |<--| frstdata
90 | | | Backend | Backend |<--| busy
92 | R | | | |-->| clk
93 | I | requests |+---------+| DMA | |
94 | V |----------->| Buffer ||<---- |<=>| DATA
95 | E | |+---------+| | |
96 | R | +-----------+-----------+ |
97 | |-------------------------------------->| reset/configuration gpios
98 +---+ +-----------------------------
102 ---------------------------
112 - Scale
117 ---------------------
121 - A GPIO is connected to the conversion trigger pin, and this GPIO is controlled
125 - An external source is connected to the conversion trigger pin. In the
128 control the PWM's frequency. This trigger is enabled only for iio-backend.
131 -----------------
135 - Internal reference (2.5V)
136 - External reference (2.5V)
138 The source is determined by the device tree. If ``refin-supply`` is present,
142 ------------
149 ----------------------
151 - 2/4/8 SDO lines
152 - CRC indication
153 - Calibration
175 --------------------
183 ------------------
188 handles the buffer. When this mode is enabled, the driver cannot control the