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projects: led: ltc3208: add README documentation for LTC3208
Added project documentation for LTC3208 Driver Example Signed-off-by: Escala, Edelweise <[email protected]>
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‎doc/sphinx/source/projects/led/ltc3208.rst‎

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.. include:: ../../../../../projects/ltc3208/README.rst

‎doc/sphinx/source/projects_doc.rst‎

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:maxdepth: 1
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projects/gyroscope/*
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projects/gyroscope/*
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LED
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===
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.. toctree::
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:maxdepth: 1
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:glob:
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projects/led/*

‎projects/ltc3208/README.rst‎

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Evaluating the LTC3208
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======================
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Supported Evaluation Boards
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---------------------------
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* DC824A (LTC3208)
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Overview
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--------
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The LTC3208 is a highly integrated multidisplay LED
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controller. The part contains a 1A high efficiency, low noise
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charge pump to provide power to the MAIN, SUB, RGB, CAM
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and AUX LED displays. The LTC3208 requires only small
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ceramic capacitors and one current set resistor to form a
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complete LED power supply and current controller
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The maximum display currents are set by a single external resistor.
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Current for each LED is controlled by a precision internal
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current source. Dimming and On/Off for all displays is achieved
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via the I2C serial interface.
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256 brightness levels are available for the MAIN and SUB displays.
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16 levels are available for the RGB and CAM displays.
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Four AUX current sources can be independently
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assigned via the I2C port to the CAM, SUB, MAIN or AUX
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DAC controlled displays.
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Power Supply Requirements
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-------------------------
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A seperate power supply capable of providing 3V. The logic signals used for the I2C protocol
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uses 3.3V via the controller as a logic high reference.
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**Pin Description**:
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+-----+-----------+-------------------------------------------+
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| Pin | Name | Description |
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+-----+-----------+-------------------------------------------+
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| 1 | CAM1 | Camera Display Current Source Output 1 |
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+-----+-----------+-------------------------------------------+
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| 2 | CAM2 | Camera Display Current Source Output 2 |
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+-----+-----------+-------------------------------------------+
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| 3 | CAM3 | Camera Display Current Source Output 3 |
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+-----+-----------+-------------------------------------------+
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| 4 | CAM4 | Camera Display Current Source Output 4 |
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+-----+-----------+-------------------------------------------+
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| 5 | AUX1 | Auxillary Display Current Source Output 1 |
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+-----+-----------+-------------------------------------------+
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| 6 | AUX2 | Auxillary Display Current Source Output 2 |
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+-----+-----------+-------------------------------------------+
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| 7 | AUX3 | Auxillary Display Current Source Output 3 |
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+-----+-----------+-------------------------------------------+
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| 8 | AUX4 | Auxillary Display Current Source Output 4 |
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+-----+-----------+-------------------------------------------+
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| 9 | CAMHL | CAM High Input |
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+-----+-----------+-------------------------------------------+
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| 10 | SCL | I2C Clock Input |
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+-----+-----------+-------------------------------------------+
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| 11 | SDA | I2C Data Input |
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+-----+-----------+-------------------------------------------+
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| 12 | VBAT3 | Supply Voltage |
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+-----+-----------+-------------------------------------------+
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| 14 | DVCC | Supply Voltage for all Digital I/O Lines |
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+-----+-----------+-------------------------------------------+
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| 15 | MAIN1 | Main Display Current Source Output 1 |
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+-----+-----------+-------------------------------------------+
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| 16 | MAIN2 | Main Display Current Source Output 2 |
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+-----+-----------+-------------------------------------------+
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| 17 | MAIN3 | Main Display Current Source Output 3 |
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+-----+-----------+-------------------------------------------+
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| 18 | MAIN4 | Main Display Current Source Output 4 |
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+-----+-----------+-------------------------------------------+
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| 19 | SUB2 | Sub Display Current Source Output 2 |
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+-----+-----------+-------------------------------------------+
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| 20 | SUB1 | Sub Display Current Source Output 1 |
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+-----+-----------+-------------------------------------------+
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| 21 | BLUE | Blue LED Current Source Output |
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+-----+-----------+-------------------------------------------+
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| 22 | GRN | Green LED Current Source Output |
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+-----+-----------+-------------------------------------------+
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| 23 | RED | Red LED Current Source Output |
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+-----+-----------+-------------------------------------------+
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| 24 | VBAT2 | Supply Voltage |
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+-----+-----------+-------------------------------------------+
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| 25 | GND | Ground Pad |
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+-----+-----------+-------------------------------------------+
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| 28 | ENRGBS | RGB Input |
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+-----+-----------+-------------------------------------------+
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| 30 | VBAT1 | Supply Voltage |
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+-----+-----------+-------------------------------------------+
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| 32 | CPO | Charge Pump Output |
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+-----+-----------+-------------------------------------------+
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| 33 | GND | Ground Pad |
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+-----+-----------+-------------------------------------------+
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No-OS Build Setup
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-----------------
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Please refer to the Analog Wiki: https://wiki.analog.com/resources/no-os/build
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No-OS Supported Platforms
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-------------------------
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The initialization data used in the examples is taken out from:
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`Project Common Data Path <https://github.com/analogdevicesinc/no-OS/tree/main/projects/ltc3208/src/common>`_
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The macros used in Common data are defined in platfor-specific files found in:
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`Project Platform Configuration Path <https://github.com/analogdevicesinc/no-OS/tree/main/projects/ltc3208/src/platform>`_
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Maxim Platform
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--------------
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**Used Hardware**
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* `DC824A <https://www.analog.com/en/resources/evaluation-hardware-and-software/evaluation-boards-kits/dc824a.html>`_
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**Connections**:
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+----------+-----------------------+
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| LTC3208 | MAX32655 Pinouts |
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+----------+-----------------------+
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| V_IN | Power Supply |
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+----------+-----------------------+
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| V_CC | 3v3 |
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+----------+-----------------------+
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| GND | GND |
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+----------+-----------------------+
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| I2C_SCL | P0_30 |
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+----------+-----------------------+
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| I2C_SDA | P0_31 |
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+----------+-----------------------+
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** Build Command **
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.. code-block:: bash
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# to delete current build
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make reset
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#to build project
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make TARGET=max32655
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# to flash the code to the controller
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make TARGET=max32655 run

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