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projects: led: ltc3220: add project for LTC3220
Created LTC3220 project example for Maxim platform Includes tests for the different features of the LTC3220 Signed-off-by: Jan Carlo Roleda <[email protected]>
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‎projects/ltc3220/makefile‎

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EXAMPLE ?= dummy
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PLATFORM ?= maxim
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include ../../tools/scripts/generic_variables.mk
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include ../../tools/scripts/examples.mk
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include src.mk
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include ../../tools/scripts/generic.mk

‎projects/ltc3220/src.mk‎

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INCS += $(INCLUDE)/no_os_error.h \
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$(INCLUDE)/no_os_gpio.h \
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$(INCLUDE)/no_os_irq.h \
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$(INCLUDE)/no_os_list.h \
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$(INCLUDE)/no_os_uart.h \
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$(INCLUDE)/no_os_lf256fifo.h\
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$(INCLUDE)/no_os_dma.h \
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$(INCLUDE)/no_os_init.h \
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$(INCLUDE)/no_os_util.h \
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$(INCLUDE)/no_os_i2c.h \
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$(INCLUDE)/no_os_mutex.h \
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$(INCLUDE)/no_os_alloc.h \
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$(INCLUDE)/no_os_delay.h
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SRCS += $(DRIVERS)/api/no_os_gpio.c \
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$(DRIVERS)/api/no_os_irq.c \
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$(NO-OS)/util/no_os_list.c \
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$(DRIVERS)/api/no_os_uart.c \
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$(NO-OS)/util/no_os_lf256fifo.c \
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$(DRIVERS)/api/no_os_dma.c \
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$(DRIVERS)/api/no_os_i2c.c \
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$(NO-OS)/util/no_os_util.c \
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$(NO-OS)/util/no_os_mutex.c \
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$(NO-OS)/util/no_os_alloc.c
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INCS += $(DRIVERS)/led/ltc3220/ltc3220.h
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SRCS += $(DRIVERS)/led/ltc3220/ltc3220.c

‎projects/ltc3220/src/common/common_data.c‎

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/***************************************************************************//**
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* @file common_data.c
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* @brief Defines common data to be used by LTC3220 examples.
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* @author Jan Carlo Roleda ([email protected])
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********************************************************************************
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* Copyright 2025(c) Analog Devices, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of Analog Devices, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES, INC. “AS IS” AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL ANALOG DEVICES, INC. BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*******************************************************************************/
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#include "common_data.h"
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const struct no_os_i2c_init_param iip = {
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.device_id = I2C_DEVICE_ID,
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.max_speed_hz = 400000,
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.slave_address = DEV_I2C_ADDRESS,
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.platform_ops = I2C_OPS,
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.extra = &ltc3220_i2c_extra,
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};
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const struct no_os_gpio_init_param gip = {
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.port = GPIO_RST_PIN_PORT,
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.number = GPIO_RST_PIN_NUM,
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.pull = NO_OS_PULL_NONE,
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.platform_ops = GPIO_OPS,
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.extra = &ltc3220_gpio_extra,
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};
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struct ltc3220_init_param ltc3220_user_init = {
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.i2c_init_param = iip,
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.gpio_init_param = gip,
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};
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‎projects/ltc3220/src/common/common_data.h‎

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/***************************************************************************//**
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* @file common_data.h
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* @brief Defines common data to be used by LTC3220 examples.
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* @author Jan Carlo Roleda ([email protected])
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********************************************************************************
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* Copyright 2025(c) Analog Devices, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of Analog Devices, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES, INC. “AS IS” AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL ANALOG DEVICES, INC. BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*******************************************************************************/
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#ifndef __COMMON_DATA_H__
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#define __COMMON_DATA_H__
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#include "parameters.h"
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#include "ltc3220.h"
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extern const struct no_os_i2c_init_param iip;
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extern const struct no_os_gpio_init_param gip;
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extern struct ltc3220_init_param ltc3220_user_init;
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#endif /* __COMMON_DATA_H__ */

‎projects/ltc3220/src/examples/dummy/dummy_example.c‎

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/***************************************************************************//**
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* @file dummy_example.c
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* @brief exmaple program for Maxim platfom of LTC3220 project.
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* @author Jan Carlo Roleda ([email protected])
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********************************************************************************
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* Copyright 2025(c) Analog Devices, Inc.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* 1. Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* 3. Neither the name of Analog Devices, Inc. nor the names of its
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* contributors may be used to endorse or promote products derived from this
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* software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY ANALOG DEVICES, INC. “AS IS” AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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* EVENT SHALL ANALOG DEVICES, INC. BE LIABLE FOR ANY DIRECT, INDIRECT,
26+
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
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* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE,
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* EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*******************************************************************************/
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#include "common_data.h"
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#include "ltc3220.h"
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#include "no_os_delay.h"
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#include "example_tests.h"
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/***************************************************************************//**
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* @brief Dummy example main execution.
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*
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* @return ret - Result of the example execution. If working correctly, will
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* execute continuously the while(1) loop and will not return.
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*******************************************************************************/
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int example_main()
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{
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struct ltc3220_dev *ltc3220;
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int ret;
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ret = ltc3220_init(&ltc3220, ltc3220_user_init);
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if (ret)
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goto error;
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while (true) {
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/* reset operations */
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ret = ltc3220_reset(ltc3220);
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if (ret)
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goto error_ltc3220;
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/* regular light mode */
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ltc3220_test_led_singles(ltc3220, LTC3220_MODE_NORMAL);
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no_os_mdelay(3000);
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ret = ltc3220_reset(ltc3220);
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if (ret)
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goto error_ltc3220;
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/* blinking (fast) */
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ltc3220_set_blink_fast(ltc3220, true);
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ltc3220_set_blink_long(ltc3220, false);
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ltc3220_test_led_singles(ltc3220, LTC3220_MODE_BLINK);
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no_os_mdelay(3000);
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ret = ltc3220_reset(ltc3220);
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if (ret)
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goto error_ltc3220;
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/* blinking (slow) */
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ltc3220_set_blink_fast(ltc3220, false);
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ltc3220_set_blink_long(ltc3220, true);
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ltc3220_test_led_singles(ltc3220, LTC3220_MODE_BLINK);
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no_os_mdelay(3000);
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ret = ltc3220_reset(ltc3220);
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if (ret)
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goto error_ltc3220;
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/* check if voltage output is ~4.6v */
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ltc3220_set_cpo_1p5x(ltc3220, true);
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/* gradation (increasing) */
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ltc3220_set_grad_increasing(ltc3220, true);
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ltc3220_set_grad_speed(ltc3220, LTC3220_GRAD_MAX_SPD);
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ltc3220_test_led_singles(ltc3220, LTC3220_MODE_GRADATION);
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no_os_mdelay(3000);
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ret = ltc3220_reset(ltc3220);
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if (ret)
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goto error_ltc3220;
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/* gradation (decreasing) */
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ltc3220_set_grad_increasing(ltc3220, false);
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ltc3220_set_grad_speed(ltc3220, LTC3220_GRAD_MAX_SPD);
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ltc3220_test_led_singles(ltc3220, LTC3220_MODE_GRADATION);
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no_os_mdelay(3000);
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ret = ltc3220_reset(ltc3220);
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if (ret)
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goto error_ltc3220;
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/* gradation (disabled) = normal mode */
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ltc3220_set_grad_speed(ltc3220, 0);
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ltc3220_test_led_singles(ltc3220, LTC3220_MODE_GRADATION);
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no_os_mdelay(3000);
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ret = ltc3220_reset(ltc3220);
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if (ret)
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goto error_ltc3220;
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/* using different modes on the device */
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ltc3220_set_blink_fast(ltc3220, true);
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ltc3220_set_grad_speed(ltc3220, LTC3220_GRAD_MAX_SPD);
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ltc3220_test_led_singles_alt_modes(ltc3220);
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no_os_mdelay(3000);
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ret = ltc3220_reset(ltc3220);
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if (ret)
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goto error_ltc3220;
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/* check if voltage output is ~5.1v */
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ltc3220_set_cpo_2x(ltc3220, true);
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/* use parallel and single commands on LEDs */
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ltc3220_set_blink_fast(ltc3220, true);
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ltc3220_set_blink_long(ltc3220, true);
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ltc3220_test_led_quick_write_with_indiv(ltc3220, LTC3220_MODE_BLINK);
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no_os_mdelay(3000);
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ret = ltc3220_reset(ltc3220);
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if (ret)
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goto error_ltc3220;
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/* set alternating and shutdown, restore after 5s */
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ltc3220_set_cpo_2x(ltc3220, true);
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ltc3220_set_blink_fast(ltc3220, true);
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ltc3220_set_grad_speed(ltc3220, LTC3220_GRAD_MAX_SPD);
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ltc3220_test_led_singles_alt_modes(ltc3220);
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ltc3220_set_shutdown(ltc3220, true);
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no_os_mdelay(5000);
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ltc3220_set_shutdown(ltc3220, false);
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no_os_mdelay(5000);
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}
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error_ltc3220:
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ltc3220_remove(ltc3220);
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error:
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return -1;
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}

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