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projects: ltc2378: Add project for LTC2378
Add initial project files for both basic and IIO examples for LTC2378. Signed-off-by: Cherrence Sarip <[email protected]>
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‎projects/ltc2378/Makefile‎

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EXAMPLE ?= basic
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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/ltc2378/builds.json‎

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{
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"maxim": {
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"basic_example": {
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"flags": "EXAMPLE=basic TARGET=max32665"
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},
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"iio": {
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"flags": "EXAMPLE=iio_example TARGET=max32665"
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}
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}
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}

‎projects/ltc2378/src.mk‎

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INCS += $(INCLUDE)/no_os_delay.h \
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$(INCLUDE)/no_os_error.h \
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$(INCLUDE)/no_os_gpio.h \
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$(INCLUDE)/no_os_print_log.h \
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$(INCLUDE)/no_os_spi.h \
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$(INCLUDE)/no_os_alloc.h \
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$(INCLUDE)/no_os_irq.h \
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$(INCLUDE)/no_os_list.h \
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$(INCLUDE)/no_os_dma.h \
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$(INCLUDE)/no_os_uart.h \
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$(INCLUDE)/no_os_lf256fifo.h \
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$(INCLUDE)/no_os_util.h \
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$(INCLUDE)/no_os_units.h \
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$(INCLUDE)/no_os_mutex.h
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SRCS += $(DRIVERS)/api/no_os_gpio.c \
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$(NO-OS)/util/no_os_lf256fifo.c \
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$(DRIVERS)/api/no_os_irq.c \
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$(DRIVERS)/api/no_os_spi.c \
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$(DRIVERS)/api/no_os_uart.c \
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$(DRIVERS)/api/no_os_dma.c \
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$(NO-OS)/util/no_os_list.c \
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$(NO-OS)/util/no_os_util.c \
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$(NO-OS)/util/no_os_alloc.c \
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$(NO-OS)/util/no_os_mutex.c
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INCS += $(DRIVERS)/adc/ltc2378/ltc2378.h
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SRCS += $(DRIVERS)/adc/ltc2378/ltc2378.c

‎projects/ltc2378/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 ltc2378 examples.
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* @author Cherrence Sarip ([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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#include <stdbool.h>
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struct no_os_uart_init_param uip = {
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.device_id = UART_DEVICE_ID,
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.irq_id = UART_IRQ_ID,
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.asynchronous_rx = true,
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.baud_rate = UART_BAUDRATE,
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.size = NO_OS_UART_CS_8,
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.parity = NO_OS_UART_PAR_NO,
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.stop = NO_OS_UART_STOP_1_BIT,
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.platform_ops = UART_OPS,
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.extra = UART_EXTRA,
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};
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const struct no_os_spi_init_param ltc2378_spi_ip = {
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.device_id = SPI_DEVICE_ID,
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.max_speed_hz = SPI_MAX_SPEED,
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.chip_select = SPI_CS,
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.mode = NO_OS_SPI_MODE_0,
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.bit_order = NO_OS_SPI_BIT_ORDER_MSB_FIRST,
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.platform_ops = SPI_OPS,
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.extra = SPI_EXTRA,
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.parent = NULL,
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};
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const struct no_os_gpio_init_param ltc2378_gpio_cnv = {
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.port = GPIO_CNV_PORT_NUM,
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.number = GPIO_CNV_PIN_NUM,
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.platform_ops = GPIO_OPS,
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.extra = GPIO_EXTRA
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};
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const struct no_os_gpio_init_param ltc2378_gpio_busy = {
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.port = GPIO_BUSY_PORT_NUM,
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.number = GPIO_BUSY_PIN_NUM,
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.platform_ops = GPIO_OPS,
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.extra = GPIO_EXTRA
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};
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struct ltc2378_init_param ltc2378_ip = {
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.spi_init = &ltc2378_spi_ip,
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.gpio_cnv_init = &ltc2378_gpio_cnv,
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.gpio_busy_init = &ltc2378_gpio_busy,
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.vref_uv = 2500000,
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.input_mode = LTC2378_UNIPOLAR
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};

‎projects/ltc2378/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 ltc2378 examples.
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* @author Cherrence Sarip ([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 "ltc2378.h"
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#include "no_os_spi.h"
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#include "iio_ltc2378.h"
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extern struct no_os_uart_init_param uip;
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extern const struct no_os_spi_init_param ltc2378_spi_ip;
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extern const struct no_os_gpio_init_param ltc2378_gpio_cnv;
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extern const struct no_os_gpio_init_param ltc2378_gpio_busy;
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extern struct ltc2378_init_param ltc2378_ip;
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#endif /* __COMMON_DATA_H__ */

‎projects/ltc2378/src/examples/basic/basic_example.c‎

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/*******************************************************************************
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* @file basic_example.c
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* @brief Basic example code for ltc2378 project
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* @author Cherrence Sarip ([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 "no_os_delay.h"
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#include "no_os_print_log.h"
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#include "no_os_spi.h"
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#include "no_os_util.h"
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#include "no_os_error.h"
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#include "common_data.h"
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#include "ltc2378.h"
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#include <stdlib.h>
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#include "no_os_gpio.h"
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#include "maxim_gpio.h"
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/*****************************************************************************
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* @brief Basic 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 ltc2378_dev *dev;
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int ret;
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pr_info("Enter basic example \n");
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struct no_os_uart_desc *uart_desc;
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ret = no_os_uart_init(&uart_desc, &uip);
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if (ret)
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return ret;
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no_os_uart_stdio(uart_desc);
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ret = ltc2378_init(&dev, &ltc2378_ip);
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if (ret) {
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pr_info("Init failed: %d\n", ret);
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return ret;
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}
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pr_info("VREF: %lu uV, Mode: %s\n",
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dev->vref_uv,
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(dev->input_mode == LTC2378_UNIPOLAR) ? "Unipolar" : "Bipolar");
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while (1) {
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uint32_t raw;
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int32_t voltage_uv;
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ret = ltc2378_read_raw(dev, &raw);
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if (ret) {
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pr_info("Read failed: %d\n", ret);
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continue;
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}
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ret = ltc2378_raw_to_uv(dev, raw, &voltage_uv);
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if (ret) {
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pr_info("Convert failed: %d\n", ret);
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continue;
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}
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pr_info("Raw: %lu, Voltage: %ld uV\n", raw, voltage_uv);
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no_os_mdelay(500);
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}
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return 0;
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}

‎projects/ltc2378/src/examples/iio_example/iio_example.c‎

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/********************************************************************************
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* @file iio_example.c
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* @brief IIO example code for the ltc2378 project
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* @author Cherrence Sarip ([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,
12+
* 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
19+
* contributors may be used to endorse or promote products derived from this
20+
* 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
23+
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
24+
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
25+
* EVENT SHALL ANALOG DEVICES, INC. BE LIABLE FOR ANY DIRECT, INDIRECT,
26+
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27+
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA,
28+
* 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 <stdlib.h>
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#include <stdio.h>
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#include <string.h>
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#include "no_os_alloc.h"
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#include "no_os_error.h"
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#include "no_os_units.h"
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#include "no_os_util.h"
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#include "no_os_print_log.h"
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#include "ltc2378.h"
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#include "iio_ltc2378.h"
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#include "iio_app.h"
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#include "common_data.h"
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/*******************************************************************************
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* @brief IIO 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 function iio_app_run and will not return.
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*******************************************************************************/
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int example_main()
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{
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int ret;
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struct ltc2378_iio_desc *ltc2378_iio_desc;
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struct ltc2378_iio_desc_init_param ltc2378_iio_ip = {
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.ltc2378_init_param = &ltc2378_ip,
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};
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struct iio_app_desc *app;
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struct iio_app_init_param app_init_param = { 0 };
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ret = ltc2378_iio_init(&ltc2378_iio_desc, &ltc2378_iio_ip);
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if (ret)
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goto exit;
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struct iio_app_device iio_devices[] = {
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{
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.name = "ltc2378-20",
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.dev = ltc2378_iio_desc,
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.dev_descriptor = ltc2378_iio_desc->iio_dev,
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},
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};
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app_init_param.devices = iio_devices;
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app_init_param.nb_devices = NO_OS_ARRAY_SIZE(iio_devices);
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app_init_param.uart_init_params = uip;
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ret = iio_app_init(&app, app_init_param);
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if (ret)
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goto remove_iio_ltc2378;
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ret = iio_app_run(app);
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iio_app_remove(app);
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remove_iio_ltc2378:
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ltc2378_iio_remove(ltc2378_iio_desc);
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exit:
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if (ret)
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pr_info("Error!\n");
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return ret;
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}

‎projects/ltc2378/src/examples/iio_example/iio_example.mk‎

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IIOD = y
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INCS += $(DRIVERS)/adc/ltc2378/iio_ltc2378.h
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SRCS += $(DRIVERS)/adc/ltc2378/iio_ltc2378.c

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