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tests/drivers/abp2: test implementation
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‎tests/drivers/abp2/Makefile‎

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include ../Makefile.drivers_common
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# include and auto-initialize all available sensors
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USEMODULE += saul_default
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# use abp2_spi for SPI-Mode and abp2_i2c for I2C-Mode
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USEMODULE += abp2
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ABP2_INTERFACE ?= abp2_spi
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USEMODULE += $(ABP2_INTERFACE)
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USEMODULE += ztimer
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USEMODULE += ztimer_msec
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USEMODULE += phydat
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include $(RIOTBASE)/Makefile.include

‎tests/drivers/abp2/Makefile.ci‎

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BOARD_INSUFFICIENT_MEMORY := \
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atmega8 \
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#

‎tests/drivers/abp2/README.md‎

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# About
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This is a test application for the Honeywell [ABP2 series][1] pressure and temperature sensor.
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# Usage
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This test application initializes the sensor and measures pressure and
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temperature periodically.
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The results are printed to the standard output.
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Every few seconds, it switches between blocking and non-blocking modes.
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[1]: https://sps.honeywell.com/us/en/products/advanced-sensing-technologies/healthcare-sensing/board-mount-pressure-sensors/basic-abp2-series "ABP2 series"

‎tests/drivers/abp2/app.config.test‎

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# this file enables modules defined in Kconfig. Do not use this file for
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# application configuration. This is only needed during migration.
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CONFIG_MODULE_ABP2=y
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CONFIG_MODULE_ZTIMER=y
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CONFIG_MODULE_ZTIMER_MSEC=y

‎tests/drivers/abp2/main.c‎

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/*
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* Copyright (C) 2024 CNRS, France
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*
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* This file is subject to the terms and conditions of the GNU Lesser
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* General Public License v2.1. See the file LICENSE in the top level
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* directory for more details.
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*/
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/**
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* @ingroup tests
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* @{
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*
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* @file
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* @brief Test application for the Honeywell ABP2 series
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* pressure and temperature sensor driver.
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*
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* @author David Picard <[email protected]>
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* @}
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*/
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#include <stdio.h>
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#include <string.h>
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#include "ztimer.h"
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#include "timex.h"
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#include "phydat.h"
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#include "abp2.h"
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#include "abp2_params.h"
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#include "saul_reg.h"
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#define STATUS_SLEEP_MS (1)
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#define MEASUREMENT_SLEEP_MS (1000)
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#define MAX_LOOPS_STATUS (10)
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#define MAX_LOOPS_MEAS (3)
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/* supported acquisition modes */
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enum {
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NON_BLOCKING,
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BLOCKING,
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SAUL
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} acqmode = NON_BLOCKING;
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static abp2_t dev;
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int main(void)
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{
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int32_t press = 0;
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int32_t temp = 0;
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abp2_params_t prms;
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phydat_t phyPress;
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phydat_t phyTemp;
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void *ptr;
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int cntMeas = 0;
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saul_reg_t *saulDev = saul_reg;
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phydat_t saulData;
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puts("ABP2 Honeywell series pressure and temperature sensor\n");
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if (saulDev == NULL) {
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puts("ERROR: no SAUL devices detected");
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}
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ptr = memcpy(&prms, &abp2_params, sizeof(abp2_params));
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if (!ptr)
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{
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puts("main() >> ERROR: memcpy() failed");
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return 1;
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}
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printf("Initializing SPI bus %d\n", prms.spi);
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spi_init(prms.spi);
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printf("Initializing ABP2 at SPI_DEV(%i)... ", prms.spi);
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if (abp2_init(&dev, &prms) == 0)
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{
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puts("[OK]");
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}
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else {
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puts("[Failed]");
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return -1;
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}
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puts("=========================");
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puts(" Measuring");
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puts("=========================");
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printf("Pressure range = %d .. %d\n", (int)prms.rangeMin, (int)prms.rangeMax);
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while (1) {
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int res;
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ztimer_sleep(ZTIMER_MSEC, MEASUREMENT_SLEEP_MS);
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switch (acqmode) {
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case NON_BLOCKING:
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res = abp2_read_nb(&dev, &press, &temp);
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if (res)
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{
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printf("abp2_read_nb() >> ERROR errno = %d", res);
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continue;
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}
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break;
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case BLOCKING:
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res = abp2_read(&dev, &press, &temp);
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if (res)
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{
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printf("abp2_read() >> ERROR errno = %d", res);
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continue;
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}
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break;
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case SAUL:
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while (saulDev) {
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int dim = saul_reg_read(saulDev, &saulData);
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printf("\nDev: %s\tType: %s" "\n", saulDev->name,
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saul_class_to_str(saulDev->driver->type));
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phydat_dump(&saulData, dim);
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saulDev = saulDev->next;
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}
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saulDev = saul_reg; /* reset pointer for next read */
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break;
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default:
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acqmode = 0;
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}
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/* display data retrieved in blocking and non-blocking modes: */
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if (acqmode != SAUL) {
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phyPress.val[0] = press / 100; /* let int32_t fit into int16_t */
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phyPress.scale = -4; /* and set the exponent accordingly */
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phyPress.unit = UNIT_BAR; /* set the unit */
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phydat_dump(&phyPress, 1); /* print the value in a pretty format */
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phyTemp.val[0] = temp; /* temp is already in mdeg C */
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phyTemp.scale = -3; /* 1 mdegC = 1e-03 degC */
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phyTemp.unit = UNIT_TEMP_C; /* set the unit */
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phydat_dump(&phyTemp, 1); /* print the value in a pretty format */
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}
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/* Switch modes periodically: */
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cntMeas++;
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if (cntMeas == MAX_LOOPS_MEAS) {
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cntMeas = 0;
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acqmode++;
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if (acqmode > SAUL) {
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acqmode = 0;
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}
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puts("------------------------------");
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switch (acqmode) {
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case NON_BLOCKING:
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puts("Switch to non-blocking mode");
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break;
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case BLOCKING:
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puts("Switch to blocking mode");
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break;
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case SAUL:
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puts("Switch to SAUL mode");
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break;
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default:
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acqmode = 0;
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puts("ERROR: unsupported mode");
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}
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puts("------------------------------");
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}
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}
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return 0;
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}

‎tests/drivers/saul_drivers/Makefile‎

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USEMODULE += $(DRIVERS)
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# Somes drivers with submodules needs special care to select a precise driver variant
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ifneq (,$(filter abp2,$(DRIVERS)))
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USEMODULE += abp2_spi
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endif
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ifneq (,$(filter adcxx1c,$(DRIVERS)))
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USEMODULE += adc081c
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endif

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