Thu, 06 Apr 2023 20:53:06 +0200
Set the new measured deep sleep current consumption. This is half of the Wemos D1 system.
/* * Copyright (c) 2017 Pham Ngoc Thanh <pnt239@gmail.com> * Copyright (c) 2017 Ruslan V. Uss <unclerus@gmail.com> * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, * this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * 3. Neither the name of the copyright holder nor the names of itscontributors * may be used to endorse or promote products derived from this software without * specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ /** * @file pcf8591.c * * ESP-IDF driver for 8-bit analog-to-digital conversion and * an 8-bit digital-to-analog conversion PCF8591 * * Ported from esp-open-rtos * * Copyright (c) 2017 Pham Ngoc Thanh <pnt239@gmail.com>\n * Copyright (c) 2017, 2018 Ruslan V. Uss <unclerus@gmail.com> * * BSD Licensed as described in the file LICENSE */ #include <stddef.h> #include <esp_log.h> #include <esp_idf_lib_helpers.h> #include "pcf8591.h" static const char *TAG = "pcf8591"; #define I2C_FREQ_HZ 100000 #define BV(x) (1 << (x)) #define CTRL_AD_CH_MASK 0x03 #define CTRL_AD_IN_PRG 4 #define CTRL_AD_IN_PRG_MASK (0x03 << CTRL_AD_IN_PRG) #define CTRL_DA_OUT_EN 6 #define CHECK_ARG(VAL) do { if (!(VAL)) return ESP_ERR_INVALID_ARG; } while (0) esp_err_t pcf8591_init_desc(i2c_dev_t *dev, uint8_t addr, i2c_port_t port, gpio_num_t sda_gpio, gpio_num_t scl_gpio) { CHECK_ARG(dev); if ((addr & PCF8591_DEFAULT_ADDRESS) != PCF8591_DEFAULT_ADDRESS) { ESP_LOGE(TAG, "Invalid I2C address 0x%02x", addr); return ESP_ERR_INVALID_ARG; } dev->port = port; dev->addr = addr; dev->cfg.sda_io_num = sda_gpio; dev->cfg.scl_io_num = scl_gpio; #if HELPER_TARGET_IS_ESP32 dev->cfg.master.clk_speed = I2C_FREQ_HZ; #endif i2c_dev_create_mutex(dev); return ESP_OK; } esp_err_t pcf8591_free_desc(i2c_dev_t *dev) { CHECK_ARG(dev); return i2c_dev_delete_mutex(dev); } esp_err_t pcf8591_read(i2c_dev_t *dev, pcf8591_input_conf_t conf, uint8_t channel, uint8_t *value) { CHECK_ARG(dev && value); if (channel >= 4) { ESP_LOGE(TAG, "Invalid channel number %d", channel); return ESP_ERR_INVALID_ARG; } uint8_t control_reg = ((conf << CTRL_AD_IN_PRG) & CTRL_AD_IN_PRG_MASK) | (channel & CTRL_AD_CH_MASK) | BV(CTRL_DA_OUT_EN); I2C_DEV_TAKE_MUTEX(dev); I2C_DEV_CHECK(dev, i2c_dev_read_reg(dev, control_reg, value, 1)); I2C_DEV_GIVE_MUTEX(dev); return ESP_OK; } esp_err_t pcf8591_write(i2c_dev_t *dev, uint8_t value) { CHECK_ARG(dev); uint8_t buf[2] = { BV(CTRL_DA_OUT_EN), value }; I2C_DEV_TAKE_MUTEX(dev); I2C_DEV_CHECK(dev, i2c_dev_write(dev, NULL, 0, buf, sizeof(buf))); I2C_DEV_GIVE_MUTEX(dev); return ESP_OK; }