Working DAC lib

2024-03-21 13:57:22 +01:00
parent 3466632ec4
commit fef30d070c
2 changed files with 299 additions and 0 deletions
--- a/DAC7578.h
+++ b/DAC7578.h
@@ -0,0 +1,131 @@
+/**
+The MIT License (MIT)
+
+Copyright (c) 2024 Sani7
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in all
+copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+SOFTWARE.
+ */
+
+#ifndef DAC_DAC7578_H
+#define DAC_DAC7578_H
+
+#include "stm32f0xx_hal.h"
+#include <stdint.h>
+#include <stdbool.h>
+
+typedef struct {
+    I2C_HandleTypeDef *hi2c;
+    uint16_t address;
+    GPIO_TypeDef *ldac_port;
+    uint16_t ldac_pin;
+} DAC7578_HandleTypeDef;
+
+typedef enum {
+    power_on = 0x00,
+    power_off_1k = 0x01,
+    power_off_100k = 0x02,
+    power_off_high_impedance = 0x03
+} DAC7578_power_t;
+
+/**
+ * @brief This function initializes the DAC handle
+ * @param hdac The DAC handle
+ * @param hi2c The I2C handle the DAC is connected to
+ * @param address The I2C address of the DAC (via hardware jumpers)
+ */
+void DAC7578_Init(DAC7578_HandleTypeDef *hdac, I2C_HandleTypeDef *hi2c, uint8_t address, GPIO_TypeDef *ldac_port, uint16_t ldac_pin);
+
+/**
+ * @brief Set the output of a DAC
+ * @param hdac The DAC handle
+ * @param chan The DAC number (0-7)
+ * @param value The 10-bit value to set the DAC to
+ * @param update True to update the DAC output, false to only set the input register
+ */
+void DAC7578_set_dac_output(DAC7578_HandleTypeDef *hdac, uint8_t chan, uint16_t value, bool update);
+
+/**
+ * @brief Update one DAC output
+ * @param hdac The DAC handle
+ * @param chan The DAC number (0-7)
+ */
+void DAC7578_update_dac_output(DAC7578_HandleTypeDef *hdac, uint8_t chan);
+
+/**
+ * @brief Set all dac outputs globally
+ * @param hdac The DAC handle
+ * @param value The 10-bit value to set the DAC to
+ * @param update True to update the DAC output, false to only set the input register
+ */
+void DAC7578_set_dac_output_all(DAC7578_HandleTypeDef *hdac, uint16_t value, bool update);
+
+/**
+ * @brief Update all DAC ouputs
+ * @param hdac The DAC handle
+ */
+void DAC7578_update_dac_output_all(DAC7578_HandleTypeDef *hdac);
+
+/**
+ * @brief Read one dac output register
+ * @param hdac The DAC handle
+ * @param chan The DAC number (0-7)
+ * @param value The pointer to the output value
+ */
+void DAC7578_read_dac_output(DAC7578_HandleTypeDef *hdac, uint8_t chan, uint16_t *value);
+
+/**
+ * @brief Read one dac input register
+ *
+ * @param hdac The DAC handle
+ * @param chan The DAC number (0-7)
+ * @param value The pointer to the output value
+ */
+void DAC7578_read_dac_input(DAC7578_HandleTypeDef *hdac, uint8_t chan, uint16_t *value);
+
+/**
+ * @brief Set the power mode of a dac
+ * @param hdac The DAC handle
+ * @param chan The DAC number (0-7)
+ * @param power The power mode to set the dac to
+ */
+void DAC7578_write_dac_power(DAC7578_HandleTypeDef* hdac, uint8_t chan, DAC7578_power_t power);
+
+/**
+ * @brief Set the power mode of all dacs
+ * @param hdac The DAC handle
+ * @param power The power mode to set all dacs to
+ */
+void DAC7578_write_dac_power_all(DAC7578_HandleTypeDef* hdac, DAC7578_power_t power);
+
+/**
+ * @brief This function makes the provided dac channels ignore the ldac pin
+ *
+ * @param hdac This function makes all dac channels ignore the ldac pin
+ * @param chan The channel(s) that have to ignore the ldac pin
+ */
+void DAC7578_dac_ignore_ldac_pin(DAC7578_HandleTypeDef* hdac, uint8_t chan);
+
+/**
+ * @brief This function makes all dac channels ignore the ldac pin
+ *
+ * @param hdac
+ */
+void DAC7578_all_dac_ignore_ldac_pin(DAC7578_HandleTypeDef* hdac);
+
+#endif //DAC_DAC7578_H