Integrated adc128d818 driver

libraries/ms-drivers/inc/adc128d818.h

@@ -0,0 +1,52 @@
+// adc128d818.h
+#pragma once
+#include <stdint.h>
+#include <stdbool.h>
+#include "status.h"
+#include "gpio.h"
+#include "i2c.h"
+
+// Enum for ADC128D818 status codes
+typedef enum {
+  ADC128D818_STATUS_CODE_OK = 0,
+  ADC128D818_STATUS_CODE_ERROR,
+  NUM_ADC128D818_STATUS_CODES,
+} Adc128d818StatusCode;
+
+// Callback type for error handling
+typedef void (*Adc128d818ErrorHandlerCb)(Adc128d818StatusCode code, void *context);
+
+// Struct for ADC128D818 settings
+typedef struct {
+  I2CPort i2c_port;
+  uint8_t i2c_address;
+  GpioAddress alert_pin;
+  Adc128d818ErrorHandlerCb error_handler;
+  void *error_context;
+} Adc128d818Settings;
+
+// Struct for ADC128D818 storage
+typedef struct {
+  I2CPort i2c_port;
+  uint8_t i2c_address;
+  Adc128d818ErrorHandlerCb error_handler;
+  void *error_context;
+} Adc128d818Storage;
+
+// Initializes the ADC128D818 with the given settings
+StatusCode adc128d818_init(Adc128d818Storage *storage, const Adc128d818Settings *settings);
+
+// Reads a channel value from the ADC128D818
+StatusCode adc128d818_read_channel(Adc128d818Storage *storage, uint8_t channel, uint16_t *reading);
+
+// Sets the configuration register of the ADC128D818
+StatusCode adc128d818_set_config(Adc128d818Storage *storage, uint8_t config);
+
+// Sets the conversion rate of the ADC128D818
+StatusCode adc128d818_set_conversion_rate(Adc128d818Storage *storage, uint8_t rate);
+
+// Enables or disables a channel on the ADC128D818
+StatusCode adc128d818_set_channel_enable(Adc128d818Storage *storage, uint8_t channel, bool enable);
+
+// Start a single-shot conversion
+StatusCode adc128d818_start_one_shot(Adc128d818Storage *storage);

libraries/ms-drivers/inc/adc128d818_def.h

@@ -0,0 +1,40 @@
+#pragma once
+
+// I2C Base Address as described in the datasheet (Section 8.5.1.1)
+// Pins 7 and 8 are unconnected in schematics, treated as LOW 
+#define ADC128D818_I2C_BASE_ADDRESS 0x1D 
+
+// Register Addresses from Table 3 in Section 8.6
+#define ADC128D818_REG_CONFIG 0x00
+#define ADC128D818_REG_INT_STATUS 0x01
+#define ADC128D818_REG_INT_MASK 0x03
+#define ADC128D818_REG_CONV_RATE 0x07
+#define ADC128D818_REG_CHANNEL_DISABLE 0x08
+#define ADC128D818_REG_ONE_SHOT 0x09
+#define ADC128D818_REG_DEEP_SHUTDOWN 0x0A
+#define ADC128D818_REG_ADV_CONFIG 0x0B
+#define ADC128D818_REG_BUSY_STATUS 0x0C
+#define ADC128D818_REG_CHANNEL_READINGS_START 0x20
+#define ADC128D818_REG_LIMIT_START 0x2A
+#define ADC128D818_REG_MANUFACTURER_ID 0x3E
+#define ADC128D818_REG_REVISION_ID 0x3F
+
+// Configuration Register Bits (Table 4)
+#define ADC128D818_CONFIG_START 0x01
+#define ADC128D818_CONFIG_INT_ENABLE 0x02
+#define ADC128D818_CONFIG_INT_CLEAR 0x08
+#define ADC128D818_CONFIG_INIT 0x80
+
+// Advanced Configuration Register Bits (Section 8.3.3.1)
+#define ADC128D818_ADV_CONFIG_INTERNAL_VREF 0x00
+#define ADC128D818_ADV_CONFIG_EXTERNAL_VREF 0x10
+#define ADC128D818_ADV_CONFIG_MODE_SINGLE_ENDED 0x00
+#define ADC128D818_ADV_CONFIG_MODE_PSEUDO_DIFF 0x02
+
+// Conversion Rate Values (Section 8.6.5)
+#define ADC128D818_CONV_RATE_LOW_POWER 0x00
+#define ADC128D818_CONV_RATE_CONTINUOUS 0x01
+
+// Default Initialization Values
+#define ADC128D818_DEFAULT_CONFIG (ADC128D818_CONFIG_START | ADC128D818_CONFIG_INT_ENABLE)
+#define ADC128D818_DEFAULT_ADV_CONFIG (ADC128D818_ADV_CONFIG_EXTERNAL_VREF | ADC128D818_ADV_CONFIG_MODE_SINGLE_ENDED)

libraries/ms-drivers/src/adc128d818.c

@@ -0,0 +1,86 @@
+#include "adc128d818.h"
+#include "adc128d818_def.h"
+#include "gpio.h"
+#include "i2c.h"
+#include "status.h"
+#include <string.h>
+
+// Helper function to write to a register
+static StatusCode prv_write_register(Adc128d818Storage *storage, uint8_t reg, uint8_t value) {
+  uint8_t data[2] = { reg, value };
+  return i2c_write(storage->i2c_port, storage->i2c_address, data, sizeof(data));
+}
+
+// Helper function to read from a register
+static StatusCode prv_read_register(Adc128d818Storage *storage, uint8_t reg, uint8_t *value) {
+  status_ok_or_return(i2c_write(storage->i2c_port, storage->i2c_address, &reg, 1));
+  return i2c_read(storage->i2c_port, storage->i2c_address, value, 1);
+}
+
+// Initializes the ADC128D818 with the given settings
+StatusCode adc128d818_init(Adc128d818Storage *storage, const Adc128d818Settings *settings) {
+  if (storage == NULL || settings == NULL) {
+    return status_code(STATUS_CODE_INVALID_ARGS);
+  }
+
+  memset(storage, 0, sizeof(Adc128d818Storage));
+  storage->i2c_port = settings->i2c_port;
+  storage->i2c_address = settings->i2c_address;
+  storage->error_handler = settings->error_handler;
+  storage->error_context = settings->error_context;
+
+  // Set default configuration
+  status_ok_or_return(prv_write_register(storage, ADC128D818_REG_CONFIG, ADC128D818_DEFAULT_CONFIG));
+  status_ok_or_return(prv_write_register(storage, ADC128D818_REG_ADV_CONFIG, ADC128D818_DEFAULT_ADV_CONFIG));
+
+  return STATUS_CODE_OK;
+}
+
+// Reads a channel value from the ADC128D818
+StatusCode adc128d818_read_channel(Adc128d818Storage *storage, uint8_t channel, uint16_t *reading) {
+  if (channel >= 8 || storage == NULL || reading == NULL) {
+    return status_code(STATUS_CODE_INVALID_ARGS);
+  }
+
+  uint8_t reg = ADC128D818_REG_CHANNEL_READINGS_START + channel;
+  uint8_t data[2] = { 0 };
+
+  status_ok_or_return(i2c_write(storage->i2c_port, storage->i2c_address, &reg, 1));
+  status_ok_or_return(i2c_read(storage->i2c_port, storage->i2c_address, data, sizeof(data)));
+
+  *reading = ((uint16_t)data[0] << 8) | data[1];
+  return STATUS_CODE_OK;
+}
+
+// Sets the configuration register of the ADC128D818
+StatusCode adc128d818_set_config(Adc128d818Storage *storage, uint8_t config) {
+  return prv_write_register(storage, ADC128D818_REG_CONFIG, config);
+}
+
+// Sets the conversion rate of the ADC128D818
+StatusCode adc128d818_set_conversion_rate(Adc128d818Storage *storage, uint8_t rate) {
+  return prv_write_register(storage, ADC128D818_REG_CONV_RATE, rate);
+}
+
+// Enables or disables a channel on the ADC128D818
+StatusCode adc128d818_set_channel_enable(Adc128d818Storage *storage, uint8_t channel, bool enable) {
+  if (channel >= 8) {
+    return status_code(STATUS_CODE_INVALID_ARGS);
+  }
+
+  uint8_t reg_value = 0;
+  status_ok_or_return(prv_read_register(storage, ADC128D818_REG_CHANNEL_DISABLE, &reg_value));
+
+  if (enable) {
+    reg_value &= ~(1 << channel);
+  } else {
+    reg_value |= (1 << channel);
+  }
+
+  return prv_write_register(storage, ADC128D818_REG_CHANNEL_DISABLE, reg_value);
+}
+
+// Start a single-shot conversion
+StatusCode adc128d818_start_one_shot(Adc128d818Storage *storage) {
+  return prv_write_register(storage, ADC128D818_REG_ONE_SHOT, 1);
+}

platform/arm.py

@@ -1,5 +1,5 @@
 import os
-Import ('FLASH_TYPE', 'BUILD_TYPE')
+import ('FLASH_TYPE', 'BUILD_TYPE')
 
 PLATFORM_DIR = os.getcwd()