Wire using arduino pins in constructor

[jaenrig-ifx]

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[Copilot]

Pull Request Overview

This PR updates the Arduino variant pin definitions to use plain numeric IDs and adjusts TwoWire to accept those pin IDs via its constructor.

• Switch I²C pin macros from HAL-specific names to numeric IDs and expose SDA/SCL constants
• Change TwoWire constructor and members from cyhal_gpio_t to pin_size_t
• Update Wire.cpp to map pin_size_t values through mapping_gpio_pin when calling cyhal_i2c_init

Reviewed Changes

Copilot reviewed 3 out of 3 changed files in this pull request and generated 1 comment.

File	Description
variants/CY8CKIT-062S2-AI/pins_arduino.h	Redefine I²C, SPI, and ADC pins as numeric IDs and add SDA, SCL, A0, A1 aliases
libraries/Wire/src/Wire.h	Update TwoWire constructor signature and member types to use pin_size_t
libraries/Wire/src/Wire.cpp	Use mapping_gpio_pin lookup for SDA/SCL in cyhal_i2c_init

Comments suppressed due to low confidence (3)

variants/CY8CKIT-062S2-AI/pins_arduino.h:44

• [nitpick] Add a comment explaining which physical port this numeric ID (9) corresponds to, e.g. // P9_1 or similar, to aid future maintainers.

#define I2C1_SDA_PIN    9

libraries/Wire/src/Wire.cpp:14

• [nitpick] Consider adding unit tests for this constructor to verify that passing different pin_size_t values initializes sda_pin/scl_pin as expected and triggers the correct HAL mapping.

TwoWire::TwoWire(pin_size_t sda, pin_size_t scl) : sda_pin(sda), scl_pin(scl) {

libraries/Wire/src/Wire.cpp:33

• Ensure that mapping_gpio_pin is declared and populated before use. If this lookup array lives in another translation unit, include its header or declare it extern to avoid unresolved symbol errors.

w_status = cyhal_i2c_init(&i2c_obj, mapping_gpio_pin[sda_pin], mapping_gpio_pin[scl_pin], NULL);