ESP32-C6: Implement UART/SPI Drivers & ThreadX Dynamic Memory Allocation

[alieissa-commits]

Description

Configure low-level UART and SPI peripheral interfaces on the ESP32-C6 using ESP-IDF driver libraries, and integrate ThreadX dynamic memory primitives (TX_BYTE_POOL) to support real-time data buffering.

Tasks

• Initialize the UART console and SPI peripheral drivers in the board abstraction layer.
• Configure a ThreadX TX_BYTE_POOL in internal SRAM to manage dynamic heap allocations.
• Implement thread-safe dynamic memory allocation wrapper functions.
• Set up hardware status indicators mapping to the board's built-in RGB LED.
• Verify memory allocation and release under heavy simulation load to ensure zero memory fragmentation or leaks.