- Modified shell_port.c to replace interrupt-based UART reception with DMA.
- Introduced a DMA buffer for UART data and adjusted the shell buffer handling.
- Added idle interrupt handling to process incoming data from the DMA buffer.
- Updated freertos_f407.ioc to configure DMA for USART1 RX and TX.
- Enabled necessary NVIC interrupts for DMA streams associated with USART1.
- Removed the shell task handle from app.c as it is no longer needed.
- Moved the shell task creation to shell_port.c with updated parameters.
- Ensured the shell task is created with appropriate stack size and priority.
- Introduced lvm.h for Lua virtual machine definitions, including functions for type conversion, fast table access, and integer operations.
- Implemented lzio.c and lzio.h for buffered stream handling, providing functionalities for reading from streams and managing buffers.
- Added necessary macros and function declarations to support efficient stream operations and memory management.