mirror of
https://github.com/mytechnotalent/Embedded-Hacking.git
synced 2026-05-20 06:44:41 +02:00
Kevin Thomas
d072ec5946
- Restructure flat files into Inc/ (headers) and Src/ (sources) - Replace constants.h with rp2350.h register layer (datasheet-verified) - Add full Doxygen docstrings on all files, functions, and structs - Replace build.bat/clean.bat with cross-platform Makefile - Fix GPIO_IN offset (0x004), XOSC COUNT offset (0x10), SRAM size (520K) - Rename blink_* API to led_* (name after peripheral, not feature) - Build outputs to build/ directory - Cross-platform .vscode configs (Windows/macOS/Linux)
47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
/**
|
|
******************************************************************************
|
|
* @file main.c
|
|
* @author Kevin Thomas
|
|
* @brief UART demonstration: echo received characters in uppercase.
|
|
*
|
|
* Demonstrates hardware UART0 using the bare-metal UART driver.
|
|
* Characters typed into a terminal via a USB-to-UART adapter
|
|
* are echoed back in uppercase.
|
|
*
|
|
* Wiring:
|
|
* GPIO0 (TX) -> USB-to-UART adapter RX
|
|
* GPIO1 (RX) -> USB-to-UART adapter TX
|
|
* GND -> USB-to-UART adapter GND
|
|
*
|
|
******************************************************************************
|
|
* @attention
|
|
*
|
|
* Copyright (c) 2026 Kevin Thomas.
|
|
* All rights reserved.
|
|
*
|
|
* This software is licensed under terms that can be found in the LICENSE file
|
|
* in the root directory of this software component.
|
|
* If no LICENSE file comes with this software, it is provided AS-IS.
|
|
*
|
|
******************************************************************************
|
|
*/
|
|
|
|
#include "rp2350_uart.h"
|
|
|
|
/**
|
|
* @brief Application entry point for the UART uppercase echo demo.
|
|
* @retval int does not return
|
|
*/
|
|
int main(void)
|
|
{
|
|
uart_puts("UART driver ready (115200 8N1)\r\n");
|
|
uart_puts("Type characters to echo them back in UPPERCASE:\r\n");
|
|
while (1) {
|
|
if (uart_is_readable()) {
|
|
char c = uart_getchar();
|
|
char upper = uart_to_upper(c);
|
|
uart_putchar(upper);
|
|
}
|
|
}
|
|
}
|