mirror of
https://github.com/mytechnotalent/Embedded-Hacking.git
synced 2026-07-15 16:37:28 +02:00
Kevin Thomas
066c69f24b
Public function docstrings belong exclusively in .h headers per coding convention. Only static helper functions and static variables retain docstrings in .c files. Removed 413 duplicate docstrings across 185 files (15 CBM + 15 C SDK projects). All 30 projects rebuild with zero errors.
43 lines
1.3 KiB
C
43 lines
1.3 KiB
C
/**
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******************************************************************************
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* @file main.c
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* @author Kevin Thomas
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* @brief UART demonstration: echo received characters in uppercase.
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*
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* Demonstrates hardware UART0 using the bare-metal UART driver.
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* Characters typed into a terminal via a USB-to-UART adapter
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* are echoed back in uppercase.
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*
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* Wiring:
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* GPIO0 (TX) -> USB-to-UART adapter RX
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* GPIO1 (RX) -> USB-to-UART adapter TX
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* GND -> USB-to-UART adapter GND
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*
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******************************************************************************
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* @attention
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*
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* Copyright (c) 2026 Kevin Thomas.
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* All rights reserved.
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*
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* This software is licensed under terms that can be found in the LICENSE file
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* in the root directory of this software component.
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* If no LICENSE file comes with this software, it is provided AS-IS.
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*
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******************************************************************************
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*/
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#include "rp2350_uart.h"
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int main(void)
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{
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uart_puts("UART driver ready (115200 8N1)\r\n");
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uart_puts("Type characters to echo them back in UPPERCASE:\r\n");
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while (1) {
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if (uart_is_readable()) {
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char c = uart_getchar();
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char upper = uart_to_upper(c);
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uart_putchar(upper);
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}
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}
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}
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