CalvinBackup/Embedded-Hacking
1
0
Fork 0
mirror of https://github.com/mytechnotalent/Embedded-Hacking.git synced 2026-08-29 14:20:46 +02:00
Code Issues Packages Projects Releases Wiki Activity

style: enforce coding standard — headers, @brief on #define, Doxygen on statics, remove _ prefix, max 8 lines per function

Browse Source
This commit is contained in:
Kevin Thomas
2026-04-16 22:45:11 -04:00
parent 0833c32c94
commit 433263eac0
309 changed files with 10453 additions and 6657 deletions
Download Patch File Download Diff File Expand all files Collapse all files
drivers/0x08_lcd1602_cbm/Src/main.c
+41 -31
View File
@@ -1,41 +1,51 @@
/**
******************************************************************************
* @file main.c
* @author Kevin Thomas
* @brief LCD1602 demonstration: static title and live counter display.
*
* Drives a 16x2 HD44780 LCD via a PCF8574 I2C backpack. Line 0
* shows a static title ("Reverse Eng.") and line 1 displays a
* counter that increments every second. The counter value is
* also printed over UART for debugging.
*
* Wiring:
* GPIO0 -> UART TX (USB-to-UART adapter RX)
* GPIO1 -> UART RX (USB-to-UART adapter TX)
* GPIO2 -> PCF8574 backpack SDA (4.7 kohm pull-up to 3.3 V)
* GPIO3 -> PCF8574 backpack SCL (4.7 kohm pull-up to 3.3 V)
* 3.3V -> PCF8574 backpack VCC
* GND -> PCF8574 backpack 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.
*
******************************************************************************
*/
* @file main.c
* @brief LCD1602 demonstration: static title and live counter display.
* @author Kevin Thomas
* @date 2026
*
* Drives a 16x2 HD44780 LCD via a PCF8574 I2C backpack. Line 0
* shows a static title ("Reverse Eng.") and line 1 displays a
* counter that increments every second. The counter value is
* also printed over UART for debugging.
*
* Wiring:
* GPIO0 -> UART TX (USB-to-UART adapter RX)
* GPIO1 -> UART RX (USB-to-UART adapter TX)
* GPIO2 -> PCF8574 backpack SDA (4.7 kohm pull-up to 3.3 V)
* GPIO3 -> PCF8574 backpack SCL (4.7 kohm pull-up to 3.3 V)
* 3.3V -> PCF8574 backpack VCC
* GND -> PCF8574 backpack GND
*
* MIT License
*
* Copyright (c) 2026 Kevin Thomas
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "rp2350_i2c.h"
#include "rp2350_lcd1602.h"
#include "rp2350_uart.h"
#include "rp2350_xosc.h"
#include "rp2350_delay.h"
/** @brief Delay between LCD counter updates in milliseconds */
#define COUNT_DELAY_MS 1000
/**