mirror of
https://github.com/mytechnotalent/Embedded-Hacking.git
synced 2026-06-10 08:13:57 +02:00
Kevin Thomas
afdc1fa594
- GPIO15 active-low button input with internal pull-up - 20ms software debounce via busy-wait confirmation - LED mirrors button state, UART reports edge transitions - New gpio_config_input_pullup() in GPIO driver - 1555B FLASH, 13 source files, zero warnings
46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
/**
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******************************************************************************
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* @file rp2350_reset_handler.c
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* @author Kevin Thomas
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* @brief Reset handler implementation for RP2350.
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*
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* Entry point after power-on or system reset. Initializes the
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* stack, XOSC, subsystem resets, UART, coprocessor, then
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* branches to main().
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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_reset_handler.h"
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#include "rp2350_stack.h"
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#include "rp2350_xosc.h"
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#include "rp2350_reset.h"
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#include "rp2350_uart.h"
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#include "rp2350_coprocessor.h"
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extern int main(void);
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void __attribute__((naked, noreturn)) Reset_Handler(void)
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{
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__asm__ volatile (
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"bl stack_init\n\t"
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"bl xosc_init\n\t"
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"bl xosc_enable_peri_clk\n\t"
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"bl reset_init_subsystem\n\t"
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"bl uart_release_reset\n\t"
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"bl uart_init\n\t"
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"bl coprocessor_enable\n\t"
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"b main\n\t"
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);
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}
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