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97 lines
2.5 KiB
C
97 lines
2.5 KiB
C
/*
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* This file is part of the MicroPython project, http://micropython.org/
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*
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* The MIT License (MIT)
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*
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* Copyright (c) 2017 Scott Shawcroft for Adafruit Industries
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* Copyright (c) 2019 Lucian Copeland for Adafruit Industries
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*/
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#include <stdint.h>
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#include "supervisor/port.h"
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#include "boards/board.h"
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#include "tick.h"
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#include "common-hal/microcontroller/Pin.h"
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#include "common-hal/busio/I2C.h"
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#include "common-hal/busio/SPI.h"
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#include "common-hal/busio/UART.h"
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#include "common-hal/pulseio/PWMOut.h"
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#include "stm32f4/clocks.h"
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#include "stm32f4/gpio.h"
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#include "stm32f4xx_hal.h"
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safe_mode_t port_init(void) {
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HAL_Init();
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__HAL_RCC_SYSCFG_CLK_ENABLE();
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__HAL_RCC_PWR_CLK_ENABLE();
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stm32f4_peripherals_clocks_init();
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stm32f4_peripherals_gpio_init();
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tick_init();
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return NO_SAFE_MODE;
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}
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void reset_port(void) {
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reset_all_pins();
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i2c_reset();
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spi_reset();
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uart_reset();
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pwmout_reset();
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}
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void reset_to_bootloader(void) {
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}
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void reset_cpu(void) {
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NVIC_SystemReset();
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}
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uint32_t *port_stack_get_limit(void) {
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return &_ebss;
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}
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uint32_t *port_stack_get_top(void) {
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return &_estack;
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}
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extern uint32_t _ebss;
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// Place the word to save just after our BSS section that gets blanked.
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void port_set_saved_word(uint32_t value) {
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_ebss = value;
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}
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uint32_t port_get_saved_word(void) {
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return _ebss;
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}
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void HardFault_Handler(void) {
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reset_into_safe_mode(HARD_CRASH);
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while (true) {
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asm("nop;");
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}
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}
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