generated from hulk/gd32f4xx_template_cmake_vscode
24 lines
693 B
C
24 lines
693 B
C
#include "pwr_hold.h"
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#include "gd32f4xx_rcu.h"
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#include "gd32f4xx_gpio.h"
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#include "board_config.h"
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void pwr_hold_init(void) {
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/* 使能 GPIO 时钟，推挽输出高（PMOS 导通，维持供电） */
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rcu_periph_clock_enable(PWR_HOLD_RCU);
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gpio_mode_set(PWR_HOLD_PORT, GPIO_MODE_OUTPUT, GPIO_PUPD_NONE, PWR_HOLD_PIN);
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gpio_output_options_set(PWR_HOLD_PORT, GPIO_OTYPE_PP, GPIO_OSPEED_50MHZ, PWR_HOLD_PIN);
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gpio_bit_set(PWR_HOLD_PORT, PWR_HOLD_PIN);
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}
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void pwr_hold_on(void) {
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gpio_bit_set(PWR_HOLD_PORT, PWR_HOLD_PIN);
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}
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void pwr_hold_off(void) {
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/* 软关机：置低后系统失电 */
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gpio_bit_reset(PWR_HOLD_PORT, PWR_HOLD_PIN);
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while (1) {
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}
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}
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