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127
docs/GD32F1x0_Firmware_Library_v3.1.0/Examples/PMU/Deepsleep_wakeup_exti/gd32f1x0_it.c Normal file
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/*!
\file gd32f1x0_it.c
\brief interrupt service routines
*/
/*
Copyright (C) 2017 GigaDevice
2014-12-26, V1.0.0, platform GD32F1x0(x=3,5)
2016-01-15, V2.0.0, platform GD32F1x0(x=3,5,7,9)
2016-04-30, V3.0.0, firmware update for GD32F1x0(x=3,5,7,9)
2017-06-19, V3.1.0, firmware update for GD32F1x0(x=3,5,7,9)
*/
#include "gd32f1x0_it.h"
#include "systick.h"
#include "main.h"
/*!
\brief this function handles NMI exception
\param[in] none
\param[out] none
\retval none
*/
void NMI_Handler(void)
{
}
/*!
\brief this function handles HardFault exception
\param[in] none
\param[out] none
\retval none
*/
void HardFault_Handler(void)
{
/* if Hard Fault exception occurs, go to infinite loop */
while (1);
}
/*!
\brief this function handles MemManage exception
\param[in] none
\param[out] none
\retval none
*/
void MemManage_Handler(void)
{
/* if Memory Manage exception occurs, go to infinite loop */
while (1);
}
/*!
\brief this function handles BusFault exception
\param[in] none
\param[out] none
\retval none
*/
void BusFault_Handler(void)
{
/* if Bus Fault exception occurs, go to infinite loop */
while (1);
}
/*!
\brief this function handles UsageFault exception
\param[in] none
\param[out] none
\retval none
*/
void UsageFault_Handler(void)
{
/* if Usage Fault exception occurs, go to infinite loop */
while (1);
}
/*!
\brief this function handles SVC exception
\param[in] none
\param[out] none
\retval none
*/
void SVC_Handler(void)
{
}
/*!
\brief this function handles DebugMon exception
\param[in] none
\param[out] none
\retval none
*/
void DebugMon_Handler(void)
{
}
/*!
\brief this function handles PendSV exception
\param[in] none
\param[out] none
\retval none
*/
void PendSV_Handler(void)
{
}
/*!
\brief this function handles SysTick exception
\param[in] none
\param[out] none
\retval none
*/
void SysTick_Handler(void)
{
led_spark();
}
/*!
\brief this function handles EXTI4_15 exception
\param[in] none
\param[out] none
\retval none
*/
void EXTI4_15_IRQHandler(void)
{
if(SET == exti_interrupt_flag_get(EXTI_13))
exti_interrupt_flag_clear(EXTI_13);
}

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docs/GD32F1x0_Firmware_Library_v3.1.0/Examples/PMU/Deepsleep_wakeup_exti/gd32f1x0_it.h Normal file
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/*!
\file gd32f1x0_it.h
\brief the header file of the ISR
*/
/*
Copyright (C) 2017 GigaDevice
2014-12-26, V1.0.0, platform GD32F1x0(x=3,5)
2016-01-15, V2.0.0, platform GD32F1x0(x=3,5,7,9)
2016-04-30, V3.0.0, firmware update for GD32F1x0(x=3,5,7,9)
2017-06-19, V3.1.0, firmware update for GD32F1x0(x=3,5,7,9)
*/
#ifndef GD32F1X0_IT_H
#define GD32F1X0_IT_H
#include "gd32f1x0.h"
/* function declarations */
/* NMI handle function */
void NMI_Handler(void);
/* HardFault handle function */
void HardFault_Handler(void);
/* MemManage handle function */
void MemManage_Handler(void);
/* BusFault handle function */
void BusFault_Handler(void);
/* UsageFault handle function */
void UsageFault_Handler(void);
/* SVC handle function */
void SVC_Handler(void);
/* DebugMon handle function */
void DebugMon_Handler(void);
/* PendSV handle function */
void PendSV_Handler(void);
/* SysTick handle function */
void SysTick_Handler(void);
/* EXTI4_15 handle function */
void EXTI4_15_IRQHandler(void);
#endif /* GD32F1X0_IT_H */

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docs/GD32F1x0_Firmware_Library_v3.1.0/Examples/PMU/Deepsleep_wakeup_exti/gd32f1x0_libopt.h Normal file
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/*!
\file gd32f1x0_libopt.h
\brief library optional for gd32f1x0
*/
/*
Copyright (C) 2017 GigaDevice
2014-12-26, V1.0.0, platform GD32F1x0(x=3,5)
2016-01-15, V2.0.0, platform GD32F1x0(x=3,5,7,9)
2016-04-30, V3.0.0, firmware update for GD32F1x0(x=3,5,7,9)
2017-06-19, V3.1.0, firmware update for GD32F1x0(x=3,5,7,9)
*/
#ifndef GD32F1X0_LIBOPT_H
#define GD32F1X0_LIBOPT_H
#include "gd32f1x0_adc.h"
#include "gd32f1x0_cec.h"
#include "gd32f1x0_crc.h"
#include "gd32f1x0_cmp.h"
#include "gd32f1x0_dac.h"
#include "gd32f1x0_dbg.h"
#include "gd32f1x0_dma.h"
#include "gd32f1x0_exti.h"
#include "gd32f1x0_fmc.h"
#include "gd32f1x0_gpio.h"
#include "gd32f1x0_syscfg.h"
#include "gd32f1x0_i2c.h"
#include "gd32f1x0_fwdgt.h"
#include "gd32f1x0_pmu.h"
#include "gd32f1x0_rcu.h"
#include "gd32f1x0_rtc.h"
#include "gd32f1x0_spi.h"
#include "gd32f1x0_timer.h"
#include "gd32f1x0_usart.h"
#include "gd32f1x0_wwdgt.h"
#include "gd32f1x0_misc.h"
#include "gd32f1x0_tsi.h"
#ifdef GD32F170_190
#include "gd32f1x0_slcd.h"
#include "gd32f1x0_opa.h"
#include "gd32f1x0_ivref.h"
#include "gd32f1x0_can.h"
#endif /* GD32F170_190 */
#endif /* GD32F1X0_LIBOPT_H */

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/*!
\file main.c
\brief deepsleep wakeup through exti interrupt
*/
/*
Copyright (C) 2017 GigaDevice
2014-12-26, V1.0.0, platform GD32F1x0(x=3,5)
2016-01-15, V2.0.0, platform GD32F1x0(x=3,5,7,9)
2016-04-30, V3.0.0, firmware update for GD32F1x0(x=3,5,7,9)
2017-06-19, V3.1.0, firmware update for GD32F1x0(x=3,5,7,9)
*/
#include "gd32f1x0.h"
#include "gd32f1x0_eval.h"
#include "systick.h"
#include "main.h"
void led_config(void);
/*!
\brief main function
\param[in] none
\param[out] none
\retval none
*/
int main(void)
{
/* systick config */
systick_config();
/* led config */
led_config();
/* clock enable */
rcu_periph_clock_enable(RCU_PMU);
/* wakeup key config */
gd_eval_key_init(KEY_WAKEUP,KEY_MODE_GPIO);
/* tamper key EXTI config */
gd_eval_key_init(KEY_TAMPER,KEY_MODE_EXTI);
/* press wakeup key to enter deepsleep mode and use tamper key generate a exti interrupt to wakeup mcu */
while(1){
if(RESET == gpio_input_bit_get(WAKEUP_KEY_GPIO_PORT,WAKEUP_KEY_PIN))
pmu_to_deepsleepmode(PMU_LDO_LOWPOWER,WFI_CMD);
}
}
/*!
\brief toggle the led
\param[in] none
\param[out] none
\retval none
*/
void led_spark(void)
{
static __IO uint32_t timingdelaylocal = 0;
if (timingdelaylocal != 0x00){
if(timingdelaylocal < 200){
gd_eval_led_on(LED1);
gd_eval_led_on(LED2);
gd_eval_led_on(LED3);
gd_eval_led_on(LED4);
}else{
gd_eval_led_off(LED1);
gd_eval_led_off(LED2);
gd_eval_led_off(LED3);
gd_eval_led_off(LED4);
}
timingdelaylocal--;
}else{
timingdelaylocal = 400;
}
}
/*!
\brief led config
\param[in] none
\param[out] none
\retval none
*/
void led_config(void)
{
gd_eval_led_init (LED1);
gd_eval_led_init (LED2);
gd_eval_led_init (LED3);
gd_eval_led_init (LED4);
}

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/*!
\file main.c
\brief the header file of the main
*/
/*
Copyright (C) 2017 GigaDevice
2014-12-26, V1.0.0, platform GD32F1x0(x=3,5)
2016-01-15, V2.0.0, platform GD32F1x0(x=3,5,7,9)
2016-04-30, V3.0.0, firmware update for GD32F1x0(x=3,5,7,9)
2017-06-19, V3.1.0, firmware update for GD32F1x0(x=3,5,7,9)
*/
#ifndef MAIN_H
#define MAIN_H
/* led spark function */
void led_spark(void);
#endif

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/*!
\file readme.txt
\brief description of the deepsleep wakeup through exti demo
*/
/*
Copyright (C) 2017 GigaDevice
2014-12-26, V1.0.0, platform GD32F1x0(x=3,5)
2016-01-15, V2.0.0, platform GD32F1x0(x=3,5,7,9)
2016-04-30, V3.0.0, firmware update for GD32F1x0(x=3,5,7,9)
2017-06-19, V3.1.0, firmware update for GD32F1x0(x=3,5,7,9)
*/
This example is based on the GD32150R-EVAL/GD32190R-EVAL board, it shows pmu how to
enter deepsleep mode and wakeup it. Press wakeup key to enter deepsleep mode ,led stop flashing.
When you press tamper key to generate an exti interrupt , mcu will be wakeuped from deepsleep mode ,
led sparks again. But the led sparks slower, because at this time IRC8M is the system clock.

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/*!
\file systick.c
\brief the systick configuration file
*/
/*
Copyright (C) 2017 GigaDevice
2014-12-26, V1.0.0, platform GD32F1x0(x=3,5)
2016-01-15, V2.0.0, platform GD32F1x0(x=3,5,7,9)
2016-04-30, V3.0.0, firmware update for GD32F1x0(x=3,5,7,9)
2017-06-19, V3.1.0, firmware update for GD32F1x0(x=3,5,7,9)
*/
#include "gd32f1x0.h"
#include "systick.h"
static uint32_t delay;
/*!
\brief configure systick
\param[in] none
\param[out] none
\retval none
*/
void systick_config(void)
{
/* setup systick timer for 1000Hz interrupts */
if (SysTick_Config(SystemCoreClock / 1000))
{
/* capture error */
while (1);
}
/* configure the systick handler priority */
NVIC_SetPriority(SysTick_IRQn, 0x00);
}
/*!
\brief delay a time in milliseconds
\param[in] count: count in milliseconds
\param[out] none
\retval none
*/
void delay_1ms(uint32_t count)
{
delay = count;
while(0 != delay);
}
/*!
\brief delay decrement
\param[in] none
\param[out] none
\retval none
*/
void delay_decrement(void)
{
if (0 != delay){
delay--;
}
}

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/*!
\file systick.h
\brief the header file of systick
*/
/*
Copyright (C) 2017 GigaDevice
2014-12-26, V1.0.0, platform GD32F1x0(x=3,5)
2016-01-15, V2.0.0, platform GD32F1x0(x=3,5,7,9)
2016-04-30, V3.0.0, firmware update for GD32F1x0(x=3,5,7,9)
2017-06-19, V3.1.0, firmware update for GD32F1x0(x=3,5,7,9)
*/
#ifndef SYS_TICK_H
#define SYS_TICK_H
#include <stdint.h>
/* configure systick */
void systick_config(void);
/* delay a time in milliseconds */
void delay_1ms(uint32_t count);
/* delay decrement */
void delay_decrement(void);
#endif /* SYS_TICK_H */

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docs/GD32F1x0_Firmware_Library_v3.1.0/Examples/PMU/Low_voltage_detector/gd32f1x0_it.c Normal file
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/*!
\file gd32f1x0_it.c
\brief interrupt service routines
*/
/*
Copyright (C) 2017 GigaDevice
2014-12-26, V1.0.0, platform GD32F1x0(x=3,5)
2016-01-15, V2.0.0, platform GD32F1x0(x=3,5,7,9)
2016-04-30, V3.0.0, firmware update for GD32F1x0(x=3,5,7,9)
2017-06-19, V3.1.0, firmware update for GD32F1x0(x=3,5,7,9)
*/
#include "gd32f1x0_it.h"
#include "gd32f1x0_eval.h"
/*!
\brief this function handles NMI exception
\param[in] none
\param[out] none
\retval none
*/
void NMI_Handler(void)
{
}
/*!
\brief this function handles HardFault exception
\param[in] none
\param[out] none
\retval none
*/
void HardFault_Handler(void)
{
/* if Hard Fault exception occurs, go to infinite loop */
while (1);
}
/*!
\brief this function handles MemManage exception
\param[in] none
\param[out] none
\retval none
*/
void MemManage_Handler(void)
{
/* if Memory Manage exception occurs, go to infinite loop */
while (1);
}
/*!
\brief this function handles BusFault exception
\param[in] none
\param[out] none
\retval none
*/
void BusFault_Handler(void)
{
/* if Bus Fault exception occurs, go to infinite loop */
while (1);
}
/*!
\brief this function handles UsageFault exception
\param[in] none
\param[out] none
\retval none
*/
void UsageFault_Handler(void)
{
/* if Usage Fault exception occurs, go to infinite loop */
while (1);
}
/*!
\brief this function handles SVC exception
\param[in] none
\param[out] none
\retval none
*/
void SVC_Handler(void)
{
}
/*!
\brief this function handles DebugMon exception
\param[in] none
\param[out] none
\retval none
*/
void DebugMon_Handler(void)
{
}
/*!
\brief this function handles PendSV exception
\param[in] none
\param[out] none
\retval none
*/
void PendSV_Handler(void)
{
}
/*!
\brief this function handles SysTick exception
\param[in] none
\param[out] none
\retval none
*/
void SysTick_Handler(void)
{
}
/*!
\brief this function handles LVD exception
\param[in] none
\param[out] none
\retval none
*/
void LVD_IRQHandler(void)
{
if(RESET != exti_interrupt_flag_get(EXTI_16)){
gd_eval_led_toggle(LED1);
exti_interrupt_flag_clear(EXTI_16);
}
}

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/*!
\file gd32f1x0_it.h
\brief the header file of the ISR
*/
/*
Copyright (C) 2017 GigaDevice
2014-12-26, V1.0.0, platform GD32F1x0(x=3,5)
2016-01-15, V2.0.0, platform GD32F1x0(x=3,5,7,9)
2016-04-30, V3.0.0, firmware update for GD32F1x0(x=3,5,7,9)
2017-06-19, V3.1.0, firmware update for GD32F1x0(x=3,5,7,9)
*/
#ifndef GD32F1X0_IT_H
#define GD32F1X0_IT_H
#include "gd32f1x0.h"
/* function declarations */
/* NMI handle function */
void NMI_Handler(void);
/* HardFault handle function */
void HardFault_Handler(void);
/* MemManage handle function */
void MemManage_Handler(void);
/* BusFault handle function */
void BusFault_Handler(void);
/* UsageFault handle function */
void UsageFault_Handler(void);
/* SVC handle function */
void SVC_Handler(void);
/* DebugMon handle function */
void DebugMon_Handler(void);
/* PendSV handle function */
void PendSV_Handler(void);
/* SysTick handle function */
void SysTick_Handler(void);
/* LVD handle function */
void LVD_IRQHandler(void);
#endif /* GD32F1X0_IT_H */

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/*!
\file gd32f1x0_libopt.h
\brief library optional for gd32f1x0
*/
/*
Copyright (C) 2017 GigaDevice
2014-12-26, V1.0.0, platform GD32F1x0(x=3,5)
2016-01-15, V2.0.0, platform GD32F1x0(x=3,5,7,9)
2016-04-30, V3.0.0, firmware update for GD32F1x0(x=3,5,7,9)
2017-06-19, V3.1.0, firmware update for GD32F1x0(x=3,5,7,9)
*/
#ifndef GD32F1X0_LIBOPT_H
#define GD32F1X0_LIBOPT_H
#include "gd32f1x0_adc.h"
#include "gd32f1x0_cec.h"
#include "gd32f1x0_crc.h"
#include "gd32f1x0_cmp.h"
#include "gd32f1x0_dac.h"
#include "gd32f1x0_dbg.h"
#include "gd32f1x0_dma.h"
#include "gd32f1x0_exti.h"
#include "gd32f1x0_fmc.h"
#include "gd32f1x0_gpio.h"
#include "gd32f1x0_syscfg.h"
#include "gd32f1x0_i2c.h"
#include "gd32f1x0_fwdgt.h"
#include "gd32f1x0_pmu.h"
#include "gd32f1x0_rcu.h"
#include "gd32f1x0_rtc.h"
#include "gd32f1x0_spi.h"
#include "gd32f1x0_timer.h"
#include "gd32f1x0_usart.h"
#include "gd32f1x0_wwdgt.h"
#include "gd32f1x0_misc.h"
#include "gd32f1x0_tsi.h"
#ifdef GD32F170_190
#include "gd32f1x0_slcd.h"
#include "gd32f1x0_opa.h"
#include "gd32f1x0_ivref.h"
#include "gd32f1x0_can.h"
#endif /* GD32F170_190 */
#endif /* GD32F1X0_LIBOPT_H */

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/*!
\file main.c
\brief low voltage detector
*/
/*
Copyright (C) 2017 GigaDevice
2014-12-26, V1.0.0, platform GD32F1x0(x=3,5)
2016-01-15, V2.0.0, platform GD32F1x0(x=3,5,7,9)
2016-04-30, V3.0.0, firmware update for GD32F1x0(x=3,5,7,9)
2017-06-19, V3.1.0, firmware update for GD32F1x0(x=3,5,7,9)
*/
#include "gd32f1x0.h"
#include <stdio.h>
#include "gd32f1x0_eval.h"
/*!
\brief main function
\param[in] none
\param[out] none
\retval none
*/
int main(void)
{
/* NVIC config */
nvic_priority_group_set(NVIC_PRIGROUP_PRE0_SUB4);
nvic_irq_enable(LVD_IRQn,0,0);
/* clock enable */
rcu_periph_clock_enable(RCU_PMU);
/* led1 config */
gd_eval_led_init (LED1);
/* led1 turn on */
gd_eval_led_on(LED1);
/* EXTI_16 config */
exti_init(EXTI_16, EXTI_INTERRUPT, EXTI_TRIG_BOTH);
/* configure the lvd threshold to 2.9v(gd32f130_150) or 4.5v(gd32f170_190), and enable the lvd */
pmu_lvd_select(PMU_LVDT_7);
while(1);
}

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/*!
\file readme.txt
\brief description of the low voltage detector demo
*/
/*
Copyright (C) 2017 GigaDevice
2014-12-26, V1.0.0, platform GD32F1x0(x=3,5)
2016-01-15, V2.0.0, platform GD32F1x0(x=3,5,7,9)
2016-04-30, V3.0.0, firmware update for GD32F1x0(x=3,5,7,9)
2017-06-19, V3.1.0, firmware update for GD32F1x0(x=3,5,7,9)
*/
This example is based on the GD32150R-EVAL/GD32190R-EVAL board, it shows how to use low
voltage detector. If VDD/VDDA is higher or lower than the LVD threshold, then a lvd event will occur.
The event is internally connected to the EXTI line 16 and can generate an interrupt if enabled through
the EXTI registers. Use external power connect 3.3v pin and GND pin of the board , adjust voltage higher
or lower than the LVD threshold: 2.9v(GD32150R-EVAL) or 4.5v(GD32190R-EVAL), led1 will toggle.

47
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/*!
\file gd32f1x0_libopt.h
\brief library optional for gd32f1x0
*/
/*
Copyright (C) 2017 GigaDevice
2014-12-26, V1.0.0, platform GD32F1x0(x=3,5)
2016-01-15, V2.0.0, platform GD32F1x0(x=3,5,7,9)
2016-04-30, V3.0.0, firmware update for GD32F1x0(x=3,5,7,9)
2017-06-19, V3.1.0, firmware update for GD32F1x0(x=3,5,7,9)
*/
#ifndef GD32F1X0_LIBOPT_H
#define GD32F1X0_LIBOPT_H
#include "gd32f1x0_adc.h"
#include "gd32f1x0_cec.h"
#include "gd32f1x0_crc.h"
#include "gd32f1x0_cmp.h"
#include "gd32f1x0_dac.h"
#include "gd32f1x0_dbg.h"
#include "gd32f1x0_dma.h"
#include "gd32f1x0_exti.h"
#include "gd32f1x0_fmc.h"
#include "gd32f1x0_gpio.h"
#include "gd32f1x0_syscfg.h"
#include "gd32f1x0_i2c.h"
#include "gd32f1x0_fwdgt.h"
#include "gd32f1x0_pmu.h"
#include "gd32f1x0_rcu.h"
#include "gd32f1x0_rtc.h"
#include "gd32f1x0_spi.h"
#include "gd32f1x0_timer.h"
#include "gd32f1x0_usart.h"
#include "gd32f1x0_wwdgt.h"
#include "gd32f1x0_misc.h"
#include "gd32f1x0_tsi.h"
#ifdef GD32F170_190
#include "gd32f1x0_slcd.h"
#include "gd32f1x0_opa.h"
#include "gd32f1x0_ivref.h"
#include "gd32f1x0_can.h"
#endif /* GD32F170_190 */
#endif /* GD32F1X0_LIBOPT_H */

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/*!
\file main.c
\brief standby wakeup through wakeup pin
*/
/*
Copyright (C) 2017 GigaDevice
2014-12-26, V1.0.0, platform GD32F1x0(x=3,5)
2016-01-15, V2.0.0, platform GD32F1x0(x=3,5,7,9)
2016-04-30, V3.0.0, firmware update for GD32F1x0(x=3,5,7,9)
2017-06-19, V3.1.0, firmware update for GD32F1x0(x=3,5,7,9)
*/
#include "gd32f1x0.h"
#include <stdio.h>
#include "gd32f1x0_eval.h"
void led_config(void);
/*!
\brief main function
\param[in] none
\param[out] none
\retval none
*/
int main(void)
{
/* clock enable */
rcu_periph_clock_enable(RCU_PMU);
/* led configuration and turn on all led */
led_config();
gd_eval_led_on(LED1);
gd_eval_led_on(LED3);
gd_eval_led_on(LED2);
gd_eval_led_on(LED4);
/* tamper key configuration */
gd_eval_key_init(KEY_TAMPER,KEY_MODE_GPIO);
/* wakeup pin enable */
pmu_wakeup_pin_enable(PMU_WAKEUP_PIN0);
/* press tamper key to enter standby mode and use wakeup key to wakeup mcu */
while(1){
if(RESET == gpio_input_bit_get(TAMPER_KEY_GPIO_PORT,TAMPER_KEY_PIN))
pmu_to_standbymode(WFI_CMD);
}
}
/*!
\brief configure led
\param[in] none
\param[out] none
\retval none
*/
void led_config(void)
{
gd_eval_led_init (LED1);
gd_eval_led_init (LED2);
gd_eval_led_init (LED3);
gd_eval_led_init (LED4);
}

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/*!
\file readme.txt
\brief description of the standby wakeup throuht pin demo
*/
/*
Copyright (C) 2017 GigaDevice
2014-12-26, V1.0.0, platform GD32F1x0(x=3,5)
2016-01-15, V2.0.0, platform GD32F1x0(x=3,5,7,9)
2016-04-30, V3.0.0, firmware update for GD32F1x0(x=3,5,7,9)
2017-06-19, V3.1.0, firmware update for GD32F1x0(x=3,5,7,9)
*/
This example is based on the GD32150R-EVAL/GD32190R-EVAL board, it shows pmu how to
enter standby mode and wakeup it.Press tamper key enter standby mode ,led turn off.
When you press wakeup key, mcu will be wakeuped from standby mode, led will be turn on.
when exit from the standby mode, a power-on reset occurs and the mcu will execute
instruction code from the 0x00000000 address.