简述

中电港萤火工场推出基于兆易创新（GigaDevice）GD32VW553是一款 RISC-V 内核的 32位 MCU 的开源硬件GD32VW553-IOT。具体可查看官方提供的三个技术手册文本 https://www.iceasy.com/product/1874659379209633793

环境搭建

https://www.gd32mcu.com/cn/download?kw=GD32VW5

GD32 All-In-One Programmer ：代码下载软件。

GD32 Embedded Builder：代码开发软件。

IDE

示例代码

#include "gd32vw55x.h"

#include "systick.h"

#include <stdio.h>

#include "main.h"

#include "gd32vw553h_eval.h"

/*!

\brief toggle the led every 500ms

\param[in] none

\param[out] none

\retval none

*/

void led_spark(void)

{

static __IO uint32_t timingdelaylocal = 0U;

if(timingdelaylocal) {

if(timingdelaylocal < 500U) {

gd_eval_led_on(LED2);

gd_eval_led_on(LED3);

} else {

gd_eval_led_off(LED2);

gd_eval_led_off(LED3);

}

timingdelaylocal--;

} else {

timingdelaylocal = 1000U;

}

}

/*!

\brief main function

\param[in] none

\param[out] none

\retval none

*/

int main(void)

{

/* configure systick */

systick_config();

eclic_priority_group_set(ECLIC_PRIGROUP_LEVEL3_PRIO1);

/* initilize the LEDs, USART and key */

gd_eval_led_init(LED1);

gd_eval_led_init(LED2);

gd_eval_led_init(LED3);

gd_eval_com_init(EVAL_COM0);

gd_eval_key_init(KEY_TAMPER_WAKEUP, KEY_MODE_GPIO);

/* print out the clock frequency of system, AHB, APB1 and APB2 */

printf("\r\nCK_SYS is %d\r\n", rcu_clock_freq_get(CK_SYS));

printf("\r\nCK_AHB is %d\r\n", rcu_clock_freq_get(CK_AHB));

printf("\r\nCK_APB1 is %d\r\n", rcu_clock_freq_get(CK_APB1));

printf("\r\nCK_APB2 is %d\r\n", rcu_clock_freq_get(CK_APB2));

while(1) {

if(RESET == gd_eval_key_state_get(KEY_TAMPER_WAKEUP)) {

delay_1ms(50);

if(SET == gd_eval_key_state_get(KEY_TAMPER_WAKEUP)) {

gd_eval_led_toggle(LED1);

}

}

}

}

代码烧录

连线

一定要注意跳线帽连接方式，如图连接，使开发板进入下载模式，

根据图示Type-C口向下，利用跳线帽将BOOT0接VCC (向下)，BOOT1接GND (向上) 【 左侧为BOOT1，右侧为BOOT0 】