STM32u575

原创于 2025-03-11 21:36:54 发布 · 247 阅读

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#stm32 #嵌入式硬件 #单片机

风扇

// 系统时钟初始化  - 不加入会报错 可以尝试一下
void SystemInit(void)
{
  //对地址 0xE000ED88 的内容 进行修改:
  //将0X3向左移动20位 或上 0X3 向左移动22位
  *(unsigned int*) 0xE000ED88|=((3UL << 20U)|(3UL << 22U));
}
int main()
{
	*(unsigned int*)0x56020C8C |=1<<2;
	
	*(unsigned int*)0x52020800 &=~(1<<13);
  *(unsigned int*)0x52020800 |=1<<12;
	*(unsigned int*)0x52020804 &=~(1<<6);
//GPIO_OSPEEDR位27和位26写入00
  *(unsigned int*)0x52020808 &=~(1<<13);
*(unsigned int*)0x52020808 &=~(1<<12);
//GPIO_ODR寄存器位13写入1 高电平
 *(unsigned int*)0x52020814|=(1<<6);
	
  return 0;
}

蜂鸣器

// 系统时钟初始化  - 不加入会报错 可以尝试一下
void SystemInit(void)
{
  //对地址 0xE000ED88 的内容 进行修改:
  //将0X3向左移动20位 或上 0X3 向左移动22位
  *(unsigned int*) 0xE000ED88|=((3UL << 20U)|(3UL << 22U));
}
int main()
{
	*(unsigned int*)0x56020C8C |=1<<0;
	
	*(unsigned int*)0x52020000 &=~(1<<31);
  *(unsigned int*)0x52020000 |=1<<30;
	*(unsigned int*)0x52020004 &=~(1<<15);
//GPIO_OSPEEDR位27和位26写入00
  *(unsigned int*)0x52020008 &=~(1<<31);
*(unsigned int*)0x52020008 &=~(1<<30);
//GPIO_ODR寄存器位13写入1 高电平
 *(unsigned int*)0x52020014|=(1<<15);
	
  return 0;
}