u8 table1[3]="hjw";
u8 table2[2]="00";
void Delay(unsigned short time)//nms
{
unsigned short i, j;
for(; time > 0; time--){
for(j = 0; j < 10; j++){
for(i = 0; i < 1000; i++);
}
}
}
int main(void)
{
//u8 i;
/* System CLOCks Configuration */
RCC_Configuration();
/* NVIC configuration */
NVIC_Configuration();
/* Configure the GPIO ports */
GPIO_Configuration();
LCD1602_init();
ds1302set_time();
while (1)
{
ds1302read_time();
ds1302d_convert();
write1602_Achar(1,2,disp[8]);
write1602_Achar(1,3,disp[9]); //显示 时
write1602_Achar(1,4,0x0a);//':'
write1602_Achar(1,5,disp[10]);
write1602_Achar(1,6,disp[11]);
write1602_Achar(1,7,0x0a);//显示分
write1602_Achar(1,8,disp[12]);
write1602_Achar(1,9,disp[13]);//显示秒
}
}
void RCC_Configuration(void)
{
RCC_DeInit();
/* Enable HSE */
RCC_HSEConfig(RCC_HSE_ON);
/* Wait till HSE is ready */
HSEStartUpStatus = RCC_WaitForHSEStartUp();
if(HSEStartUpStatus == SUCCESS)
{
/* Enable Prefetch Buffer */
FLASH_PrefetchBufferCmd(FLASH_PrefetchBuffer_Enable);
/* Flash 2 wait state */
FLASH_SetLatency(FLASH_Latency_2);
/* HCLK = SYSCLK */
RCC_HCLKConfig(RCC_SYSCLK_Div1);
/* PCLK2 = HCLK */
RCC_PCLK2Config(RCC_HCLK_Div1);
/* PCLK1 = HCLK/2 */
RCC_PCLK1Config(RCC_HCLK_Div2);
/* PLLCLK = 8MHz * 9 = 72 MHz */
RCC_PLLConfig(RCC_PLLSource_HSE_Div1, RCC_PLLMul_9);
/* Enable PLL */
RCC_PLLCmd(ENABLE);
/* Wait till PLL is ready */
while(RCC_GetFlagStatus(RCC_FLAG_PLLRDY) == RESET)
{
}
/* Select PLL as system clock source */
RCC_SYSCLKConfig(RCC_SYSCLKSource_PLLCLK);
/* Wait till PLL is used as system clock source */
while(RCC_GetSYSCLKSource() != 0x08)
{
}
}
/* Enable Key Button GPIO Port, GPIO_LED and AFIO clock */
RCC_APB2PeriphClockCmd(RCC_APB2Periph_GPIOC|RCC_APB2Periph_GPIOA| RCC_APB2Periph_GPIOD | RCC_APB2Periph_GPIOB
| RCC_APB2Periph_AFIO, ENABLE);
}
/*******************************************************************************
* Function Name : GPIO_Configuration
* Description : Configures the different GPIO ports.
* Input : None
* Output : None
* Return : None
*******************************************************************************/
void GPIO_Configuration(void)
{
GPIO_InitTypeDef GPIO_InitStructure;
GPIO_InitStructure.GPIO_Pin =GPIO_Pin_All;
GPIO_InitStructure.GPIO_Speed =GPIO_Speed_50MHz;
GPIO_InitStructure.GPIO_Mode =GPIO_Mode_Out_PP;
GPIO_Init(GPIOB, &GPIO_InitStructure);
}
void NVIC_Configuration(void)
{
//NVIC_InitTypeDef NVIC_InitStructure;
#ifdef VECT_TAB_RAM
/* Set the Vector Table base location at 0x20000000 */
NVIC_SetVectorTable(NVIC_VectTab_RAM, 0x0);
#else /* VECT_TAB_FLASH */
/* Set the Vector Table base location at 0x08000000 */
NVIC_SetVectorTable(NVIC_VectTab_FLASH, 0x0);
#endif
}
本文关键字：暂无联系方式电脑-单片机-自动控制，电子学习 - 基础知识 - 电脑-单片机-自动控制
