void main(void){enableInterrupts();Sysclk_Init();LED_Init();Uart1_Init();printf("This is a STM8 code!!!\r\n");while (1){if(secondClock_flag){secondClock_flag = 0;printf("This is a STM8 code!!!\r\n");}if(calculate_flag){calculate_flag = 0;printf("a minute\r\n");}}
}

#include "sysclk.h"volatile u8 fac_us=0;u8 secondClock_flag = 0;
u8 calculate_flag = 0;void delay_us(u16 nus)
{__asm(
"PUSH A          \n"
"DELAY_XUS:      \n"
"LD A,fac_us     \n"
"DELAY_US_1:     \n"
"NOP             \n"
"DEC A           \n"
"JRNE DELAY_US_1 \n"
"NOP             \n"
"DECW X          \n"
"JRNE DELAY_XUS  \n"
"POP A           \n"
);
}void delay_ms(u32 nms)
{u8 t;if(nms>65){t=nms/65;while(t--)delay_us(65000);nms=nms%65;}delay_us(nms*1000);
}void delay_init(u8 clk)
{if(clk>16)fac_us=(16-4)/4;else if(clk>4)fac_us=(clk-4)/4; else fac_us=1;
}void TIM2_Init(void)
{CLK_PeripheralClockConfig(CLK_Peripheral_TIM2,ENABLE);TIM2_TimeBaseInit(TIM2_Prescaler_16,TIM2_CounterMode_Up,1000);　　//将系统时钟16分频得到1Mhz，计数1000(或999，未细究)则得到一个每ms进一次的中断，TIM2_ARRPreloadConfig(ENABLE);TIM2_ITConfig(TIM2_IT_Update,ENABLE);TIM2_Cmd(ENABLE);
}void Sysclk_Init(void)
{CLK_HSICmd(ENABLE);CLK_SYSCLKSourceConfig(CLK_SYSCLKSource_HSI);　　//选择HIS内部晶振，CLK_SYSCLKDivConfig(CLK_SYSCLKDiv_1);　　//STM8，HSI为16Mhz，这里1分频即不分频TIM2_Init();delay_init(16);　　//参数是系统时钟，这里是16Mhz所以参数为16
}

#include "uart.h"/*** @brief  Configure USART peripheral  * @param  None* @retval None*/
void Uart1_Init(void)
{/* USART1 configured as follow:- BaudRate = 115200 baud  - Word Length = 8 Bits- One Stop Bit- Odd parity- Receive and transmit enabled- USART Clock disabled*//* Enable USART clock */CLK_PeripheralClockConfig(CLK_Peripheral_USART1, ENABLE);/* USART1 Tx- Rx remapping to PA2- PA3 */SYSCFG_REMAPDeInit();SYSCFG_REMAPPinConfig(REMAP_Pin_USART1TxRxPortA, ENABLE);/* Configure USART Tx pin output*/GPIO_Init(GPIOA, GPIO_Pin_2, GPIO_Mode_Out_PP_High_Fast);/* Configure USART Rx pin input*/GPIO_Init(GPIOA, GPIO_Pin_3, GPIO_Mode_In_PU_No_IT);/* RESET USART1 */USART_DeInit(USART1);/* USART configuration */USART_Init(USART1, (u32)115200, USART_WordLength_8b, USART_StopBits_1, USART_Parity_No, USART_Mode_Tx|USART_Mode_Rx);/* Enable the USART Receive interrupt: this interrupt is generated when the USARTreceive data register is not empty */USART_ClearITPendingBit(USART1, USART_IT_RXNE);USART_ITConfig(USART1, USART_IT_RXNE, ENABLE);/* Enable the USART Transmit complete interrupt: this interrupt is generated when the USARTtransmit Shift Register is empty *///USART_ITConfig(EVAL_COM1, USART_IT_TC, ENABLE);/* Enable USART */USART_Cmd(USART1, ENABLE);
}/* 发送一个字节 */
void UART1_SendByte(u8 data)
{USART_SendData8(USART1, data);while (USART_GetFlagStatus(USART1, USART_FLAG_TC) == RESET);
}/* 发送len个字符 */
void UART1_SendStr(u8 *str)
{while(*str != '\0')    {    UART1_SendByte(*str++);}
}/* 接收一个字符 */
u8 UART1_ReceiveByte(void)
{u8 UART1_RX_BUF; while (USART_GetFlagStatus(USART1, USART_FLAG_RXNE) == RESET);UART1_RX_BUF = USART_ReceiveData8(USART1);return  UART1_RX_BUF;
}#ifdef _IAR_
int fputc(int ch, FILE *f)
{UART1_SendByte(ch);return (ch);
}
#else
PUTCHAR_PROTOTYPE
{UART1_SendByte(c);return (c);
}
#endifGETCHAR_PROTOTYPE
{
#ifdef _COSMIC_char c = 0;
#elseint c = 0;
#endif/* Loop until the Read data register flag is SET */while (USART_GetFlagStatus(USART1, USART_FLAG_RXNE) == RESET);c = USART_ReceiveData8(USART1);return (c);
}

#ifndef __UART_H
#define __UART_H/* 包含系统头文件 */
#include "stm8l15x_conf.h"
#include <stdio.h>
#include <stdarg.h>/* Private define ------------------------------------------------------------*/
#ifdef _RAISONANCE_
#define PUTCHAR_PROTOTYPE int putchar (char c)
#define GETCHAR_PROTOTYPE int getchar (void)
#elif defined (_COSMIC_)
#define PUTCHAR_PROTOTYPE char putchar (char c)
#define GETCHAR_PROTOTYPE char getchar (void)
#else /* _IAR_ */
#define PUTCHAR_PROTOTYPE int putchar (int c)
#define GETCHAR_PROTOTYPE int getchar (void)
#endif /* _RAISONANCE_ */void Uart1_Init(void);
void UART1_SendByte(u8 data);
void UART1_SendStr(u8 *str);#ifdef _IAR_
int fputc(int ch, FILE *f);
#endif#endif