STM8S003 串口接收字符串问题

问题描述 ：通过电脑串口工具经过485发送到单片机串口验证问题
现象
1.通过串口助手发送单个字节单片机可以正确接收正确返回
2.单片机发送字符串电脑串口助手可以正确接收数据
3.电脑串口助手发送字符串单片机接收不到正确数据

复制

void UART_Initializes(void)

{

CLK_PeripheralClockConfig(CLK_PERIPHERAL_UART1,ENABLE);

UART1_Init((uint32_t)9600, UART1_WORDLENGTH_8D, UART1_STOPBITS_1, UART1_PARITY_NO, UART1_SYNCMODE_CLOCK_DISABLE, UART1_MODE_TXRX_ENABLE);

UART1_Cmd(ENABLE);

UART1_ITConfig(UART1_IT_RXNE_OR, ENABLE);

//UART1_ITConfig(UART1_IT_IDLE, ENABLE);

GPIO_Init(RS485_RE1_GPIO_PORT, (GPIO_Pin_TypeDef)RS485_RE1_GPIO_PIN, GPIO_MODE_OUT_PP_LOW_FAST);

RS485_RE1_RE;

QueueInitial1();



enableInterrupts();

}

INTERRUPT_HANDLER(UART1_RX_IRQHandler, 18)

{ 

if(UART1_GetITStatus(UART1_IT_RXNE )!= RESET)

{

EnQueue1(UART1_ReceiveData8());



}        

/* In order to detect unexpected events during development,

it is recommended to set a breakpoint on the following instruction.

*/

}

void EnQueue1(INT8U b)

{

r_buf[end++]=b;

if(end>=MAX_BUF_SIZE)

{

end=0;

}

count++;

sem++;//OSSemPost(sem);



}

代码是正常的 串口工具显示问题

我感觉串口工具出问题的几率小