Page 312 - 완) I MDP 프로젝트 작품 보고서(전체과 1학년)1.6

NVIC_EnableIRQ(USART1_IRQn);
}

void USART2_Configuration(void)
{
USART_InitTypeDef USART_InitStructure;
USART_InitStructure.USART_BaudRate = 9600;
USART_InitStructure.USART_WordLength = USART_WordLength_8b;
USART_InitStructure.USART_StopBits = USART_StopBits_1;
USART_InitStructure.USART_Parity = USART_Parity_No ;
USART_InitStructure.USART_HardwareFlowControl =
USART_HardwareFlowControl_None;
USART_InitStructure.USART_Mode = USART_Mode_Rx | USART_Mode_Tx;
USART_Init(USART2, &USART_InitStructure);
USART_ITConfig(USART2, USART_IT_RXNE, ENABLE);
USART_Cmd(USART2, ENABLE);

NVIC_EnableIRQ(USART2_IRQn);
}

void USART1_IRQHandler(void)
{
if(USART_GetITStatus(USART1, USART_IT_RXNE) !=RESET)
{
usart1=USART1_ReceiveData();
if(usart1=='a')
//라즈베리 파이가 ‘#’을 수신받았을 때 ‘a’를 송신할 수 있도록 만들었다.
{
if(pay!=0)
{
usart_last_cursor--;

if(usart_tag[usart_last_cursor][3]=='B'||usart_tag[usart_last_cursor][4]=='B')
{pay-=5000;}
else
if(usart_tag[usart_last_cursor][3]=='5'||usart_tag[usart_last_cursor][4]=='5')
{pay-=2000;}
else
if(usart_tag[usart_last_cursor][3]=='D'||usart_tag[usart_last_cursor][4]=='D')
{pay-=3000;}

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