\/\/example_uart_rcvIqr.c<\/p>\n\n\n\n
include \"example.h\"<\/p>\n\n\n\n
\/\/ test uart1 rcv irq
volatile char isRecv = 0;
char rxbuf[32];
void UART1_isr()
{
if (UART_IsRawIntActive(UART1, UART_INT_RX)) {
UART_ClearInt(UART1, UART_INT_RX);
UART_Receive(UART1, rxbuf, 8, 0); \/\/half: 16\/2=8
isRecv = 1;
}
}
void TestUart_rcvIrq(void)
{
const char txbuf[] = \"uart1 rx INT\\n\";<\/p>\n\n\n\n
GPIO_AF_ENABLE(UART1_UARTRXD)
GPIO_AF_ENABLE(UART1_UARTTXD);
SYS_EnableAPBClock(APB_MASK_UART1);<\/p>\n\n\n\n
UART_Init(UART1, 115200, UART_LCR_DATABITS_8, UART_LCR_STOPBITS_1,
UART_LCR_PARITY_NONE, UART_LCR_FIFO_16);<\/p>\n\n\n\n
UART_EnableInt(UART1, UART_INT_RX);
UART_SetRxIntFifoLevel(UART1, UART_INT_FIFO_HALF);
INT_EnableIRQ(UART1_IRQn, UART_PRIORITY);<\/p>\n\n\n\n
UART_Send(UART1, txbuf, strlen(txbuf));
while (1)
{
if (isRecv > 0)
{
UART_Send(UART1, rxbuf, 8);
isRecv = 0;
}
}
}<\/p>\n\n\n\n
\/\/ test uart1 simple tx and rx
void TestUart_simple(void)
{
char txbuf[] = \"simple uart1\\n\";
char rxbuf[32];<\/p>\n\n\n\n
GPIO_AF_ENABLE(UART1_UARTRXD)
GPIO_AF_ENABLE(UART1_UARTTXD);
SYS_EnableAPBClock(APB_MASK_UART1);<\/p>\n\n\n\n
UART_Init(UART1, 115200, UART_LCR_DATABITS_8, UART_LCR_STOPBITS_1,
UART_LCR_PARITY_NONE, UART_LCR_FIFO_16);<\/p>\n\n\n\n
UART_Send(UART1, txbuf, strlen(txbuf));
while (1)
{
int rLen = UART_Receive(UART1, rxbuf, 12, 0);
if (rLen > 0)
{
UART_Send(UART1, rxbuf, rLen);
}
}
}<\/p>\n","protected":false},"excerpt":{"rendered":"
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