tool/mbed/mbed-sdk/libraries/tests/mbed/echo_flow_control/main.cpp

   1 #include "mbed.h"
   2
   3 #if defined(TARGET_LPC1768)
   4 #define UART_TX             p9
   5 #define UART_RX             p10
   6 #define FLOW_CONTROL_RTS    p30
   7 #define FLOW_CONTROL_CTS    p29
   8 #define RTS_CHECK_PIN       p8
   9 #else
  10 #error This test is not supported on this target
  11 #endif
  12
  13 Serial pc(UART_TX, UART_RX);
  14
  15 #ifdef RTS_CHECK_PIN
  16 InterruptIn in(RTS_CHECK_PIN);
  17 DigitalOut led(LED1);
  18 static void checker(void) {
  19   led = !led;
  20 }
  21 #endif
  22
  23 int main() {
  24     char buf[256];
  25
  26     pc.set_flow_control(Serial::RTSCTS, FLOW_CONTROL_RTS, FLOW_CONTROL_CTS);
  27 #ifdef RTS_CHECK_PIN
  28     in.fall(checker);
  29 #endif
  30     while (1) {
  31         pc.gets(buf, 256);
  32         pc.printf("%s", buf);
  33     }
  34 }